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印度板块和欧亚板块碰撞接触的界线(缝合线)究竟在哪里? 有人臆测喜马拉雅山南麓的印度河——恒河一线就是缝合线;又有人认为喜马拉雅山脉的主脊线即是两大板块的缝合线。前一种说法因发现喜马拉雅山南坡的地层“根基”与印度半岛的地层“根基”相同而不能成立。后一种说法也因在珠峰北坡的定日、定结等地发现了冈瓦纳古陆所特有的舌羊齿植物群而得到修正;因为舌羊齿植物群是二叠纪时期印度和非洲南
India and Eurasia plate collision plate boundaries (suture) where exactly? Some people speculate that the Himalayas south of the Indus - Ganges line is the suture; some people think that the main ridge of the Himalayas is the two plates Suture. The former argument can not be found because it is found that the stratum “base” of the southern slope of the Himalayas is the same as the stratum “base” of the Indian Peninsula. The latter argument was also corrected because of the discovery of the lingual fern flora unique to Gondwanaland in the fixed-point and fixed-knots on the northern slope of Mount Everest; because the lingual fern flora is the Permian period of India And South Africa