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Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ......

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ASX : ENR Footprints in the Great Sandy Desert UNCOVER Summit April 2014
Transcript
Page 1: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

ASX : ENR

Footprints in the Great Sandy Desert

UNCOVER Summit – April 2014

Page 2: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

2

GREENFIELDS EXPLORATION

Global

Continental

Project / Regional

Prospect

Page 3: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

3

INTRODUCTION

• Focus on greenfields, large scale metal discoveries

• Major land position in Proterozoic Yeneena sedimentary basin (1900km2)

• Surrounded by major mineral deposits (Au-Cu, Cu, U and Mn)

Yeneena Project

Page 4: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

4

HISTORICAL DISCOVERIES

Nifty - 1980

Kintyre - 1985

Telfer – 1972

Page 5: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

5

THE OPPORTUNITY

Page 6: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

6

CONTINENTAL-SCALE CONTEXT

Czarnota et al (2008)

Page 7: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

7

THE CENTRALIAN SUPERBASIN

Czarnota et al 2008; After Maidment 2006

Yeneena Basin

After O’Driscoll and Campbell, 1997

Tangadee Lineament

Page 8: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

8

REGIONAL TARGET SELECTION

Pilbara Craton

Page 9: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

9

Nifty

Telfer

Kintyre

REGIONAL TARGET SELECTION

Page 10: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

10

0

5

10

15

20

25

MT

Cu

(p

re m

ine

d r

eso

urc

es)

Paterson Province

Endowment 2.3MT Copper

Central Africa Copper Deposits

Endowment 170MT Copper

Mt Isa

WHY SEDIMENT HOSTED CU?

Deposit style produces giant orebodies Is Nifty the giant of the Paterson?

*includes basement hosted deposits

Page 11: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

11

CENTRAL AFRICAN COPPER

Nifty

Shales +/- sst and dolomite

Sandstone and minor siltstone, Shales and cb

Kintyre (U)

Metasediments and Gneiss

YENEENA

Page 12: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

12

GEOLOGICAL INTERP.

• Geological Domains – Geophysical characterisation of

geological units

– AEM KEY effective dataset: EM signatures of Coolbro Sst. vs Broadhurst vastly different

• Structural Framework – AEM CDIs

– Breaks and drag folding in conductive flat-lying shales in Broadhurst Fmn

• Integration with independent datasets – Gravity

– Magnetics

– GSWA Mapping

– EOH Geology

20km

20km

Broadhurst Formation

Coolbro Sandstone

Rudall Complex

Shelf Sequence

Tarcunyah Group 20km

20km

Broadhurst Formation

Coolbro Sandstone

Rudall Complex

Shelf Sequence

Tarcunyah Group

Page 13: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

13

TARGET GENERATION

Fishhook

• BM1-BM7 Copper-Cobalt Discovery

• +14km long mineralised trend

• BM7 now 6km x 3km anomaly

• BM2 Zinc (+Cu) Discovery

• 201m @ 0.6% Zn to EOH

• 0.7m @ 36% Zn

Page 14: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

14

PROSPECT DEFINITION

•Airborne EM (VTEM)

•Regolith Drilling (Aircore)

10km

•Historical Data Compilation

WB

•Structural / Geological Interpretation

Oxidised , resistive Sediments

Reduced, conductive Sediments

Page 15: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

15

LOTS OF AIRCORE DRILLING

Page 16: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

16

BM6 – BM1 – BM7 REGOLITH CU

10km

Page 17: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

17

BM1 - BM7 PROSPECTS

Mineral system 14km long and growing

Granted Aug 2012

Page 18: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

18

LONG SECTION BM6-BM1-BM7

Shallow drilling defines major new Copper-Cobalt mineral system

Antofagasta farming-in

Page 19: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

19

DIRECT DETECTION ?

•Partial Leach Geochemistry

•Ground EM

•Ground IP

•Detailed ground gravity

•Detailed Seismic

•AMT

Page 20: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

20

EPT1822 - 36m – Asurite in RC chips (Assays pending)

BM7 2013 SUMMARY

• Regolith anomaly 6km in strike and up to 3km in width

• Generated specific new primary copper sulphide targets

• Extraordinary copper oxide footprint with high grade copper in the primary zone

• System remains open to the south and south east

BM7 mineral system 3km

6km

Nifty Sulphide Deposit

(~1MT Cu Metal) at same scale

600m

35

0m

(refer ASX announcement 27 Nov 2013)

Page 21: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

21

BM7 SCHEMATIC SECTION A-A’

Diamond drill program has confirmed depth extensive copper sulphide mineralisation and established the high grade potential of BM7 system

Nifty Sulphide Deposit (~ same scale)

See Slide 8

Page 22: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

22

EXPLORATION LEARNINGS

• Extensive cover of between 1 to 15m

• Detailed VTEM defined broad area of subdued conductance and key structural intersections

• Shallow regolith drilling highlights areas of interest

• EM, IP, Gravity, Magnetics or Surface Geochemistry has not delivered direct detection of high grade mineralisation

• Broad spaced drilling to allow structural targeting and define lithogeochemical vectors to high grade copper sulphides.

Exploring the Yeneena for new copper systems

Page 23: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

23

REGIONAL COPPER TARGETS

• VTEM Survey completed

• Significant north-east trending structure that mirrors the BM1-BM7 copper system

• Shallow sand cover

• Minimal previous exploration – a handful of holes – anomalous in copper

Untested targets north of BM1-BM7

Electromagnetics - VTEM

14km

Page 24: Footprints in the Great Sandy Desert - Bewick.pdf · Footprints in the Great Sandy Desert ... Deposit style produces giant orebodies Is Nifty the giant of the Paterson? *includes

The End… …The Beginning


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