Random Quaternary Bits Flashcards
Homo erectus is thought to have got out of Africa how long ago
1.8 million years ago
The last interglacial in Britain is known as
Ipswichian
What animals were found in Britain during the ipswichian
Aurochs, bison, fallow deer, horse
How many D-O events have been recorded from the Greenland ice core record
25
Heinrich events are commonly recorded in sediment cores from which oceanic sector
North Atlantic
Which cities were covered by the British Irish ice sheet in the last glacial Maximum
Belfast, Leeds, Douglas
How much has the concentration of atmospheric co2 increased by since the end of the LGM
200 ppm
How much has sea level risen since the end of the LGM
125m
Approx how many cold and temperate cycles have been recorded over the past 2.6 mil years
100
The earliest presence of humans in Britain was between
780,000-990,000 years ago
Sub fossil testate amoebae are typically used to reconstruct what
Peatland water balance
What is an interstadial
A period of higher temperatures during a glacial
The younger dryas event lasted how long
1100 years
When did people first get to Australia
60,000 years ago
What is the age limit of radiocarbon dating
50,000 years
What is a key forcing factor of global climate over multi decadal time scales in the Holocene
Sola variability
When did agricultural techniques start to be used
Approx 6000 BP
What is the start of the anthropogenic characterised by
Climatic warming
Rapid population growth
Dawn of agriculture
Milankovitch theory suggests that the next glaciation will not occur for another
50,000 years
Loses deposits primarily consist of
Fine grained wind blown sediment
The southern annular mode is predominantly influenced by which climatic variable
Southern westerly wind belt
What is a stadial
A period of low temperatures characterised by high global ice volume
Approximately when did the Neanderthals become extinct
24,000 years ago
Mean annual temperatures in Britain in the late glacial maximum were thought to be as low as
-10 degrees
