Bond cycles/climate variations Flashcards
1
Q
dansgaard oeschger cycles
A
fast climate fluctuations happened 25 times in last glacial
2
Q
what is 1 DO cycle made up of
A
a greenland stadial (cold/dusty) and greenland interstadial (warm, methane)
3
Q
bond cycles
A
cold events that happened in holocene, ice rafting, 7 heinrich events (glaciers break and freshwater released)
4
Q
causes of these cycles
A
binge purge (ice accumulates and breaks and drifts off and pushes freshwater forward, changes solar activity)
5
Q
holocene interglacial
A
11.5ka-today, warming, retreat of glaciers, sea rise
6
Q
holocene in uk
A
younger dryas retreat in scotland, high sea levels disconnected uk from europe
7
Q
holocene climate optimum
A
9.8ka-5.7 humid, cools tropics
8
Q
little ice age
A
1450-1850AD glaciation, volcanism
