SUBJECT INDEX 399

Index of Subjects

Page numbers preceded by the letter S refer to the Supplementary issues

abandoned mineworkings, Durham S 101-$113 acid mine drainage (AMD) S101-Sl13 acid mine waters, hydrogeological processes S106-S110 acidization, Enfield-Haringey recharge scheme S123, S128 additives, in stabilization of sabkha soils 369-379 aerobic environment, Durham AMD S109-S110 aerobic wetlands, minewater treatment S110 aggregate resource assessment, 3D geomodeUing 385-391 airborne multispectral scanning, Ripon 84 alkaline mine waters S108 alluvial aquifers, evaluation for small-scale irrigation (Sahel)

$75-$90 alluvial deposits, high micaceous content of Bangladeshi and

Pakistani S163 alluvial formations, susceptibility to particle redistribution S152 anaerobic sulphate diagenesis, Pappadai Clay 15 anaerobic wetlands, minewater treatment S110 Ancient Zoar 360 anisotropy of permeability, Pakistan and Bangladesh alluvials

S171 anoxic conditions in groundwater, organic load $95 aquifer, London Basin Chalk 171-177 aquifer damage S151-S152, S159-S161 aquifers, Bahrain Island $64 arid soils (Libya)

carbonate cemented sands 106 engineering performance 105-130 negative pore pressures in 107 petrography 113-115 unsaturated 107-108

artesian conditions at Jubail, sabkhas 393 artificial recharge

Enfield-Haringey S115-S129 Lea Valley S 115 (North London) history S115-S119

ASTM C837-81, methylene blue tests 293 ASTM D2217, wet sieving of arid soils 115 authigenic sulphates 7 autobrecciation, lava flows 321

bacteria, sulphate reducing acidophilic 209 Bagnara Calabra

landslides back analysis 65 strength of rocks 66

Bahrain Island aquifer porosities $66 aquifers $64 climate and hydrology $64-$67 confined Neogene Aquifer $64 Dammam Group aquifers $64 geography and hydrogeology $63-$64 topography $63 water supply and drainage $67 water table levels $63--$74

bajada deposits, GMRP Phase II 110 Bangladesh, borehole test programme S173-S174 barchans, Fezzan Sahara 108, 113

Barlow ash mound, leachates as contaminants S 13 basalt breakdown, influence of zeolites 294 Bauchi State

alluvial aquifers $84-$90 aquifer recharge $88-$89 Fadama aquifer $85 geology and hydrogeology $84-$87 irrigation potential $89-$90 quantification of groundwater resource $88-$90

BGS Aquifer Properties Laboratory, data base S133 biogenic crusts, honeycomb weathering 334 bioremediation $98-$99 bitumen seepages, Dead Sea 352 blasting

effect on groundwater flow at Stripa Mine $28 in weathered rock 262

Blue Pool (Stanford Dingley), turbidity $34-$37 bond yield stress, Pappadai Clay 6 Book of Genesis 349, 359-360 boreability

cutter life 329 Katse tunnels 327, 329-330 Lesotho Highlands Water Project rock masses 323-324

borehole diameter, effect on yield 172 borehole geophysical logging, Bukit Timah Granite 155 borehole performance

alluvial aquifers S 151-S 162 effect of reduced permeability S172-S173 particulate damage S 15 l-S162

borehole yield factor 172 borehole yield predictions, London Basin Chalk 171-177

borehole yields, predicted in London Basin 174-175 boreholes

continuous coring 9 permeability impairment in micaceous aquifers S 163-S 175

Bradano Trough, Italy 6 BS5930:1981

alternatives to 282 application to core logging 277-282

background to weathered rock classification 267-276 BTEX $95 Bukit Timah Granite (Singapore)

discontinuities 157-159 engineering geology for caverns 153-163 faults 161 field and laboratory investigation 155 groundwater and hydraulic properties 155 in-situ stresses 157-159 in-situ testing 153-163 joint sets 161 material strength and deformation 157 Q-values 159, 161 RMR-values 159, 161 rock mass permeability 159, 161 RQDs 158 strength 161 Young's modulus 161

calcretes 106 capillary radius, Sherwood Sandstone S149

400 SUBJECT INDEX

capillary rise, coastal sabkhas 37 carbonate content, Pappadai clay 12-14 Carboniferous aquifers, Northern Ireland and Scotland 165-

167 Carboniferous sandstone, weathering 333-347 Carboniferous volcanics, Scotland 167-168 caverns, in Bukit Timah Granite (Singapore) 153-163 cement stabilized sabkha soils

effect of moisture content 375 Proctor values 372

Central Express Way (CTE), Singapore 154 CFEST, use at Stripa Mine research site $26--S28 Chad basin geology $77

landform and drainage $77-$79 river systems $80 superficial aquifers $81-$82

Chalk assessment of fracture frequencies $39-$40 bedding-normal (BN) fractures $41-$47 bedding-parallel (BP) fractures $41-$47 diagenesis and porosity S132 dry density frequency distributions S134-S 137 fracture apertures $39-$40, $44 fracture connectivity $44 fracture trace lengths $43-$44 groundwater levels (London Basin) $55-$61 as a karstic aquifer $31-$38 matrix porosity S132-S133 North London piezometric map S124 orientation of fractures $40-$47 origin and preservation of porosity S 132 parallel-plate fracture model $39 porosity and dry density S131-S142 porosity regional variations S137-S140 porosity S133-S134, S136, S137, S140 as a quasi-porous flow aquifer $31 regional fracture trends $39 total porosity frequency distribution S 134-S 137 weathering classification (Hog's Back monocline) 285

Chalk aquifer London Basin 171-177 Northern Ireland 167 rise of groundwater (London Basin) $51-$62

Chalk and Basal Sands aquifer system, North London S125 Chalk of England, matrix porosity/dry density and mechanical

behaviour S 13 l-S132 Chalk fracture system $39-$50 Chalk groundwater levels (London Basin), control by pumping

