kuliah 1 pendahuluan, batuan sedimen
DESCRIPTION
GeologiTRANSCRIPT
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Batuan Sedimen / Endapan
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Siklus Batuan
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Kelimpahan dan sebaran batuan
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Relative Percentages of Sedimentary Rocks
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Pengertian Batuan Sedimen Sedimentary rocks are formed by the depositing of sediments
such as gravel, sand, mud or clay, organic material, or chemical precipitation of such as salt, also biological deposition, followed by compaction and chemical cementing of the grains into rock. This latter process is called lithification.
Agent of Transport Water Wind Ice
Types of Sedimentary Rocks Clastic Sedimentary Rocks Non Clastic Sedimentary Rocks (chemical and biological) Carbonate Sedimentary Rocks
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Depositional Environments (lingkungan pengendapan)
Marine Shallow marine Deep marine Reef
Shoreline Beach Barrier Island Lagoon Delta Tidal Flat
Continental Alluvial Fan Glacial Lacustrine Fluvial Eolian Lake
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Batuan Sedimen Klastik
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Batuan Sedimen Klastik
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Batuan Sedimen Klastik (2)
Major Clasts Specific Clasts Sizes
Boulder > 256 mm
Gravel Cobble 256 - 64mm
Pebble 64 - 4 mm
Granule 4 - 2 mm
Sand 2 - 1/16 mm
Mud Silt 1/16 - 1/256mm
Clay < 1/256mm
Wentworth's Clastic Scale
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Klasifikasi Batuan Sedimen Klastik (3)
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Batuan sedimen di lapangan
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Contoh Batuan Sedimen Klastik
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Contoh Batuan Sedimen dalam mikroskop polarisasi
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Batuan Sedimen Non-Klastik
Chemical Sedimentary Rocks Chert Rock Salt Rock Gypsum
Organic Sedimentary Rocks (Coal) Peat Lignite Bituminous Coal (Anthracite Coal)
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Coal
Flint
Chert
Batubara
Batubara
Batulempung
Batupasir
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Carbonate Sedimentary Rocks Limestone Ca (CO3)
Biogenic Limestones Fossiliferous Limestone Coquina Chalk
Chemical Oolitic Limestone Micrite (Lithographic Limestone)
Dolostones Mg,Ca (CO3)2 primary diagenetic Secondary diagenetic
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Carbonate Sedimentary Rocks
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Carbonat rock
Batugamping
Batunapal
Batugamping