26 datasets

NASA Earthdata CMR2020 · collection

Modeling fluctuations in the extent of the West Antarctic Ice Sheet (WAIS) over time is a principal goal of the glaciological community. These models will provide a critical basis for predictions of future sea level change, and therefore this work great societal relevance. The mid-Pliocene time interval is of particular interest, as it is the most recent period in which global temperatures were wa

NASA Earthdata CMR2007 · collection

The ANDRILL Program is a multinational collaboration between the Antarctic programs of Germany, Italy, New Zealand and the United States to investigate the climate and tectonic history of Antarctica by recovering deep sediment and rock cores from the basins beneath floating shelves (e.g., McMurdo and Ross Ice Shelves) and adjacent sea ice that served as a drilling platform for the McMurdo Ice Shel

NASA Earthdata CMR2006 · collection

This report contains X-ray diffraction (XRD) analysis of mineralogy for 81 sediment samples from cores taken from three drill holes in the Los Angeles Basin in 2000-2001. We analyzed 26 samples from Pier F core, 29 from Pier C core, and 26 from the Webster core. These three sites provide an offshore-onshore record across the Southern California coastal zone. This report is designed to be a data re

NASA Earthdata CMR2005 · collection

This data set includes the results of the activities undertaken in the REVIZEE Program by the South Score/Benthos (Cabo de São Tomé, RJ Arroio Chuí, RS). The main objectives of this sub-program are the knowledge of biodiversity and the evaluation of the sustainable potential of the faunistic resources of the exclusive economic zone of the southeastern and southern regions of Brazil. The field coll

NASA Earthdata CMRcollection

The glacial and periglacial geology of the Miers and Taylor Valley was investigated. Special interests of the Miers and Taylor Valleys lie in their ice covered lakes and in the prolematic benches which run around the valleys - often called ice cored moraines. Cores were drilled in the ridges of rock detritus which lie on the ice and run inside the margin of Lake Miers to determine how the benches

NASA Earthdata CMRcollection

The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic disciplines. This data set consists of underway data from leg NBP0602A on the R/V Nathaniel B. Palmer. This leg started at Punta Arenas, Chile and ended at Punta Arenas, Chile.

NASA Earthdata CMRcollection

Microorganisms can colonize and modify any known environment due to their extremely wide and versatile metabolism and their capacity to transform the colonized substrate. Rocks from polar regions are colonized by free-living microorganisms and symbiotic associations such as lichens, constituting the most important, and sometimes the only, habitat for terrestrial life in those environments. The col

NASA Earthdata CMRcollection

The Dry Valleys Drilling Project (DVDP) was predominately an international project between scientists from New Zealand, the US, and Japan, which drilled 14 holes in the Dry Valleys of Antarctica (especially Lake Vanda, Don Juan Pond, Lake Vida, Lake Fryxell, Lake Bonney, New Harbour, Marble Point, Lake Leon and North Fork), on Ross Island (Cape Evans, Cape Royds, Cape Barne), McMurdo Sound, the Wa

NASA Earthdata CMRcollection

Descriptive data of core samples housed within the Core Research Center. The database contains information about drill hole locations, intervals of core availability, formation names, and geologic ages. CORE information sets also indicate availability of non-automated information including analyses, photographs, cuttings, and thin sections.

NASA Earthdata CMRcollection

The depositional and post depositional history of the Sirius Group tillite in the Dry Valleys area was investigated to resolve the ongoing debate as to whether the East Antarctic ice sheet formed 14 million years ago and retained its shape until present day (stabilists view) or if the nearly complete deglaciation of the East Antarctic Ice Sheet occurred 3 million years ago explaining the presence

NASA Earthdata CMRcollection

The Beacon Supergroup in the McMurdo Sound region is a flat lying continental sequence about 2000m thick and ranging in age from Early Devonian to Late Triassic (400 to 180 my BP). A polar wander curve for Antarctica for this 200 my period was attempted and oriented rock samples were collected for analysis. Oriented samples were collected at time intervals of no longer than 0.5 my, roughly every 3

NASA Earthdata CMRcollection

1. 40Ar/39Ar dates of minerals separated from pumiceous tephra layers in the core from Cape Roberts Project cores 1 and 2. 2. Major and trace element analyses of fine grain sediment samples from the Cape Roberts Project cores 1, 2 and 3. Background: The Cape Roberts Project is an international drilling project to obtain a series of cores from the sedimentary strata beneath the sea floor off Cape R

NASA Earthdata CMRcollection

Shallow coring of permafrost glacial sediments was completed of the Sirius Group at Allan Hills to provide stratigraphic cores for thickness and facies analysis and at Table Mountain for comparative age analysis by Be and N inventory of 3 different aged deposits (Sirius, Sirius regolith and debris flow). At Allan Hills, 2 holes and 8.2m of core were recovered in Trudge Valley. Coring did not revea

