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GEOLOGI
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Sedimentary EnvironmentSedimentary Environment
Lingkungan Pengendapan
GLGL--2051/NUGROHO2051/NUGROHO
Sedimentary Environments•• ContinentalContinental
•• Alluvial fan, rivers/Alluvial fan, rivers/fluvialfluvial, lakes/, lakes/lacustrinelacustrine, , desert, etc.desert, etc.
•• Transitional Transitional –– coastal coastal -- along ocean shoresalong ocean shores•• Estuaries and DeltasEstuaries and Deltas•• BeachBeach•• Offshore islands Offshore islands •• LagoonsLagoons•• Etc.Etc.
•• MarineMarine•• Shallow marine environments (< 200m)Shallow marine environments (< 200m)•• Deep marine environments (beyond the Deep marine environments (beyond the
continental shelf)continental shelf)
Alluvial Fan Facies
Alluvial fans can basically be described as fanAlluvial fans can basically be described as fan shaped deposits that are fed by a shaped deposits that are fed by a channel emanating from a very narrow, steep valley in a region ochannel emanating from a very narrow, steep valley in a region of high f high
topographic relief.topographic relief. This high relief is often due to the fact that most alluvial faThis high relief is often due to the fact that most alluvial fans ns are found in association with regions of active faulting. are found in association with regions of active faulting.
Braided River Facies
Meandering River Facies
Barrier bar
Mangrove swamp
Estuaries
Tidal flat
Delta Facies
LAKE / LACUSTRINELAKE / LACUSTRINE
Deep MarineDeep Marine
Carbonate platforms