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Ice shelf
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151	effects when the results of the stable oxygen isotopic measurements become available. R. Alley has studied the 50-meter core obtained by the Polar Ice Coring Office. He has found grain size and firn-structural variations Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 06:17:27 British Antarctic Territory Filchner-Ronne Ice Shelf West Antarctica Antarctica Ross Ice Shelf Ice shelf West Antarctic Ice Sheet Ice sheet Ellsworth Mountains Physical geography Geography of Antarctica Glaciology
152	made available by T. D. Foster, and J. G. Mitchell helped on the sampling cruise. Much of this study is part of a collaborative effort with S. E Ackley, and we thank him for his continuing support and involvement. Refer Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 05:35:18 Argentine Antarctica British Antarctic Territory Filchner-Ronne Ice Shelf Aquatic ecology International Weddell Sea Oceanographic Expeditions McMurdo Sound Plankton Krill McMurdo Station Physical geography Geography of Antarctica Antarctic region
153	Physical studies of firn and ice cores on the Siple Coast clearly are of interest in understanding processes occurring in and adjacent to ice streams and in interpreting geophysical data collected on the ground and from Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 15:41:47 Ice sheets Ice shelf Antarctica West Antarctic Ice Sheet Antarctic ice sheet Greenland ice sheet Ice core Ice calving Iceberg Physical geography Water ice Glaciology
154	sedimentary sequences lying seaward of these mountains. The source of the Mesozoic palynomorphs seems most likely to be in topographically low regions such as the northern end of the Thiel Trough and the Crary Trough, be Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 04:13:06 Argentine Antarctica British Antarctic Territory Antarctic region Till Thiel Trough Antarctica Weddell Sea Ice shelf Glacier Physical geography Filchner-Ronne Ice Shelf Glaciology
155	the central basin. Onboard examination indicated that both longer cores sampled a alternating sequence of terrigenous and diatomaceous muds and that organic content of the diatomaceous muds may be sufficient to allow rad Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 20:30:57 Earth Loubet Coast Oceanography Glacial landforms Magnetic susceptibility Magnetism Sediment Antarctica Muller Ice Shelf Physical geography Geology Sedimentology
156	across the shelf (see Dunbar, Dehn, and Leventer, Antarctic this issue). This distribution was first noted by Truesdale and Kellogg (1969), who attributed it to less extensive summer sea ice cover in the western Ross Sea Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 04:12:07 Physical geography Geology of Australia Petroleum Reflection seismology Passive margin Continental shelf Sedimentary rock Paleozoic Geology of the Falkland Islands Geology Plate tectonics Historical geology
157	rafted debris in the shallower core is evident from the radiographs. Because the supply of ice-rafted debris to the seabed should be independent of bottom topography, the variation in abundance of ice-rafted debris betwe Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 05:02:23 Physical oceanography Antarctic region Filchner-Ronne Ice Shelf Oceanography Weddell Gyre Ross Ice Shelf McMurdo Sound Ice shelf Ross Sea Physical geography Geography of Antarctica Oceanic gyres
158	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 Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 03:38:11 Glacier Ice sheet Antarctica Pensacola Mountains Dufek Massif Transantarctic Mountains Davis Valley Glacial erratic Ice shelf Physical geography Glaciology Ice age
159	Underlying the surface water all locations was the Weddell winter water. This layer reflected cooling and freezing which occurred during the preceding winter and had temperatures between about -1.5° and -1.7°C and a sa Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 18:01:20 Glaciology Physical oceanography Filchner-Ronne Ice Shelf Poles Mixed layer Polynya Weddell Sea Southern Ocean Primary production Physical geography Earth Aquatic ecology
160	also seen with the Polarstern 1986 data (Gordon and Huber in press). This is a strong indicator of the WDW heat which enters the mixed layer and is trapped below the insulating blanket of sea ice. The relationship of the Add to Reading List Source URL: s3.amazonaws.com Language: English - Date: 2011-05-06 21:06:22 Water Oceanic gyres Water masses Aquatic ecology Filchner-Ronne Ice Shelf Weddell Sea Bottom Water Weddell Gyre RV Polarstern Ocean gyre Oceanography Physical geography Physical oceanography

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