{"id":"235a82f9-2331-4a46-832d-eabb7d8a6980","title":"青藏高原中部仁错蛇绿岩锆石数据集","title_en":"Zircon data set of rencuo ophiolite in central Qinghai Xizang Plateau","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":"数据为压缩包形式，打开之后里面见以样品号15T***、16T***命名的文件，文件为锆石CL图像原图，均为tif格式文件，可以直接复制使用。","description":"此数据集为青藏高原中部仁错蛇绿岩的锆石阴极发光图像数据（CL图像）和年代学数据集。样品的岩性包括辉长岩、辉绿岩和斜长花岗岩，形成时代为160-150Ma左右，采样及拍摄时间为2019年-2020年。\n锆石的分选在河北省区域地质调查院完成，采用常规的重液和磁选方法进行分选，最后在双目显微镜下挑纯。样品靶的制备在中国地质科学院地质研究所完成，制成的样品靶直径为25 mm。\n锆石的阴极荧光图像分析在中国地质科学院地质研究所的阴极荧光分析系统（HITACH S-3000N型场发射环境扫描电镜和Gatan公司Chroma阴极荧光谱仪）上完成。锆石U-Pb定年数据在北京离子探针中心SHRIMP II型离子探针获得，测试过程中数据精度为~0.5-1Ma。\n这些数据为认识青藏高原中特提斯洋的形成演化提供了关键限定，同时对于研究大洋成因锆石具有对比意义。该数据关联结果已经发表在《Geological Society of America Bulletin》上，数据结果得到同行评审，数据质量真实可靠。","doi":"10.1130/b35500.1","projection":null,"language":"zh","share_type":"online","east":90.5,"west":89.5,"south":30.0,"north":31.5,"scale":50000,"crs":null,"filesize":70.0,"share_policy":"a","ts_created":"2021-11-12T15:33:34.767110+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2021-11-12T15:57:57.973556+08:00","time_description":"150Ma","datas_group":3,"time_description_en":"150Ma","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"李明慧","username":"李明慧","email":"liminghui@itpcas.ac.cn","is_cancel_expert":false}],"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":"100km - 1000km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"235a82f9-2331-4a46-832d-eabb7d8a6980","three_pole":null,"third_pole":null},"username":"张波","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":287}