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