S61 Chalk of the North Sea, porosity distribution $131 Chek Lap Kok Platform

borrow area 387-391 assessment of resources quality 389 geological modelling 387-389 potential workable aggregate resources 389-390 reliability of estimates 390

chemical weathering 245-247 Clarens Formation 319-320 Clarens Formation sandstones

durability 327 erodibility 328 ethylene glycol tests 328 moisture content 327

pyrite oxidation 328 strength 328 X-ray diffraction analysis 327

clay complexes, and liquid permeability of sandstones S148 clay minerals, Pappadai Clay 5-22 climate shifts, Fezzan Sahara 110 coarse grained arid soils, collapse settlements 106 coastal sabkhas, moisture environment 37 coastal sediments, Dahban, E-type and W-type 38 coccoliths, in Pappadai Clay 15 collapsing soils, microstructure 106 compaction, Pappadai Clay 5--22 compressive strength, cement stabilized sabkha soils 374-375 conduits, groundwater flow in Chalk $46-$47 core analysis, quantification of aquifer heterogeneity S 150 core logging

application of BS5930:1981 277-282 lithology specific classification 282-285

coseismic groundwater movement 65 Council of European Communities 179 cracks in lining, Katse Delivery Tunnel North 330-331 crazing, Drakensberg basalts 322 cross-hole geophysics, Stripa Mine project $23, $28 cross-hole hydraulic testing, Stripa Mine research site $22, $23 cutter life

boreability 329 tunnelling conditions 330

Dahban sabkhas 37--40 drying time and salinity 42 mechanisms of evaporation 46 moisture retention 42-45

damaged wells, recovery methods S 152-S 153 Dead Sea

bitumen seepages 352 catastrophes in antiquity 357 earthquakes 357, 358 Eastern Border Fault 350, 351,357, 360 geology 350 maximum credible earthquake 357 North Basin 350, 352, 360 paleolimnology 352 recent deposition 351 South Basin 350--351,360 stratigraphy 350-351 tensional transverse faults 350 tsunamis in antiquity 357 US Naval Expedition 360 water levels in antiquity 352-353

Dead Sea Fault 75 Dead Sea South Basin, micritic silts 351-352 Dead Sea Works Ltd. 351 Dead Sea-Jordan rift valley 75 dehydration, and weathering 209 deuteric alteration, Drakensberg basalts 292, 321 Devonian aquifers, Scotland and Northern Ireland 165-167 diagenesis, Pappadai Clay 15 diagenetic processes, weathering in Sherwood Sandstone Group

285 diamictons s e e Dublin Black Boulder Clay; Dublin Brown

Boulder Clay; Dublin diarnictons digital terrain model (DTM) 65, 66, 73 discontinuity systems, Bukit Timah Granite 157, 158

SUBJECT INDEX 401

dissolution subsidence (Ripon) 93 dolines $32--$33 Drakensberg Basalts 319

alteration breakdown and durability 287-302 deuteric alteration 292 durability 294-301,321-322 ethylene glycol index values 294-296 freeze-thaw tests 301 geology 287-290 methylene blue tests 290, 293 mineral alteration 321-322 mineralogy and petrology 289-294 water absorbtion tests 298-299 water soak tests 296

Drakensberg Formation 320 dolerite dykes 320

Drakensberg granites free swell tests 297-298 wet and dry tests 299-301 X-ray diffraction tests 290, 292-293

DRASTIC relative rating system 179 drawdown and yield, in Chalk 173 Drax Power Station PFA

Barlow mound $2-$3 chemistry $6-$7 depth profiles of major ions $5-$6 depth profiles of porewater trace elements $6 major cations $9-S11 mineralogy $7-$9 porewater chemistry $3-$6 trace cations $6, S11-S12 weathering reactions $9-S12 whole analysis $3

dredging, Hong Kong 386 drilling, damage to aquifers S151 dry density, Chalk of England, regional trends S131-S142 dry sieving, add soils 115--117 dual-porosity modelling, Chalk $47 Dublin Black Boulder Clay 143, 145, 146 Dublin Brown Boulder Clay 143-152 Dublin diamictons 143-152

chemical composition 150--151 fabric analysis 148-149 geotechnical properties 145-146 lithology of clasts 146-148

dunes, Fezzan Sahara 108 durability, Clarens Formation sandstone 327 Durham minewater study S102-S106

E-type coastal sediments, Dahban 38 earthquakes

Dead Sea region 357, 258 and landslides 47, 61-74, 316

East African Rift system 75 Eastern Border Fault, Dead Sea 360 Eastern Escarpment Fault, Dead Sea 351 Ebla tablets 349 ELDA landfill site 23 electrical resistivity measurements, boreholes at Stripa Mine

$21 electrical resistivity surveys, Bukit Timah Granite 155, 158 EM31 surveys, near Ripon 84 emulsified asphalt, stabilization of sabkha soils 374

Enfield-Haringey recharge scheme acidization S123 borehole drilling and testing S119-S121 geology and hydrogeology S115-S129 groundwater level fluctuations S127 hydrochemistry and water quality S127-S128 piezometry and ground water movement S126-S127 potential yield S123-S124 well performance S121-S123

engineering effects on weathering 212-215 in weathered rock 253-266

engineering time, and weathering 249 environmental concern, PFA leachates S14 EPA methodology, in groundwater vulnerability assessment

179 equivalent discontinuum models, Stripa Mine research site $27 erodibility, Clarens Formation sandstone 328 erosion, unlined tunnel simulation 328 Erzincan Earthquake 31 3-316 ethylene glycol index values, Drakensberg basalts 294-296 ethylene glycol tests, Clarens Formation sandstone 328 evaporites

solution of in Mercia Mudstone 285 and weathering 212

excavation, in weathered rock 262

fadamas (Nigeria), water boreholes $83 faults, in Singapore 154 Fezzan arid soils

Atterberg limits 116-117 California bearing ratio 121-122 carbonate content 115 collapse potential 124-126, 127 compaction 117-121 microstructure and collapse 127 particle size distribution 115 plate loading tests 122-124 specific gravity 115

Fezzan Sahara, geomorphology 108-110 field tests, hydraulic fracturing 23-35 fissure-type aquifer 172 flow experiments, Stripa Mine research site $23-$25 flow and solute transport, Chalk fracture systems $39-$50 FLOWPATH $37 Forest of Dean Stone

honeycomb weathering 335 micro-delamination 341 petrographic microscopy 339-341 SEM microscopy 337 swelling of clay matrix 341 water extracts analysis 341-345 X-ray analysis (EDXRA) 337 XRD analysis 337, 339

fossil deltas, satellite imagery (Chad) $77 foundations, in weathred rock 262-263 FRACMAN $27 fracture apertures, Chalk $39-$40, $44 fracture flow systems, limitations of zone modelling $37 fracture frequencies

Chalk $39-$40, $42-$43 Stripa Mine research site $21

fracture zone index (FZI) $21-$22

402 SUBJECT INDEX

fracture zones, at Stripa Mine S19, $23 free swell tests, Drakensberg granite 297-298 freeze-thaw tests, Drakensberg basalts 301 FRISK 76 Friuli earthquake (1976), and rockfalls 63