NASA Earthdata CMRcollection

In the 1980/81 and 1982/83 Antarctic field seasons, drilling and mapping were undertaken as part of a programme in the eastern Taylor Valley to investigate the late Cenozoic glacial history of the Taylor Valley and the surrounding environment. Previously, glacigenic deposits were cored in the eastern Taylor Valley in the 1974/75 season by the Dry Valleys Drilling Project (DVDP) and studies of the

NASA Earthdata CMRcollection

The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic disciplines. This data set consists of underway data from leg NBP0701 on the R/V Nathaniel B. Palmer. This leg started at Lyttelton, New Zealand and ended at Lyttelton, New Zealand.

NASA Earthdata CMRcollection

Since 1990, the joint Argentine (Instituto Antarctico Argentino, IAA), Japanese (Institute of Low Temperature Science, ILTS), and, recently, Italian (Third University of Rome) group "Criologia" has been concerned with research on cryological and geomorphological aspects in the northern Antarctic Peninsula area. Sorted nets, circles and stripes, stone pits, ice-wedge, seasonal frost crack polygons,

NASA Earthdata CMRcollection

It had been previously found that sampled rocks from Beacon sandstones at Mt Bastion, Beacon Heights and Table Mountain were very weakly magnetised and their magnetic direction had been reset at the time of the massive dolerite intrusions during the Jurassic period. The reson for this is not clear and further investigation were conducted. Only the red beds which occur at two periods within the Bea

NASA Earthdata CMRcollection

The National Petroleum Reserve in Alaska (NPRA) is located in the primitive wilderness of Alaska's North Slope. The U.S. Geological Survey (USGS) began some geological surveying in this area in the early 1900's, and the U.S. Navy began geological and geophysical surveys and drilling in 1945 to appraise the petroleum potential of the Reserve. Information on surveys prior to 1955 may be obtained fro

NASA Earthdata CMRcollection

Since 1990, the joint Argentine (Instituto Antarctico Argentino, IAA), Japanese (Institute of Low Temperature Science, ILTS), and, recently, Italian (Third University of Rome) group "Criologia" has been concerned with research on cryological and geomorphological aspects in the northern Antarctic Peninsula area. Sorted nets, circles and stripes, stone pits, ice-wedge, seasonal frost crack polygons,

NASA Earthdata CMRcollection

An evaluation of the use a portable drill for obtaining oriented paleomagnetic samples was undertaken on Ross Island. In all, 19 sites were sampled using the drill at Cape Crozier, Cape Bird, Cape Barne and Hut Point Peninsula. Oriented block samples were also collected for paleomagnetic determinations at Cape Barne, Cape Crozier and from the Fang Glacier, Mt Erebus. Detailed mapping and sampling

NASA Earthdata CMRcollection

Moraines in the Asgard Range were cored to look for buried soils and other evidence of ice movement at an earlier period in the history of the valley system. A posthole borer was used to drill holes to a depth of 1.5m and samples were collected. If buried soils had been present in this zone they would have been detected. Samples were analysed for weathering.

NASA Earthdata CMRcollection

Microorganisms can colonize and modify any known environment due to their extremely wide and versatile metabolism and their capacity to transform the colonized substrate. Rocks from polar regions are colonized by free-living microorganisms and symbiotic associations such as lichens, constituting the most important, and sometimes the only, habitat for terrestrial life in those environments. The col

NASA Earthdata CMRcollection

A collection of paleomagnetic rock samples including Jurassic volcanics and dolerites, Beacon Supergroup, Devonian-Carboniferous volcanics, Paleozoic Granitoids and Cambrian Volcanics and sediments were collected from the Daniels Range in North Victoria Land. Geological mapping was also conducted in the areas where samples were collected. The aim was to i) establish a polar wander path for the vol

NASA Earthdata CMRcollection

This set of data describes Ferrar Dolerite rock samples collected during the 2002-2003 Antarctic field season from the Upper Taylor Glacier and Convoy Range regions of southern Victoria Land. The rock collection includes samples from eighteen sites (outcrops along the escarpment extending from Mt. Feather to Windy Gully, Rector Ridge, East Beacon, Pearse Valley, Pandoras Spire, Fris Hills, Mt. Gra

NASA Earthdata CMRcollection

Three holes were drilled into frozen sediments around Lake Fryxell. The first was 4ft in depth in frozen silts approx 50m NW of the Fryxell Hut. The second hole was 30m east of the first hole and a depth of 16ft. A third hole was drilled approximately 1km east of the second hole to a depth of 46ft. The cores were analysed and the lacustre carbonates within were dated. This was the first time that