chapter 12 Flashcards

1
Q

granite

A

(intrusive, igneous rock)

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2
Q

gold nugget

A

naturally occurring gold, 85%-95%, come in all size

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3
Q

how are deposits are classified as

A

primary (rock), placer(river), laterite (soil)

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4
Q

lose gold deposits

A

usually hosted in igneous rock, associated with plate collision

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5
Q

placer gold deposit

A

sourced from the erosion of other gold deposits

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6
Q

glacial erratics

A

pieces of rock that differs from the size and type of rock native to the area in which it rests

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7
Q

nunataks

A

mountain peaks that projected above the glaciers and were not overridden by ice

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8
Q

roches moutonees

A

have a smooth, rounded, polished side

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9
Q

batholith

A

large area of exposed granite

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10
Q

continental glaciers

A

repeatedly advanced and retreated over vast areas of northern Europe and northern america

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11
Q

valley or alpine glaciers

A

confined to a valley (almost always a formed stream valley). flows from higher to lower elevations

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12
Q

what tectonic setting was Yosemite national park created in?

A

convergent

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