摘要
江西婺源地区中元古代变质岩类型以浅变质的板岩、千枚岩、变余火山-碎屑岩及变火山熔岩和变质较深的构造片岩组成。根据岩石化学特征、变质作用类型和地质构造活动,恢复其原岩为一套泥质沉积和火山岩。中元古代地层发生区域变质的主要时间为晋宁期。
The type of metamorphic rocks in wuyuan area of jiangxi province is composed of shallow metamorphic slate, phyllite rocks, and variable volcano-clastic rocks, as well as deep tectonic schist. According to the petrochemistry character, metamorphism type and geological structure activity, the original rock was restored as a set of mud sediments and volcanic rocks. The main time of the metamorphism in the mesoproterozoic stratum is the jinning period.
引文
[1]李三忠,臧艺博,王鹏程,等.华南中生代构造转换和古太平洋俯冲启动[J].地学前缘,2017,24(04):213-225.
[2]章泽军,曾佐勋,张雄华.论赣西北中元古界双桥山群构造样式地层序列及地质意义[J].中国区域地质,1998(04):30-35.
[3]陈欣,方启春,黄超.福泉山地区钨多金属矿成矿地质特征及找矿预测[J].金属矿山,2016(08):108-113.
[4]韩瑶,张传恒,张恒,等.江南造山带东段新元古代弧盆构造格局[J].地质论评,2016,62(02):285-299.
[5]詹天卫,鄢新华,王保林,等.江西金家坞金矿地质特征及找矿前景[J].地质与勘探,2007(02):23-27.
[6]徐庆胜.江西德兴双桥山群中硅质岩对“金山式”金矿的找矿意义[J].地质与资源,2004(04):233-236.
[7]蔡雄飞,章泽军,王德珲,等.赣北双桥山群浅变质岩沉积学研究的新进展[J].地质调查与研究,2003(03):151-159.
[8]楼法生,章泽军,杨建国.赣西北双桥山群岩石变质变形温压条件分析[J].华南地质与矿产,2000(02):16-21.