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Sedimentary Rocks
Rocks, Structures, environment
Term | Definition |
---|---|
Clastic | sed rock made from clasts of other broken rocks |
Organic (Biochemical) | chemical rocks made from organic processes |
chemical | chemical rocks that form from precipitates! |
lithification | process in which unconsolidated sediments are coverted into solid rock |
cementation | process of minerals precipitating in pore spaces that "glues" the sediments together (silica, calcite, iron oxide) |
sediment | solid material that is moved and deposited in a new location. |
sorting | sediment can be arranged by its size. (well or poorly) |
graded bedding | sediment is deposited by its size (coarse on the bottom, upwards to fine on the top) |
environment of deposition | understanding the history of the sediment was deposited |
compaction | process in which sediments are squeeze by the overlying materials weight |
weathering | process of breaking down rock, soil, and minerals |
erosion | transportation of weathered material by ice, wind, water. |
cross-bedding | layers of sedimentary rocks that include inclined/tilted layers that occurred during their deposition |
clastic texture | description of a sed rock made from clasts of other broken rocks |
mud cracks | sedimentary structure formed from sediment that dries and contracts. |
ripple marks | sedimentary structures formed showing direction of air or water flow |
strata | layer of deposited sedimentary rock |
stratigraphy | studying of rock layers and their positioning |