Term
| framework grains (Part 1) |
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Definition
| capable of supporting lithostatic load |
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Term
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Definition
| generally not capable of supporting lithostatic load, collapse quickly with burial |
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Term
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Definition
| minerals or mineralloids precipitated in rock voids |
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Term
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Definition
| no set crystalline structure, ie obsidian, coal |
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Term
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Definition
| rock voids including fluids contained therein |
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Term
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Definition
| found in mudrocks, 100% saturated rock |
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Term
| icehouse/greenhouse(Part 1) |
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Definition
| overall global climate; ice=sustains polar ice caps |
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Term
| topographic relief (Part 2) |
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Definition
| difference of local elevation |
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Term
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Definition
| physical weathering where water seeps into rock voids and applied stress when frozen, can also apply to salt weathering with the growth of salt crystals |
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Term
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Definition
| physical weathering resulting from extreme temperature fluctuations daily (ie desert) |
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Term
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Definition
| physical weathering resulting from the rock elastic limit being exceeded, resulting in breakage (expanding too quickly) |
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Term
| organic activity (Part 2) |
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Definition
| physical weathering where root growth widens fractures over time |
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Term
Most: Stress Release
Organic Activity
Insolation
Freeze-Thaw
(2) |
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Definition
| Relative Importance of various physical weathering methods |
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Term
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Definition
| involves processes that chemically alter pre-existing rock |
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Term
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Definition
| rocks and minerals with inherent weaknesses or finer textures are more susceptible to weathering chemical reactions because of increased surface area |
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Term
| hydration and dehydration(2) |
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Definition
| a form of chemical weathering that involves the addition or removal of water |
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Term
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Definition
| a form of chemical weathering that involves the addition of hydrogen ions |
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Term
| oxidation and reduction (2) |
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Definition
| a form of chemical weathering that involves gaining and losing of electrons |
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Term
| Climate where oxidation and hydrolysis are important types of chemical weathering (2) |
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Definition
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Term
| Climate where oxidation and dehydration/hydration are important types of chemical weathering (2) |
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Definition
| alternating wet/dry climates (ie W. Oklahoma) |
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Term
| Climate where simple solution is an important types of chemical weathering (2) |
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Definition
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Term
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Definition
| formed by the result of the interaction between the geosphere, atmosphere and biosphere |
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Term
| texture attributes of a sedimentary rock (3) |
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Definition
| size, shape and roundness |
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Term
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Definition
| commonly used classification of sed grain size, log2 scale |
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Term
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Definition
| linear scale to classify grain size |
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Term
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Definition
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Term
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Definition
| grain shape that resembles a frisbee or plate |
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Term
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Definition
| grain shape that resembles a ball, or die |
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Term
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Definition
| grain shape that resembles a tootsie roll, or pencil |
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Term
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Definition
| grain shape that resembles an American football |
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Term
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Definition
| chart used to determine grain roundness |
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Term
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Definition
| can be related to current flow strength |
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Term
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Definition
| is controlled by inherited properties of preexisting materials, such as cleavage |
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Term
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Definition
| results from abrasion history and proximity to the source |
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Term
| hydraulic equivalence (3) |
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Definition
| explains how grains of varying size, shape and density can be deposited in the same place |
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Term
| monocrystalline quartz (3) |
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Definition
| single crystal unit, felsic, typically granites |
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Term
| polycrystalline quartz with straight boundaries (3) |
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Definition
| multiple crystal units with straight contacts, felsic |
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Term
| polycrystalline quartz with sutured boundaries (3) |
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Definition
| multiple crystal unites with sutured contacts, foliated metamorphic |
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Term
| quartz framework with abraded quartz overgrowth (3) |
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Definition
| quartz cement then also abraded, sedimentary |
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Term
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Definition
| minerals that make up less than 5% of the framework of clastic sed rocks |
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Term
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Definition
| higher density than quartz |
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