Variations of gravity anomaly roughness in Chugoku district, Japan: Relationship with distributions of topographic lineaments
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- Kudo Takeshi
- Tono Geoscience Center, Japan Nuclear Cycle Development Institute
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- Yamamoto Akihiko
- Graduate School of Science, Hokkaido University
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- Nohara Tsuyoshi
- Tono Geoscience Center, Japan Nuclear Cycle Development Institute
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- Kinoshita Hirohisa
- Tono Geoscience Center, Japan Nuclear Cycle Development Institute
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- Shichi Ryuichi
- College of Engineering, Chubu University
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Abstract
Tectonic movement may disturb lateral continuities of crustal structures at weak zones. These lateral discontinuities of density structure cause undulations of the gravity anomaly field whose complexity can be an indicator of past crustal instability. On the other hand, topographic lineaments are formed along weak crustal zones. We would expect therefore that gravity anomaly roughness bears some relation to the distribution of surface lineaments. We develop a statistical method by employing the Bouguer anomaly standard deviation as an index of gravity anomaly roughness in terms of which we interpret the spatial distribution of topographic lineaments in Chugoku district, Japan. Locations of the lineaments, which could be diagnostic of the heterogeneity of the previously damaged crust, tend to coincide with those of high roughness areas of gravity anomaly fields.
Journal
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- Earth, Planets and Space
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Earth, Planets and Space 56 (5), e5-e8, 2004
Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences
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Details 詳細情報について
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- CRID
- 1390001206512521088
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- NII Article ID
- 40006668141
- 130003956419
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- NII Book ID
- AA11211921
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- ISSN
- 18805981
- 13438832
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- NDL BIB ID
- 7279673
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed