EARTH121 Lecture Notes - Lecture 3: Lithification, Diatom, Diagenesis
1 Jun 2016
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The assemblage of minerals bound together naturally occurring. Solid organic material (ex. granite may be composed of these minerals; mica, feldspar, quartz. Composed of minerals which are composed of earth"s elements. Is a fossil? (mineralized bone) yes due to the process of mineralization. Particles of fragments of rocks or minerals. Particles in the roundness of the rock. *wind and water help with the sorted material and well-rounded material: biogenic chemical organic calcareous created by foraminifera, diatom, chemical. *ice, water, wind and gravity -> keys contributors to erosion. Deposition - the accumulation of sediment released from the transport system (settle down, precipitate, organism) ie. dead sediment that falls to the bottom of the ocean etc. Diagenesis compacting, heating and cementation of grains ending in lithification (rock formation) Weathering does not transport materials, it generates the raw materials for transport by agents of wind, water, ice and gravity.
