辽西阜新夏家沟地区新元古界殷屯组发现的意义  

DISCOVERY OF THE NEOPROTEROZOIC YINTUN FORMATION IN XIAJIAGOU AREA OF FUXIN,WESTERN LIAONING:Geological Implication

作　　者：卢崇海 刘振伟 曹煜昊 李彪 徐耸 关树野 陈历佳 卢思桥 LU Chong-hai;LIU Zhen-wei;CAO Yu-hao;LI Biao;XU Song;GUAN Shu-ye;CHEN Li-jia;LU Si-qiao(Liaoning Mineral Exploration Institute Co.,Ltd.,Shenyang 110031,China;Liaoning Institute of Geology and Mineral Resources Co.,Ltd.,Shenyang 110032,China)

机构地区：[1]辽宁省矿产勘查院有限责任公司,辽宁沈阳110031 [2]辽宁省地质矿产研究院有限责任公司,辽宁沈阳110032

出　　处：《地质与资源》2021年第5期521-525,554,共6页Geology and Resources

基　　金：辽宁省地质矿产勘查局项目“辽宁新元古代南华纪地层划分与对比研究”(辽地科[2016]04号).

摘　　要：在对辽西夏家沟地区出露的中元古界长城系、蓟县系岩石地层单位进行考察时,在中元古界长城系串岭沟组之上,发现了新元古界北方南华系下统殷屯组冰碛杂砾岩地体,该地体与中元古界长城系串岭沟组呈角度不整合接触.该项发现填补了辽西地区新元古代时期陆相岩石地层单位沉积的一项空白,对于讨论辽西地区新元古代地壳的演化历史增添了新的内容,具有重要的地质意义.During the investigation of Mesoproterozoic Changchengian and Jixianian lithostratigraphic units occurred in Xiajiagou area of western Liaoning Province,the moraine conglomerate terrane of Yintun Formation of Lower North Nanhuan System,Neoproterozoic,is found above the Chuanlinggou Formation of Mesoproterozoic Changchengian System.The two show an angular unconformity contact relation.The discovery fills a gap in the Neoproterozoic continental lithostratigraphic unit deposition and adds new content to the discussion of Neoproterozoic crustal evolution history in western Liaoning,which has great geological implication.

关 键 词：北方南华系 殷屯组 新元古界 冰碛杂砾岩 辽西 

分 类 号：P534.3[天文地球—古生物学与地层学]