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GEOS-101 > Metamorphic Rocks > Flashcards

Metamorphic Rocks Flashcards

1
Q

Change in shape in which any rock type can be cooked by changes in pressure and temperature

A

Metamorphism

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2
Q

Minerals that form at the surface…

A

Change the most

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3
Q

This messages how “cooked” the rock got

A

Metamorphic Grade

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4
Q

Low grade =

A

Low P&T

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5
Q

Medium grade =

A

Moderate P&T

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6
Q

High-grade =

A

Very high P&T

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7
Q

Sedimentary Parent rocks:

A

Shale
Sandstone
Limestone
Peat

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8
Q

Sedimentary Parent rock: SHALE

A

Unstable (wet) clay)

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9
Q

Sedimentary Parent rock: SANDSTONE

A

Stable quartz

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10
Q

Sedimentary Parent rock: LIMESTONE

A

Stable calcite

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11
Q

Sedimentary Parent rock: PEAT

A

Unstable organics

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12
Q

The Shale Family: Minerals

Low grade:

A

Mica: Chlorite

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13
Q

The Shale Family: Minerals

Medium to high-grade

A

Feldspar: kyanite, and garnet

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14
Q

The Shale Family: low grade

A very low grade, clay, and mica

A

Slate

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15
Q

The Shale Family: Low grade

Low-grade small mica crystals

A

Phyllite

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16
Q

The Shale Family: High-grade

Medium grade large mica crystals, garnet, and feldspar

A

Schist

17
Q

The Shale Family: High Grade

High-grade, feldspar, and garnet

A

Gneiss

18
Q

The Shale Family: High Grade

Partly melted

A

Migmatite

19
Q

The Sandstone Family:

A

Sandstone (rounded)
Quartzite (interlocking)
(Both pure quartz so looks the same just different texture)

20
Q

The Limestone Family:

A

Limestone
Marble
(Both pure calcite but different texture)
Shells disappear

21
Q

The Peat Family: Low Grade

Wet organic matter parent

A

Peat

22
Q

The Peat Family: Low Grade

Low grade, soft brown coal

A

Lignite

23
Q

The Peat Family: Low grade

Low grade petroleum

A

Oil & Gas

24
Q

The Peal Family: High Grade

Medium-grade, oily-looking

A

Bituminous Coal

25
Q

The Peat Family: High Grade

High grade very shiny

A

Anthracite

26
Q

The Peat Family: High Grade

Pure carbon

A

Graphite

GEOS-101 (36 decks)

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