摘要:

Proposed research drilling in the Creede mining district will constrain relations between epithermal veins and the deeper thermal, fluid flow, and volcanic structural environment. Major targets include a deep inferred heat source in the form of a concealed intrusion and possibly associated stacked porphyry‐type mineralization; thermal, chemical, and hydrologic evolution of the fossil hydrothermal system in comparison with active geothermal environments; and temporal, structural, and petrologic relations between the mineralization and the hosting silicic caldera cluste

ISSN:0002-8606    

DOI:10.1029/EO068i013p00177

年代:1987

数据来源: WILEY

摘要:

The Institut de Physique du Globe de Paris (IPG) was founded in 1921. Geophysics at that time consisted mostly of geomagnetism and the still‐young seismology. The physical properties of earth materials appeared only as material constants in equations, and the fact that they were mostly unknown was not a cause for inordinate worry. Geochemistry joined the IPG program in the 1960s. When Claude Allegre became director of the institute in 1976, he saw the need for the study of the properties of minerals and rocks in their own right, as well as for the application of the recent advances in materials science to earth sciences. He then asked Jean‐Paul Poirier to start a group for physics of geomaterials at IPG. Nine years later, the laboratory has become a recognized component of IPG, with interests and collaborations both in geophysics and geochemistry. The group consists of Poirier's own team (about a dozen people, including the graduate students), along with the growing teams of newcomers Yan Bottinga and Pascal Ric

ISSN:0002-8606    

DOI:10.1029/EO068i013p00178

年代:1987

数据来源: WILEY

摘要:

Several positive factors have generated significant momentum and research activities in mineral physics: the interdisciplinary nature of the field, newly aroused interest through scientific communications at meetings and symposia, advancements in high‐pressure/high‐temperature instrumentation, and above all, commitments by individual scientists and institutions.In the last 6 months, a number of themes in mineral physics were highlighted at the International Mineralogical Association meeting at Stanford University (Stanford, Calif., July 13–18, 1986), at the conference on “Quantum Theory and Experiment Applied to Solids” at University of Maryland (College Park, Md.; organized by J. A. Tossell and G.V. Gibbs), and at the 1986 AGU Fall Meeting (San Francisco, Calif., December 8–12, 1986). The following report discusses the highlights of the recent AGU m

ISSN:0002-8606    

DOI:10.1029/EO068i013p00179-01

年代:1987

数据来源: WILEY

摘要:

Mineral Physics Committee members for the period July 1, 1986, to J ne 30, 1988, have been announced. They are Murli H. Manghnani (Hawaii Institute of Geophysics, Honolulu), and Orson L. Anderson (University of California, Los Angeles), Thomas J. Ahrens (California Institute of Technology, Pasadena, Calif.), Subir K. Banerjee (University of Minnesota, Minneapolis), William A. Bassett (Cornell University, Ithaca, N.Y.), Gordon E. Brown, Jr. (Stanford University, Stanford, Calif.), Michael Brown (University of Washington, Seattle), Robert M. Hazen (Geophysical Laboratory, Washington, D.C.), Raymond F. Jeanloz (University of California, Berkeley), Robert C. Liebermann (State University of New York (SUNY),(Stony Brook), Alexandra Navrotsky (Princeton University, Princeton, N.J.), Robert N. Schock (Lawrence Livermore National Laboratory, Livermore, Calif.), and Donald J. Weidner (SUNY Stony Brook).

ISSN:0002-8606    

DOI:10.1029/EO068i013p00180-01

年代:1987

数据来源: WILEY

摘要:

The last decade has witnessed the emergence of a new emphasis on processes that influence the global chemical environment, and AGU's newest journal will aim “to attract the best papers and, importantly, stimulate research in this area,” according to James J. McCarthy, editor ofGlobal Biogeochemical Cycles. The journal's first issue just came out (see page 1

ISSN:0002-8606    

DOI:10.1029/EO068i013p00189

年代:1987

数据来源: WILEY

摘要:

Recently, 14 AGU members who joined the Union in 1937 received their recognition pins for 50 years of membership in the Union. They join the distinguished ranks of the 50‐ year AGU members, who are listed below by the year that they joined:1937 A.B. Bryan, Leonard B. Corwin, Tate Dalrymple, Richard H. Fleming, Harry L. Frauenthal, Konrad B. Krauskopf, J. Stuart Meyers, Brian O'Brien, Joseph F. Poland, Edward J. Rutter, Noel H. Stearn, John P. Tully, Victor Vacquier, G.H. Westby, and Harvey O. Westb

ISSN:0002-8606    

DOI:10.1029/EO068i013p00190

年代:1987

数据来源: WILEY