辽宁建昌玲珑塔地区中侏罗世地层与化石初步报道  

Preliminary report on Middle Jurassic strata and fossils from Linglongta area of Jianchang,Liaoning

作　　者：段冶[1] 郑少林[1] 胡东宇[1] 张立君[1] 王五力[1] 

机构地区：[1]沈阳师范大学古生物研究所,沈阳110034

出　　处：《世界地质》2009年第2期143-147,共5页World Geology

基　　金：辽宁省教育厅科技项目(20060805;2008S214);地质过程与矿产资源国家重点实验室项目(GPMR200603)资助

摘　　要：辽西建昌县玲珑塔地区出露一套火山岩所夹的沉积地层,富含叶肢介、介形类、双壳类、鱼、昆虫、脊椎动物和植物等化石。经区域地层研究,结合对玲珑塔大西山地质剖面实测以及对该剖面新近所采集的各门类化石的综合研究,确认此套沉积地层位于义县组之下,属髫髻山组,化石显示"燕辽生物群"面貌,时代为中侏罗世。A set of sediments yielding abundant fossils, sandwiched in volcanic rocks, outcrop in the Linglongta area of Jianchang County in western Liaoning Province. The fossils consist of conchostracans, ostracods, bivalves, fish, insects, plants, vertebrates, etc. Based on the regional stratigraphic investigation, measuring geological section and synthetic study of the fossils newly collected in the Daxishan site, the authors have assured the sediments belonging to the Tiaojishan Formation aged in Middle Jurassic, and the formation is underlying the Yixian Formation stratigraphically. The fossil assemblage of the Tiaojishan Formation indicates the characters of the Middle Jurassic Yanliao Biota.

关 键 词：中侏罗世 髫髻山组 实测剖面 化石 玲珑塔地区 建昌县 

分 类 号：P534.52[天文地球—古生物学与地层学] Q911.23[天文地球—地质学]