{"id":"b69f53d1-08c4-44d5-a33f-c844ef753029","title":"佛坪穹窿混合岩和花岗岩锆石年龄和地球化学组成数据","title_en":"Zircon age and geochemical composition of the Foping dome migmatite and granite","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":"姓名 + 年份，Excel","description":"LA-ICP-MS锆石定年分析、XRF和 ICP-MS方法的元素地球化学分析和TIMS方法获得的Sr-Nd同位素组成显示：南秦岭佛坪穹窿的混合岩类记录了多期部分熔融事件。混合岩的原岩可以分为两种，第一种混合岩记录了晚三叠世的年代学特征（平均年龄为214-211Ma），第二种混合岩同时记录新元古代以及晚三叠世的年龄特征。混合岩的矿物组合特征显示含有大量的富铝矿物，锆石U-Pb年代学记录复杂（2907-187Ma），而混合岩锆石的核部含有一些古老锆石记录，包括一些太古代以及新元古代的年代学记录，边部的年代学记录为晚三叠至早侏罗世（224-187Ma）。五龙岩体花岗岩类的锆石U-Pb年代学特征指示其结晶年龄为219-192Ma，且花岗岩类地球化学特征差异较大，其中低Mg#花岗岩类（Mg#＜50）按照地球化学特征大致可以分成两组，第一组具有高Sr/Y比值特征(Sr/Y＞40)，第二组花岗岩类具有正常的Sr/Y比值特征（Sr/Y＜40）。数据源自科研项目“国家重点研发计划“燕山期重大地质事件的深部过程与资源效应”（2016YFC0600404)。","doi":"doi.org/10.1016/j.lithos.2017.10.024","projection":"","language":"zh","share_type":"online","east":108.5,"west":107.5,"south":33.15,"north":33.65,"scale":null,"crs":null,"filesize":3.5,"share_policy":"a","ts_created":"2021-05-28T09:00:47.166527+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-06-15T09:07:28.632356+08:00","time_description":"240 Ma之后","datas_group":3,"time_description_en":"Since 240 Ma","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":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[537],"subtopics":{"metadata":"b69f53d1-08c4-44d5-a33f-c844ef753029","three_pole":null,"third_pole":null},"username":"陈福坤","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":285}