Oceanography

Sediment, a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of fluids such as wind, piddle supply, or ice, and/or by the force of gravity performing on the particle itself. Sediments argon most a lot transported by water (fluvial processes), wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though posit also often settles discover of slow-moving or standing water in lakes and oceanic dunes and loses are examples of aeolian transport and deposition. Glacial moraine deposits and gutter are ice-transported posits.

The 4 main types of alluviation Lithogenous = composed of fragments of preexisting rock material biogenous = composed of hard form of once-living organisms Hydrogenous = formed when dissolved materials build hold out of firmness of purpose (precipitate) Cosmogenous = derived from outer space Origin of lithogenous sediment Forms by: Weathering = looseness of exposed rock Transportation = movement of sediment depositary = settling and accumulation Lithogenous sediment composition Most lithogenous sediment is composed of quartz, which is: Abundant Chemically stable Durable Lithogenous sediment texture grain includes: Grain size Sorting rounding error Maturity Distribution of lithogenous sediment Lithogenous sediment occurs as: neriti c (nearshore) deposits Beaches! Continental shelves Turbidites Glacial-rafted debris Pelagic (deep ocean theme) deposits Abyssal trunk Origin of biogenous sediment Organisms that cook hard move die Material rains down on the ocean floor and accumulates as: Macroscopic shells, bones, teeth Microscopic tests (shells) If comprised of at...If you want to bring in a full essay, order it on our website: OrderCustomPaper.com

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