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Airbus Limitations > Geoscience Test Vocab 9/29/15 > Flashcards

Geoscience Test Vocab 9/29/15 Flashcards

1
Q

Porphyry

A

A rock consisting of LARGE crystals called “PHENOCRYSTS”😡

EMBEDDED IN A MASS OF FINE MINERAL GRAINS

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2
Q

LITHIFICATION

A

The process of converting sediments into coherent, solid rock. Formed by compaction and cementation

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3
Q

Cross Bedding

A

Layers of sediment lying at an angle to the plane IN WHICH SEDIMENT LAYERS ARE NORMALLY DEPOSITED

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4
Q

Graded Bedding

A

A layer of sediments in which the particle size changes gradually FROM LARGE ON THE BOTTOM TO SMALL ON THE TOP

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5
Q

Clastic Sediment

A

Rock or mineral fragments formed by the breakdown of ROCK DUE TO weathering

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6
Q

Igneous ROCK

A

Formed by cooling and crystallization of Molten minerals (MAGMA or LAVA)

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7
Q

Sedimentary ROCK

A

Rock formed by the LITHIFICATION of sediments

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8
Q

Metamorphic

A

Rocks that form as a result of physical and chemical changes in existing Rock

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9
Q

Sediment

A

Solid particles that have been transported and then deposited by agents of erosion

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10
Q

Magma

A

Molten rock beneath the Earth’s crust (surface)

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11
Q

Lava

A

Molten rock on the earths surface

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12
Q

Texture

A

The size shape and arrangement of mineral crystals or grains in a rock

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13
Q

Mineral composition

A

The minerals present in a rock

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14
Q

Intrusive

Intrusive igneous rock:

A

Plutonic magma below ground

A rock formed by the slow cooling of magma within the earth

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15
Q

Extrusive

Extrusive igneous rock:

A

Above ground quick cooling

A rock formed by the rapid cooling of lava at the surface of the earth

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16
Q

Parent rock

A

The original rock

17
Q

Contact metamorphosis

A

Changes in rock that result from extreme heat produced by contact with magma or lava

18
Q

VESICLES

A

A rock texture characterized by cavities formed by gas bubbles escaping from lava ask it cools and solidifies

19
Q

Felsic

A

FELSIC== rocks rich in the minerals feldspar and silica (Quartz)

Silicon and aluminum, thick lava, continental crust

20
Q

MAFIC

A

Magnesium + Iron, thin lava, dark color, high density, oceanic crust.

21
Q

Cementations

A

The binding together of sediment particles

22
Q

Compaction

A

The reduction in volume or thickness of a sediment layer due to pressure

23
Q

Organic sediment

A

Particles produced by living organisms

24
Q

Chemical sediment

A

Particles that crystallize out of solution

25
Q

Metamorphism

A

Rocks that change the physical and chemical properties of existing rock

26
Q

Clastic sediment:

A

Rock or mineral fragments formed by the breakdown of weathering

27
Q

Contact metamorphosis

A

Changes in rock that result from extreme heat PRODUCED by CONTACT with magma or lava.

Airbus Limitations (10 decks)

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