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Petrolo-G! > Detriral Sedrock > Flashcards

Detriral Sedrock Flashcards

1
Q

Grabau name of gravelstone

A

Rudite

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2
Q

Grabau name of sandstone

A

Arenite

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3
Q

Grabau name of mudrock

A

Lautite

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4
Q

Sedimentary rocks made up of gravel-sized sediments.

A

Gravelstone

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5
Q

Gravelstones that are
made up of rounded sediments.

A

Conglomerate

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6
Q

Gravelstones that are made up of angular sediments.

A

Breccia

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7
Q

Brecia is also called as

A

Rudite

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8
Q

Gravelstones with an interior source, eroding from the same source

A

Intraformational

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9
Q

Gravelstones with composition derived outside of depositional basin,

A

Extraformational

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10
Q

Clast-
supported conglomerates.

A

Orthoclonglomerate

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11
Q

Matrix-
supported conglomerates.

A

Paraclonglomerate

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12
Q

Describes gravelstones with more than 90% of the framework clasts consisting of a single or few resistant rocks and/or minerals.

A

Oligomict

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13
Q

Describes
gravelstones with clasts of
different compositions that are PRONE to weathering and erosion.

A

petromict

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14
Q

Describes gravelstones with clasts composed
of single composition

A

Monomictic

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15
Q

Describes gravelstones with clasts
composed of about 2-4 different types of parent rocks.

A

Diamictic

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16
Q

Describes
gravelstones with clasts with numerous amounts of types of composition

A

Polymictic

17
Q

gravelstone composed of lithified colluvium deposited from mass wasting.

A

Diamictite

18
Q

Sedimentary rocks made up of sand-sized sediments.

A

Sandstone

19
Q

It is used to classify sandstone

A

Pettijohn Sandstone Classification.

20
Q

Sandstones with
significant amount of feldspars.

A

Arkose

21
Q

Sandstones with
significant amount of mud matrix.

A

Wacke

22
Q

An older, general term for matrix-rich sandstone.

A

Graywacke

23
Q

Sedimentary rocks made up of mud-sized sediments.

A

Siltstone

24
Q

Mudrocks that are made up of silt-sized sediments.

A

Lutite

25
Q

Mudrocks that are made up of clay-sized sediments.

A

Claystone

26
Q

A type of mudrock the shows distinct layering.

A

Shale

27
Q

Banding observed among mudrocks where they tend to break.

A

Fissility

28
Q

Smectite-rich
claystones that formed from the alteration of volcanic ash deposits from explosive eruptions.

A

Bentonite

Petrolo-G! (13 decks)

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