地质通报2017，Vol.36Issue(8)：1319-1329,11.
北京延庆千家店盆地土城子组古生物化石及古气候沉积环境——延庆地区首次发现疑似恐龙骨骼化石
A discussion on Tuchenzi fossils and paleoclimate sedimentary environment in Qianjiadian basin of Yanqing County: Suspected dinosaur bones discovered for the first time in Yanqing, Beijing
摘要
Abstract
The Tuchengzi Formation in Qianjiadian Basin of Yanqing County is composed of three hthologic members:the first member mainly consists of polymictic gravel and glutenite,the second member mainly consists of purphsh red shale and argillaceous sandstone,and the third member mainly consists of compound gravel and gravel-bearing grit sandstone.A lot of fossils found in the second member have been reported,such as bivalves,conchostracans,Palaeontologists,plant fossils and dinosaur footprint.Nevertheless,no relevant reports on the fossils of ostracods,sporopollen and dinosaur bones are found.In this study,the suspected dinosaur bone fossils were discovered for the first time in the second member of the Tuchengzi Formation in Qianjiadian Basin of Yanqing County,and LA-ICP-MS zircon U-Pb dating of the argillaceous sandstone was carried out.According to the age values of the lower part of the first member (15.762±0.69Ma,) and the upper part of the second member (157.13±0.96Ma),the formation age of the Tuchengzi should be early Late Jurassic.On the basis of previous studies,the ancient climate and sedimentary environment of the Qianjiadian basin are discussed.关键词
晚侏罗纪早期/恐龙骨骼/古气候背景/沉积环境/延庆千家店盆地Key words
early Late Jurassic/dinosaur bone/ancient climate/sedimentary environment/Qianjiadian Basin in Yanqing分类
生物科学引用本文复制引用
贺瑾瑞,程素珍,焦润成,南赟,郝春燕,张玲玲,冉淑红,宋庆伟,张翊超,赵丹凝..北京延庆千家店盆地土城子组古生物化石及古气候沉积环境——延庆地区首次发现疑似恐龙骨骼化石[J].地质通报,2017,36(8):1319-1329,11.基金项目
中国地质调查局项目《华北地区重要地质遗迹调查(北京)》(编号:1212011220044)、北京市国土局项目《北京市地质遗迹详查评价及保护对策研究》(编号:0747-1361SITCN217)和北京市地质矿产勘查开发局项目《北京市延庆县千家店盆地土城子组孢粉组合特征研究》(编号:京地[2015]148号) （北京）
