{"id":"c70e29a7-7b80-4765-b8c5-12b9d0c13014","title":"西藏改则县洞错地区退变榴辉岩的年代学和矿物学数据","title_en":"Geochronological and mineralogical data of retrograde eclogites from Dongcuo area, Gaize County, 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":"数据以Excel数据表格形式保存。金红石微量元素数据保存在MineralData；锆石定年数据保存在ZirconAgeSIMS.；金红石年代学数据保存在RutileAgeSIMS。","description":"本次研究对班公湖-怒江缝合带西段的洞错榴辉岩进行了系统的岩相学研究、金红石LA-ICP-MS 微量元素分析、锆石SIMS U-Pb定年以及金红石 SIMS U-Pb定年。研究结果显示洞错地区榴辉岩经历了峰期榴辉岩相变质作用，以后后期高压麻粒岩相和角闪岩的退变质作用的叠加。年代学研究显示，榴辉岩的原岩年龄为250Ma，麻粒岩相叠加时代为177Ma，晚期角闪岩退变发生在168Ma。该项研究为班公湖-怒江特提斯样中生代演化提供了新的模型，同时揭示了平板俯冲可能是导致榴辉岩慢速折返（热折返）以及强烈麻粒岩化的主要机制。","doi":"10.11888/Geo.tpdc.271315","projection":"","language":"zh","share_type":"online","east":85.12,"west":84.47,"south":32.39,"north":32.42,"scale":null,"crs":null,"filesize":0.04,"share_policy":"a","ts_created":"2021-05-21T15:29:50.505256+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-05-26T00:44:53.593099+08:00","time_description":"250百万年至168百万年","datas_group":3,"time_description_en":"250 million to 168 million years","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":[522],"subtopics":{"metadata":"c70e29a7-7b80-4765-b8c5-12b9d0c13014","three_pole":null,"third_pole":null},"username":"王军","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":563}