Earth's History Review Sheet For Test 10/23/2014 Flashcards

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0
Q

Cast

A

Type of fossil that forms in the hollow space left from a mold.

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1
Q

Mold

A

Type of fossil that forms when an organism is buried and then dissolves in water.

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2
Q

Petrified Fossil

A

Type of fossil that forms when a mineral soaks into an organism turning it to stone

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3
Q

Index Fossil

A

Type of fossil that is widespread but only exists for a limited time span.

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4
Q

Carbon Film —————-

A

Type of fossil that preserves delicate details of organisms leaving behind a “stamp” of a fossil.

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5
Q

Trace Fossil

A

Type of fossil that is indirect evidence of life like burrows, tracks, feces, etc.

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6
Q

Preserved Remains

A

Type of fossil that forms when an organism is covered in ice, tar, or sap

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7
Q

Law of Superposition

A

States that each layer is older than the one above it and younger than the one below it

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8
Q

Relative Dating

—————

A

Method of putting things in order of when they happen

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9
Q

Inclusion

A

Pieces of rock that are contained whithin another rock

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10
Q

Disconformity

A

To rock layers are separated by an eroded surface

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11
Q

Uniformitarianism

A

Shows a surface that was eroded and then new layers formed on top

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12
Q

Correlation

A

Matches rocks of similar age in different locations

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13
Q

Nonconformity

A

Older metamorphic rock and younger sedimentary rock is separated by an erosional surface

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14
Q

Law of cross cutting relationships

A

States that when a fault cuts through or magma intrudes it is younger than the other rocks

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15
Q

Principle of original horizontally

A

Stats that layers of sediment are generally deposit in a horizontal pattern.

16
Q

Explain the Two Favorable Conditions for Fossils to Form.

A

The best way (favorable condition) for a fossil to form is for it to have hard parts like bones (not internal organs), and for it to have rapid burial by sediments so that animals/scavengers can’t get to it before it is preserved.