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GG1002: The Biosphere et al. > Reconstructing the Past > Flashcards

Flashcards in Reconstructing the Past Deck (12)
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1
Q

Proxy

A

A substitute for a direct measurement or observation: can infer climatic change

2
Q

Archive

A

Where proxies are stored

3
Q

4 archives

A

Ocean Sediments
Ice Core Records
Loess deposits
Lake Basins / wetlands

4
Q

Biological

A

Beetles, pollen, diatoms (algae), Bones and teeth

5
Q

Geomorphological

A

Moraines, fluvial landforms, river terraces

6
Q

Sediment

A

Sedimentary proxies build up of sediment in tills

7
Q

Brohan et al (2006)

A

GrAPH SHOWING INCREASING TEMP RELATIVE TO PAST

8
Q

Kuala (1989)

A

Over 40 interglacial/glacial cycles between late pleistocene and the holocene

9
Q

Lowe and Walker (2015)

A

correspondence of proxies allow for greater detail

length of quaternary is debated

10
Q

Atkinson (1987)

A

UK at the end of the glacial extent, battleground for changing glacial presence

beetle remains have provided some extraordinary detail for the last 22’000 years

11
Q

Birks (1989)

A

Pollen analysis can be observed and interpreted differently depending on the aim of the study

Provide insight into changing UK climate

suggests transition periods

12
Q

Noller et al (2000)

A

Proxies and archives incredible detail

if it can be compared globally = better

uniform changes/correspondence