{"id":"1a186d1d-163a-40fc-8911-920a7b53d158","title":"阿尔金造山带吐格曼地区片麻状正长花岗岩、正片麻岩、黑云母花岗岩锆石U-Pb年龄和伟晶岩铌钽铁矿U-Pb数据","title_en":"Zircon U-Pb ages of gneissic syenogranite, orthogneiss and biotite granite and U-Pb data of columbite-tantalite in pegmatite in tugman area of Altun orogenic belt","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。文件名称为\"ZircolAge\"，代表锆石和铌钽铁矿年龄.","description":"本数据是锆石和铌钽铁矿U-Pb年龄。采集5件样品（T-5为片麻状正长花岗岩、T-1为正片麻岩、T-3和T-5为黑云母二长花岗岩，T-9为Li-Be矿化的伟晶岩），破碎后手工淘洗分离出重砂矿物，经磁选和电磁选后，在双目镜下挑出铌钽铁矿（约500粒）和锆石（大于1000粒）。选取代表性铌钽铁矿和锆石制靶后通过显微镜透射光和反射光照相，采用BSE对铌钽铁矿内部结构进行研究。锆石U-Pb年代学在西安地调中心的193 nm激光剥蚀系统（New Wave）和多接收器电感耦合等离子体质谱仪上完成。铌钽铁矿U-Pb年代学测试在中国地质科学院S155激光剥蚀系统和多接收器电感耦合等离子体质谱仪上完成。T-5锆石15个测点的加权平均年龄为900±9 Ma；T-1锆石20个测点的加权平均年龄为899±7 Ma；T-3和T-5样品的锆石21和14个测点的加权平均年龄分别为482±5 和475±5 Ma。T-9铌钽铁矿12个测点加权平均年龄为472±8 Ma。该数据厘清阿尔金造山带Li-Be成矿时代，为下一步该地区的Li-Be找矿提供方向。","doi":"10.11888/SolidEar.tpdc.271847","projection":"","language":"zh","share_type":"protected","east":87.9,"west":87.75,"south":38.25,"north":38.75,"scale":null,"crs":null,"filesize":0.18,"share_policy":"a","ts_created":"2021-11-30T15:16:14.199218+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-12-02T14:54:03.044448+08:00","time_description":"900百万年-450百万年","datas_group":0,"time_description_en":"900 million years - 450 million years","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":"0.1º - 0.25º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"1a186d1d-163a-40fc-8911-920a7b53d158","three_pole":null,"third_pole":null},"username":"毛亚晶","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":323}