The paleomagnetism and geological significance of Mesoproterozoic dyke swarms in the central North China Craton |
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| Authors: | HOU Guiting LI Jianghai QIAN Xianglin ZHANG Baoxing HCHalls |
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| Institution: | 1. Department of Geology, Peking University, Beijing 100871, China
2. Department of Geoscience, University of Toronto, Canada |
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| Abstract: | The Mesoproterozoic mafic dyke swarms are extensively distributed in the central North China Craton(NCC) including North Shanxi,
Wutai and Lüliang areas, which are not deformed and metamorphic but high magnetic, so the dyke swarms become the mark to compare
the high metamorphic rock areas in magnetism. Based on the analysis of paleomagnetism of mafic dyke swarms in North Shanxi,
Wutai and Lüliang areas, NCC inclined southward about 18ü so that North Shanxi lifted up and rotated 10ü left to Wutai area.
The dyke swarms in Lüliang developed later than in North Shanxi and Wutai area. The NNW-trending and WNW-trending dyke swarms
developed in Lüliang while the North China Plate moved northward consistently so that the paleomagnetism of dyke swarms in
Lüliang is greatly different from North Shanxi and Wutai area. |
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| Keywords: | Mesoproterozoic mafic dyke swarms paleomagnetism magnetic inclination magnetic declination apparent polar wander path |
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