盆山转换与造盆、造山过程分析
Basin-range transition and basin-and mountain-building processes
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摘要: 盆地系统和造山带系统是大陆岩石圈上的两个主要构造单元,其包括地质历史中曾存在的和消失的盆地、大洋、大陆边缘及陆地。因此,盆山转换研究、探索盆转山和山控盆的过程则成为大陆地质的前沿研究领域。沉积地质学通过盆山转换和转换过程的分析研究,并以大陆边缘为主,对盆地分析、露头层序地层学研究,在盆地沉积相的时空配置和演化、大陆边缘转为前陆盆地过程中,分析海-陆环境在时空上的四个转换过程和自演化序列。盆山转换的另一关键是层序等时格架的建立。层序的等时性应包括层序界面(单一的和复合的界面)、层序和时间损失量。
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关键词:
- 盆山转换 /
- 大陆边缘 /
- 前陆盆地四个转换过程 /
- 层序等时性为层序界面 /
- 层序时间损失量
Abstract: The basin system and orogenic system are believed to be two essential tectonic units within the continental lithosphere, including pre-existing but now extinct basins, oceans and landmasses in geologic record. The researches on the basin-range transition thus be-come the frontiers of continental geology. In this paper, thd spatio-temporal evolutionary processes and self-evolutional sequences in oceanic and continental environments are probed on the basis of basin analysis and outcrop sequence stratigraphy. Another key prob-lem in the studies of the basin-range transition is the construction of the isochronous stratigraphic framework. The isochronism of sequences should encompass sequence bound-aries (simple or compound) sequences and time losses.-
Keywords:
- basin-range transition /
- continental margin /
- foreland basin /
- isochronism of sequencs /
- sequence
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