秦岭群的东延及其意义

EASTWARD EXTENTION OF QINLING GROUP AND ITS SIGNIFICANCE

通过对信阳光山凉亭地区大别山北坡龟梅断裂带中呈透镜状零星分布的高级变质岩块在岩石组合、温压环境、变形变质特点等方面与陕南豫西的秦岭群对比，认为该高级变质岩块群是秦岭群的东延部分，从而得出在大别山区。

Some lens like high grade metamorphic blocks distribute within Guishan Group along Gui Mei fault belt in Guangshan county, Henan Province. On the basis of the study of rock assemblage, metamorphism P T condition and the nature of deformation, the authors point out that above mentioned high grade metamorphic blocks can be compared with the Qinling Group and represents the eastward extension part of the Qinling Group. The conclusion is that the Qinling island arc terrain exists still between the continent segments of North China and Yangtze.