Sedimentary Environments

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17 Terms

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Marine
Continental
Transitional (Shoreline)

What are the 3 major sedimentary environments?

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Sedimentary Environment
Environment of Deposition

A geographic setting where sediment is accumulating. Each site is characterized by a particular combination of geologic processes and environmental conditions.

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Sand Dunes

Hills of sand consist of well-sorted sand grains deposited by the wind.

<p>Hills of sand consist of well-sorted sand grains deposited by the wind.</p>
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Caves

Are sites where calcium carbonate is deposited as dripstone. Develop when groundwater dissolves limestone

<p>Are sites where calcium carbonate is deposited as dripstone. Develop when groundwater dissolves limestone</p>
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Tidal Flats

Shallow, often muddy, part of foreshore, which are covered and uncovered by the rise and fall of the tide

<p>Shallow, often muddy, part of foreshore, which are covered and uncovered by the rise and fall of the tide</p>
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Lagoons

Area of relatively shallow, quiet water situated in a coastal environment and having access to the sea but separated from the open marine conditions by a barrier. The barrier may be either a sandbar, a barrier island or it may be a coral reef.

<p>Area of relatively shallow, quiet water situated in a coastal environment and having access to the sea but separated from the open marine conditions by a barrier. The barrier may be either a sandbar, a barrier island or it may be a coral reef.</p>
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Tidal Flats and Lagoons

Are areas where fine clay particles or carbonate-rich muds accumulate

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Beaches

Gently sloping coasts covered by sand or pebbles

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Deep Marine Environment

Adjacent to the continental slope often contain material that was transported by dense underwater currents of suspended sediment. Each layer has coarser particles at the bottom and finer material on top.

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Shallow Marine Environment

Are sites where sand, clay, and carbonate-rich muds are often deposited. Ripple marks caused by wave activity may be present.

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Alluvial Fans

Fan-shaped deposits of course sediments dropped by streams flowing out of mountains

<p>Fan-shaped deposits of course sediments dropped by streams flowing out of mountains</p>
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Swamps and Bogs

Are quiet-water environments where mud and decayed plant material accumulate.

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Bogs

Is a wetland that accumulates peat as a deposit of dead plant materials - often mosses,

<p>Is a wetland that accumulates peat as a deposit of dead plant materials - often mosses,</p>
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Swamp

A wetland ecosystem characterized by mineral soils with poor drainage and by plant life dominated by trees.

<p>A wetland ecosystem characterized by mineral soils with poor drainage and by plant life dominated by trees.</p>
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Streams

Any body of flowing water confined within a channel, regardless of size. Usually a natural flow of water that is smaller than a river

<p>Any body of flowing water confined within a channel, regardless of size. Usually a natural flow of water that is smaller than a river</p>
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Coral Reefs

A ridge of rock in the sea formed by the growth and deposit of coral.

<p>A ridge of rock in the sea formed by the growth and deposit of coral.</p>
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Lakes

A body of accumulated water that is surrounded by land it can be fresh water or salt water.

<p>A body of accumulated water that is surrounded by land it can be fresh water or salt water.</p>