Despositional Sedimentary Environeme Flashcards

1
Q

part of the earth’s surface
which is physically, chemically, and biologically
distinct from adjacent areas

A

Depositional environment

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2
Q

Types of depositional environment

A

Terrestrial, marine and transitional

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3
Q

Process of deposition through rivers and
streams (confined bodies of water moving
downhill in channels).

A

Fluvial

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4
Q

Types of fluvial

A

Straight/braided and meandering

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5
Q

Type of fluvial which is consist of small channels

A

Straigh/Braided

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6
Q

Type of fluvial that is sinuous wiver with bends, snaking pattern as streams back n forth

A

Meandering river

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7
Q

Place of erosion in meandering river

A

Cutbanks / outer banks

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8
Q

Place of deposition in meandering river

A

Point bar/ innerpart

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9
Q

Fan or coned shaped deposits of sediments built up by streams

A

Alluvial fan

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10
Q

Where the finer sand settles along the inner bends of the river

A

Pointbars

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11
Q

Dominated by wind currents rather than water

A

Aeolian environment

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12
Q

Formed by the accumulation of wind blown silts and lesser and variable ammount of sand and clay that are loosely cemented by carbonate materials

A

Loess

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13
Q

Prograding deposition bodies that form at the point where a RIVER debauches in a LAKE or SEA

A

Deltas

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14
Q

Dessert alluvial fan

A

Bajada

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15
Q

Sediments deposited within the lakes

A

Lacustrine

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16
Q

Land locked body of standing, non marine water

A

Lake

17
Q

Paludal environment

A

Swamps

18
Q

Lakes formed from crustal stretching

A

Rift garden

19
Q

Form lacustrine deposit from seasonal overflood banking

A

Oxbow lake

20
Q

Type of sedimentary environment that is controlled mostly by the weathering and erosion by glaciers and glacial meltwater

A

Glacial

21
Q

Occurs by addition of snowfall, compaction and recrystallization

A

Accumulation

22
Q

Loss of mass from melting

A

Ablation

23
Q

Cracks in glacier

A

Crevasses

24
Q

Glacier deposition making land features

A

Moraines

25
Q

half-bowled-shaped valley formed by glacial erosion

A

Cirques

26
Q

sharp long narrow ridges at mountain tops formed by glacial
erosion.

A

Arete

27
Q

areas that are close to shore, but always submerged

A

Shallow marine

28
Q

areas have a significant amount of mature clastic sediment along with marine algae (like sea grass) as well as skeletal material from animals like coral, echinoderms (sea urchins and sand dollars), and mollusks (clams and snai

A

Shallow marine

29
Q

areas have a significant amount of mature clastic sediment along with marine algae (like sea grass) as well as skeletal material from animals like coral, echinoderms (sea urchins and sand dollars), and mollusks (clams and snai

A

Shallow marine

30
Q

formed through the growth of coral colonies building a large three-dimensional structure built from calcite skeletons

A

Reef

31
Q

Found in warm tropical shallow water

A

Reef depositional environment

32
Q

These areas are beyond the reach of most clastic sediment other than the dust carried by the wind.

A

Deep marine

33
Q

beach depositional environments there are areas where rivers flow into the ocean

A

Deltas

34
Q

Shorelines that are influenced by strong daily tidal current

A

Tidal mudflat depositional environment

35
Q

Tides are currents that are the result of the gravitational forces exerted by the _________

A

Moon and rotation of the earth

36
Q

Shorelines that are dominated by ocean currents

A

Beach depositional environment