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Paleomagnetic studies of the Late Mesozoic deformation stage in the southern Primorye region |
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| Authors: | S V Shipunov Yu S Bretshtein A V Zhuravlev |
| Institution: | (1) St. Petersburg State University, St. Petersburg, Russia;(2) Yu.A. Kosygin Institute of Tectonics and Geophysics, Far East Division, Russian Academy of Sciences, Khabarovsk, Russia;(3) All-Russia Research Institute of Geological Prospecting for Oil (VNIGRI), St. Petersburg, Russia |
| Abstract: | The analysis of paleomagnetic data available for the southern Primiorye region revealed that the studied objects were magnetized under regional remagnetization presumably during the Late Mesozoic folding and this magnetization can be interpreted as being synfolding. The interpretation is based on the parameter that characterizes the folding completion degree immediately before regional remagnetization. It is shown that the relaxation of Late Mesozoic horizontal stresses was irregular. The obtained estimates of the degree of folding completion are consistent with the available geological data and Talitskii’s model for tectonic deformations. |
| Keywords: | paleomagnetism folding synfolding magnetization southern Primorye region |
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