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1. |
High electrical conductivity in upper mantle |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 36,
1982,
Page 769-769
Peter M. Bell,
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摘要:
In a joint study by geophysicists at two national laboratories, Los Alamos Scientific Laboratory and Lawrence Livermore National Laboratory, it was concluded that upper‐mantle rocks may have relatively high electrical conductivity, presumably because of small amounts of carbon situated along grain boundaries. This impurity conductivity is similar to values determined in the laboratory for low‐grade oil shale during pyrolysis. The residual char has electrical conductivity of 10−1to 10−2S/m, which is as much as 106greater than the conductivity of unpyrolized low‐grade oil shale (T. Shankland and A. Duba, Carbon‐enhanced electrical conductivity in rocks (abstract),Eos, 63, 438, 1982). This much is known; the implicat
ISSN:0002-8606
DOI:10.1029/EO063i036p00769-01
年代:1982
数据来源: WILEY
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2. |
Hydrothermal Processes at Seafloor Spreading Centers: Report on a NATO Advanced Research Institute |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 36,
1982,
Page 770-771
Peter A. Rona,
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摘要:
Evidence developed during the past 10 years indicating that seawater convects through oceanic crust driven by heat derived from the creation of lithosphere at the earth‐encircling oceanic ridge‐rift system of sea‐floor spreading centers has stimulated multiple lines of research. The research has profound implications for the earth's thermal regime, geochemical cycles, and mass balances of the elements; sustenance of biological communities; and concentration of metallic mineral deposits. The first workshop devoted to interdisciplinary consideration of this entire field was convened by a committee consisting of P.A. Rona (Chairman; NOAA, Miami), K. Böstrom (University of Stockholm), L. Laubier (CNEXO, Paris), and K. Smith (University of California, La Jolla) under the auspices of a NATO Advanced Research Institute held April 5–8, 1982, at the Department of Earth Sciences, University of Cambridge, England. The workshop assembled 75 scientists from 15 nations for presentations of the state of knowledge in this field that reflected the predominance of U.S. and French scientists in current research and for discussions that encouraged development of a wider base of scientific parti
ISSN:0002-8606
DOI:10.1029/EO063i036p00770-01
年代:1982
数据来源: WILEY
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3. |
Carbon Cycle Modelling |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 36,
1982,
Page 772-772
James C. G. Walker,
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摘要:
The Scientific Committee on Problems of the Environment (SCOPE) was established in 1969 by the International Council of Scientific Unions (ICSU) to assemble, review, and assess information on man‐made environmental changes and the effects of these changes on man. The work of this committee has already resulted in 17 books dealing with a wide range of environmental problems, with particular emphasis on the needs of developing countries. The global carbon cycle was described and analyzed in SCOPE Report 13, published in 1979. The volume under review, SCOPE Report 16, carries this analysis further. It presents the results of a workshop on carbon cycle modeling held at Scripps Institution of Oceanography in March 1979. The goal of the workshop was to assess the status of quantitative models of the global carbon cycle, to compare the predictions of different models, to develop methods for testing the reliability of these predictions, and to suggest how future models might be made more realisti
ISSN:0002-8606
DOI:10.1029/EO063i036p00772
年代:1982
数据来源: WILEY
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4. |
Robert R. Bennett memorial to GIFT fund |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 36,
1982,
Page 774-774
Anonymous,
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摘要:
The many personal friends, colleagues, and professional associates of the late Robert R. Bennett have joined in establishing a memorial in his honor. In recognition of his vigorous support of the American Geophysical Union, they have contributed in his memory to AGU's ‘Girding for Tomorrow’ program. His name will be inscribed on a list of honorees that will be displayed on a plaque in the AGU headquarters in Washington, D.C.Bennett, who received his M.S. in geology from the University of Nebraska in 1939, formerly directed groundwater research in the Water Resources Division of the U.S. Geological Survey. He was nationally and internationally recognized as an outstanding scientist in hydrogeology and groundwater hydrology. He was a pioneer authority in the development and application of analog‐ and digital‐computer simulations that aid in the analysis and prediction of the responses of highly complex aquifer systems to stresses imposed by man's development and utilization. He conducted basic research in petrophysics to define the fundamental principles governing permeability distribution and its directional characteristics and to elucidate the manner in which the permeability factor controls the movement of water in aquifer systems. He tested the applicability of the concepts he developed with prototype studies of the Ten‐sleep sandstone in the Big Horn Basin of Wyoming and of the Carrizo sandstone in the Coastal Plain
ISSN:0002-8606
DOI:10.1029/EO063i036p00774
年代:1982
数据来源: WILEY
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