共查询到20条相似文献，搜索用时 31 毫秒
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西伯利亚板块旋转漂移运动刍议 总被引：1，自引：0，他引：1
西伯利亚板块是世界上古老的地质构造单元之一。根据板块构造理论，该板块当今的地表形态和地理位置，是其经过不断迁移，与其它板块不断发生碰撞的结果。本文试从展现板块的水平运动特点出发，着重揭示西伯利亚板块在各地质时期的运动状态，从而阐述该板块自寒武纪以来的旋转漂移的全过程。 相似文献
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Global patterns of azimuthal anisotropy and deformations in the continental mantle 总被引：23，自引：0，他引：23
L. P. Vinnik L. I. Makeyeva A. Milev A. Yu. Usenko 《Geophysical Journal International》1992,111(3):433-447
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Motion of the Scotia Sea plates 总被引：2，自引：0，他引：2
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The tectonic history of the Western Mediterranean region during the Oligocene and Early Miocene is illustrated through a series of plate reconstructions, from chron C13n to chron C6n. The reconstructions are based on a new interpretation of published magnetic anomaly data and two-ships seismic data, and their integration with known geological constraints, in order to determine style and timing of the backarc extension processes in the Liguro-Provençal, Valencia and Algerian basins. In particular, a reinterpretation of the regional magnetic anomaly field allowed the calculation of the instantaneous Euler poles associated with the motion of 11 microplates relative to Eurasia and Iberia. Furthermore, a quantitative analysis of the acoustic basement morphology and the balancing of deep crustal profiles were used to estimate the closure and pre-rift rotation angles associated with the Euler poles of opening of the Ligurian, Provençal, Valencia and Algerian basins. This rigorous reconstruction of the geometry of the pre-rift continental margins of Iberia and Eurasia could furnish important insights into the study of Mediterranean tectonics for older times. 相似文献
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Charles DeMets Richard G. Gordon Jean-Yves Royer 《Geophysical Journal International》2005,161(2):445-468