Science Quiz / Metamorphic & Sedimentary Rock Terms

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Can you name the Metamorphic rock terms?

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exfoliation, frost acation, abrasion
mineral bounded by its own faces
porosity developed during diagenesis
correlates to depth of burial, tensions, compression or shear
small scale effect of metasomatism
a process in which pressure is concentrated at the point of contact between 2 grains, causing the contact area to dissolve and allowing for subsequent migration of ions or molecule
3rd weathering method, hydration etc.
a general summary of a particular depositional system, involving many individual examples from recent sediments and ancient 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
increase of temperature with depth
broken rock and mineral grains
formation and growth of new minerals, most common, same as diagenesis but at higher temperatures
caused mainly by heat
set of processes that produce textural and mineralogical changes between diagenesis and melting
structures that prevade rock
arenite with >50% lithic rock fragments
rocks that have undergone a change in form
geographic area where sediments are/have accumulated
porosity developed developed when seiment is deposited
type of sandstone with matrix minerals comprising 15% or less of the rock
affect large volume of rocks
few, large grains that occur when nucleation is inhibited
platy and acicular minerals intergrown in a nonfoliated, interlocking and locally radiating manner
controls the kinds of materials that will be available as sediment, the source area from which sediment is derived
crystal that gets its outline from neighbouring crystals
type of sandstone characterized by a matrix of between 15 and 75%
pre-metamorphic rock
structures or minerals from parents rock that did not undergo metamorphosis when surrounding rock did
visible on hand sample scale
all changes undergone by a sediment after its initial deposition, exclusive of weathering and metamorphism
the finer-grained material that occurs between the coarser grains in a rock
preferred linear alignments of elements such as minerals, bundles of microfolds, striations or grooves, or intersections of 2 planar features
an indication of the efficiency of the transport medium, it is evaluated on the amount of matrix and the roundness & sorting of clasts
a measure of how well fluid will flow through a rock
very closely spaced alignment of minerals produced by directional stress
affects small volume of rocks
neocrystallization and recrystallization as temperature and pressure increase, typically during burial
moss growth, tree roots
arenite with > 50% feldpar
a sedimentary rock dominated by particles of less than 0.004mm in diameter, lacking in laminations and >75% matrix
pressure is main agent
results from radioactivity and magma emplacement
a special type of foliation where the planar features are closely spaced and regular, imparting a splitting property to rocks
chemically precipitated material that fills the spaces between framework grains in sedimentary rocks
crushing and breaking of rocks
reorganization and movement of grain boundaries, most obvious in monomineralic rocks
mainly this section scale, involve grain to grain relationships
metamorphism dominated by chemical changes
caused mainly by deviatoric stress
neo & recrystallization as temperature and pressure decrease, typically during uplift or exhumation
grain boundaries do not equal crystal faces
most commonly H2O or CO2, induce changes in rock, alter mineralogy
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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