Geographic Information System (GIS), use in groundwater vulnerability 174-194

geogrids, sand reinforcement 363-367 Geological Society Engineering Group, Working Party report

on weathered rocks 207-242 geotechnical data, quality 381 geotextiles, sand reinforcement 363-367 ghibli, Fezzan Sahara 108 GIS systems 180-182 glaciation, Dublin area 144 Glover scheme, minewater classification S104-S105 GMRP Phase II

aeolian deposits 113 bajada deposits 110 Cretaceous and Palaeocene limestones 110 general stratigraphy 111 geology 11 0-113 laboratory testing 113 Oligocene deposits 112 Oligocene--Miocene basalts 110 playa and salina deposits 112 proluvial deposits 113 Quaternary deposits 112 river alluvia 112 wadi deposits 113

Grassano, seismic reactivation of rotational slip 63 Great Man-made River Project (GMRP) 105-106, 110 Great Rift Valley system (Africa) 350 Greater London, relative groundwater vulnerability map 189 greigite, in Pappadai Clay 7 ground fissures, in Xi'an, China 1--4 ground water, abstraction and subsidence 2 groundwater

remediation of hydrocarbon pollution $93-S100 resource study in Bauchi State (Nigeria) $84-$90 in Scotland and Northern Ireland 163-169 vulnerability tc pollution (SE England) 186-190

groundwater flow in Chalk fractures $44-$47 effect of excavation blasting at Stripa Mine $28 effect of mechanical disturbance at Stripa Mine $28 numerical modelling at Stripa Mine research site $26-$28

groundwater levels Enfield-Haringey S125-S126 modelling of rise (London Basin) $51-$62

groundwater movement, coseismic 65 groundwater (Northern Ireland), physical background 164-165 groundwater perturbation, Stripa Mine S19 groundwater pollution, and PFA weathering S1-S15 Groundwater Protection Policy, Scottish Office 168 groundwater protection $36-$37 groundwater provinces 163-169 groundwater recharge, Scotland and Northern Ireland 168 groundwater remediation

air sparging $98 oil skimming $97 on-site $98-$99

pump and treat $96-$98 removal by boreholes $97 vacuum extraction $98

groundwater resource potential Northern Ireland 168 Scotland 168

groundwater salinity, specific capacity of wells S165 groundwater (Scotland), physical background 164-165 groundwater vulnerability, UK 182-186 groundwater vulnerability assessment, GIS methodology 179-

194

hazard mapping, landslide and erosion 47--60 Heathrow Airport, hydrocarbon groundwater pollution S94 heave and settlement, coastal sabkhas 37 Hibernian Green Sand Formation, Northern Ireland 167 historic monuments, survey and recording 201-205 Hog's Back monocline, weathering classification of Chalk 285 horizontal shear zones, lava flows 321 hot arid coarse grained soils 106-108 hot springs, Sembawang (Singapore) 158 hydration, and weathering 209 hydraulic fracture, initiation and growth 32-33 hydraulic fracture form, Mill Creek test site 28-31 hydraulic fractures

in consolidated glacial drift 23-35 direction of propagation 31 idealized forms 27-29 recovery of contaminants 23

hydraulic fracturing, field tests 23-35 hydraulic transmissivity, disturbed zones around tunnels $27 hydrocarbon groundwater pollution, Heathrow Airport $94,

$95 hydrocarbon pollution

Brazi (Romania) $94, $95 in groundwater $93-S100

hydrolysis, silicate minerals 209

illite, in Pappadai Clay 14 in situ stresses, Bukit Timah Granite 156-157 Ineson method, transmissivity calculation 175 Institute of Geological Sciences, UK, statistical procedures 390 Intensity attenuation, Jordan 78-79 intergranular bonding, weathered rocks 214 International Society of Soil Mechanics and Foundation

Engineering, TC3 107 intrinsic permeability, gas slippage S143-S147 invert crazing, Katse Tunnel 324, 325 Irpinia earthquake (1980), landslides and mudflows 63 irrigation, small-scale in southern Sahel $75-$90 Iullemeden basin

geology $77 landform and drainage $79-$80 superficial aquifers $82-$83

joints, strength of 158 Jordan

earthquake catalogue 77 iso-acceleration map 78 iso-intensity map 78 probabilistic seismic hazard assessment 75--81 seismic sources 76 tectonics of 75-76

SUBJECT INDEX 403

Jordan-Arava graben 350 Jubail, artesian conditions 393 Jubilee Line Extension 97-104

diaphragm walls 103, 104 geological section 98 instrumentation 101 study of subsidence 104

Jurong Formation (Singapore), age 154

kaolinite, in Pappadai Clay 14 Karbala sand, Iraq 363-364 Karoo Super Group 319 karstic aquifer, Chalk as $31-$38 Karstic cave systems, in Chalk $33 Katse Dam

concrete aggregate 323 construction 322-325 Lesotho 317 site geology 320-321

Katse Delivery Tunnel North boreability tests 329-330 cracks in lining 330-331 geological section 329 ground support 330 NHT tests 329-330 rock types encountered 328

Katse Delivery Tunnel South geological section 326 rock mass ratings 326 support classes 326 vertical stresses 326

Katse Tunnel invert crazing 324, 325 methane 324 probing ahead 324 rock bolts 324 Shore scleroscope 325 Taber abrasion test 325

Katse tunnels, boreability tests 327 Klinkenberg's capillary radius, Sherwood Sandstone S149 Klinkenberg's gas slippage theory S150

Lacus Asphaltitis 352, 359 Landsat images, Dahban 40 landscape lowering, Papua New Guinea 49 landslide and erosion, hazard mapping 47-60 landslide hazard assessment 64 landslides, triggered by earthquakes 47, 61-74, 316 landslides back analysis 65 lava flows

autobrecciation 321 horizontal shear zones 321 palaeo-weathering 321

Lea Valley, artificial recharge S115 leachates, from weathered PFA S13-S14 Lesotho Highlands Water Project

engineering properties of rock types 323 geology 319-320 geotechnical survey 317-332

Libyan Fezzan, coarse grained arid soils 105-130 lichen, on Forest of Dean Stone 341 limestone, misidentification, Ripon 84 liquefaction

Irpinia earthquake (1980) 63 Messina earthquake (1908) 63

liquidity index profiles, Pappadai 21 Lisan Peninsula 349, 350, 351,359 lithology specific classification, core logging 282-285 LNAPLs, in groundwater $93 locked-in strain energy 244 London Basin

Chalk groundwater levels $55 geology $52-$54 modelling of groundwater rise $51-$62 strategies for control of rising groundwater levels $57-$61 water abstraction from confined Chalk $53

London Basin Chalk aquifer 171-177 London Basin groundwater model

aquifer parameters $54 baseline scenarios S56-$57 calibration and validation $54-$56 hydrogeological factors $54 predictions $56-$61 rainwater recharge and abstraction $54

