A | B |
GLACIER | slow moving mass of ice 1000s of feet thick |
VALLEY GLACIER VS. CONTINENTAL GLACIER | valley glaciers fill a mountain (alpine) valley; continental glaciers are much larger and round off mountain tops that they cover |
ICE SHEET | an ice pack covering nearly an entire landmass |
GLACIAL MILK | rock flour mixed with water |
ROUCHES MOUTONNEES | "sheep rocks" with one smooth polished side; helps show movement of a glacier |
ARETE | sharp, narrow ridges between cirques |
TERMINAL MORAINE | unsorted glacial deposits showing the farthest advance; Long Island is one |
DRIFT | any deposits left behind when a glacier melts |
ESKER | winding snakelike deposit of a subglacial stream |
FINGER LAKE | moraine-dammed lake in a long, narrow valley |
KETTLE | depression left by a melted subterranean ice block |
ERRATIC | boulder deposited by a glacier far from its origin |
SNOW LINE | lowest elevation at which snow remains all year; when moving away from the equator the snow line becomes lower |
FIRN | snow that gets compressed and recrystalizes as granular ice |
FASTEST MOVING SIDE OF A GLACIER | center of the surface |
LONG ISLAND FEATURES | 5 QUESTIONS ON THIS TEST- BARRIER BEACHES, HARBOR HILL MORAINE, ETC. |