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Geophysics at Katmai: Geophysical expedition to Novarupta Volcano, Katmai National Park, Alaska |
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Eos, Transactions American Geophysical Union,
Volume 71,
Issue 22,
1990,
Page 733-735
J. C. Eichelberger,
S. Ballard,
C. R. Carrigan,
A. Goodliffe,
W. Hildreth,
E. Iwatsubo,
P. W. Kasameyer,
T. E. C. Keith,
J. Kienle,
J. J. Papike,
D. D. Pollard,
D. B. Stone,
P. C. Wallmann,
P. L. Ward,
M. Wilt,
M. E. Yount,
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摘要:
The great eruption of 1912 in the Aleutian Range of Alaska (Figure 1) is exceptional for both its size and relative simplicity. It was the largest eruption of this century and the largest rhyolitic outburst in almost 20 centuries. The 60‐hour, 30‐km3(ejecta volume) eruption produced extensive fallout deposits, an ash‐flow sheet that gave rise to the Valley of Ten Thousand Smokes, and the 3‐km‐diameter Mt. Katmai caldera. Because magma reached the surface through uniform nonvolcanic basement and the vent underwent little or no collapse (unusual for such a large event), the site provides an ideal target for surface geophysical and subsurface coring exploration of structures and conditions produced by explosive volcanism [Panel on Volcanic Studies at Katmai, 1989]. A project to investigate upper crustal magmatic processes at Katmai is part of the U.S. Continental Scientific Drilling Program [Eichelberger and Hildreth, 1986]. The surface studies phase of this project was undertaken last summer and preliminary results are now
ISSN:0002-8606
DOI:10.1029/EO071i022p00733
年代:1990
数据来源: WILEY
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Business grants |
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Eos, Transactions American Geophysical Union,
Volume 71,
Issue 22,
1990,
Page 735-735
Anonymous,
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PDF (149KB)
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摘要:
Twelve small businesses who are developing equipment and computer programs for geophysics have won Small Business Innovative Research (SBIR) grants from the National Science Foundation for their 1989 proposals. The SBIR program was set up to encourage the private sector to undertake costly, advanced experimental work that has potential for great benefit.The geophysical research projects are a long‐path intracavity laser spectrometer for measuring atmospheric trace gases, optimizing a local weather forecast model, a new platform for high‐altitude atmospheric science, an advanced density logging tool, a deep‐Earth sampling system, superconducting seismometers, a phased‐array Doppler current profiler, monitoring mesoscale surface features of the ocean through automated analysis, krypton‐81 dating in polar ice samples, discrete stochastic modeling of thunderstorm winds, a layered soil‐synthetic liner base system to isolate buildings from earthquakes, and a low‐cost continuous on‐line organic‐content monitor for water‐qu
ISSN:0002-8606
DOI:10.1029/EO071i022p00735-01
年代:1990
数据来源: WILEY
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