沉积与特提斯地质2017，Vol.37Issue(3)：74-80,7.
重庆綦江白垩系夹关组遗迹化石及其沉积环境
The trace fossils and their sedimentary environments in the Cretaceous Jiaguan Formation, Qijiang, Chongqing
摘要
Abstract
The trace fossils are mostly autochthonously buried, and so it is significant to study the trace fossils for the reconstruction of palaeoenvironments, palaeoclimatology, palaeoceanography and palaeoecology. The present paper gives a detailed description of the types and sedimentary environments of the trace fossils, and may provide new trace fossil evidence for the sedimentary evolution of the Jiaguan Formation in Qijiang, Chongqing. The trace fossils examined in this study occur in the strata of the Cretaceous Jiaguan Formation in the Laoyingshan scenic area of the Qijiang National Geological Park, Qijiang, Chongqing, and consist of one ichnofacies, three ichnogenus and three ichnospecies i. e. , Scoyenia gracilis, Beconites antarcticus and Planolites beverleyensis. These trace fossils are assigned to the Scoyenia ichnofacies and represent the flood plain or littoral-shallow lake environments which are intermittently exposed to the surface in the deposition of the the Jiaguan Formation during the Cretaceous.关键词
遗迹化石/沉积环境/夹关组/重庆綦江Key words
trace fossil/sedimentary environment/Jiaguan Formation/Qijiang in Chongqing分类
天文与地球科学引用本文复制引用
熊璨,代辉,陈昀,胡旭峰,王荀仟,张海萍,周羽漩,王丰平,谢显明..重庆綦江白垩系夹关组遗迹化石及其沉积环境[J].沉积与特提斯地质,2017,37(3):74-80,7.基金项目
重庆市国土房管科技事业发展"十二五"规划研究项目(CQGT-KJ-2014057) （CQGT-KJ-2014057）
