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1. |
NASA revises shuttle schedule |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 37,
1988,
Page 849-849
Lisa A. Wainger,
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PDF (159KB)
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摘要:
The new schedule for Space Shuttle missions and expendable launch vehicles (ELV's) calls for a 7‐month delay in sending up the Hubble Space Telescope. NASA was forced to put off launching the telescope until February 1990 to keep the Magellan and Galileo missions within their narrow launch windows. The first post‐Challenger shuttle launch is now scheduled for late this month. Discovery's most recent delays were due to a hydrogen leak discovered July 29 that has still not been corrected and an engine valve malfunction during an August 4 test f
ISSN:0002-8606
DOI:10.1029/88EO01105
年代:1988
数据来源: WILEY
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2. |
Tides, Surges and Mean Sea‐Level, A Handbook for Engineers and Scientists |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 37,
1988,
Page 850-850
Harold O. Mofjeld,
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PDF (305KB)
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摘要:
The past 20 years have seen a major increase in the measurement, analysis, and modeling of sea level phenomena. Whether the topic is the measurement of long‐term climatic changes in sea level, mapping the global distribution of tides with satellites, or developing high‐resolution storm surge models, there is a large technical literature on these and other sea level topics that is very useful, but often difficult for the nonspecialist or student to understand and apply. While previous texts and references, such as those byDefant[1961],Neumann and Pearson[1966], and Dietrich et al. [1980]provide an introduction to the classic description of tides a n d other sea level phenomena, none of these provides an introduction to the important advances that have occurred during this recent per
ISSN:0002-8606
DOI:10.1029/88EO01109
年代:1988
数据来源: WILEY
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3. |
Origins of Igneous Layering |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 37,
1988,
Page 851-851
Bruce Marsh,
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PDF (132KB)
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摘要:
Anyone who has ever seen a photo of a layered intrusion, let alone visited one first hand, or even seen a thin section from one, cannot help but be impressed by the stunning record of crystal growth and deposition. Such bodies stand as majestic monuments of undeniable evidence that intricate magmatic processes exist, processes that couple crystallization, convection, and crystal sorting to form rocks so highly ordered and beautiful that they are a wonder to behold. These are the altars to which petrologists must carry their conceived petrologic processes for approval.Although significant in number, the best layered intrusions seem to be found almost always in remote places. Their names, Bushveld, Muskox, Kiglapait, Stillwater, Duke Island, Skaergaard, Rhum, ring through igneous petrology almost as historic military battles (Saratoga, Antietam, Bull Run, Manassas, Gettysburg) do through American history. People who have worked on such bodies are almost folk heros: Wager, Deer, Brown, Jackson, Hess, Irvine, McBirney, Morse; these names are petrologic household words. Yet with all this fanfare and reverence, layered instrusions are nearly thought of as period pieces, extreme examples of what can happen, but not generally what does. This is now all changing with the increasing realization that these bodies are perhaps highly representative of all magmatic bodies. They are simply more dynamically complete, containing more of the full range of interactions, and of course, exposing a more complete record. They are one end of a spectrum containing lava flows, lava lakes, large sills, plutons, and layered intrusions. This book uniquely covers this range with an abundance of first‐hand field observations and a good dose of process conceptualization, magma physics, and crystal growth kinetic
ISSN:0002-8606
DOI:10.1029/88EO01112
年代:1988
数据来源: WILEY
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