glacial environment

Question 1

slow mobing mass or river of ice

Answer 1

glacier

Question 2

relatively small glaciers which occur at higher elevations in mountains

Answer 2

alpine glaciers

Question 3

largest type of glaciers occupying more than 50,000 km sq of land

Answer 3

ice sheet

Question 4

thick suspended platform of ice on water attached to land

Answer 4

ice shelves

Question 5

glaciers occupying a hallow bowl shaped epression

Answer 5

cirque glaciers

Question 6

steams of flowing ice that are confined within steep valley

Answer 6

valey glaciers

Question 7

a valley glacier extending down to sea level and carves a narrow valley

Answer 7

fjords

Question 8

a covering of ice over a large are below 50,000 km sq.

Answer 8

ice cap

Question 9

ice is at temperature near its melting point

Answer 9

temperate glaciers

Question 10

ice always maintain a temp below its melting point

Answer 10

polar glaciers

Question 11

5km, elevation above which snow can form and remain present throughout the year

Answer 11

snowline

Question 12

zone where addition of snowfall, compaction, and recrystallization occurs

Answer 12

accumulation zone

Question 13

zone where the loss of mass resulting from melting occurs

Answer 13

ablation zone

Question 14

meltwater at base of glaciers reduces friction by lubricating the surface and allowing the glaciers to slide

Answer 14

basal slip

Question 15

process by which glaciers flow as grains of ice deform under pressure and slide over each other

Answer 15

internal plastic flow

Question 16

occurs when accumulation rate exceeds the ablation rate

Answer 16

glacial advancing

Question 17

accumulation rate is less than the ablation rate

Answer 17

glacial retreat

Question 18

modification of land surface by the action of glaciers

Answer 18

glaciation

Question 19

glacier flows over a fractured bedrock surface, it loosens and lifts blocks of rocks

Answer 19

plucking

Question 20

ice and its load of rock fragment slide over bedrock, acts like a sand paper it smooth and polish the surface

Answer 20

abrasion

Question 21

sharp crested serrate rdiges

Answer 21

aretes

Question 22

angular, sharply pointed mountain peak which results from cirque erosion

Answer 22

horns

Question 23

valley with a characteristic u-shaped, with steep, straight sides and rounded bottoms

Answer 23

U-shaped valleys

Question 24

a valley elevated above another valley

Answer 24

hanging valley

Question 25

small mountain lake

Answer 25

tarns

Question 26

one of a series glacial lakes connected by a single stream

Answer 26

paternoster lake

Question 27

shallow sediment-filled body of water formed by retreating glaciers or draining floodwaters

Answer 27

kettle

Question 28

all sediments deposited as a result of glacial erosion

Answer 28

glacial drift

Question 29

materials deposited directly by glaciers

Answer 29

till

Question 30

till undergone diagenesis and turned into a rock

Answer 30

tillite

Question 31

glacially deposited rock or fragments that now rests on a surface made of different rock

Answer 31

erratics

Question 32

unsorted chaotic deposits deposited on the sea floor or lake bed

Answer 32

glacial marine drift

Question 33

accumulation of till carried or deposited by a glacier

Answer 33

moraines

Question 34

unsorted materials left beneath the glacier when the ice melts

Answer 34

ground moraines

Question 35

tills deposited along the sides of a mountain glacier

Answer 35

lateral moraines

Question 36

two valley glaciers meet to form a larger glacier

Answer 36

medial moraines

Question 37

small ridges of till deposited at the elading age of a melting glaciers

Answer 37

terminal/end moraines

Question 38

glacial drift can be picked up and moved by melt water streams whhich can then deposit thatmaterial

Answer 38

stratified drift

Question 39

irregular shaped hill or mound composed of san, till, and gravel

Answer 39

karnes

Question 40

plain formed of glacial sediments deposited by meltwater outwash at the terminus of a glacier

Answer 40

outwash plain