Siliceous Flashcards

1
Q

Siliceous sedimentary rocks are formed through the accumulation of what siliceous skeletons

A

diatoms (phytoplankton) and radiolaria (zooplankton)

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2
Q

The accumulation of siliceous skeleton is called

A

Siliceous ooze

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3
Q

A non-clastic sedimentary rock made up of microcrystalline quartz.

A

Chert

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4
Q

The chert has what fracture

A

Conchoidal

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5
Q

Black chert

A

Flint

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6
Q

Red chert

A

Jasper

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7
Q

Green chert

A

Prase

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8
Q

Concentric chert

A

Chalcedony

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9
Q

Rocks with high
concentrations of phosphates.

A

Phosphorites

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10
Q

A calcium phosphate mineral.

A

Francolite

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11
Q

Fossilized feces of animals that is high in phosphates.

A

Coprolite

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