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20 Cards in this Set

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Spherical grain without crystalline structure
Peloid
pieces of material, ooids, particles,partially cemented together
aggregate grains
type of aggregate grain that resembles a lump of grapes
grape stones
type of aggregate grain which is a lump of carbonate containing more matrix than grape stones
lump
microcrystalline calcite/micrite
calcium carbonate mud
crystals that grow in between the carbonate grains
sparry calcite
2 classification types for carbonate rocks
Folk's and Dunam's
Classification for carbonatge rock that looks at the relative abundance of 3 different constituents. Does it have carbonate grains, sparry calcite or micrite?
Folk's classification
Classification for carbonate rocks that grain and mud supported rocks then divides them by grain size.
dunam's classification
rock that is composed completely of shelf hatch.
coquina
composed almost entirely of shells and micro-forms
chalk
a sudden appearence of Aragonite in the ocean
Whitings
The depth in the ocean where carbonate can no longer precipitate but only dissolves
Carbonate Compensation Depth
microcrystaline quartz with radiating fibers
Calcidine
elongatge grains larger than 20 microns
Mega-Quartz
microcrystaline algae
diatoms
marine planktonic protozoans
radialarians
spicules of invertebrates
siliceous spicules
non-rich, non-cherty, iron-rich mostly oolitic rocks
Iron stone
well-banded, cherty, iron-rich rocks
Iron formation