LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
glacier -
correct answer ✅a moving mass of ice, snow, rock, and other
sediment
icefall -
correct answer ✅a steeply flowing mass of ice
valley/alpine glacier -
correct answer ✅a glacier that flows down a valley and tends to be
narrow
piedmont glacier -
correct answer ✅a broad glacier that forms when an ice sheet or
valley glacier spreads out as it moves into less confined topography
zone of accumulation -
correct answer ✅the upper part of a glacier or ice sheet, where
snow and ice are added faster than they are removed by melting
and other processes
sublimation -
correct answer ✅the process by which a material moves from a
,LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
solid phase directly into a vapor, as occurs when a glacier loses ice
molecules directly to the air
equilibrium line -
correct answer ✅the zone in a glacier where the losses of ice and
snow balance the accumulation of ice and snow
terminus -
correct answer ✅the lower end of a glacier
calving -
correct answer ✅the breaking off of a mass of ice from a glacier,
iceberg, or ice shelf
iceberg -
correct answer ✅a massive piece of ice floating or grounded in the
sea or other body of water
abrasion -
correct answer ✅the mechanical wearing away of rock surfaces by
contact with sand and other solid rock particles transported by
running water, waves, wind, ice, or gravity
,LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
plucking -
correct answer ✅the removal of pieces of rock by a glacier
glacial erratic -
correct answer ✅a rock fragment carried by moving ice and
deposited some distance from where it was derived
englacial debris -
correct answer ✅debris carried within glacial ice
supraglacial debris -
correct answer ✅debris carried on the surface of a glacier
subglacial debris -
correct answer ✅glacial debris that originates where the glacier
meets bedrock
moraine -
correct answer ✅sediment carried by and deposited by a glacier;
also refers to the resulting landform
, LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
lateral moraine -
correct answer ✅sediment carried in and deposited along the
sides of a glacier
medial moraine -
correct answer ✅sediment carried in the center of a glacier,
representing where two glaciers joined; also refers to the deposited
sediment and resulting landform
terminal moraine -
correct answer ✅glacially carried sediment that accumulates at
the terminus of a glacier and a landform composed of such
materials generally marks the glacier's farthest downhill extent
cirque -
correct answer ✅an open-sided, bowl-shaped depression formed
in a mountain, commonly at the head of a glacial valley; produced
by erosion of a glacier
tarn -
correct answer ✅a small lake, especially one within a cirque, a
glacially scoured depression
Questions & Answers (Grade A+)
glacier -
correct answer ✅a moving mass of ice, snow, rock, and other
sediment
icefall -
correct answer ✅a steeply flowing mass of ice
valley/alpine glacier -
correct answer ✅a glacier that flows down a valley and tends to be
narrow
piedmont glacier -
correct answer ✅a broad glacier that forms when an ice sheet or
valley glacier spreads out as it moves into less confined topography
zone of accumulation -
correct answer ✅the upper part of a glacier or ice sheet, where
snow and ice are added faster than they are removed by melting
and other processes
sublimation -
correct answer ✅the process by which a material moves from a
,LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
solid phase directly into a vapor, as occurs when a glacier loses ice
molecules directly to the air
equilibrium line -
correct answer ✅the zone in a glacier where the losses of ice and
snow balance the accumulation of ice and snow
terminus -
correct answer ✅the lower end of a glacier
calving -
correct answer ✅the breaking off of a mass of ice from a glacier,
iceberg, or ice shelf
iceberg -
correct answer ✅a massive piece of ice floating or grounded in the
sea or other body of water
abrasion -
correct answer ✅the mechanical wearing away of rock surfaces by
contact with sand and other solid rock particles transported by
running water, waves, wind, ice, or gravity
,LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
plucking -
correct answer ✅the removal of pieces of rock by a glacier
glacial erratic -
correct answer ✅a rock fragment carried by moving ice and
deposited some distance from where it was derived
englacial debris -
correct answer ✅debris carried within glacial ice
supraglacial debris -
correct answer ✅debris carried on the surface of a glacier
subglacial debris -
correct answer ✅glacial debris that originates where the glacier
meets bedrock
moraine -
correct answer ✅sediment carried by and deposited by a glacier;
also refers to the resulting landform
, LSU Geology 1001 Doran Exam 2
Questions & Answers (Grade A+)
lateral moraine -
correct answer ✅sediment carried in and deposited along the
sides of a glacier
medial moraine -
correct answer ✅sediment carried in the center of a glacier,
representing where two glaciers joined; also refers to the deposited
sediment and resulting landform
terminal moraine -
correct answer ✅glacially carried sediment that accumulates at
the terminus of a glacier and a landform composed of such
materials generally marks the glacier's farthest downhill extent
cirque -
correct answer ✅an open-sided, bowl-shaped depression formed
in a mountain, commonly at the head of a glacial valley; produced
by erosion of a glacier
tarn -
correct answer ✅a small lake, especially one within a cirque, a
glacially scoured depression
