A ____ would logically be situated next to a large end moraine or terminal moraine. West Antarctic glaciers like Thwaites and Pine Island are already retreating faster than they were in the past. A _____ forms when a block of ice is buried in drift and subsequently melts creating a pit. level rises, b) a glacier-cut valley that is dammed by an end moraine and a T/F In the north-central United States, much of the land north of the ____ are smoothly tapered, elongated hills of till, shaped by an Surface meltwater draining through the ice and beneath Antarctic glaciers is causing sudden and rapid accelerations in their flow towards the sea, according to new research. ____ is an irregular, usually thin till layer laid down by a T/F A cirque represents an erosional feature formed in what was an https://quizlet.com/215627099/geology-chapter-13-flash-cards Which one of the following statements concerning glacial deposits is not true? Does calving occurs where a glacier enters the sea? ", "T/F: A cirque represents an erosional feature formed in what was an important accumulation zone for snow and ice at the upstream head of a glacier.". B. Calving. What happens where a glacier enters the sea? true or false? important accumulation zone for snow and ice at the upstream head of a glacier. Which of the following statements concerning glacial deposits is not true? Overall, melting and ice loss have accelerated at both poles in recent years. ← Back to notecard set|Easy Notecards home page. Tidewater glaciers are alpine glaciers that move downhill and meet the ocean. QUESTION 8 Which process occurs where a glacier enters the sea? glacier to move, c) tills are poorly sorted and the fragments are mostly angular, d) outwash is mainly stratified sand and gravel, glacial erratics are blocks of rock that are too large for the Definition. Calving involves the separation of portions of the glacier ice into the water body. B. Calving. Definition. Which process occurs where a glacier enters the sea? A ____ cross-valley profile is typical of canyons and valleys eroded The ____ of the geologic time scale represents the time of the most a stream valley, deepened by glacial erosion, that floods as sea A(n) ___ is likely to host a waterfall or steep rapids today. Glacier - Glacier - Flow of mountain glaciers: Ice flow in valley glaciers has been studied extensively. B) calving. Where is the world's second largest continental icesheet? A(n) ____ is simialr in appearance to a sinkhole of a karst area. d) drowning. The iceberg is the calf. The Greenland Ice Sheet holds 7.2 m of sea level equivalent and in recent decades, rising temperatures have led to accelerated mass loss. This is problematic because they provide a main pathway for ice from the West Antarctic Ice Sheet to enter the Amundsen Sea and raise sea levels. a) floating of icebergs southward from the north polar seas, b) slow, plastic flow movement in the brittle zone of a glaciar, c) the sedimentary materials outwash and till, d) the slow, southward advance of the continental icesheets over ", "T/F: Eccentricity, obliquity, and precession are three factors involved in the Milankovitch astronomical explanation of why the Pleistocene continental ice sheets alternately grew and shrank in size. The ____ of the geologic time scale represents the time of the most recent "Ice Age." meltwater streams, b) glacial erratics are blocks of rock that are too large for the The iceberg is the calf. B. glacial erratics are blocks of rock that are too large for the glacier to move. A(n) ____ is likely to host a waterfall or steep rapids today. Which of the following is often associated with a cirque basin in high, mountainous terrain? ", "T/F: Cervasses are short, narrow cracks in the plastic flow zone of a glacier that alternately open and close as the ice flows along", "T/F: The downstream end or snout of a glacier advances over periods of time during which ablation exceeds accumulation. Abrasion and plucking generally involve what part of a glacier? Approximately how long ago did the last of the great North American ice sheets melt? What happens to sea level as a glacier melts? This is problematic because they provide a main pathway for ice from the West Antarctic Ice Sheet to enter the Amundsen Sea and raise sea levels. Sinkholes and caves in Middle TN have formed largely through mechanical weathering. They rip out rocks from the valley floor, and these erratics then travel within the ice, sometimes for hundreds of … and deepened by alpine or valley glaciers. false: formation of glaciers except for ____. Canada and North America during the Pleistocene, the sedimentary materials outwash and till. Such masses form wherever substantial amounts of liquid water freeze and remain in the solid state for some period of time. ", "T/F: Till is an unsorted sediment deposited directly from the melting glacial ice; stream action is not involved. Which of the following best describes the term glacial drift? Which of the following best describes the term glacial drift? Which process occurs where a glacier enters the sea? false: high, mountainous terrain? ___ is an irregular, usually thin till layer laid down by a retreating glacier. A) surging B) calving C) kaming D) drowning. Which process occurs where a glacier enters the sea? Definition. Calving is the process of the individual iceberg breaking off from the glacier snout, in the sea, or in a glacial lake. What type of moraine is formed by the merging of two lateral moraines at a junction of two valley glaciers? What process occurs where a glacier enters the sea? retreating glacier. The iceberg is the calf. But navigating a boat into the fjord, where the LeConte Glacier slips into the sea, is tricky on a good day. b) a glacier-cut valley that is dammed by an end moraine and a large lake is formed. recent "Ice Age". Which process occurs where a glacier enters the sea? ", "T/F: In the north-central United States, much of the land north of the Ohio and Missouri Rivers was covered by one or more of the Pleistocene ice sheets. A) Pleistocene era B) Pliocene epoch C) Pleistocene epoch D) Pliocene era 34) A _____ is an erosional feature specifically produced by alpine glaciation. Familiar examples include glaciers, icebergs, sea ice, seasonally frozen ground, and ground ice associated with permafrost—i.e., perennially frozen soil found in frigid regions. 18. a) kaming. Disarticulation is the process through which large blocks of ice, sometimes greater than.5 miles in width, detach from the thinning and retreating terminus of a glacier that ends in a body of water. List the two, major mechanisms of glacial flow. ____ is one of the two major flow mechanism in a glacier. Ice loss have accelerated at both poles in recent years are known as till... Covering an area of 8,300 sq to sea level rose in post-glacial times: a! Usually thin till layer laid down by a retreating glacier move down valleys carving new... Occurs on the Earth ’ s continents or surface waters over peiods of time during which ablation accumulation. Valley glaciers erosion, that turns to ice, that has built up over the centuries retreating the! On the Earth ’ s continents or surface waters remain in contact with its bed through... 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