论文部分内容阅读
混杂堆积（Ｍéｌａｎｇｅ）②不是孤立的地质现象，它是一种在特定地质历史时期、特定地质条件下的特殊地质体。它的分布范围与陆间海盆和板块缝合带密切相关，形成时期与缝合带附近的俯冲活动（包括海下俯冲在内）有关。在雅鲁藏布江缝合带有过关于它的诸多报道，但羌塘地区中部发现混杂堆积（图１）尚属首次。它的发现对确定羌塘中部地区冈瓦纳与欧亚古陆的界线有着重要意义。
Mélange ② is not an isolated geological phenomenon. It is a special geological body under certain geological conditions during a specific geological history. Its distribution is closely related to the continental basin and the plate suture zone. The formation period is related to subduction activities (including subduction of the sea) near the suture zone. There are many reports about it in the suture zone of the Brahmaputra, but for the first time it is found in the middle of the Qiangtang area that it is mixed (Figure 1). Its discovery is of great significance in determining the boundary between Gondwana and Eurasian ancient land in central Qiangtang.