Transantarctic Mountains

Results: 162



#Item
11Glacier / Ice sheet / Antarctica / Pensacola Mountains / Dufek Massif / Transantarctic Mountains / Davis Valley / Glacial erratic / Ice shelf / Physical geography / Glaciology / Ice age

types—slate, siltstone, sandstone, and dacite—but not on the coarse-grained intrusive rocks abundant in this area. These intrusive rocks appear to be so readily grussified that polish or striations, if originally pre

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Language: English - Date: 2011-05-06 03:38:11
12Queen Maud Mountains / Geophysics / Planetary science / Amundsen Coast / Physical oceanography / Earth tide / Transantarctic Mountains / Moon / Scott Glacier / Physical geography / Geography of Antarctica / Tides

Granitic rocks were systematically collected on the traverse down Scott Glacier for later chemical analysis. In the Gothic Mountains a roof pendant of porphyry similar to the Wyatt Formation was visited and the granitic

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Language: English - Date: 2011-05-06 06:15:19
13Seismology / Thiel Mountains / Continental collision / Transantarctic Mountains / Orogeny / Paleomagnetism / West Antarctica / Pagano Nunatak / Geology / Plate tectonics / Geodynamics

cesses along the Antarctic Peninsula margin. Argon-40/argon-39 age spectrum studies have already indicated a Paleozoic age for the blue schist metamorphism on Smith Island (Grunow, Dalziel, and Harrison 1987), but no age

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Language: English - Date: 2011-05-06 15:40:12
14Antarctic ecozone / Tundra / Glacial landforms / Antarctica / Ice core / Transantarctic Mountains / Micropaleontology / Greenland ice sheet / West Antarctic Ice Sheet / Physical geography / Glaciology / Ice sheets

(Nanophanerophytic Montane Tundra) up near the treeline in this zone, where the climate is cold, wet, and windy, and soils are thin. Vegetation is confined to protected areas and thus covers less than 30 percent of the s

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Language: English - Date: 2011-05-06 17:59:58
15Igneous petrology / Granite / Metamorphic petrology / Granitoid / Pluton / Orogeny / Economic geology / Metamorphic rock / Kaapvaal craton / Geology / Petrology / Cratons

coal measures in southern Victoria Land. Sediments in the Triassic of southern Victoria Land, the central Transantarctic Mountains, and northern Victoria Land are in part volcaniclastic. This research was supported by Na

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Language: English - Date: 2011-05-06 05:35:57
16Volcanology / Geology / Amundsen Coast / La Gorce Mountains / Robison Glacier / Scott Glacier / Transantarctic Mountains / Mount Mooney / Ackerman Ridge / Geography of Antarctica / Queen Maud Mountains / Igneous petrology

Figure 1. Exposure of Unit Rg, showing meter-thick black glass layers interleaved with crystalline rhyolite. Lighter colored rock bordering the black glass is composed of devitrified glass. Figure 2. Cliff face exposure

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Language: English - Date: 2011-05-06 06:15:09
17Antarctica / Pliocene / Neogene / McMurdo Sound / Paleogene / Foraminifera / Diatom / Transantarctic Mountains / Oligocene / Physical geography / Geography of Antarctica / Miocene

In southern Victoria Land, the occurrences of primary radioactive minerals appear to be associated with large-scale, often concentric, circular structures which are clearly visible in the January 1986 field season when w

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Language: English - Date: 2011-05-06 18:01:26
18Geologic formations / Sedimentology / Clastic rock / Palynology / Antarctica / Transantarctic Mountains / Soil / Beacon sandstone / Geology / Physical geography / Paleontology

The wood impressions, the occurrence of fossilized logs up to 40 centimeters in diameter, and the presence of tree stumps caught up in the flows (Barrett, Elliot, and Lindsay 1986), all point to a climate suitable for th

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Language: English - Date: 2011-05-06 07:03:36
19Ross Dependency / Dufek Coast / Geologic formations / Fremouw Formation / Transantarctic Mountains / Beardmore Glacier / Mount Bowers / Antarctica / Wahl Glacier / Geography of Antarctica / Shackleton Coast / Physical geography

silts tone/mudstone and interbedded fine-grained sandstone. Internally, the coarser sandstone units consist of scour-bounded cosets of 0.2- to 0.5-meter thick trough cross-beds. In some cases, thin siltstone drapes have

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Language: English - Date: 2011-05-06 18:12:12
20Geology / Geologic formations / Fremouw Formation / Shackleton Coast / Antarctica / Trackway / William R. Hammer / Beardmore Glacier / Transantarctic Mountains / Physical geography / Geography of Antarctica / Dufek Coast

From what can be seen, however, it is apparent that the collection contains at least the top portion of a skull, over 20 vertebrae, numerous ribs, portions of at least eight limb bones including a humerus and part of a f

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Language: English - Date: 2011-05-06 20:35:19
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