London Basin groundwater model $52-$56 Lorong Asrama depression (Singapore), shear zone 158 Lot's wife 360 Lugeon testing, Bukit Timah Granite 155, 159

Madaba mosaic map 353, 359 Magnesian Limestone aquifer, Durham S108 marine bioclastics 106 mass permeability, weathered rocks 214 Mass Rapid Transit (MRT), Singapore 154 mass weathering terms 251 matrix porosity, Chalk of England, regional trends S 131-S 142 matrix suction, arid soils 107 maximum credible earthquake, Dead Sea 357 MBA test s e e methylene blue tests Megachad sediments $77 Mercia Mudstone, evaporite solution 285 Merrion Hall site, diamicton study (Dublin) 145 Messina earthquake (1908) 61-74

seismically triggered landslides 61-74 metavolcanics (leptites) Stripa Mine S19 methane, Katse tunnel 324 methylene blue tests

ASTM C837-81 293 Drakensberg basalts 290, 293

mica particle alteration, permeability impairment S172 mica particles, movement and realignment S170-S171 micaceous aquifers

chemical weathering S 169-S 170 formation gravel pack mixing S 167-S 169, S 171-S 172 permeability impairment around boreholes S163-S175

micaceous aquifers impairment, laboratory studies S166-S170 micritic particle size distribution, Sedom Clay 354 micritic silts, Dead Sea South Basin 351-352 micro-delamination, Forest of Dean Stone 341 microbial sulphate reduction, Durham AMD S108-S109 microgravity geophysics, investigation of dissolution substance

83 microgravity surveying, statistical analysis 88 microstructure and texture, influence on durability of mudrocks

303-312 Mill Creek test site 23

404 SUBJECT INDEX

borehole design 25 field test data 26 fracture procedures 26 hydrology 24 injection fluids 26 in situ stresses 25 soil properties 24-25 stratigraphy 24

mineralogy, Pappadai Clay 14, 15 minewater classification

Durham S103-S106 proposals for new schemes S105 US Bureau of Mines scheme S105

minewater treatment aerobic and anaerobic wetlands S110 economics of wetlands S11 l--S112 passive S110

minewaters abandoned workings (County Durham) S101-S113 hydrogeochemistry S101-S113

misclassification matrix 381-384 moisture retention, coastal sabkhas 37-46 Montemesola Basin, Italy 6, 7 motorways run-off, groundwater pollution 186-187 Mount Fubilan (Ok Tedi) ore body 47--49 mudflows, Irpinia earthquakes (1980) 63 mudrocks, durability 303-312 Muela Hydrtr-electric Power Station 317

NAPSAC $27, $28 National Centre for Information Analysis (NCGIA) 381 National Rivers Authority (NRA) 179 Neogene Aquifer, source of off-shore springs (Bahrain) $64 Newmark displacement calculations 62, 66 NGI Tunnelling Quality Q-system, Bukit Timah Granite 159 NHT tests, Katse Delivery Tunnel North 329-330 Nigeria, water to small family units $83 North Anatolian Fault 313 Northern Ireland, groundwater 163--169 Norwegian Institute of Technology (NTH), boreability tests

324-325 nuclear waste disposal, Stripa Project S17-$30

oases, Fezzan Sahara 108-110 ochre

clue to geochemical processes S106 and H2S (Durham) S107 XRD analysis S106

offshore springs, Bahrain $67 oil pancake, $94-$95, $97 oil spill, components $94 Ok Tedi

engineering geological proforma 52 geomorphological map 53 hazard and risk classifications 51, 54--59 hazard and risk rating 54-56 limestone and siltstone weathering 50 rock and soil slopes stability 57, 58 soil slopes height-angle-stability 58

Ok Tedi copper mine landslide and erosion hazard mapping 47-60 regional geomorphology 48-49

olivine, alteration in Drakensberg basalts 321

olivine basalts, durability tests 301 organic load, anoxic conditions in groundwater $95 osmotic suction, arid soils 107

palaeo-weathering, lava flows 321 Palaeogene volcanics, Scotland 167-168 Pappadai Clay

bonding 6 carbonate content 12-14 clay minerals 5--22 microstructure 6 oxidation 21 preconsolidation stress 6

Pappadai clays, geotechnical properties of pleistocene clays 5-22

Papua New Guinea, landslide and erosion hazard mapping 47--60

particle breakdown, micas S170 particle mobility, in alluvial aquifers S151-S162 particulate damage, water wells S151-S 162 particulate movement

uniform porous structure S158 within gravel packs S 158-S 159 within stable media S 155-S 156

particulate removal, drilling fluids S 153-S 155 pavement damage, by salt blisters 106 peak ground acceleration (PGA), attenuation (Jordan) 78 permeability, liquid/gas correlation S 143-S 150 permeability impairment

chemical mechanisms S166 physical mechanisms S166

Permian aquifers Northern Ireland 167 Scotland 167

petrographic microscopy, Forest of Dean Stone 339-341 petrography, arid soils 113-115 PFA composition, changes during weathering $6 PFA sampling, Drax Power Station $2-$3 PFA weathering, and groundwater pollution S1-S15 physical weathering 244 piezometers, at Pappadai 10, 17 piling, in weathered rock 263 pipe-bedding materials 110, 114, 117 pipelines, GMRP 105-130 Piper scheme, minewater classification S104 plagioclase, Drakensberg basalt 321 plate loading tests, weathered rocks 215 Pleistocene alluvium, Jama'are valley $77 Pleistocene clays

geotechnical properties 5-22 Pappadai Valley, Italy 5-22

pollution, hydrocarbon $93-S100 polymer and foam drilling fluids, in well rehabilitation S152 pore pressure profiles, Pappadai 20 preconsolidation stress, Pappadai Blue Clay 6 predictive hydrogeological models, validation at Stripa Mine

$27 predictive modelling, London Basin groundwater levels $56-

$61 Prescribed Concentration Value (PCV), presence of hydro-

carbons $95-$96 principal stress ratios at failure, effect of geogrid stiffness 366 probabilistic seismic hazard assessment, Jordan 75-81

SUBJECT INDEX 405

probe drilling from TBM 330 Katse tunnel 324

Proctor values, stabilized sabkha soils 371-372 pump start-up simulation S157 pyrite, in Pappadai Clay 7 pyrite oxidation 328, S101

