摘要
对鞍本、冀东、鲁西、阴山等早前寒武纪典型地区和深部物质进行了深入研究,总结了华北克拉通早期地壳形成演化历史。揭示出鄂尔多斯地块本身强烈卷入了古元古代晚期构造热事件。首次在华北克拉通划分出3个>2.6 Ga古陆块。
We carried out integrated geological, geochronological and geochemical studies on typical early Pre- cambrian areas of the North China Craton, such as Anshan-Benxi, eastern Hebei, western Shandong and Yinshan, and synthesized the general geological records of the Archean basement relating to Archean crust forma- tion and evolution of the North China Craton. This study also revealed that the Ordos basement was involved in a widespread late Paleoproterozoic tectono-thermal event. We defined and outlined three ancient terranes containing abundant 3.8 ~ 2.6 Ga rocks for the first time in the North China Craton, namely the Eastern Ancient Terrane, Southern Ancient Terrane and Central Ancient Terrane.
出处
《中国地质调查》
2015年第3期1-4,共4页
Geological Survey of China
基金
中国地质调查"华北克拉通太古宙早期古老陆壳物质的寻找
鉴别和研究(编号:1212011120151)"
"华北克拉通太古宙早期陆核形成与演化(编号:12120114021301)"
国家"973"项目"太古宙陆壳增生与条带状铁矿发育规律(编号:2012CB416601)"
国家自然科学基金项目"鲁西花岗-绿岩带的形成和演化:地质
地球化学和锆石SHRIMP U-Pb定年(编号:41172127)"等项目联合资助