Sedimentary Structures Flashcards

(14 cards)

1
Q

3 inorganic sedimentary structures

A

bed forms and surface markings

mudcracks

raindrop prints

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2
Q

features that form on the surface of a bed

A

bed forms

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3
Q

undulations on a sediment surface produced by wind and water

A

ripples

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4
Q

ripples that form in unidirectional erosional currents

A

assymmetrical ripples

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5
Q

ripples in waves or oscillating erosional currents

A

symmetrical ripples

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6
Q

polygonal pattern of cracks produced as mud dries

A

mudcracks

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7
Q

circular pits produced by raindrops

A

raindrop prints

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8
Q

3 internal bedding structures

A

stratification

graded bedding

cross stratification

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9
Q

layering in rock bodies

A

stratification

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10
Q

results when a turbidity current starts to slow down

A

graded bedding

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11
Q

inclined bedding structure

A

cross stratification

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12
Q

filling in of impressions by scouring

A

sole marks

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13
Q

produced by the filling in of objects dragging

A

tool marks

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14
Q

filled in scours of eddies

A

flute marks

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