• 责任者：Liu Pinghua (Institute of Geology ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Liu Fulai
• 刊名：Acta Petrologica et Mineralogica
• 出版年：2011
• 卷期：30(5)
• 关键词：片麻岩 ; gneisses ; 山东 ; Shandong Province
• 页码：p.829-843
• 图表：9 illus., 2 tables, 45 refs.
• 分类号：0802
• issnNo：ISSN1000-6524
• isbnNo：CN11-1966/P

Al-rich paragneisses in Jingshan Group are extensively distributed in the Early Precambrian metamorphic basement of Shandong Peninsula, southeast part of the North China Craton. Zircons separated from Al-rich paragneisses are divided into three main types based on cathodoluminescence (CL) and in situ U-Pb dating, i.e., inherited (magmatic or detrital) zircon, HP metamorphic zircon and retrogressive zircon. The results indicate that the Paleoproterozoic protoliths of Al-rich paragneisses, together with their TTG rocks and mafic rocks, were subducted to coeval Paleoproterozoic HP metamorphism (1 900~1 850 Ma), followed by late medium-and low-granulites-facies retrogression (1 840~1 820 Ma).