{"id":"b296b8be-8c46-4992-9ce3-5dd7a645785a","title":"西藏北部唐古拉地区晚三叠世花岗岩地球化学数据集","title_en":"Geochemical data of granites in Tanggula area of northern Tibet","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":"文件名为TZUPb.xls代表放射性同位素U-Pb数据；TZREE.xls代表锆石稀土元素数据；文件名为TWRGD.xls代表全岩主微量地球化学数据和Sr-Nd-Pb-Hf同位素数据；TZHfO.xls代表锆石Hf-O同位素数据。","description":"本文数据为花岗岩的岩石全岩主量元素和微量元素、全岩Sr–Nd–Pb–Hf同位素和锆石U–Pb年龄和Hf–O同位素数据。样品采集自西藏北部唐古拉地区的正长花岗岩和二长花岗岩。放射性同位素年代学数据是通过激光剥蚀-电感耦合等离子体质谱仪和二次离子探针分析锆石U-Pb同位素获得的。岩石全岩主微量地球化学数据是通过X荧光光谱仪和电感耦合等离子体质谱仪分析获得的。岩石全岩Sr–Nd–Pb–Hf同位素是通过样品分离提纯-多接收电感耦合等离子体质谱仪分析获得的。锆石Hf-O同位素地球化学数据是通过激光剥蚀-多接收等离子体质谱仪分析获得的。通过获得的数据，可以限定区域内岩浆作用的时代、成因和形成背景。这些新数据，结合文献数据，进一步证实唐古拉大型花岗岩基侵位于南–北羌塘地体的同碰撞过程。其富集的Sr–Nd–Pb–Hf–O同位素组成指示其主要来源于再循环浅表物质的部分熔融，并有幔源物质加入。本文的研究表明同碰撞期间也可形成大型花岗质岩浆活动。","doi":"org/10.1016/j.gr.2020.12.023","projection":"","language":"zh","share_type":"online","east":93.3,"west":92.3,"south":32.2,"north":32.5,"scale":null,"crs":null,"filesize":1.8,"share_policy":"a","ts_created":"2021-05-10T23:34:35.299824+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2021-05-25T23:18:12.928612+08:00","time_description":"250万年来","datas_group":3,"time_description_en":"2.5 million years","data_format":null,"project":[11],"specials":[],"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":"100 year < x < 1000 year","spatial_resolution":"10km - 100km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[521],"subtopics":{"metadata":"b296b8be-8c46-4992-9ce3-5dd7a645785a","three_pole":null,"third_pole":null},"username":"王军","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":655}