Quaternary aquifers, Scotland and Northern Ireland 168 Quaternary deposits, Dublin 143-152

radar difference tomography, at Stripa Mine research site $25- $26

radar investigations, Stripa Mine research site fracture zones $23

radar reflectors, Stripa Mine research site $21, $22 radon activities

fracture apertures $40-$41 geochemical modelling $40-$41

Ras A1-Ghar, sabkha stabilization experimental programme 370-371

rebound, effect of rapid excavation 244 Redcar steelworks

misclassification of strength matrix 382-384 shear strengths 382-383

relict bonds, weathered rocks and soils 214 remediation

of groundwater hydrocarbon pollution $93-S100 in-situ $99

Reynolds number, complex pore structures S148 rock avalanche type failures, Ok Tedi 49 rock bolts, Katse Tunnel 324 rock durability 250 rock mass, weathering stages 273 rock mass classification, weathered rocks 215 rock mass quality, Bukit Timah Granite 155 Rock Mass Rating (RMR), Bukit Timah Granite 159 rock mass zoning, problems of scale 282 rock material

weathering index tests 220-222 weathering stages 273

rock weathering, description difficulties 277-286 rockfalls, Friuli earthquake (1976) 63 rupture length-magnitude relation, usage in Jordan 77

sabkha soils artesian conditions at Jubail 393 distribution in Dahban area 38 moisture retention characteristics of coastal 393 stabilization by additives 369-379 zoning of 39, 40

Sahel, climate $75-$76 saline--radar tracer $25-$26, $28 salt blisters, pavement damage 106 salt crystallization, honeycomb weathering 333 sand density, and geogrid reinforced sand strength 367 sand strength

geotextile 363--367 reinforcement 363-367

saussuritie alteration, Drakensberg basalt plagioclase 321 scanning electron micrographs 18-20 Scotland, groundwater 163-169 Scottish Office, Groundwater Protection Policy 168

secondary mineral rating (Rsm) 293-294 Sedom Clay

cyclic shear strength 356 Dead Sea 351-352 geotechnical properties 355 liquefaction potential 354--358 micritic particle size distribution 354 mineralogical composition 354 origin as chemical precipitate 355 radiometric dating 352 vane shear strength 357

seismic hazard mapping, Jordan 75-81 seismic line source model (LSM), Jordan 76--77 seismic refraction surveys, Bukit Timah Granite 155, 158 seismic sources, Jordan 76 seismic velocity, weathered rocks 214, 215 seismically triggered landslides

geomorphological controls 61-74 infinite slope model 65 inter-relation matrix 72

seismicity Dead Sea 357 and terrain hazard mapping 49

SEM microscopy Drax Power Station PFA $3, $7 Forest of Dean Stone 337, 339-344

shallow aquifers 163-169 shear zone, Lorong Asrama depression (Singapore) 158 Sherwood Sandstone Group

capillary radius S149 gas permeability S145 liquid and gas permeabilities S144-S150 liquid permeability S145

Shore scleroscope, Katse tunnel 325 sinkhole collapse, triggering of $33 slake durability tests, Walkato Coal Measures mudrocks 304-

305, 307-308 slope failure, South Bay Close (Hong Kong) 254 slope failure envelopes, static and earthquakes stresses 70 slope instability, and weathering 248 slope stability calculations, parameters for (Bagnara Calabra)

66 slopes

geotechnical models 255-257 hydrogeology of weathered 256--257 in weathered rock 263

smectite, in Pappadai Clay 14 Snowy Mountain classifications, weathered rocks 267-269 Sodom

destruction by fire 360 location 35%360

Sodom earthquake 357-359 Sodom and Gomorrah

destruction of 349-362 geotechnical aspects of destruction 349--362

soil stabilization, sabkhas 36%379 soil washing $98, $99 soil water suction, arid soils 107 solute transport, in Chalk fracture systems $47-$49 solution weathering 209 sonic velocity, boreholes at Stripa Mine research site $21 sparging, removal of volatile hydrocarbons $98 SSC zones, London Basin 173

406 SUBJECT INDEX

stability of slopes, during earthquakes 61--62 standard specific capacity (SSC) 173 static cone penetration testing, Ripon 91 Strabo 353, 357, 358, 359, 361 strain energy, rebound 244 Straits of Messina, landslides 64-65 stresses

in Bukit Timah Granite 156-157 and weathering 210-211

Stripa Mine conceptual model of SCV site $21-$22 fracture zones S 19 as hydrogeological sink S19 regional geology and structure S18-S19 research at S17-$23 research site structure $22-$23 SCV Project S19-$20

Stripa Mine research site flow and transport experiments $23-$26 fracture zones $23 geology and hydrogeology S18--S19

Stripa Project high-level nuclear waste disposal Sl 7-$30 site assessment S17-$30

structured soils, Libya 106 subsidence

and groundwater abstraction 2 walkover observations (Ripon) 88

subsidence prone belt, Yorkshire 83 sulphides, direct oxidation 209 surge tests, detrimental effects in micaceous sediments S171 swallow holes

groundwater contamination $33 hydrogeological significance $33-$34 Stanford Dingley $34-$37 sub-Tertiary Chalk surface $31-$33 and subsidence $33

Taber abrasion test, Katse tunnel 325 tafoni 334 Tallaght site, diamicton study (Dublin) 145 tectonics

of Jordan 75--76 of London Basin $42

terrain hazard mapping 49-54 texture and microstructure, influence on durability of mudrocks

303-312 texture and mineralogy, Waikato Coal Measures mudrocks 306 three-dimensional discrete fracture code FRACMAN $27 three-dimensional discrete fracture flow model NAPSAC $27 three-dimensional geomodelling, aggregate resource assessment

385-391 three-dimensional scientific information systems (3D-GSIS) 385 tombstone weathering 245 tracer measurements

fluorescein $35-$36 and radar difference tomography $25 Stanford Dingley (UK) $31-$38 Stripa Mine research site $25-$26

transmissivities, Enfield-Haringey S119 transmissivities (London Basin Chalk) 171-177 transport experiments, Stripa Mine research site $25-$26 trial trenching, Ripon 91-92

Triassic aquifer, Northern Ireland and Scotland 163-169 tsunami in antiquity, Dead Sea 357 tunnel boring machines (TBM) 317

estimation of advanced rates 323-324 tunnelling conditions, cutter life 330 tunnels, in weathered rock 263 turbidity

Blue Pool (Stanford Dingley) $34-$37 and swallow holes $34-$37

two-phase fluid flow, Stripa Mine research site $28

Ulster White Limestone Formation 167 undersaturation, liquid permeability tests S148 unsaturated arid soils 107-108 US Bureau of Mines scheme, minewater classification S105 US Environmental Protection Agency (EPA) 179 US Naval Expedition, Dead Sea 360, 361

