strike slip basin sedimentation...strike slip basin sedimentation • subsidence often asymmetrical...

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Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land: alluvial fans along active marginal faults, passing into fluvial and lacustrine facies towards basin centre • volcanisum along extensional faults • evaporites in internal drainage basins in hot, arid climates (e.g. Dead Sea rift.) Oxford Brookes University Homepage

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Page 1: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

Strike Slip Basin Sedimentation

• subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies

• on land: alluvial fans along active marginal faults, passing into fluvial and lacustrine facies towards basin centre

• volcanisum along extensional faults

• evaporites in internal drainage basins in hot, arid climates (e.g. Dead Sea rift.)

Oxford Brookes University Homepage

Page 2: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

Non-Marine

Marine

Non-marine

Possible Source Rocks

Page 3: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

M

M1Flat Bay Anticline

Page 4: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

Anguille

Codroy

Page 5: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

M’

M

MAG DATA

Page 6: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

SR 96-3A

Page 7: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

NESW Line SR 96-3A

Page 8: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

Is the Cambro-Ordovician Platform present in this area?

Platform signatureAt

Port au Port

Poor data

qualitybut

suggestspresence

of platform

Page 9: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

S NNESW

?

Page 10: Strike Slip Basin Sedimentation...Strike Slip Basin Sedimentation • subsidence often asymmetrical resulting in rapid lateral changes in sediment thickness and facies • on land:

Mag data suggests presenceof thicker sediments over theSW part of the Flat Bay anticline