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22 terms

Chaps 10 & 11

this is terms from the test.. look through the test for the other questions that are not terms.
STUDY
PLAY
groundwater
the 3rd highest percentage of Earth's freshwater following ice sheets and glaciers
water table
a boundary between saturated rock below and unsaturated rock above
permeability
controls the ease, or difficulty, of groundwater transmission through a porous material
artesian well
a well in which water rises above the top of the aquifer without pumping
stalactite
the icicle-like speleothem that grows down from the roof of a cavern
aerated zone
lies above the water table
aquifer
a saturated, porous, and permeable layer or stratum
porosity
the volume of the voids or open space in a rock or unconsolidated material
unconfined water table
boundary between the aerated zone above and the saturated zone below
geyser
a hydrothermal vent that periodically or occasionally erupts a column of steam and hot water
sinkhole
a depression produced in a region where soluble rock has been removed by groundwater
stalagmite
the column-like form that grows upward fromt he floor of a cavern
ice sheet
a very large, thick mass of glacial ice flowing outward in all directions from one or more accumulation centers. the largest example is Antarctica
crevasse
a deep crack in the brittle surface of a glacier
cirques
erosional features produced by valley/alpine glaciers
drumlin
a depositional feature composed of till and only associated with continental glaciation, not with alpine glaciers
fiord
a stream valley, deepened by glacial erosion, that floods as sea level rises
calving
wastage of a glacier that occurs when large pieces of ice breaks off into water. this process occurs where a glacier enters the sea
u-shaped valley
an erosional feature specifically produced by alpine glaciation
drumlin
a smooth, tapering ridge of till; formed and shaped beneath a continental ice sheet
medial moraine
a ridge of till formed when lateral moraines from two coalescing valley glaciers join
kettle holes
depressions created when blocks of ice become lodged in glacial deposits and subsequently melt