Vale of Siddim 357, 359 vertical stresses, Katse Delivery Tunnel South 326

W-type coastal sediments, Dahban 38 Wadi Kerak 350, 351,359 wadis, Fezzan Sahara 110 Waikato Coal Measures mudrocks

durability 303-312 microstructure 306-307 slake durability 308-311 texture and mineralogy 306 unconfined compressive strength 306 X-ray diffraction 304--305

WAPDA S 164 waste transport

GIS routing methodology 190 and groundwater pollution 190-192

WATEQ4F speciation program S103, S107, S108-S110 water absorption tests, Drakensberg basalts 298-300 water abstraction, from confined Chalk $53 water boreholes, North London S116 water extracts analysis, Forest of Dean Stone 341-345 water quality, changes with recharge S117 Water Resources Act 1991 179 Water Resources Board 171, 176 water soak tests, Drakensberg basalts 296 water table analyses, Bahrain Island $67-$73 water table rebound, Durham S102-S103 water table variations (Bahrain), statistical analysis $63-$74 water-bearing rocks

Northern Ireland 165 Scotland 165

weathered Hong Kong granite, classification 269-271 weathered rhyolite, shear strength envelopes 214 weathered rock

blasting in 262 construction in 262-264 criteria for mass description 222 description 222-227 description and classification 201-204 engineering in 253-266 excavation in 262 foundations in 262-263 investigation techniques 253-255 mass permeability 214

SUBJECT INDEX 407

photographs 230--241 piling in 263 site investigation 253-257 slopes 263 Snowy Mountain classification 267-269 tunnels 263

weathering 243-252, 287-302 biological agencies 247 Black Dublin diamicton 152 Bukit Timah Granite 155-157, 161 Carboniferous sandstone 333-347 chemical 245-247 chemical processes 208, 209-210 clay matrix saline reactions 345 coping stones (Weston-super-Mare) 338 depth of in Singapore 156 effect of plant growth 245 effects at small (material) scale 212-214 effects on engineering 212-215 effects of engineering works 212 in engineering time 249-250 and external stresses 211 Forest of Dean Stone 336 of historic monuments 201-204 ice and crystal growth 244 and in-situ stresses 210-211 lithological factor 334 and local climate 245 in a mass 249 mass weathering terms 251 mechanism 345 misinterpretation of 215 misleading impressions of fracture state 212 Ok Tedi 50 of PFA S 1-S 15 physical 21 0-211,244 rapid removal of evaporites by flowing groundwater 212 and rebound 244 and seismic velocities 214 and slope instability 248 of typical rock types 247-249 under water 247 Weston-super-Mare sea wall 333-347 wetting and drying 244

weathering classification, Bukit Timah Granite 156 weathering classifications 201-204, 215-222, 267-276

evolution of 216 history of 218-219, 271-273 need for 217

weathering grades, in rock mass 272 weathering rates 211-212, 249-250 weathering in Sherwood Sandstone Group, diagenetic processes

285 weathering stages

rock mass 273 rock material 273

well characteristics, Pakistan and Bangladesh S164 well drilling and development

in alluvial aquifers S 159-S 161 loss of fines S160-S161

well operation, minimization of particulate damage S 161 wells

deterioration in Pakistan S163-S166 maintenance and rehabilitation S161 rehabilitation using polymer and foam drilling fluids S152

Weston-super-Mare sea wall, honeycomb weathering 333-347 wet and dry tests, Drakensberg granites 299-301 wetlands, in minewater treatment S 110-S 112 Working Party report on weathered rocks 207-242

X-ray analysis (EDXRA), Forest of Dean Stone 337 X-ray diffraction

Drax Power Station PFA $7 Dublin diamictons 151 Waikato Coal Measures mudrocks 304-305

X-ray diffraction analysis Clarens Formation sandstone 327 Drakensberg granites 290, 292-293

X-ray fluorescent spectrometry, Drax Power Station PFA $3 Xi'an, China, active ground fissures 1-4 XRD analysis, Forest of Dean Stone 337, 339, 341

yellow ochres S107

zeolites hydration 322 influence on basalt breakdown 294

zeolitization, of Drakensberg basalt plagioclase 321 zoning, of SSC (London Basin Chalk) 173-174

408 INDEX OF LOCALITIES

Index of Localities

Page numbers preceded by the letter S refer to the Supplementary issues

Africa $75-$90 Algarve (Portugal) 241 Altiplano (Bolivia) 127-135 Armagh, County (NI) 166 Australia 5-17, 131, 185-192, 248 Austria 185-192

Bab-ed-Dra (Jordan) 349, 360 Bahrain $63-$74 Bangladesh S163, S171 Bauchi State (Nigeria) $84-$88 Belfast (NI) 168 Berkshire (UK) $31-$38, $41 Bolivia 127-135 Brazil 237 Bucklebury (UK) $35

Calabria (Italy) 61 Catak Village (Turkey) 99-108 Chad Basin $77, $81-$82 Chek Lap Kok (Hong Kong) 81,385-387 China 1-4, 205-216

Dahban, Saudi Arabia 37-46 Dead Sea 75-81,349, 350, 353, 361 Dublin (Ireland) 143-152 Dumfries and Galloway, County (UK) 168 Durham, County (UK) S101-S113

East Anglia (UK) $131, S138, S139-S140 Eastern Europe $93 Enfield (UK) S 115-S 129 England 179--180, 182-183, 185-187, 189-190, 235,

S101, S102, S131, S138-S140, S143 Erzican City (Turkey) 113-116

Favazzina (Italy) 63, 66, 67, 69, 71 Fermanagh (NI) 166 Fezzan (Libya) 105-130 Finland S 19 Friuli (Italy) 63

Germany $47 Gloucestershire (UK) 336

Harare (Zimbabwe) 236, 237 Haringey (UK) S115-$129 Heathrow Airport, London (UK) $93, $94, $95, $97 Herefordshire (UK) $33 Hong Kong 2-4, 19-24, 81-98, 210, 211,230, 233, 238,

253, 254, 255-258, 269-271,385-387 Humberside (UK) 299

India 155-157 Iraq 359-368 Ireland 143-152 Isle of Dogs (UK) $58, $61 Italy 5-22, 61-74, 201-205 Iullemeden Basin (Niger) $77, $79, $82--$83

Jamaica (West Indies) 61-67 Jordan 75-81,349, 360 Jubail (Saudi Arabia) 370, 393

Kent (UK) 239, 241 Kuwait City $73

Lantau (Hong Kong) 81-98 Las Vegas, Nevada (USA) 376 Lea Valley (UK) $57-$58, S 115-S 129 Lesotho 287, 317-332 Libya 25-60, 105-130 Lincolnshire (UK), 299, 312-316, S140 Lissan (Jordan) 350-352, 359 London (UK) 97-104, 171-177, $34, $41, $51-$62,

