Geochronology and Isotope Geochemistry of the Xiqiu Spilite—Keratophyre in Zhejiang Province,China

在线阅读 下载PDF 导出详情
摘要 Spilite-keratophyreisakeymemberoftheShuangxiwuGroupvolcanicseriesinZhejiangProvince.PresentedinthispaperarethereliableSm-Ndinternalisochronage(1012±18Ma,∈Nd(T)=4.4±0.1)andwhole-rockRb-Srisochronage(972±40Ma,Isr=0.70327±8)obtainedforthefirsttimebytheauthors.FromtheavailableNd,SrandOisotopedatainconjunctionwiththemajorandtraceelementsdataitissuggestedthattheXiqiuspilite-keratophyreistheproductofisland-arcvolcanismduringthelateMiddleProterozoic.
机构地区 不详
出版日期 1993年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
  • 相关文献