DIAGENESIS Flashcards

1
Q

occurs in the form of syntaxial quartz overgrowths in which the silica that precipitates from pore solutions that initially nucleates on a pre-existing detrital quartz grain.

A

SILICA MINERALS

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2
Q

most abundant type of silica cement

A

QUARTZ

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3
Q

Most abundant in sandstones and gravelstones

A

CARBONATE MINERALS

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4
Q

most abundant carbonate mineral cement

A

CALCITE

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5
Q

Third most common cementing agents

A

IRON OXIDES & HYRDOXIDES

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6
Q

chief iron oxide and hydroxide cements

A

Hematite, goethite, and limonite

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7
Q

Occurs in feldspar-rich detrital sedimentary rocks as arkosic sandstones and gravelstones

A

FELDSPARS

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8
Q

Clay mineral stabilities strongly controlled by temperature and pH

A

CLAY MINERALS

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9
Q

shallow diagenesis that occurs shortly after burial

A

EODIAGENESIS

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10
Q

deeper diagenesis

A

MESODIAGENESIS

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11
Q

shallow diagenesis that occurs as sedimentary rocks approach the surface due to erosion

A

TELODIAGENESIS

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