Post on 04-Jun-2018
transcript
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GEOL 751 Lecture 5: Shark Bay Carbonates
Professor Christopher George St. Clement Kendall
-
EWS 304kendall@sc.edu
777.2410
GEOL 751: Carbonate PetrologyUniversity of South Carolina
Spring 2005
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Shark Bay, Western Australia
-
Carbonates
Intertidal Subtidal Stromatolite
Heads, Ooids , Sea Grass BanksCarbonate Sills, Cement Prone
Shelves.
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Series Overview
Carbonate sediments
Hierarchies and Geometry of Carbonates
Bahamas sediments Florida sediments
Shark Bay
Ordovician of Kentucky and VirginiaMiocene of Mallorca etc
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
LocationOpen Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark
Bay
-Western
Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay
-Western
Australia
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Shark Bay
-Western
Australia
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Shark Bay
-Western
Australia
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Shark Bay
-Seagrass
Banks
-
Sills
-Hypersaline
Pools
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Shark Bay
-Geography
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Shark Bay - Western Australia
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Shark Bay
-Western
Australia
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Shark Bay
-Western
Australia
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Shark Bay
-Western
Australia
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Shark Bay
-
Western Australia
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Shark Bay
-
Western Australia
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Shark Bay
-
Western Australia
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Shark Bay
-Western
Australia
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Shark Bay-
Western
Australia
-
SpringTime
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Shark Bay - Western Australia
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Shark Bay - Western Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay - Western Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Blind Inlet
-
Shark Bay
-
Western Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
LocationOpen Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop
Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace
Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
Open Marine Sea Grass
Bank – Bioclastic Body
Lens like cross section
Updip Evaporite Tidal Flat
Tidal channel complex
down dip
Luxuriant grass supports
epiphytes building bank
7ft /year seaward into 30
ft water
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
Open Marine Sea Grass
Bank – Bioclastic Body
Lens like cross section
Updip Evaporite Tidal Flat
Tidal channel complex
down dip
Luxuriant grass supports
epiphytes building bank
7ft /year seaward into 30
ft water
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GEOL 751 Lecture 5: Shark Bay Carbonates
WooramelBank
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GEOL 751 Lecture 5: Shark Bay Carbonates
Freycinet Bank
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
Open Marine Sea Grass
Bank – Bioclastic Body
Lens like cross section
Updip Evaporite Tidal Flat
Tidal channel complex
down dip
Luxuriant grass supports
epiphytes building bank
7ft /year seaward into 30
ft water
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
Open Marine Sea Grass
Bank – Bioclastic Body
Lens like cross section
Updip Evaporite Tidal Flat
Tidal channel complex
down dip
Luxuriant grass supports
epiphytes building bank
7ft /year seaward into 30
ft water
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
Open Marine Sea Grass
Bank – Bioclastic Body
Lens like cross section
Updip Evaporite Tidal Flat
Tidal channel complex
down dip
Luxuriant grass supports
epiphytes building bank
7ft /year seaward into 30
ft water
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
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GEOL 751 Lecture 5: Shark Bay Carbonates
Gascoyne River Delta
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel River Delta
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank – Intertidal Flats
Wooramel Bank Shark Bay
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank – Shark Bay
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Wooramel Bank
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Wooramel Bank
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Wooramel Bank
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
W l B k
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
Wooramel Bank W Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank – W. Australia
W l B k
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GEOL 751 Lecture 5: Shark Bay Carbonates
Wooramel Bank
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
LocationOpen Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace
Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay
-Western
Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin
Pool
F Sill
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Faure Sill
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Faure Sill
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GEOL 751 Lecture 5: Shark Bay Carbonates
Faure Sill
Faure Sill
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Faure Sill
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay
-Western
Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Useless Loop
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
LocationOpen Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace
Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay
-
Western
Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Depuch Loop
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GEOL 751 Lecture 5: Shark Bay Carbonates
Depuch Loop
Depuch Loop
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GEOL 751 Lecture 5: Shark Bay Carbonates
Depuch Loop
Depuch Loop
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GEOL 751 Lecture 5: Shark Bay Carbonates
Depuch Loop
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
LocationOpen Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace
Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay
-Western
Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin
Pool
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin
Pool
H li P l
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
H li P l
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
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Hamlin Pool
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin Pool
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
LocationOpen Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace
Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin Pool
Hamlin Pool
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Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin Pool - Stromatolite Morphology
Hamlin Pool
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Hamlin Pool
Paul offman Photo
H li
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Hamlin
Pool
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Hamlin Pool
Paul offman Photo
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
Paul offman Photo
Hamlin Pool
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin Pool
Paul offman Photo
Hamlin Pool
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GEOL 751 Lecture 5: Shark Bay Carbonates
Hamlin Pool
Stromotolites are inclined seaward into breaking waves
Paul offman Photo
Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
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Hamlin Pool
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Hamlin Pool
Hamlin Pool
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Hamlin Pool
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Hamlin Pool
Hamlin Pool
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a oo
Pre-Cambrian – Great Slave Lake
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GEOL 751 Lecture 5: Shark Bay Carbonates Paul offman Photo
Pre-Cambrian – Great Slave Lake
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GEOL 751 Lecture 5: Shark Bay Carbonates Paul offman Photo
Pre
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GEOL 751 Lecture 5: Shark Bay Carbonates
Pre-
Cambrian –
Great Slave
Lake
Paul offman Photo
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GEOL 751 Lecture 5: Shark Bay Carbonates
Pre-Cambrian –
Great SlaveLake
Paul offman Photo
Lecture Outline
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Outline
Location
Open Marine Sea Grass Bank – Bioclastic Body
Carbonate Sills
Metahaline “Lagoon”: Useless Loop Hypersaline “Lagoon”: Depuch Loop
Hypersaline “Lagoon”: Hamlin Pool
Stromatolite Heads and Ooid Terrace
Lake McLeod: Below sea level -
Evaporite/carbonate factory
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod –
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod
–
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod –
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod –
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod
–
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod –
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod –
W. Australia
Lake McLeod
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod
– W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod
–
W. Australia
Lake McLeod
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GEOL 751 Lecture 5: Shark Bay Carbonates
–
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod –
W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod
– W. Australia
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod – W. Australia
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Lake McLeod – W. Australia
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Lake McLeod – W. Australia
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Lake McLeod – W. Australia
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Lake McLeod – W. Australia
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Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
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GEOL 751 Lecture 5: Shark Bay Carbonates
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod – W. Australia
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod – W. Australia
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
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GEOL 751 Lecture 5: Shark Bay Carbonates
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Lake McLeod
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GEOL 751 Lecture 5: Shark Bay Carbonates
–
W. Australia
The Entrance toHell
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lake McLeod – W. Australia
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GEOL 751 Lecture 5: Shark Bay Carbonates
Lecture Conclusions
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GEOL 751 Lecture 5: Shark Bay Carbonates
Shark Bay is an important analogue for ancient
carbonates Open marine carbonate bioclastic bank margins form
linear lens shaped continuous bodies along strike
Carbonate sill & hypersaline coastal terraces form box
shaped continuous linear bodies along strike
Metahaline cementation favors stromatolite heads, ooids,
intertidal capillary crusts, & cemented lagoon floors
Evaporite/Carbonate couplets may be the product of seasurface depression below a barrier margin that leaks
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End of the Lecture
Can it be lunchtime????