Peatland Formation - Terrestrialization Flashcards Preview

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Flashcards in Peatland Formation - Terrestrialization Deck (5)
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Q

Organic matter production comes from internal lake production, such as

A

Algae, material falling into the lake such as leaves, and from organic matter or sediment carried in streams and rivers.

1
Q

Occurs when shallow lakes are gradually filled by the

A

Accumulation of organic matter deposited on the lake floor and from the advance of peatland vegetation from either side of the lake.

2
Q

Plants such as reeds and mosses can form a mat that

A

Floats on the lakes surface. This gradually thickens as leaves die and other plants grow on top.

3
Q

Quaking bog: formed when the thick mat on the

A

Lake surface becomes colonised by other plants.

4
Q

Kettle hole bogs: form when a block of ice left from a

A

Retreating glacier forms a deep hole which fills with water and then eventually peat.