{"id":"3de6def2-e2b4-43d3-bbd4-d3bd57871725","title":"西藏明赛矿区石英H-O同位素数据（2018-2022）","title_en":"H-O isotopic data of quartz in Mingsai mining area, Tibet (2018-2022)","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":"文件命名：西藏明赛矿区石英O-H同位素数据（2018-2021）以Excel表格形式储存，文件名称为“西藏明赛矿区石英O-H同位素数据.xlsx”，其中“西藏明赛矿区石英O-H同位素数据”代表该数据内容主题。\n数据读取方式：该数据集的Excel表格可直接用Office程序打开，主题内容为西藏明赛矿区石英O-H同位素数据。","description":"氢、氧同位素组成测试由北京核工业地质研究院利用MAT-253质谱仪分析测试完成。首先将H、O同位素测试的样品在双目镜下进行挑选提纯，纯度达到99%以上，研磨至200目。本次氢同位素分析采用锌还原法测定，在低温下烘干去除吸附水和次生包裹体，加热至600℃从样品中提取原生流体包裹体的水，然后用Zn置换出水中的H并对H2进行质谱分析，氢同位素的分析精度为±1%。氧同位素采用硅酸盐及氧化物矿物中氧同位素组成的五氟化溴法测定，在500～680℃的真空条件下使 BrF5与样品反应，对产生的O2进行质谱分析，氧同位素的分析精度为±0.2%。H-O同位素值表明成矿流体主要来自变质地壳或地幔的活化，并有大气降水的加入，不同流体混合作用是控制含金硫化物沉淀的关键机制。","doi":"10.11888/SolidEar.tpdc.272138","projection":"","language":"zh","share_type":"online","east":91.0,"west":89.0,"south":28.0,"north":31.0,"scale":null,"crs":null,"filesize":0.01,"share_policy":"a","ts_created":"2022-03-05T13:39:23.460677+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-03-16T14:35:29.697551+08:00","time_description":"","datas_group":3,"time_description_en":"","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":"--","spatial_resolution":"--","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[808],"subtopics":{"metadata":"3de6def2-e2b4-43d3-bbd4-d3bd57871725","three_pole":null,"third_pole":null},"username":"张林奎","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":17}