新民村—板房沟推覆构造特征及对集安岩群与老岭群关系的制约  

Xinmin village-Banfanggou nappe structure characteristics and restriction to Ji`an group-complex and Laoling Group relation

作　　者：崔天夫[1] 王向丽[2] 花艳秋[1] 郭孟习[1] 

机构地区：[1]吉林省区域地质矿产调查所,吉林长春130022 [2]吉林省勘查地球物理研究院,吉林长春130022

出　　处：《吉林地质》2012年第4期8-13,共6页Jilin Geology

摘　　要：本文通过详细研究通化南部砬子沟、楼子沟、西南部的和平屯、桓仁黑沟、四道河子等地区的古元古代集安岩群、老岭群的剖面,发现自辽宁桓仁果松川—四道河子经新民村、西江、磨齿村、板房沟、砬子沟至通化南存在一条大型逆冲断层,地表出露产状较陡,航磁延拓资料显示,向地下倾角变缓,地下5km处倾角近水平,为一大型推覆构造;该推覆构造恰好为集安岩群和老岭群的接触界线。本文充分研究分析了前人相关的地质资料,提出集安岩群和老岭群二者为构造接触,为研究该区域古元古代构造格架及演化提供了新的资料。The paper studied the Paleoproterozoic Ji＇an group-complex, profile of Laoling Group of Lazigou, Louzigougou, the southwest Heping village,Huanrenheigou, Sidaohezi of southern part of Tonghua region,Jilin Province. It is found that there is a large thrust fault from Huanren Guosongchuan - Sidaohezi - Xinmin village, Xijiang, Mochi Village,Banfanggou, Lazigou of Liaoning Province to southern part of Tonghua of Jilin Province ,the surface shows steep occurrence, data shows aeromagnetic continuation ,to angle slowly becomes to the underground, in underground 5 km is nearly horizontal angle, which belongs to a large nappe structure; The nappe structure is just a contact line of Ji＇an group-complex and Laoling Group. This paper fully studied and analyzed the previous related geological data, and puts forward that Ji＇an group-complex and Laoling Group is structure contact, the result provided the new data of the study of Paleoproterozoic structural framework and evolution in the study area.

关 键 词：集安岩群 老岭群 接触关系 推覆构造 

分 类 号：P542[天文地球—构造地质学]