江西科学2017，Vol.35Issue(2)：183-190,225,9.DOI:10.13990/j.issn1001-3679.2017.02.001
江西相山南部花岗斑岩中绿泥石特征及其形成环境研究
Characteristics of Chlorite and its Forming Environmentin the Granitoid Porphyry of Southern of Xiangshan
摘要
Abstract
Chloritization is an important alteration type in the process of uranium mineralization and metallogenesis.The study of granite-porphyry rock samples from the southern part of the Xiangshan area,It is found that chloritization is a common hydrothermal alteration phenomenon in this granite porphyry.In this paper,Based on EPMA anaalysis and mineralogical study of the chlorite from the granite porphyry in the southern part of Xiangshan area.The chemical composition of chlorite in granite porphyry in each area was determined.The correlation coefficient of the AlⅣ,AlⅥ,n(Al)/n(Al+Mg+Fe),n(AlⅥ+FeⅡ)-n(Mg) and the formation temperature of chlorite were calculated.And the characteristics of chlorite and its forming environment were discussed.1)The chlorite in the granitic porphyry of southern Xiangshan is mainly altered by biotite,and the chlorite in the granite porphyry is mainly composed of brunsvigite and ripidolite,a few belong to chamosite.2)The chlorite from the granite porphyry in the ShangNan area of Xiangshan is mainly derived from ferromagnesitic rocks or iron-rich and magnesium-rich fluids,while the main sources of the granite porphyry are mudstone in the XiaBao area.3)The formation temperature of chlorite in the granite porphyry in the south is between 217.91~278.45 ℃,the average temperature is 256.09 ℃.关键词
绿泥石/形成环境/花岗斑岩/相山南部Key words
chlorite/forming environment/granitoid porphyry/southern of Xiangshan分类
天文与地球科学引用本文复制引用
许迅,张树明,杨春四,秦雨,阮小语,彭瑞强..江西相山南部花岗斑岩中绿泥石特征及其形成环境研究[J].江西科学,2017,35(2):183-190,225,9.基金项目
国家自然科学基金项目(编号:41172079). （编号:41172079）
