- archicontinent; old land
◇古陆桥 pangaea
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古陆的英文
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- The north provenance provided main detrital material , which can be delicately divided into two different sections , taipusiqi , ji ' ning area in the east and zha ' ertai mountain , wula mountain in the middle of yinshan ancient land . the distribution of gas pool in the eastern part of ordos area was obviously controlled by sedimentary facies belts
北物源区提供了主要的碎屑物质，它又可细分为东、西两个不同的部分，分别为阴山古陆东部太仆寺旗、集宁地区和阴山中部的渣尔泰山、乌拉山地区。 - Phosphate deposits are distributed along the margin , platform and basin in the west yangtze area . the analysis methods include the paleogeography , petrology , organic geochemistry , geochemistry . the conclusions are drawn that the source of phosphate deposits distributed along the margin originate from the weathering production of continent , while phosphate deposits along the platform and basin gain phosphorus through hot spring on the buttom of the sea floor , which is brought to the sedimentary environment by rising sea - fluid , then accumulated by the organism and microorganism , meanwhile , basin phosphorite keep relatively higher organic carbon content
认为早寒武世早期古陆遭受风化，被剥蚀下来的产物成为潮坪型磷块岩的主要磷质来源，在碳酸盐岩台地发生的热点活动和上升洋流从盆底深部带来的磷质，共同作为台地型磷块岩的磷源，盆地型磷块岩的磷质同样是由热点活动和上升流携带至缺氧的沉积环境中，通过藻类或微生物的富集作用成岩，并保留了较高的有机碳含量。 - On the basis of the analyses of peripheral ancient land , types of sand stone , light and heavy mineral associations and directions of palaeoflow , it is considered that detrital material of terrigenous origin of the upper palaeozoic in this area come from south provenance and north provenance , respectively , yinshan ancient land in the northern and east qinling ancient land in the southeastern
根据盆地周缘古陆、砂岩类型、轻、重矿物组合及古水流方向等特征的分析，认为研究区上古生界陆源碎屑物质来自南、北两大物源区，即北部的阴山古陆和东南部的东秦岭古陆。 - Geotectonically , the youjiang sedimentary basin was referred as youjiang yindosinian folded belt . triassic turbidites accumulated in the basin were derived from surrounding ancient lands including yuebei , jiangnan , and yunkai . tectonic setting of the sedimentary basin was in between an active continental margin and a continental island arc
赋矿浊积岩系的主要物源区为盆地周围的“越北古陆” 、 “江南古陆”和东边地区包括钦防海西褶皱带在内的“云开古陆” ，沉积构造背景介于大陆岛弧和活动大陆边缘之间的过渡构造环境。 - Distant effect of jurassic collisions of qiangtang terrane , lasa terrane and paleo - pacific land onto the eurasian land made east qinling - dabie mountains in a compressional circumstance for a long time , and suppressed its orogenic extension ; whereas , cretaceous late - collisional extension and appearance of west pacific trench - arc - basin system relieved east qinling - dabie mountains of external compression , instantly result in violent orogenic lithosphere delamination - extension and depressurized - calefactive melting , and consequently , led to the formation of large scale early cretaceous granitoids and intermediate - acidic volcanic rocks
羌塘地体拉萨地体和西太平洋古陆在侏罗纪与欧亚大陆拼贴碰撞的远距离效应使东秦岭大别造山带长期处于挤压环境，伸展作用被抑制白垩纪的碰撞晚期伸展和西太平洋沟弧盆体系的远距离效应使东秦岭大别地区的外部挤压消失，导致造山带岩石圈迅速强烈拆沉伸展和减压增温熔融，从而形成大规模早白垩世花岗岩类和中酸性火山岩。