EARTH 119 Chapter Notes - Chapter 7: Sedimentary Basin, Diagenesis, Lithosphere
10 Oct 2016
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Earth 119- chapter 7: pages of earth"s past: sedimentary rocks. Sedimentary rock: rock that forms either by the cementing together of fragments broken off preexisting rock or by the precipitation of mineral crystals out of water solutions at or near the earth"s surface. Clastic sedimentary rock: sedimentary rock consisting of cemented-together detritus derived from the weathering of preexisting rock. Biochemical sedimentary rock: sedimentary rock formed from material (such as shells) produced by living organisms. Organic sedimentary rock: sedimentary rock (such as coal) formed from carbon-rich relicts of organisms. Chemical sedimentary rock: sedimentary rocks made up of minerals that precipitate directly from water solution. Sandstone: coarse-grained sedimentary rock consisting almost entirely of quartz. Erosion: the grinding away and removal of earth"s surface material by moving water, air, or ice. Deposition: the process by which sediment settles out of a transporting medium. Lithification: the transformation of loose sediment into solid rock through compaction and cementation.
