干旱区生态环境知识资源中心(Arid): 蒙甘青宁地区侏罗纪开合盆山构造格局及原型盆地沉积特征

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	蒙甘青宁地区侏罗纪开合盆山构造格局及原型盆地沉积特征
其他题名	Jurassic basin-range tectonic pattern and depsitional featrues of prototype abasin in the Inner Monigalica-Gansu-Qianghai-Nighxia region
	左国朝 1; 刘义科 1; 李相博 2
来源期刊	地质通报
ISSN	1671-2552
出版年	2004
卷号	23 期号:3 页码:261-271
中文摘要	休罗纪蒙甘青宁地处两伯利亚板块，太半洋中依泽余崎、法拉降、菲尼克斯3板块及印度板块之间的尔哑腹地部位。早、中侏罗世进入造山后的伸展一走滑盆山构造阶段，住盆山构造格局的负形地段孕育着大小不一的8种构造类型盆地，其偏南的多数地区处于业热带温暖潮湿气候区，沉积r大量煤层及有机质页岩。晚侏罗世，盆山构造经历了不均匀挤压和抬升作用，不少早期盆地逐渐消失，并转为热带、亚热带干旱气候，残存盆地主体为一套红色沉积。编图研究表明，早、中侏罗世时期全区既不足统一的"泛盆"，也不足现今侏罗系分布区的小型盆地区，而足人巾有小、盆山相间、多带展布的盆地群构造地貌。
英文摘要	The Inner Mongolia-Gansu-Qinghai-Ningxia region was located in the interior of East Asia between the Siberian plate, three plates in the Pacific Ocean and Indian plate during the Jurassic. During the Early and Middle Jurassic, the area went into the post-orogenic extensional-strike-slip basin-range stage. Eight types of structural basins of varying size were pregnant in the negative landform part of the basin - range tectonic pattern and most of the southern area was situated in a subtropical warm-wet climatic district and large amounts of coal and organic schist were deposited then. In the Late Jurassic, the basin-range tectonic pattern underwent inhomogeneous compression and uplifting and many early-formed basins gradually disappeared and the climate changed to tropical and subtropical arid ones. Then the principal part of the residual basins accepted red sediments. Map compiling study shows that during the Early and Middle Jurassic the whole area was neither a unified "overflow basin" nor a small basin area that we now see in the Jurassic area but a basin swarm tectono-geomorphology topography with a-, multi-zone, basin-ridge pattern.
中文关键词	蒙甘青宁地区
英文关键词	Inner Mongolia-Gansu-Qinghai-Ningxia region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:1621638
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204926
作者单位	1.甘肃省地质调查院, 兰州, 甘肃 730000, 中国; 2.中国科学院兰州地质研究所, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	左国朝,刘义科,李相博. 蒙甘青宁地区侏罗纪开合盆山构造格局及原型盆地沉积特征[J],2004,23(3):261-271.
APA	左国朝,刘义科,&李相博.(2004).蒙甘青宁地区侏罗纪开合盆山构造格局及原型盆地沉积特征.地质通报,23(3),261-271.
MLA	左国朝,et al."蒙甘青宁地区侏罗纪开合盆山构造格局及原型盆地沉积特征".地质通报 23.3(2004):261-271.