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大别山-苏鲁地区榴辉岩形成时代的地质与年代依据
THE GEOLOGICAL AND CHRONOLOGIC BASIS FOR THE FORMATION TIME OF ECLOGITES IN THE DABIE MTS AND SULU AREA
【摘要】 本文依据大别山—苏鲁地区变质花岗岩中有大量被蚀变交代的榴辉岩“包体”,及变质花岗岩呈脉状穿切榴辉岩,以及榴辉岩呈脉状侵入浅变质岩层中等野外地质事实,并据相关地质体的年龄资料确定区内榴辉岩应形成于晋宁期。
【Abstract】 The eclogites in the Dabie Mts and Sulu area are thought to be the product of the Jinning period based on field observation of a large number of alteration metasomatic eclogite“ inclusions” ,veinlike metamorphic granites cutting through eclogites and vein- like eclogites emplacing into low- grade metamorphic rock beds as well as the age data of the concerned geological bodies.
【关键词】 榴辉岩;
变质花岗岩;
浅变质岩层;
晋宁期;
【Key words】 eclogite; metamorphic granite; low- grade metamorphic rock bed; Jinning period;
【Key words】 eclogite; metamorphic granite; low- grade metamorphic rock bed; Jinning period;
【基金】 地质行业基金!(编号HY979829);安徽省地矿局资助
- 【文献出处】 安徽地质 ,GEOLOGY OF ANHUI , 编辑部邮箱 ,2000年03期
- 【分类号】P597
- 【被引频次】7
- 【下载频次】131