Transantarctic Mountains

Results: 162



#Item
21Gould Coast / Shackleton Coast / Mount Early / Sheridan Bluff / Scott Glacier / Transantarctic Mountains / Wisconsin Range / Churchill Mountains / Geography of Antarctica / Amundsen Coast / Queen Maud Mountains

much lower levels than the outcrops along Touchdown Glacier. As the survey was extended south of the head of Byrd Glacier into the area of the Sefton and Zeller glaciers, a complex series of low-grade metamorphic rocks w

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Language: English - Date: 2011-05-06 03:37:40
22Ross Dependency / Carryer Glacier / Sledgers Glacier / Transantarctic Mountains / Antarctica / Tobogganers Icefall / Pennell Coast / Geography of Antarctica / Physical geography

dently, this clast was once at the base of the east antarctic ice sheet which may be more than 3 kilometers thick, according to the ice-flow model of Whillans and Cassidy (1983), although an extrapolation of the radar so

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Language: English - Date: 2011-05-06 04:08:39
23Glacial landforms / Physical geography / Scott Coast / Glacier / McMurdo Sound / Transantarctic Mountains / Anchor ice / Sediment / Geography of Antarctica / Petrology / Geology

Study of grounding-line sedimentation processes at the Mackay Glacier tongue using a remotely operated vehicle Observations on the seafloor epibenthic community MICHAEL DAwBER and Ross D. POwELL, Department of Geology,

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Language: English - Date: 2011-05-06 17:41:00
24McMurdo Dry Valleys / Climate history / Ice ages / Glacial landforms / Transantarctic Mountains / Glacier / Antarctica / Ice sheet / Coral Ridge / Physical geography / Geography of Antarctica / Glaciology

Specific targets, especially those related to the sediments that lie immediately above the Kukri erosion surface, were examined in detail. Several areas were found where sedimentary beds in the lower Beacon Group showed

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Language: English - Date: 2011-05-06 06:13:47
25McMurdo Sound / McMurdo Ice Shelf / Archibald McMurdo / McMurdo Dry Valleys / Geography of Antarctica / Scott Coast / Transantarctic Mountains

figure 2 that the core is enriched in the components ferrous oxide (FeO), magnesium oxide (MgO), calcium oxide (CaO), manganese oxide (MnO), potassium oxide (K 20), water (H20) (?), and fluorine (F) relative to the tonal

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Language: English - Date: 2011-05-06 05:40:57
26Geologic formations / Petrology / Sedimentary rock / Turbidite / Beardmore Glacier / Transantarctic Mountains / Beacon sandstone / Geology / Geography of Antarctica / Dufek Coast

canic detritus, derived from a caic-alkaline arc along the paleoPacific margin, became the principal component in sandstone. This change from cratonic to orogenic provenance was the result of a shift in the basin axis to

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Language: English - Date: 2011-05-06 07:07:21
27Ice core / Incremental dating / Water ice / Antarctica / Proxy / Transantarctic Mountains / Ross Ice Shelf / Ice shelf / Ice sheet / Physical geography / Glaciology / Geochronology

of this ice in the lower part of ice stream B. The differences in 180 fine structure between the 1976 and 1978 records indicate that the large, and as yet unexplained, 8 180 fluctuations in the 1978 core in this interval

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Language: English - Date: 2011-05-06 16:46:05
28Transantarctic Mountains / Till / Glacier / McMurdo Sound / McMurdo Dry Valleys / Antarctica / Marble Point / Ice sheet / Glacial erratic / Physical geography / Geography of Antarctica / Glaciology

valleys and other areas to the east of the Transantarctic Mountains divide may have a source in sedimentary basins in East Antarctica. Correlation of glacial deposits by their constituent microfossils should be approache

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Language: English - Date: 2011-05-06 18:16:29
29Ross Dependency / Sandstone / Wright Valley / Lake Vanda / Vanda Station / Onyx River / Feldspar / Transantarctic Mountains / Antarctica / McMurdo Dry Valleys / Physical geography / Geography of Antarctica

phorus also increased along the Onyx as far as Bull Pass, but between the pass and the Vanda Weir, it decreased bya factor of three. We suspect that an active algal community just above Bull Lake may be acting as a phosp

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Language: English - Date: 2011-05-06 06:14:18
30McMurdo Dry Valleys / Biological oceanography / Planktology / Fossils / Diatom / Sedimentology / Transantarctic Mountains / Micropaleontology / Antarctica / Geography of Antarctica / Physical geography / Water

known. The framework modes and their sources suggest deposition in a foreland basin but do not preclude accumulation in a pull-apart basin. Resolution of basin type is hindered because sequences are fragmentary, folded,

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Language: English - Date: 2011-05-06 15:39:04
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