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Oceanography (Ch4)

Oceanography (Ch4) - Random notes I missed Catastrophism...

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Random notes I missed: Catastrophism Doctrine: Floods and disasters by supernatural forces formed the rocks and landforms seen on earth today. Uniformitarian's (theory of uniformity) James Hutton father of modern geology Geological processes slow and gradual rather than catastrophic Chapter Four Notes: Types of Deep Sea Sediments (based on sediment sources) Terrigenous: Derived from land (eroded clastic (bits and pieces of other rocks) material) (e.g sandstone, shale, red clay) Biogenic: formed from the remains of living organisms (e.g coral reef fragments, shells of single-celled plants and animals that live in surface waters) Two mains kinds of Oozes: Calcareous (CaCO3, tropical, eventually form things like limestone, shallow water, in high pressure and cold dissolves) Siliceous (Sio2, deep chert, deep water, doesn't dissolve under high pressure) Hydrogenous: Produced in seawater by chemical processes (e.g phosphorites, manganese nodules, salt deposits) Neritic Env (Shelf):sediments occurring on shelf Pelagic Env. (off-shelf): Sediments off the continental shelf
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