摘要
笔者在常州沟组岩石样品岩石学特征研究的基础上,利用碎屑组分分析和地球化学数据分析等方法,探究兴城地区常州沟组地层沉积物源特征及其构造背景。研究表明,研究区常州沟组岩石样品物源多来自于相对成熟的酸性岩石,以沉积岩和花岗岩为主,经历中等偏弱的风化作用,其源区构造背景相对比较稳定,可能为被动大陆边缘。
Based on the petrological study of rock samples from Changzhougou Formation,the methods of clastic composition analysis and geochemical data analysis are used to explore the sedimentary source characteristics and tectonic background of Changzhougou Formation in Xingcheng area.The results show that the provenance of the Changzhougou Formation in the study area is mainly relatively mature acid rocks,including sedimentary rocks and granites,which experienced moderate to weak weathering.The tectonic background of the provenance area is relatively stable,and the tectonic setting is likely passive continental margin.
作者
修铭
高福红
贾啸宇
龚辉
XIU Ming;GAO Fu-hong;JIA Xiao-yu;GONG Hui(College of Earth Sciences,Jilin University,Changchun 130061,China)
出处
《世界地质》
CAS
2020年第3期578-589,共12页
World Geology
基金
吉林大学兴城教学基地建设研究项目(PB2014002)资助。
关键词
兴城地区
常州沟组
沉积物源
构造背景
Xingcheng area
Changzhougou Formation
sediment provenance
tectonic background
