|
1. |
Development in phase equilibria models for igneous systems |
|
Eos, Transactions American Geophysical Union,
Volume 68,
Issue 9,
1987,
Page 121-127
R. L. Nielsen,
A. F. Glazner,
D. B. Baker,
H. Nekvasil,
J. I. Russel,
Preview
|
PDF (579KB)
|
|
摘要:
Methods for simulation of natural differentiation processes have been an object of study for most of the history of igneous petrology. With the advent of quantitative geochemical data on experimental systems, the models used by petrologists have moved progressively from graphical (i.e., phase diagrams) to numerical methods [e.g.,Roeder and Emslie, 1970;Stormer and Nicholls, 1978]. Even developments in graphical methods have entailed increased complexity in the projection of compositional data [e.g.,Grove et al., 1982]. This article summarizes current developments in some of the most recent nongraphical models of phase equilibria. The most critical component of these models is the method used to calculate the melt component activities.
ISSN:0002-8606
DOI:10.1029/EO068i009p00121-01
年代:1987
数据来源: WILEY
|
2. |
Long‐range side scan sonar and geophysical survey of the Aleutian Basin |
|
Eos, Transactions American Geophysical Union,
Volume 68,
Issue 9,
1987,
Page 122-123
P. R. Carlson,
A. K. Cooper,,
J. V. Gardner,
H. A. Karl,
M. S. Marlow,
A. J. Stevenson,
Q. Huggett,
N. H. Kenyon,
L. M. Parson,
Preview
|
PDF (1618KB)
|
|
摘要:
In 1983, President Ronald Reagan established the Exclusive Economic Zone, an area of 3.9 billion acres (∼1.6 billion hectares) that gives the United States exclusive rights to energy and mineral resources on and under the seafloor for a distance of 200 nautical miles (∼370 km) from its coastline and in its territorial seas [Rowland et al., 1983]. The U.S. Geological Survey established a program, EEZ‐Scan, in spring 1984 to map this new undersea territory [Gardner, 1984; EEZ‐Scan Group, 1985]. The results of the first field season of mapping the EEZ off the conterminous west coast of the United States have been published as an atlas [EEZ‐Scan 84 Scientific Staff, 1986] that is the first volume of
ISSN:0002-8606
DOI:10.1029/EO068i009p00122
年代:1987
数据来源: WILEY
|
3. |
Secchi disc visibility world record shattered |
|
Eos, Transactions American Geophysical Union,
Volume 68,
Issue 9,
1987,
Page 123-123
W. W. C. Gieskes,
C. Veth,
A. Woehrmann,
M. Graefe,
Preview
|
PDF (1500KB)
|
|
摘要:
On leg Ant (for “antarctic”) V/3 of the Winter Weddell Sea Project (WWSP‐86), during autumn 1986, we encountered extremely clear water in a coastal polynya of the eastern Weddell Sea. On October 13, 1986, a Secchi disc 1 foot in diameter was lowered at 14.45 UT at 71°23.63′S, 15°02.52′W. The disc was still seen by all four of us when 79 m of line was paid out; at 80 m, the disc disappeared from sight. The weather was calm and sunny, and the surface of the water was undisturbed At stations close to the Riiser Larsen Ice Shelf, more to the south, Secchi disc visibilities close to 70 m were recorded thoughout October a
ISSN:0002-8606
DOI:10.1029/EO068i009p00123-01
年代:1987
数据来源: WILEY
|
4. |
Fram Strait: Exchange and dynamics |
|
Eos, Transactions American Geophysical Union,
Volume 68,
Issue 9,
1987,
Page 124-125
K. Aagaard,
R. Reed,
Preview
|
PDF (283KB)
|
|
摘要:
During November 18–20, 1986, a workshop entitled “Fram Strait: Exchange and Dynamics” was held at the National Oceanic and Atmospheric Administration (NOAA) Pacific Marine Environmental Laboratory in Seattle, Wash. A total of 27 talks were presented, and approximately 50 scientists attended. The principal issues addressed were the role of exchanges through Fram Strait in the regional and large‐scale circulation and geochemical cycling and the factors driving and controlling flow through the strait. Fram Strait, between Greenland and Spitsbergen, is the deep passage between the Arctic Ocean and the North Atlantic extension in the Norwegian and Greenland seas (Fi
ISSN:0002-8606
DOI:10.1029/EO068i009p00124
年代:1987
数据来源: WILEY
|
5. |
Polar Research Fellowship offered |
|
Eos, Transactions American Geophysical Union,
Volume 68,
Issue 9,
1987,
Page 125-125
Anonymous,
Preview
|
PDF (146KB)
|
|
摘要:
A postdoctoral fellowship program for researchers working on arctic and antarctic research problems is being offered by the Institute of Polar Studies of the Ohio State University (Columbus). The purpose of the Byrd Fellowship program is to provide fellowships at Ohio State for men and women with distinguished academic backgrounds who are pursuing advanced research in any area of this field.The 1‐year postdoctoral award will include a stipend of $24,000 and a research and travel allowance of $3000. The Fellow should have received a Ph.D. degree within 5 years of selection for the program. Selection will be made by a committee consisting of the director of the Institute of Polar Studies and other members from the university and polar studies communitie
ISSN:0002-8606
DOI:10.1029/EO068i009p00125-05
年代:1987
数据来源: WILEY
|
6. |
Fulbright Grants available |
|
Eos, Transactions American Geophysical Union,
Volume 68,
Issue 9,
1987,
Page 126-126
Anonymous,
Preview
|
PDF (146KB)
|
|
摘要:
The Council for International Exchange of Scholars (CIES) is accepting applications for the 1988–1989 Fulbright Scholar Awards. More than 300 grants in research and 700 grants in university lecturing are available for periods ranging from 3 months to a full academic year, with openings in more than 100 countries and some opportunities for research in more than one country.Fulbright awards are granted in virtually all disciplines. Scholars of all academic ranks, including retired faculty and independent scholars, are eligible to apply. Fulbright scholars must be U.S. citizens with a Ph.D. or comparable professional qualifications, have university or college teaching experience, and for selected assignments, be proficient in a foreign language. There is no longer a limit of two Fulbright grants to a single schola
ISSN:0002-8606
DOI:10.1029/EO068i009p00126-01
年代:1987
数据来源: WILEY
|
|