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LINGKUNGAN PENGENDAPAN SEDIMEN 1.CONTINENTAL / DARAT 2.COASTAL / TRANSISI 3.MARINE / LAUT
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4692451 Lingkungan Pengendapan Sed Kul Ali

Apr 12, 2015

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Page 1: 4692451 Lingkungan Pengendapan Sed Kul Ali

LINGKUNGAN PENGENDAPANSEDIMEN

1. CONTINENTAL / DARAT

2. COASTAL / TRANSISI

3. MARINE / LAUT

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DARAT

TRANSISI

LAUT

LINGKUNGAN PENGENDAPAN

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DARAT

• Aluvial Fan / kipas darat

• Lacustrin / danau

• Eolian / angin

• Fluvial / sungai

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Lake

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Aluvial fan

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Fluvialtil

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Fluvialtil

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TRANSISIONAL

• Pantai / Shore

• Estuaria

• Delta

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Pantai & Estuaria

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Transisional

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Deltaik

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MARINE

• Shelf / Neritik

• Slope / Batial

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CONTINENTAL SEDIMENTARY ENVIRONMENTS Copyright 1998 Pamela J . W. Gore

ALLUVIAL FAN FLUVIAL LACUSTRINE DESERT (DUNES) PALUDAL

Rock Type Breccia, conglomerate, arkose

Conglomerate, sandstone, siltstone, shale

Siltstone, shale, limestone, or evaporites (gypsum)

Quartz arenite (sandstone) or gypsum

Peat, coal, black shale, siltstone

Composition Terrigenous Terrigenous Terrigenous, carbonate, or evaporite

Terrigenous or evaporite

Terrigenous

Color Brown or red Brown or red Black, brown, gray, green Yellow, red, tan, white

Black, gray, or brown

Grain Size Clay to gravel Clay to gravel (Fining upward)

Clay to silt or sand (Coarsening upward)

Sand Clay to silt

Grain Shape Angular Rounded to angular

--- Rounded ---

Sorting Poor Variable Variable Good Variable

Inorganic Sedimentary Structures

Cross-bedding and graded bedding

Asymmetrical ripples, cross-bedding, graded bedding, tool marks

Symmetrical ripples, lamination, cross-bedding, graded bedding, mudcracks, raindrop prints

Cross-bedding Laminated to massive

Organic or Biogenic Sedimentary Structures

--- Tracks, trails,burrows

Tracks, trails, burrows, rare stromatolites

Tracks, trails Root marks, burrows

Fossils --- Rare freshwater shells, bones, plant fragments

Freshwater shells, fish, bones, plant fragments

--- Plant fossils, rare freshwater shells, bones, fish

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TRANSITIONAL SEDIMENTARY ENVIRONMENTS Copyright 1998 Pamela J . W. Gore

DELTA BARRIER BEACH LAGOON TIDAL FLAT

Rock Type Sandstone, siltstone, shale, coal

Quartz arenite, coquina Siltstone, shale, limestone, oolitic limestone or gypsum

Siltstone, shale, calcilutite, dolostone or gypsum

Composition Terrigenous Terrigenous or carbonate

Terrigenous, carbonate, or evaporite

Terrigenous, carbonate, or evaporite

Color Brown, black, gray, green, red

White to tan Dark gray to black Gray, brown, tan

Grain Size Clay to sand (Coarsening upward

Sand Clay to silt Clay to silt

Grain Shape --- Rounded to angular --- ---

Sorting Poor Good Poor Variable

Inorganic Sedimentary Structures

Cross-bedding, graded bedding

Cross-bedding, symmetrical ripples

Lamination, ripples, cross-bedding

Lamination, mudcracks, ripples, cross-bedding

Organic or Biogenic Sedimentary Structures

Trails, burrows Tracks, trails, burrows Trails, burrows Stromatolites, trails, tracks, burrows

Fossils Plant fragments, shells Marine shells Marine shells Marine shells

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MARINE SEDIMENTARY ENVIRONMENTS Copyright 1998 Pamela J . W. Gore

REEF CONTINENTAL SHELF

CONTINENTAL SLOPE AND RISE

ABYSSAL PLAIN

Rock Type Fossiliferous limestone

Sandstone, shale, siltstone, fossiliferous limestone, oolitic limestone

Litharenite, siltstone, and shale (or limestone)

Shale, chert, micrite, chalk, diatomite

Composition Carbonate Terrigenous or carbonate

Terrigenous or carbonate Terrigenous or carbonate

Color Gray to white Gray to brown Gray, green, brown Black, white red

Grain Size Variable, frameworks, few to no grains

Clay to sand Clay to sand Clay

Grain Shape --- --- --- ---

Sorting --- Poor to good Poor Good

Inorganic Sedimentary Structures

--- Lamination, cross-bedding

Graded bedding, cross-bedding, lamination, flute marks, tool marks (turbidites)

Lamination

Organic or Biogenic Sedimentary Structures

--- Trails, burrows Trails, burrows Trails, burrows

Fossils Corals, marine shells

Marine shells Marine shells, rare plant fragments Marine shells (mostly microscopic)

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Lintasan Korelasi Sumur

1

3

2

Latihan 2 : Korelasi Stratigrafi

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Latihan 2 : Korelasi Stratigrafi

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Latihan 2 : Korelasi Stratigrafi

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Latihan 2 : Korelasi Stratigrafi

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Latihan 2 : Korelasi Stratigrafi

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Latihan 1 : Interpretasi Log

1

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Latihan 1 : Interpretasi Log

2

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Latihan 1 : Interpretasi Log

3

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