[1]PANG Wei-dong,YANG Run-hai,ZHANG Jian-guo.Processing of Anomalous Gravity Data in Kunming Area[J].Journal of Seismological Research,2009,32(03):299-305.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 03
Page number:
299-305
Column:
Public date:
2009-03-23
- Title:
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Processing of Anomalous Gravity Data in Kunming Area
- Author(s):
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PANG Wei-dong1; YANG Run-hai2; ZHANG Jian-guo2
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(1.Geophysical Department,Yunnan University,Kunming 650091,Yunnan,China)(2.Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)
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- Keywords:
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gravity field; wavelet multi-scale analysis; singular-value decomposition; Kunming area
- CLC:
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P312.1
- DOI:
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- Abstract:
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Gravity data is the result of gravity field composition by all underground sources with different densities.In order to effectively divide the gravity anomaly,the wavelet multi-scale analysis and Singular-Value Decomposition(SVD)are applied to the decomposition of the gravity fields.Through the processing of the anomalous data of Bouguer gravity in Kunming area,we get the decomposition data.The data exposes the heterogeneity of the densities of geological bodies with different burial depths and different scales,so the basins are effectively delineated and the spatial extension of several major faults is showed.These two methods are effective for gravity data processing.