{"id":"530e4d7d-1cac-4b9a-8cc7-8654c3852b6f","title":"福建闽西南大坪花岗斑岩型钽铌矿的数据","title_en":"Data of Daping granite porphyry tantalum niobium deposit in southwest Fujian","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Excel文件存储,可直接使用Excel工作薄打开。\"NbTa-UPb\"代表钽铌矿物U-Pb同位素组成和年龄数据, \"MinMaj\"代表矿物的主量元素。","description":"近年来，稀有金属因其重要性和战略意义而备受国内外关注。铌和钽作为重要的稀有资源，在我国华南地区有着多期次、多类型的成矿事件。2020-2021年间选取最近在福建永定大坪发现的特大型花岗斑岩型钽铌矿作为研究对象，利用LA-ICP-MS对钽铌矿物进行U-Pb年代学研究。钽铌矿物U-Pb同位素测年数据由LA-ICP-MS分析获得，钽铌矿物主量元素由EMPA分析获得。从而为确定该矿床的成矿年龄和类型提供依据。研究结果显示，大坪钽铌矿的成矿年龄为183 Ma左右，该年龄与成岩年龄在误差范围内一致，表明华南地区存在早侏罗世花岗斑岩型钽铌成矿事件。此外，大坪早侏罗世花岗斑岩型钽铌矿在成矿时间和类型上是对华南钽铌成矿研究的重要补充，同时为华南未来的钽铌找矿方向提供了新的思路。","doi":"","projection":"","language":"zh","share_type":"online","east":120.4,"west":115.8,"south":23.5,"north":28.2,"scale":null,"crs":null,"filesize":3.0,"share_policy":"a","ts_created":"2021-05-28T16:35:16.777359+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-06-04T10:32:01.054607+08:00","time_description":"早侏罗世","datas_group":3,"time_description_en":"Early Jurassic","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"王浩","username":"王浩_iggcas","email":"wanghao@mail.iggcas.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":"Yearly","spatial_resolution":"10km - 100km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"530e4d7d-1cac-4b9a-8cc7-8654c3852b6f","three_pole":null,"third_pole":null},"username":"陈 钦","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":301}