Download or read book Geology and Seismic Stratigraphy of the Antarctic Margin written by Alan K. Cooper and published by American Geophysical Union. This book was released on 1997-01-23 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 71. The Antarctic Ice Sheet has greatly affected global climate, sea level, ocean circulation, and southern hemisphere biota during Cenozoic times. Much of our understanding of the evolution of the ice sheet has been inferred from isotopic studies on distant deep-ocean sediments, because few Cenozoic rocks are exposed on the Antarctic continent. Yet, large differences occur between past ice volumes inferred from isotopic studies and those inferred from low-latitude sea-level variation. The massive quantities of glacially transported terrigenous sediments that lie beneath the Antarctic continental margin provide an additional, more direct record of the inferred ice sheet fluctuations. Volume 68 addresses the history of ice sheet fluctuations as recorded by geological and geophysical investigations of selected areas of the Antarctic continental margin. As described below, the volume gives data and results from on-going research by a major multinational project directed toward better understanding the impact of Antarctic Ice Sheet fluctuations on global sea levels and climates.

Download or read book Antarctic and Subantarctic Pycnogonida written by C. Allan Child and published by American Geophysical Union. This book was released on 1995-01-09 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 69. The Antarctic Research Series provides for the presentation of detailed scientific research results from Antarctica, particularly the results of the United States Antarctic Research Program, including monographs and long manuscripts. The series is designed to make the results of Antarctic fieldwork available. The Antarctic Research Series encourages the collection of papers on specific geographic areas within Antarctica. In addition, many volumes focus on particular disciplines, including marine biology, oceanology, meteorology, upper atmosphere physics, terrestrial biology, geology, glaciology, human adaptability, engineering, and environmental protection.

Download or read book Biology of the Antarctic Seas XVII written by Louis S. Kornicker and published by . This book was released on 1986 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of the Antarctic Seas XIII written by Janis Avery Speel and published by . This book was released on 1983 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of the Antarctic Seas XXI written by Gordon R. Wilson and published by American Geophysical Union. This book was released on 1991-01-08 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty peer-reviewed papers form a workshop in Huntsville, Alabama, October 1989, explore both the very large and the very small models of plasma in the Earth's atmosphere as part of the quest to understand the magnetosphere and the ionosphere as a coupled global system. No index. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Biology of the Antarctic Seas IV written by George A. Llano and published by American Geophysical Union. This book was released on 1971 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 17. Of the volumes currently available in the Antarctic Research Series, this volume is the fourth dealing with the biology of the antarctic seas. These collected papers comprise the results of original investigations, 11 of which are concerned mainly with the identification and distribution of marine plants and animals. In the first of these papers Stewart Springer gives a systematic appraisal of the five species of elasmobranch Rajidae from Antarctica, of which one represents a new and unique species. Heretofore one of the peculiarities of the antarctic ichthyological fauna has been the absence of sharks. In this very significant contribution, the author establishes the most southerly record for any member of the elasmobranchs. The second paper, by Patricia Kott, amplifies our systematic knowledge of the tunicates of the South Atlantic, South Pacific, and Indian oceans. It extends her monograph published as volume 13 of the Research Series under the title of Antarctic Ascidiacea and is based on collections made in the Antarctic through 1967; two new species are included. Additions and corrections to volume 13 are appended to this paper. John C. Markham reports on several lower chordates of the genus Cephalodiscus and discusses the systematics and distribution of the five species known from the Antarctic. The Deep Freeze materials examined in the course of this study were obtained through the U.S. Navy Hydrographic Office oceanographers from icebreakers assigned to task force 43 prior to and after the 1955–1959 International Geophysical Year and precede the National Science Foundation sponsored research now being conducted by the USNS Eltanin and the R/V Hero under the U.S. Antarctic Research Program.

Download or read book Biology of the Antarctic Seas XIX written by Louis S. Kornicker and published by American Geophysical Union. This book was released on 1988 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 47. A systematic study was made of the calanoid copepod genus Haloptilus found in Isaacs-Kidd midwater trawl and Bongo plankton Subantarctic seas and adjacent waters. A total of 799 adult copepods representing eight species of Haloptilus were found, of which only one species (H. ocellatus) was truly endemic to the Antarctic, occurring exclusively in waters south of the Antarctic Convergence. Three other species that were also found in the Antarctic were H. fons, H. oxycephalus, and H. longicirrus, of which the last is a new record and the first two are known as more or less cosmopolitan species. Four warmwater species found at stations just north to the Subantarctic were H. spiniceps, H. ornatus, H. longicornis, and H. paralongicirrus, of which the last is a new record. All species are redefined with pertinent descriptions and illustrations. A key is presented for identification of the species.

Download or read book The West Antarctic Ice Sheet written by and published by American Geophysical Union. This book was released on 1998 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of the Antarctic Seas II written by Llano and published by American Geophysical Union. This book was released on 1971 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Antarctic Paleoenvironment written by and published by . This book was released on 1993 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers based on work presented at a conference held at the University of California, Santa Barbara, August 28-31 1991, entitled 'The Role of the Southern Ocean and Antarctica in Global Change : an Ocean Drilling Perspective.' Papers deal with paleoenvironmental data from the Antarctic, including geology, climate, fossils, sediments and the eustatic record.

