{"id":"28b19ddd-a12a-4bd4-ab02-a1a4d6fcb686","title":"羌塘盆地雀莫错地区上三叠统波里拉组—巴贡组下部地层的碳同位素和矿物学数据","title_en":"Carbon isotope and mineralogical data of the lower part of the upper Triassic Bolila Bagong formation in the Quemocuo area, Qiangtang Basin","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":"数据以Word格式存储，文件名称以QMC为开头，代表雀莫错地区。具体样品编号、实验方法、具体数据等见Word","description":"本数据集展示了青藏高原羌塘盆地雀莫错地区上三叠统波里拉组—巴贡组下部地层的高分辨率无机碳同位素（(δ13Ccarb)和有机碳碳同位素（δ13Corg）记录和矿物学的数据资料。样品采集自羌塘盆地雀莫错地区上三叠统波里拉组—巴贡组下部地层。锆石U-Pb定年是通过LA-MC-ICP-MS进行，采用侯可军等人（2009）的方法。取得如下成果：巴贡组钙质细砂岩层碎屑锆石最大沉积年龄232.5 ±3.3  Ma，结合前人菊石、双壳类等生物地层学研究，将巴贡组地层时代归为卡尼期。在该剖面中，硅碎屑供应增强，方解石和伊利石含量急剧下降，表明CPE期间古气候由干旱向温暖湿润转变。在该剖面中，无机碳同位素（(δ13Ccarb)和有机碳碳同位素（δ13Corg）均出现了负偏，这可能与全球碳循环的扰动和富含12C的二氧化碳的释放有关。在CPE开始时期，雀莫错地区C同位素负偏的程度相比其他地区较轻。同期Wrangellia大火成岩省的喷发和甲烷的释放是造成δ13C显著负偏移的最可能原因。","doi":"10.11888/Geo.tpdc.271465","projection":"","language":"zh","share_type":"online","east":91.5,"west":91.1,"south":33.5,"north":34.0,"scale":null,"crs":null,"filesize":0.5,"share_policy":"a","ts_created":"2021-06-01T15:29:22.900923+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-06-20T13:52:41.599345+08:00","time_description":"100百万年来","datas_group":3,"time_description_en":"For 100 million years","data_format":null,"project":[11],"specials":["b6500306-f60b-4aa1-b0b6-0324d94866df"],"cite":null,"review_status":5,"review_invite":[{"user_name":"颜茂都","username":"颜茂都","email":"maoduyan@itpcas.ac.cn","is_cancel_expert":true}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"1000 year < x","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"28b19ddd-a12a-4bd4-ab02-a1a4d6fcb686","three_pole":null,"third_pole":null},"username":"韩中鹏","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":555}