Dufek Coast

Results: 39



#Item
1Geological history of Earth / Phanerozoic / Cenozoic / Geological periods / Ashworth Glacier / Dufek Coast / Quaternary / International Union for Quaternary Research / Late Pleistocene / Ashworth / Neogene / Russell Coope

ALLAN C. ASHWORTH Research Professor and NDSU Distinguished Professor Emeritus President of the International Union for Quaternary Research CONTACT INFORMATION Department of Geosciences Stevens Hall, 1340 Bolley Drive

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Source URL: www.ndsu.edu

Language: English - Date: 2015-12-07 16:34:21
2Shackleton Coast / Dufek Coast / Beardmore Glacier / Transantarctic Mountains / ANDRILL / McMurdo Sound / Tim Naish / Scott Base / Imperial Trans-Antarctic Expedition / Geography of Antarctica / Physical geography / Antarctica

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Source URL: antarcticanz.govt.nz

Language: English - Date: 2013-08-06 00:53:12
3Geology / Dufek Coast / Fremouw Formation / Paleozoology / Lystrosaurus / Dicynodon / Triassic / Lystrosauridae / Synapsid / Dicynodonts / Physical geography / Geologic formations

a vitric tuff (Barrett, 1969) and by tuffaceous claystone, which is common in the middle and upper , members of the formation. The composition of the Fremouw sandstone varies both vertically and laterally, reflecting cha

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Source URL: s3.amazonaws.com

Language: English - Date: 2011-05-06 03:36:53
4Fremouw Formation / Skaar Ridge / Glossopteris / Osmundaceae / Plant / Cycad / Permian / Spermatophyte / Osmunda / Geologic time scale / Phanerozoic / Dufek Coast

floodplain deposits laterally suggests a scenario in which a forested, swampy island was undercut and destroyed during flooding. Once buried, the fossil peat was quickly silicified before compression could take place, pr

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Language: English - Date: 2011-05-06 18:10:13
5Geologic formations / Geology / Fremouw Formation / Shackleton Coast / Cynognathus / Antarctica / Beaufort Group / Triassic / Beardmore Glacier / Physical geography / Geography of Antarctica / Dufek Coast

fern possesses a mesarch, amphiphloic siphonostele embedded in a parenchymatous cortex. The pith is often scierified. In these stems there is relatively little support tissue. Only the vascular strand and thickened cells

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Language: English - Date: 2011-05-06 15:38:50
6Ross 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
7Geology / 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
8Sedimentology / Sulfate minerals / Dufek Coast / Fremouw Formation / Gypsum / Dune / Sandstone / Sediment / Kennar Valley / Geology / Petrology / Sedimentary rocks

Orthoquartzite (Farnell, West Beacon, and Brawhm Sandstones), Arena Sandstone, Altar Mountain Formation (including Ashtray Sandstone Member), New Mountain Sandstone (Terra Cotta Siltstone and Windy Gully Sandstone member

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Source URL: s3.amazonaws.com

Language: English - Date: 2011-05-06 06:14:48
9Shackleton Coast / Geologic formations / Dufek Coast / Fremouw Formation / Triassic / Cycad / Permian / Antarctica / Skaar Ridge / Physical geography / Geology / Geography of Antarctica

preserved and abundant here. Jaws and partial skulls of synapsids also occur, including a fairly large theriodont. Little of the material was well exposed in the field so more specific taxonomic determinations are diffic

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Language: English - Date: 2011-05-06 18:09:21
10Geologic 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
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