keywords Flashcards
(12 cards)
albedo effect
how much sunlight a surface reflects back into space
calving
breaking up of chunks of ice at the glacier snout or ice sheet front to form icebergs as the glacier reaches a lake or the ocean
thermohaline circulation
a global system of surface and deep-water ocean currents driven by differences in temperature and salinity between areas of the ocean
quarternary period
period fo time we are currently living in, which is divided into two periods
pleistocene
beginning of quarternary to about 11,500 years ago when most recent glaical period called Devensian ended
Holocene
interglacial period we are currently in
LGM
last glacial maximum
entrainment
where sediment is incorporated into a moving glacier
scree
pile of loose rocks on mountain slopes
quarrying
meltwater freezes to rocks, and as glacier moves it pulls rock
plucking
glacier freezes to rock and pulls pieces away off bedrock as it moves