| Definition | Term |
|---|
| affects small volume of rocks | |
| a body of rock characterized by a particular combination of lithology, physical and biologoical structures that are different from the bodies above, below and laterally adjacent | |
| a special type of foliation where the planar features are closely spaced and regular, imparting a splitting property to rocks | |
| arenite with > 50% feldpar | |
| platy and acicular minerals intergrown in a nonfoliated, interlocking and locally radiating manner | |
| preferred linear alignments of elements such as minerals, bundles of microfolds, striations or grooves, or intersections of 2 planar features | |
| increase of temperature with depth | |
| caused mainly by deviatoric stress | |
| a sedimentary rock dominated by particles of less than 0.004mm in diameter, lacking in laminations and >75% matrix | |
| formation and growth of new minerals, most common, same as diagenesis but at higher temperatures | |
| type of sandstone characterized by a matrix of between 15 and 75% | |
| chemically precipitated material that fills the spaces between framework grains in sedimentary rocks | |
| structures or minerals from parents rock that did not undergo metamorphosis when surrounding rock did | |
| mainly this section scale, involve grain to grain relationships | |
| porosity developed developed when seiment is deposited | |
| an indication of the efficiency of the transport medium, it is evaluated on the amount of matrix and the roundness & sorting of clasts | |
| porosity developed during diagenesis | |
| metamorphism dominated by chemical changes | |
| exfoliation, frost acation, abrasion | |
| very closely spaced alignment of minerals produced by directional stress | |
| few, large grains that occur when nucleation is inhibited | |
| broken rock and mineral grains | |
| crystal that gets its outline from neighbouring crystals | |
| moss growth, tree roots | |
| a general summary of a particular depositional system, involving many individual examples from recent sediments and ancient rocks | |
| caused mainly by heat | |
| pre-metamorphic rock | |
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