上扬子西北缘飞仙关组碳酸盐岩显微图像数据集  

A carbonate micrograph dataset of Feixianguan Formation in northwestern margin of Upper Yangtze

作　　者：柴寒冰 邢凤存[1,2] 古强 陈孝全 周绍鹏[1,2] Chai Hanbing;Xing Fengcun;Gu Qiang;Chen Xiaoquan;Zhou Shaopeng(State Key Laboratory of Oil and Gas Reservoir Geology and Exploration,Chengdu University of Technology,Chengdu 610059,P.R.China;Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,P.R.China)

机构地区：[1]油气藏地质与开发工程国家重点实验室(成都理工大学),成都610059 [2]成都理工大学沉积地质研究院,成都610059

出　　处：《中国科学数据（中英文网络版）》2020年第3期126-135,共10页China Scientific Data

摘　　要：上扬子西北缘早三叠世飞仙关组沉积期发育碳酸盐岩台地-盆地相沉积,显微镜下岩石结构、构造等特征研究,可为晚二叠世生物大灭绝事件后的早三叠世特殊的沉积环境及生物复苏研究提供直观依据。精选上扬子西北跨开阔台地、台地边缘、台前斜坡-盆地多相带的下三叠统飞仙关组4条野外剖面,系统取样并制作了普通薄片,在此基础上,对不同剖面岩石类型、矿物成分、岩石结构、构造、古生物、成岩作用等进行了系统展示,并提供了系统的显微照片。本数据集共提供了330个岩石薄片的1082张偏光显微照片及薄片信息表。研究可为全球晚二叠世生物大灭绝后的早三叠世古气候、古环境、古生物复苏等研究以及该时期不同相带沉积分异研究提供基本素材,也可为该层系油气勘探提供一定基础资料支撑。Carbonate platform-basin facies developed during the early Triassic Feixianguan Formation in the northwestern margin of the Upper Yangtze.Studies of rock characteristics under microscope,such as its structure and formation,provide intuitive evidence for research on sedimentary environment and biological resuscitation in the early Triassic after the Late Permian mass extinction.In this study,we selected four field sections of the Lower Triassic Feixianguan Formation from open platform,platform margin,and pre-platform slope-basin multiphase belt in northwestern Upper Yangtze,from which common slices were systematically sampled and made.Photomicrographs of the slices were taken to systematically display the type,mineral composition,structure,formation,paleontology,diagenesis,etc.of the rock sections.This dataset consists of two parts,including a total of 1082 polarizing micrographs of 330 rock samples from geological four sections,and a sheet information table.The dataset can provide basic material for research on the early Triassic paleoclimate,paleoenvironment,and paleontological resuscitation,or research on sedimentary differentiation of different facies in this period.It also provides data support for oil and gas survey on this particular strata.

关 键 词：上扬子西北缘 下三叠统飞仙关组 碳酸盐岩 生物大灭绝 显微图集 

分 类 号：P588.245[天文地球—岩石学]