{"id":"547b7bfa-9a47-4473-8ad8-d23df3940dcc","title":"西藏聂拉木奥陶系甲曲组剖面柱状图","title_en":"Stratigraphic column of Ordovician Jiaqu Formation in Nyalam, Tibet","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"文件名称为“西藏聂拉木奥陶系甲曲组剖面柱状图”，由研究地点（西藏聂拉木）+地层（奥陶系甲曲组）+数据类型（柱状图）组成，数据以tiff格式存储，可以用各类看图软件打开读取。","description":"西藏南部喜马拉雅地区的古生代地层发育连续、出露完整，是我国西藏古生代地层研究的经典地区之一。早期的地层划分和古生物研究始于上世纪20年代，最初认为珠峰地区地层年代主要属于石炭纪-二叠纪，之后在聂拉木亚来地区识别出奥陶纪标准化石，并建立起奥陶系标准序列。然而研究区奥陶系古生物学和地层研究进展异常缓慢，尚缺乏高精度的地层框架和古生物学综合研究。本次研究首次报道西藏聂拉木地区晚奥陶世介形类16属30种。亚来水厂剖面甲曲组产出介形类以古足介目类和圆足介目类为主，少量速足介目类。根据该剖面介形类时代特征可以推断甲曲组应属于晚奥陶世早期，大致为Sandbian-Katian期。介形类生态组合为艾菲尔生态型，指示甲曲组在沉积时为近岸浅水环境。晚奥陶世喜马拉雅地层区与华南扬子区及塔里木介形类面貌相似，应属于相同的生物地理分区。本数据集包括西藏聂拉木地区甲曲组剖面的柱状图和野外剖面照片。","doi":"10.11888/Geo.tpdc.271635","projection":"","language":"zh","share_type":"protected","east":86.11,"west":86.11,"south":28.38,"north":28.38,"scale":null,"crs":null,"filesize":19.0,"share_policy":"c","ts_created":"2021-07-22T13:59:37.475846+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-07-23T16:28:00.906272+08:00","time_description":"458-445百万年","datas_group":0,"time_description_en":"458-445Ma","data_format":null,"project":[11],"specials":["b6500306-f60b-4aa1-b0b6-0324d94866df"],"cite":null,"review_status":5,"review_invite":[{"user_name":"赵磊","username":"赵秦","email":"137qinruihong@163.com","is_cancel_expert":false}],"review_editor":{"id":66424,"last_login":"2021-08-31T17:09:37.293773+08:00","username":"YanHou","email":"ljz2hy@163.com","is_active":false,"is_staff":false,"user_name":"侯燕"},"data_sources":null,"temporal_resolution":"1000 year < x","spatial_resolution":"-","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"547b7bfa-9a47-4473-8ad8-d23df3940dcc","three_pole":null,"third_pole":null},"username":"史宇坤","review_time":null,"protected_duration":24,"protected_describe":null,"is_important":false,"hit_count":614}