Geologic Timeline Flashcards

1
Q

a method is used to arrange geological
events, and the rocks they leave behind, in a sequence.

A

Relative Dating

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2
Q

It is used to measure radioactive decay.

A

Absolute Dating

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3
Q

the matching process which has been an
important process in constructing geological timescales.

A

Correlation

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4
Q

small chunks of time that was organized into a timescale which describes the history of the Earth.

A

Epochs

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5
Q

a principle that states that natural geologic
processes were uniform in frequency and magnitude throughout time

A

Uniformitarianism

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6
Q

Primary basis to be an Index fossil,

A

has to contain distinct
morphological characteristics for easier identification

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7
Q

If you’re looking for places with the greatest sedimentary accumulation,

A

you should look on the shallower parts of the oceans as there is no denudation of loss of rock thickness

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8
Q

If scientists need to determine geologic time using fossils

A

they need to find sedimentary rocks as can take shape when the tiny, weathered fragments of stones are compacted and cemented together.

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9
Q

Isotopes decay

A

at a constant rate in radiometric dating.

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10
Q

The major reason for division or bedding plane in stratification

A

temporary ceasing of deposition occurs

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11
Q

The reason why scientists need to use different elements in determining the exact age range

A

is because each radioactive
element decays at a constant rate, which is unique to that
element.

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