摘要
下元古界八都群是中国东南大陆边缘最古老的变质岩系之一，为早前寒武纪浙闽克拉通的主要组成部分。利用单颗粒锆石Ｕ－Ｐｂ法、常规锆石Ｕ－Ｐｂ法、锆石蒸发Ｐｂ法、Ｓｍ－Ｎｄ、Ｒｂ－Ｓｒ等时线法确定八都群的成岩时代为２０５０－２４００Ｍａ，区域变质作用和克拉通化时间为１９００±１００Ｍａ。
The lower Proterozoic Badu Group is one of the oldest metamorphic rock series in the continental margin of Southeast China,and is an integral part of the early Precambrian Zhejiang-Fujian craton.The sedimentary age (2050-2400Ma) and metamorphic age (1900±100) were obtained using grain zircon U-Pb,common zircon U-Pb,zircon evapolating Pb,Sm-Nd and Rb-Sr isochron methods.
出处
《地球化学》
CAS
CSCD
北大核心
1994年第C00期18-24,共7页
Geochimica
