Områder Flashcards

1
Q

What are the different glacial areas?

A

Periglacial
Proglacial
Subglacial
Englacial
Subraglacial

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2
Q

Where is periglacial?

A

It is the furthest zone from the glacier, in front of the proglacial zone

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3
Q

Where is the proglacial zone?

A

It is right in front of the glacier, with the periglacial zone to one side and ice contact to the other

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4
Q

Where is the subglacial zone?

A

It is the basal zone. The bottom of the glacier

Underneath the glacier???

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5
Q

Where is the englacial zone?

A

Inside the glacier

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6
Q

Where is the subraglacial zone?

A

On top of the glacier

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7
Q

What are the different types of moraines?

A
  • Lateral moraine - on the side of the glacier
  • Medial moraine - moraine in the middle (still parallel) from merging of lateral moraines
  • End moraine - in front of the glacier
  • Terminal moraine - the furthest end moraine
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8
Q

What are the similarities between glaciolacustrine and glaciomarine environments?

A
  • Mechanisms of sediment release
  • sedimentation in water
  • rhythmic sedimentation
  • wave action (down to 20m)
  • icebergs
  • Dropstones
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9
Q

What are the differences between glaciolacustrine and glaciomarine environments?
(Marine vs. Lacustrine)

A
  • Saltwater vs. Freshwater (density)
  • global basins vs. Local
  • tidal influence vs. None
  • global current pattern vs. Local
  • stratification mainly due to salinity and temp. Diff. Vs. Temp. Diff.
  • lots of biota vs. Less biota
  • lots suspended sediment plumes vs. Few
  • flocculation vs. Varves
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10
Q

How is the periglacial zone defined, and what does this mean?

A

It is the domain of frost climate.
This means the effects of ground frost (permafrost), and also other processes affected by frost climate

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