S115-S129 Londonderry (NI) 165 Lough Neagh (NI) 164, 166 Lower Lough Erne (NI) 166

Messina (Italy) 65 Midland Valley, Scotland (UK) 167 Midlands, UK 179, 180, 182-183, 185 Mt Xishan, Taiyuan (China) 205--216

Nevada (USA) 211,376 New South Wales, Australia 131 New Zealand 163-178, 303, 304 Niger $75, $77, $78, $81-$82, $83 Nigeria 137-148, $75, $77, $79, $83, $84-$88 Norfolk (UK) 245, 246 North Island, New Zealand 163-178, 303, 304 Northern Ireland (UK) 163-169

Ok Tedi (Papua New Guinea) 47-60

Pakistan S163, S164, $171, S174 Pappadai Valley (Italy) 5-22 Papua New Guinea 47-60 Portugal 241 Preston (UK) 263 Punjab S 165, S 172

Red Sea 37-46 Redcar (UK) 382-383 Repulse Bay (Hong Kong) 254 Ripon, Yorkshire (UK) 83-94, 201-205 Romania $94, $95

INDEX OF LOCALITIES 409

Sahel (West Africa) S75-$90 Sao Paolo, Brazil 237 Saudi Arabia 37-46, 369-379, 393, $73 Scotland (UK) 163-169 Sellafield (UK) 231 Shropshire (UK) 279 Singapore 153-162 Sodom and Gomorrah 349-362 South Africa 317-332 South Aukland (New Zealand) 304 South Humberside (UK) S140 Spain 69-76 Straits of Messina (Italy) 61-74 Sweden S 17-$30 Sydney (Australia) 5-17

Tallaght (Ireland) 145, 146, 148 Taranto (Italy) 5-22 Thailand 132 Thames and Chilterns (UK) S131, S138, S139, S140

Tripoli (Libya) 110 Turkey 99-108, 313-316 Tyrone, County (NI) 165, 166

UK see under names of individual localities USA 23-35, 211,376

Vale of Siddim 357, 359

Wadi Kerak (Jordan) 359 Wales (UK) 179, 297-298, Sll0 Weston-super-Mare (UK) 333-347 Wymondham Abbey, Norfolk (UK) 245, 246

Xi'an (China) 1-4

Yorkshire (UK) 83-94, 161-162, 201-205, 233, 301, $2-$3, S145

Zimbabwe 236, 237

410

Index of Authors

Page numbers preceded by the letter S refer to the Supplementary issues

Acar, I. A. 313 A1-Amoudi, O. S. B. 369 A1-Homoud, A. S. 75 A1-Omari, R. R. 363 A1-Saify, M. 37 Allen, D. J. S131 Asi, I. M. 369

Balasubramaniam, A. S. 131 Banks, D. $31 Barker, M. $75 Baxter, K. M. S115 Beardow, A. P. 349 Beattie, A. G. 303 Bell, F. G. 287, 317 Blackwell, I. M. S 151, S 163 Bloomfield, J. P. S 131, S 143 Brainard, J. S. 179 Brewerton, L. J. S 131

Chandler, R. J. 5 Charalambous, A. N. S 115 Choal, V. 53 Clark, L. $93 Cooper, A. H. 83 Cotecchia, F. 5 Coxon, P. 143 Cragg, D. J. 277

Davey, J. C. 83 Davies, C. $31 Davies, W. $31 de Graaf, P. J. H. 317 Dearman, W. R. 267 Dobaissi, H. H. 363 Doff, D. H. 143

EI-Naggar, Z. R. 369 Elliot, T. $39 Emerick, K. 201

Farrell, E. R. 143 Ferris, J. K. 83 Fookes, P. G. 105 Forster, A. 1

Gahir, J. S. 105 Gale, J. E. S 17 Geological Society Engineering Group Working Party

207 Gourley, G. S. 195

Harris, G. M. 349 Haskins, D. R. 287, 317 Hazell, J. R. T. $75 Hearn, G. J. 47 Hencher, S. R. 253, 313

Hiscock, K. M. 179 Howsam, P. $151, $163 Husein (Malkawi), A. I. 75

Indraratna, B. 131 Ingman, J. 277

James, A. N. 393

Kazi, A. 37 Khan, M. J. 131

Lee, S. S1 Liang, R. Y. 75 Little, A. L. 393 Lovett, A. A. 179 Low, B. K. 53 Lucas, H. C. $51

Mahmood, H. R. $63 McNicholl, D. P. 253 Monkhouse, R. A. 171 Moon, V. G. 303 Mottershead, D. N. 333 Murdoch, L. C. 23 Murphy, W. 61

Nathanail, C. P. 381 Nazhat, Y. N. 363

O'Shea, M. J. S115 Olsson, O. S17 Orli6, B. 385

Page, D. P. 97 Parfitt, J. P. 179 Patterson, D. A. 83 Price, D. G. 243 Pried'homme, L. 143 Pye, K. 333

Robins, N. S. 163 Robinson, V. K. $51 Rosenbaum, M. S. 381 R6singh, J. W. 385

Sabtan, A. 37 Schreiner, H. D. 195 Spears, D. A. S1 Sun, J. 53

Twigg, D. R. $63

Walker, M. J. S 151, S 163 Williams, A. T. S143

Younger, P. L. $39, $101

Zhao, J. 53 Zhou, Y. 53

The Quarterly Journal of Engineering Geology

1995. Vol. 28

Scientific Editor: J. C. Cripps Assistant Scientific Editors: K. M. Baxter, K. D. Privett

Editorial Board: D. J. Allen, K. Atkinson, S. P. Bentley, J. H. Black, C. H. Bland, G. P. Jones, M. C. Matthews, P. Styles, M. E. Woodbridge

Published by

The Geological Society

Burlington House, Piccadilly, London W1V 0JU, UK

© 1995 The Geological Society

We wish to thank the following people for their assistance with the reviewing of papers submitted to QJEG during the past year.

