19-20

Question 1

Karst landforms - sink

Answer 1

stream disappears into underground channel at a fault or enlarged join that has widened from dissolution

Question 2

Karst landforms- dolines

Answer 2

surface depression from the collapse of an underground system, solution splines or sinkholes formed by dissolution , larger dolines = uvala

Question 3

Karst landforms- karst towers

Answer 3

found in tropical areas
remnants of thick bedrock sequence of limestone
side slopes almost vertical = cone

Question 4

Karst landforms- caves

Answer 4

substantial opening in the bedrock that leads to an interior open space except fo rtes entrance a gave cannot be seen form the surface
medium - grottos, larger- rooms, biggest - chambers

Question 5

Karst landforms-caves stalactites ceiling (chandelier)

Answer 5

passages depend on lithology, structure, faulting and jointing of bedrock
dripping water saturated with dissolved minerals precipitate out of evaporating solution leaving dripstone features stalactites ceiling (chandelier)

Question 6

fluvioglacial landforms

Answer 6

landforms created by meltwater streams flowing on in and under glacier ice

Question 7

fluvioglacial landforms - eskers

Answer 7

long sinus mounds of sand/gravel

formed by the clogging of a river course within or under the glacier which deposits the debris after the ice melts

Question 8

fluvioglacial landforms - kames

Answer 8

mound of unsorted material deposited at or near terminus of a glacier,

Question 9

fluvioglacial landforms - kettles

Answer 9

large depressions caused by post depositional melting of ice chunks initially buried by outwash material often contain lakes and wetlands

Question 10

fluvioglacial landforms - drumlins

Answer 10

oval shaped streamlined hill deposits of glacial till, found all over canada

Question 11

Glacial Mass Balance

Answer 11

the inputs and outputs of mass in a system
positive = glacier advances with steep icy edge
negative = glacier thins and recedes
lag time between change in mass balance and response

Question 12

Ice classification - active ice,

Answer 12

continuous supply of ice from the accumulation zone (athabasca glacier)

Question 13

passive ice

Answer 13

discontinuous supply common on mountain sides (dome glaciers)

Question 14

dead ice

Answer 14

no ice supply, movement depends on valley slope (Kitchener glacier)

Question 15

Landform features resulting from glacier movement - Glacial valley /trough

Answer 15

u shaped steep straight valley walls

Question 16

Landform features resulting from glacier movement - hanging valley

Answer 16

side valley that enters a main valley at an elevation high above the main valley floor. Hanging valleys are typically formed when the main valley has been widened and deepened by glacial erosion, leaving the side valley cut off abruptly from the main valley below
- waterfalls

Question 17

Landform features resulting from glacier movement - cirque

Answer 17

amphitheater like basin cut by a glacier

Question 18

Landform features resulting from glacier movement - horn

Answer 18

sharp pointed mountain peak where cirques intersect

Question 19

Landform features resulting from glacier movement - aretes

Answer 19

sharp jagged edges that separate adjacent glaciers valleys or cirques