Download or read book Biology of the Antarctic Seas III written by Waldo Lasalle Schmitt and published by American Geophysical Union. This book was released on 1967 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Antarctic Paleoenvironment written by James P. Kennett and published by American Geophysical Union. This book was released on 1992-04-08 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers based on work presented at a conference held at the University of California, Santa Barbara, August 28-31 1991, entitled 'The Role of the Southern Ocean and Antarctica in Global Change : an Ocean Drilling Perspective.' Papers deal with paleoenvironmental data from the Antarctic, including geology, climate, fossils, sediments and the eustatic record.

Download or read book Antarctic Siphonophores From Plankton Samples of the United States Antarctic Research Program written by Angeles Alvarino and published by American Geophysical Union. This book was released on 1990 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 49. The distribution of Siphonophora of the Antarctic, Subantarctic, and adjacent regions of the Pacific and Atlantic Oceans is described. Specimens for this study were obtained during the United States Antarctic Research Program from USNS Eltanin cruises 3-5, 8-23, 25-28, 35, and 38 during spring, summer, fall, and winter. Samples were collected from 1962 to 1969, using open-closing and nonclosing plankton nets. Information is compiled on horizontal distributions of siphonophores in the South Atlantic Ocean west of 0°. Illustrations of the species, and maps of distribution at the three bathymetric levels, are also included. In addition, data on Eltanin cruise 30 are presented, covering mainly the Pacific tropical region during the summer, with some stations below the equator (austral winter). Vertical distributions of each species are discussed for the three bathymetric zones: epipelagic (200-0 m), mesopelagic (1000-200 m), and bathypelagic (below 1000 m). Life stages and seasonal variations are also considered. Eighty species of Siphonophora were identified in these collections. Among these, and described elsewhere, were five new species: Lensia eltanin, L. eugenioi, L. landrumae, Heteropyramis alcala, and Thalassophyes ferrarii. The eudoxid stages of L. lelouveteau and L. reticulata were also discovered. In addition, the following rare Siphonophora species were collected: Halistemma cupulifera, Desmophyes annectens, Lilyopsis rosea, Eudoxia macra, Lensia achilles, L. baryi, L. exeter, L. grimaldii, L. hostile, Nectocarmen antonioi, and Clausophyes galeata. The most common species of the Antarctic Subantarctic region during the four seasons was Dimophyes arctica. The eudoxid stages of Chelophyes appendiculata, Diphyes dispar, Diphyopsis mitra, Clausophyes ovata, and Heteropyramis maculata were abundant.

Download or read book Copepoda Developments in Ecology Biology and Systematics written by Rubens M. Lopes and published by Springer Science & Business Media. This book was released on 2001-12-31 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Seventh International Conference on Copepoda, held in Curitiba, Brazil, 25-31 July 1999

Download or read book Biology of the Antarctic Seas XXII written by Stephen Cairns and published by American Geophysical Union. This book was released on 1992 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 58. A systematic study was made of the calanoid copepod genus Euaugaptilus found in Isaacs-Kidd midwater trawl and Bongo plankton net samples taken in Antarctic and Subantarctic waters. A total of 303 adult copepods representing 14 species of Euaugaptilus were found, including five new species (E. hadrocephalus, E. perasetosus, E. aliquantus, E. brevirostratus, and E. austrinus) and seven new records (E. maxillaris, E. nodifrons, E. bullifer, E. gibbus, E. angustus, E. laticeps, and E. oblongus). Euaugaptilus antarcticus (Wolfenden) is restored from synonymy. All species are characterized with pertinent descriptions and illustrations. Keys are presented for identification of the species.

Download or read book Fossil Scleractinian Corals from James Ross Basin Antarctica written by Filkorn and published by American Geophysical Union. This book was released on 1994 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions to Antarctic Research II written by David H. Elliot and published by American Geophysical Union. This book was released on 1991-01-08 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 53. The Cold Deserts of Antarctica and the Polar Deserts of the High Arctic, the latter of which includes the Queen Elizabeth Islands, northern Greenland, Svalbard, Franz Josef Land, Severnaya Zemlya, and a few other localities, have cryogenic soils with desertlike features. Both sectors have soils with a mineral appearance, desert pavement, small to nonexistent organic components, and low ground temperatures. Both are underlain by permafrost and are subject to cryogenic processes. Whereas virtually all of the soils in Antarctica are well drained, in the High Arctic the soil pattern consists of a mosaic of Polar Desert soils, as well as various hydric varieties including shallow bogs. In the Polar Deserts the landforms, especially the surficial deposits, are much younger chronologically than their Cold Desert counterparts. Polar Desert soils generally have a more acid reaction than Cold Desert soils. Moisture regimes are quite different in the two sectors. Cold Desert soils have a dry condition even down to the frost table. Polar Desert soils are moist during early summer thaw, however, and are subjected to occasional summer rainfall and probably receive some moisture from condensation; the zone above the receding frost table is usually quite wet. The humus component in Cold Desert soils is usually nil, but in the Polar Desert soils it is commonly as much as 1% to 2% or higher, especially in medium?]textured soils. Whether there are enough distinct differences between the two soils to recognize two different categories remains somewhat moot. After equating all information, however, one appears to be justified in tentatively recognizing two distinct soils.