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| 1. |
Seismic and Petrophysical Relationships from UK Continental Shelf Rocks at Elevated Pressures |
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Marine Georesources & Geotechnology,
Volume 18,
Issue 2,
2000,
Page 119-140
Solomon Assefa,
CliveMc Cann,
Jeremy Sothcott,
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PDF (2130KB)
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摘要:
There are few published seismic (P- and S-waves) properties for seafloor bedrocks. At low pressures (1 to 10 MPa), velocities and attenuations are determined mainly by open microcracks. At higher pressures, the microcracks close, and the velocities and attenuations depend primarily on the matrix porosity. We have investigated both the relationships between the acoustic, petrophysical, and geological properties of the rocks at 40 MPa pressure and the effect of microcracks on the acoustic properties at 10 MPa pressure. In this paper we discuss the former; the latter will be discussed separately.
ISSN:1064-119X
DOI:10.1080/10641190009353784
出版商:Taylor & Francis Group
年代:2000
数据来源: Taylor
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| 2. |
Submarine Hydrothermal Mineralization on the Izu–Bonin Arc, South of Japan: An Overview |
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Marine Georesources & Geotechnology,
Volume 18,
Issue 2,
2000,
Page 141-176
G.P. Glasby,
K. Iizasa,
M. Yuasa,
A. Usui,
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PDF (2755KB)
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摘要:
Considerable effort has been expended in studying the Izu–Bonin Arc over the past 15 years. In particular, 43 dives of the Shinkai 2000 have been undertaken there to discover and evaluate the extent of submarine hydrothermal activity and mineralization. Most effort has been focused on Myojin Knoll (23 dives), Suiyo Seamount (6 dives), and Kaikata Caldera (10 dives).
ISSN:1064-119X
DOI:10.1080/10641190009353785
出版商:Taylor & Francis Group
年代:2000
数据来源: Taylor
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