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1
Intro
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Classification of Marine Sediments
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Paleoceanography and Marine Sediments Paleoceanography - study of how
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Lithogenous Quartz and Wind Transport
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Grain Size One of the most important sediment properties Proportional to energy of transportation and deposition
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Texture and Environment Texture indicates environmental energy
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Biogenous Sediment Hard remains of once-living
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Calcium Carbonate in Biogenic Sediments Coccolithophores
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Distribution of Biogenous Sediments Depends on three
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Neritic Deposits Dominated by lithogenous sediment, may contain biogenous sediment · Carbonate Deposits
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Calcareous Ooze and the CCD Scarce calcareous ooze below 5000 meters (16,400 fot) in modern ocean
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Distribution of Modern Calcium Carbonate Sediments
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Hydrogenous Marine Sediments Minerals precipitate
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Manganese Nodules Fist sized lumps of manganese, iron and other metals
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Phosphates and Carbonates Phosphates - Phosphorus-bearing
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Metal Sulfides Metal sulfides Contain
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Evaporites Evaporites
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Cosmogenous Marine Sediments Macroscopic meteor debris
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Marine Sediment Mixtures Usualy mixture of different sediment types Typicaly one sediment type dominates in different areas of the Sea
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Pelagic and Neritic Sediment Distribution
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Worldwide Marine Sediment Thickness
Description:
Explore the fascinating world of marine sediments in this comprehensive 47-minute lecture on oceanography. Delve into the classification of marine sediments, their importance in paleoceanography, and the various types including lithogenous, biogenous, hydrogenous, and cosmogenous sediments. Learn about the significance of grain size, texture, and environmental factors in sediment formation and distribution. Discover the role of calcium carbonate in biogenic sediments, the concept of Carbonate Compensation Depth (CCD), and the global distribution of modern calcium carbonate sediments. Examine unique formations like manganese nodules, phosphates, and evaporites. Gain insights into the mixture of sediment types in different oceanic regions and understand the distinction between pelagic and neritic sediment distribution. Conclude with an overview of worldwide marine sediment thickness, providing a holistic understanding of the ocean floor's composition and its implications for Earth's geological history. Read more

Oceanography - Marine Sediments

Earth and Space Sciences X
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