Distribution of apparent magnetization for Asia |
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| Authors: | Xu Yuanfang An Zhenchang Huang Baochun V P Golovkov N M Rotanova A L Kharitonov |
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| Institution: | 1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
2. IZMIRAN 142092 Troitsk, Moscow, Russia |
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| Abstract: | Magsat total field anomalies over Asia were used to construct an equivalent magnetization model, which represents the apparent
magnetization distribution within an equivalent layer 40 km thick and correlates well with large-scale tectonics, for example,
the Kazakhstan, Tarim, Yangtze, India, Sino-Korea and Indochina blocks. The basin, plain, sea basin, and islands are delineated
by magnetization lows whereas the plateau and marine ridge correspond to magnetization highs. The boundary between Tibetan
Plateau and India marked by a strong gradient along its length coincides with the Yarlung Zangbo River fault roughly. The
Tanlu fault belt is the boundary between positive and negative anomalies. This boundary stretches in southwest direction and
joins Sanjiang fault belt. The boundary between the Southeast China block and the Yangtze block is also clearly delineated
by the magnetization anomalies. Generally, the magnetization boundaries are consistent with the collisional suture of blocks. |
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| Keywords: | apparent magnetization equivalent layer magnetization tectonics |
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