Geochemical Evidence of Element and Sr-O-Nd-Pb Isotopes for Petrogenesis of the Huichang Early Cretaceous Shoshonite, Southern Jiangxi Province

详细信息   

• 责任者：Zhang Bangtong (State Key Laboratory for Mineral Deposits Research ; Department of Earth Sciences ; Nanjing University ; Nanjing 210093 ; China) ; Wu Junqi
• 刊名：Acta Geologica Sinica
• 出版年：2008
• 卷期：82(7)
• 关键词：橄榄粗安岩 ; mugearite ; 橄榄玄武岩 ; olivine basalt ; 江西 ; Jiangxi
• 页码：p.986-997
• 图表：9 illus., 3 tables, 46 refs.
• 分类号：0801
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

摘要

The intermediate basic volcanic rocks in the Huichang area of southern Jiangxi province are characterized by: high total alkalis, enrichment of K₂O, low TiO₂ content, low iron content and the enrichment of LREE and LILE elements. In combination with the mineralogical features such as the appearance of orthoclase rims along the plagioclase boundary and the existence of orthoclase microcrystals in the groundmass, it is identified to be shoshonite-latite association and belong to typical interplate shoshonitic volcanic rock series.