R. Allington L. Clark I .E . Higginbottom D. Price W. F. Anderson A. Cobb C.C. Hird M. Price J. H. Atkinson J .M. Coulthard J. Houston G.M. Reeves S. W. C. Au M.G. Culshaw A .F . Howland M.S. Rosenbaum K. Ball R . A . Downing B. Indraratna R. Sage D. Banks S. Dumpleton A .N . James S.K. Sarma J. A. Barker M.K. Edworthy D.P . Jefferson P.T. Sherwood M. E. Barton P .G. Fookes P. Kearey I. Sims J. H. Black P. Grainger S. Longstaff J. Summers R. Brassington J.S. Griffiths I .M. Marychurch E. Valentine E. Bromhead M. Grout P. McDowell J .J . van Wonderen D. Buckley A. Hansen T. Mellors S. Walthall J. Bullas G.J . Hearn R. Moore B. Watkins P. Carter S.R. Hencher D . R . Norbury G. West A. Charalambous R. Herbert K.J . Northmore

Contents of Volume 28

Part 1 February 1995

A. Forster: Photographic Feature: Active ground fissures in Xi'an, China . . . . . . . . . . . . . . . . . . . . .

F. Cotecchia & R. J. Chandler: Geotechnical properties of the Pleistocene clays of the Pappadai Valley, Taranto, Italy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

L. C. Murdoch: Forms of hydraulic fractures during a field test in overconsolidated glacial drift . . . .

A. Sabtan, M. A1-Saify & A. Kazi: Moisture retention characteristics of coastal sabkhas . . . . . . . . . .

G. J. Hearn: Landslide and erosion hazard mapping at Ok Tedi copper mine, Papua New G u i n e a . . .

W. Murphy: The geomorphological controls on seismically triggered landslides during the 1908 Straits of Messina earthquake, Southern Italy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A. I. Husein (Malkawi), A. S. A1-Homoud & R. Y. Liang: Seismic hazard mapping of Jordan . . . . . .

D. A. Patterson, J. C. Davey, A. H. Cooper & J. K. Ferris: The investigation of dissolution subsidence incorporating microgravity geophysics at Ripon, Yorkshire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

23

37

47

61

75

83

95

Supplement 1 February 1995

S. Lee & D. A. Spears: The long-term weathering of PFA and implications for groundwater pollution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O. Olsson & J. E. Gale: Site assessment and characterization for high-level nuclear waste disposal: results from the Stripa Project, Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D. Banks, C. Davies & W. Davies: The Chalk as a karstic aquifer: evidence from a tracer test at Stanford Dingley, Berkshire, UK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P. L. Younger & T. Elliot: Chalk fracture system characteristics: implications for flow and solute transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H. C. Lucas & V. K. Robinson: Modelling of rising groundwater levels in the Chalk aquifer of the London Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H. R. Mahmood & D. R. Twigg: Statistical analysis of water table variations in Bahrain . . . . . . . . . .

J. R. T. Hazell & M. Barker: Evaluation of alluvial aquifers for small-scale irrigation in part of the southern Sahel, West Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

S1

S17

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$39

$51

$63

$75

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iv CONTENTS OF VOLUME 28

P a r t 2 May 1995

D. P. Page: Photographic Feature: Jubilee Line Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P. G. Fookes & J. S. Gahir: Engineering performance of some coarse-grained arid soils in the Libyan Fezzan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B. Indraratna, A. S. Balasubramaniam & M. J. Khan: Effect of fly ash with lime and cement on the behaviour of a soft clay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

E. R. Farrell, P. Coxon, D. H. Doff & L. Pried'homme: The genesis of the brown boulder clay of Dublin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J. Zhao, Y. Zhou, J. Sun, B. K. Low & V. Choa: Engineering Geology of the Bukit Timah Granite for cavern construction in Singapore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

N. S. Robins: Groundwater in Scotland and Northern Ireland: similarities and differences . . . . . . . . .

R. A. Monkhouse: Prediction of borehole yield in the confined Chalk of the London Basin . . . . . . . .

K. M. Hiscock, A. A. Lovett, J. S. Brainard & J. P. Parfitt: Groundwater vulnerability assessment: two case studies using GIS methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H. D. Schreiner & G. S. Gourley: Technical Note: Description of moisture content in soil profiling . .

Editor's Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Book review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Part 3 August 1995

K. Emerick: Photographic Feature: The survey and recording of historic monuments . . . . . . . . . . . . .

Geological Society Engineering Group Working Party Report: The description and classification of weathered rocks for engineering purposes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D. G. Price: Weathering and weathering processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

S. R. Hencher & D. P. McNicholl: Engineering in weathered rock . . . . . . . . . . . . . . . . . . . . . . . . . .

W. R. Dearman: Description and classification of weathered rocks for engineering purposes: the background to the BS5930:1981 proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D. J. Cragg & J. Ingman: Rock weathering descriptions: current difficulties . . . . . . . . . . . . . . . . . . . .

D. R. Haskins & F. G. Bell: Drakensberg Basalts: their alteration, breakdown and durability . . . . . . .

V. G. Moon & A. G. Beattie: Textural and microstructural influences on the durability of Waikato Coal Measures mudrocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

201

207

243

253

267

277

287

303

CONTENTS OF VOLUME 28 v

Part 4 November 1995

S. R. Hencher & I. A. Acar: Photographic Feature: The Erzincan Earthquake, 13 March 1992 . . . . . .

F. G. Bell, P. J. H. de Graaf & D. R. Haskins: A geotechnical overview of the Lesotho Highlands Water Project, with emphasis on Phase IA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

K. Pye & D. N. Mottershead: Honeycomb weathering of Carboniferous sandstone in a sea wall at Weston-super-Mare, UK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G. M. Harris & A. P. Beardow: The destruction of Sodom and Gomorrah: a geotechnical perspective

R. R. A1-Omari, Y. N. Nazhat & H. H. Dobaissi: Effect of stiffness and amount of reinforcement on strength of sand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O. S. B. A1-Amoudi, I. M. Asi & Z. R. E1-Naggar: Stabilization of an arid, saline sabhka soil using additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. P. Nathanail & M. S. Rosenbaum: The misclassification matrix: a tool for validating geotechnical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B. Orli6 & J.W. Rrsingh: Three-dimensional geomodelling for offshore aggregate resources assessment

A.N. James & A. L. Little: Discussion on 'Moisture retention characteristics of coastal sabkhas' by A. Sabtan, M. A1-Saify & A. Kazi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

313

317

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363

369

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Supplement 2 November 1995

L. Clark: Hydrocarbon pollution control and remediation of groundwater: a brief review . . . . . . . . . .

P. L. Younger: Hydrogeochemistry of minewaters flowing from abandoned coal workings in County Durham . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M. J. O'Shea, K. M. Baxter & A. N. Charalambous: The hydrogeology of the Enfield-Haringey artificial recharge scheme, north London . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J. P. Bloomfield, L. J. Brewerton & D. J. Allen: Regional trends in matrix porosity and bulk density of the Chalk of England . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J. P. Bloomfield & A. T. Williams: An empirical liquid permeability-gas permeability correlation for use in aquifer properties studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I. M. Blackwell, P. Howsam & M. J. Walker: Borehole performance in alluvial aquifers: particulate damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I. M. Blackwell, P. Howsam & M. J. Walker: Permeability impairment around boreholes in micaceous aquifers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$93

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