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2014, 33(4) 910-915 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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| 论文 |
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Application of joint inversion interpretation of gravity and magnetism in Tianchi deep structure of Changbai Mountain |
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SUN Bang-Min, WU Yan-Gang, GUAN Yan-Wu |
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College of Geo-exploration Science and Technology，Jilin University，Changchun 130026，China |
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Abstract：
Joint inversion of gravity and magnetic can solve the problem of weak reflection energy for deep seismic caused by volcanic strong reflection shielding effect． In order to interpret deep faults and describe the for- mation pattern in Changbai Mountain，the authors relied on Oasis Montaj gravity and magnetic fitting platform and seismic geological data to create the original gravity and magnetic model，and lithological parameters were used as constraints to joint inversion interpretation． According to the distribution characteristics of geomagnetic and Bouguer gravity anomalies，the authors inversed the stratigraphic distribution within underground 8 km，and interpreted the fracture distribution at 7 locations． Among them，the location of deep and large fault matched well with the results of geological and remote sensing research，and in higher precision． |
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Keywords：
volcanic structure
joint inversion
gravity and magnetic fitting
Changbai Mountain
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Received Revised Online: |
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