GEOMORPHOLOGY AND SEDIMENTOLOGY OF UNION GLACIER AREA, ELLSWORTH MOUNTAINS, OCCIDENTAL ANTARCTICA
نویسندگان
چکیده
منابع مشابه
Early cretaceous uplift in the ellsworth mountains of west antarctica.
Apatite fission-track analysis of samples covering a 4.2-kilometer vertical section from the western flank of Vinson Massif, Antarctica's highest mountain, indicates that the Ellsworth Mountains were uplifted by 4 kilometers or more during the Early Cretaceous following the initial separation of East and West Gondwana and accompanying the opening of the Weddell Sea. Relief of at least 1.8 kilom...
متن کاملGeomorphology and Sedimentology of the South Western Planning Area of Australia
s. Bureau of Mineral Resources, Geology and Geophysics, Canberra,Australia, pp. 65.Collins, L.B., 1988. Sediments and history of the Rottnest Shelf, southwest Australia: aswell-dominated, non-tropical carbonate margin. Sedimentary Geology, 60, 15-49.Collins, L.B., Wyrwoll, K.-H. and France, R.E., 1991. The Abrolhos carbonate platforms:geological evolution and Leeuwin Current...
متن کاملDeglacial history of the Pensacola Mountains, Antarctica from glacial geomorphology and cosmogenic nuclide surface exposure dating
The retreat history of the Antarctic Ice Sheet is important for understanding rapid deglaciation, as well as to constrain numerical ice sheet models and ice loading models required for glacial isostatic adjustment modelling. There is particular debate about the extent of grounded ice in the Weddell Sea embayment at the Last Glacial Maximum, and its subsequent deglacial history. Here we provide ...
متن کاملUV Irradiance and Albedo at Union Glacier Camp (Antarctica): A Case Study
We report on the first spectral measurements of ultraviolet (UV) irradiance and the albedo at a Camp located in the southern Ellsworth Mountains on the broad expanse of Union Glacier (700 m altitude, 79° 46' S; 82° 52'W); about 1,000 km from the South Pole. The measurements were carried out by using a double monochromator-based spectroradiometer during a campaign (in December 2012) meant to wei...
متن کاملFlow dynamics of Byrd Glacier, East Antarctica
Force-balance calculations on Byrd Glacier, East Antarctica, reveal large spatial variations in the along-flow component of driving stress with corresponding sticky spots that are stationary over time. On the large scale, flow resistance is partitioned between basal (�80%) and lateral (�20%) drag. Ice flow is due mostly to basal sliding and concentrated vertical shear in the basal ice layers, i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Revista Brasileira de Geomorfologia
سال: 2017
ISSN: 2236-5664,1519-1540
DOI: 10.20502/rbg.v18i3.1246