| Definition | Term |
|---|
| pressure is main agent | |
| very closely spaced alignment of minerals produced by directional stress | |
| crystal that gets its outline from neighbouring crystals | |
| affect large volume of rocks | |
| neo & recrystallization as temperature and pressure decrease, typically during uplift or exhumation | |
| a special type of foliation where the planar features are closely spaced and regular, imparting a splitting property to rocks | |
| an indication of the efficiency of the transport medium, it is evaluated on the amount of matrix and the roundness & sorting of clasts | |
| 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 | |
| crushing and breaking of rocks | |
| a measure of how well fluid will flow through a rock | |
| pre-metamorphic rock | |
| mineral bounded by its own faces | |
| exfoliation, frost acation, abrasion | |
| rocks that have undergone a change in form | |
| a sedimentary rock dominated by particles of less than 0.004mm in diameter, lacking in laminations and >75% matrix | |
| preferred linear alignments of elements such as minerals, bundles of microfolds, striations or grooves, or intersections of 2 planar features | |
| broken rock and mineral grains | |
| arenite with > 50% feldpar | |
| metamorphism dominated by chemical changes | |
| controls the kinds of materials that will be available as sediment, the source area from which sediment is derived | |
| formation and growth of new minerals, most common, same as diagenesis but at higher temperatures | |
| arenite with >50% lithic rock fragments | |
| visible on hand sample scale | |
| correlates to depth of burial, tensions, compression or shear | |
| neocrystallization and recrystallization as temperature and pressure increase, typically during burial | |
| a general summary of a particular depositional system, involving many individual examples from recent sediments and ancient rocks | |
| a size parameter used to describe the textures of clastic rocks by relating the variation in grain sizes within the rock, it affects porosity and permeability | |
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