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Aeromagnetic Constraints on the Basement Structure of the Tunghai Shelf and the Okinawa Trough in the East China Sea

By
S. Okuma
S. Okuma
Geological Survey of Japan Tsukuba, Ibaraki, Japan
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T. Nakatsuka
T. Nakatsuka
Geological Survey of Japan Tsukuba, Ibaraki, Japan
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M. Makino
M. Makino
Geological Survey of Japan Tsukuba, Ibaraki, Japan
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R. Morijiri
R. Morijiri
Geological Survey of Japan Tsukuba, Ibaraki, Japan
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Published:
January 01, 1998

Abstract

Aeromagnetic surveys offshore the western Nansei Islands, Japan, were conducted by the Geological Survey of Japan (GSJ) from 1982 to 1989 (Okuma et al., 1991). The surveys cover the area from the Tunghai Shelf in the East China Sea to the Okinawa Trough west of the Nansei Islands (Ryukyu Arc) (Figures 1 and 2). Although the area, especially the Tunghai Shelf, was regarded as a potential field for hydrocarbon resources, few explorations were conducted in the area. The aeromagnetic surveys, therefore, were conducted. Then we performed a 3-D, two-layer magnetic modeling to obtain further detailed information about the basement structure of the area. This paper outlines the results of the modeling and describes characteristics of the magnetic anomalies in the area.

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Contents

Society of Exploration Geophysicists Geophysical References Series

Geologic Applications of Gravity and Magnetics: Case Histories

Richard I. Gibson
Richard I. Gibson
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Patrick S. Millegan
Patrick S. Millegan
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Society of Exploration Geophysicists
Volume
8
ISBN electronic:
9781560801832
Publication date:
January 01, 1998

GeoRef

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