{"id":"0c06b152-bb89-470f-a393-53eb154a9973","title":"西藏羌塘中部香桃湖地区石榴石-十字石云母片岩的年代学及矿物学数据集","title_en":"Chronological and mineralogical data sets of garnet Staurolite mica schists from xiangtaohu area, central Qiangtang, 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":"所有数据均已excel表格保存。碎屑锆石年龄数据存放在ZirconData文件，白云母Ar-Ar定年数据存放在MuscoviteArAr文件，矿物学数据存放在MineralsData文件。","description":"项目研究对羌塘中部香桃湖地区的石榴石十字石云母片岩进行了系统的岩石学、矿物学、碎屑锆石分析以及白云母Ar-Ar定年。岩石学和矿物学研究显示，样品经历了早期蓝片岩相的地温高压变质作用和晚期的角闪岩相变质作用的叠加。碎屑锆石分析表明，样品物源来源于俯冲带上盘石炭纪岛弧岩浆作用。白云母Ar-Ar结果为263-259 Ma，代表其底辟进入上盘中下地壳后的冷却年龄。该项研究首次从变质演化角度揭示了大洋板块俯冲过程中的俯冲侵蚀作用，同时暗示在低温/高压变质带中出露的这类遭受中-高温变质叠加的特殊岩石可能对识别古俯冲带中的俯冲侵蚀作用具有重要启示意义。","doi":"10.11888/Geo.tpdc.271322","projection":"","language":"zh","share_type":"online","east":84.95,"west":84.67,"south":34.25,"north":34.32,"scale":null,"crs":null,"filesize":0.06,"share_policy":"a","ts_created":"2021-05-21T18:02:19.907692+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-05-25T15:11:16.069686+08:00","time_description":"260百万年以来","datas_group":0,"time_description_en":"260 million years ago","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":"1000 year < x","spatial_resolution":"0.01º - 0.05º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[521],"subtopics":{"metadata":"0c06b152-bb89-470f-a393-53eb154a9973","three_pole":null,"third_pole":null},"username":"王军","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":818}