kuliah 1 pendahuluan, batuan sedimen
DESCRIPTION
GeologiTRANSCRIPT
Batuan Sedimen / Endapan
Siklus Batuan
Kelimpahan dan sebaran batuan
Relative Percentages of Sedimentary Rocks
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
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
Batuan Sedimen Klastik
Batuan Sedimen Klastik
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
Klasifikasi Batuan Sedimen Klastik (3)
Batuan sedimen di lapangan
Contoh Batuan Sedimen Klastik
Contoh Batuan Sedimen dalam mikroskop polarisasi
Batuan Sedimen Non-Klastik
Chemical Sedimentary Rocks Chert Rock Salt Rock Gypsum
Organic Sedimentary Rocks (Coal) Peat Lignite Bituminous Coal (Anthracite Coal)
Coal
Flint
Chert
Batubara
Batubara
Batulempung
Batupasir
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
Carbonate Sedimentary Rocks
Carbonat rock
Batugamping
Batunapal
Batugamping