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Texture (SSS) Image Drawing Cement / Sedimentary en. and
components (LS) structure
Conglomerat Grain size: Silica Beach / channel fill
e coarse
Shape:
well rounded
Sorting:
poorly sorted



Breccia Grain size: Iron oxide Alluvial fan /
Coarse floodplain
Shape: (flooding)
angular
Sorting:
poorly sorted




Greywacke Grain size: Silica or clay…

Page 2

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Arkose Grain size: Silica Floodplain
medium ­ coarse dune bedding
Shape:
sub-angular
Sorting:
moderately sorted




Shale Grain Size: Clay particles Lakes/ deep sea
fine (cohesion) (low energy)
Shape: laminations
n/a
Sorting:
well sorted



Sandstone Grain size: Calcite, Iron oxide Deserts/ dune beds
(red or medium and silica (red sandstone)
cream)…

Page 3

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Oolitic Grain size: Ooliths- balls of Tropical beaches
limestone medium micrite cross bedding
Shape: (lime mud)
well rounded (CaCO3)
Sorting:
well sorted

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