Paleomagnetic Study on Cretaceous and Paleogene Rocks from Eastern Heilongjiang, NE China and Its Tectonic Implications

详细信息   

• 责任者：Wang Hailong (State Key Laboratory of Lithospheric Evolution ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China） ; Huang Baochun
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54（3）
• 关键词：古地磁 ; paleomagnetism ; 地壳运动 ; crustal movement ; 黑龙江省 ; Heilongjiang Province
• 页码：p.793-806
• 图表：5 illus., 2 tables, 56 refs.
• 分类号：0400
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

Intracontinental block rotation is the result of interaction between crustal tectonic environment and tectonic activity in the lithospheric mantle. Paleomagnetic studies on the Cretaceous and Paleogene rocks from 51 sampling sites in the eastern Heilongjiang Province confirm that the Muling, Jixi, Qitaihe and Huanan areas in the east of the Mudanjiang fault are subjected to counterclockwise rotation of about 30°~40° relative to stable North and South China blocks and Eurasia since the Late Cretaceous. The differential rotation of the eastern North China and the Far Eastern Russian areas is probably due to the re-activation of the Mudanjiang fault and the subduction of the Pacific Plate since the Cretaceous.