{"id":"cd7ce17a-a74c-452f-b384-f878974c5805","title":"武当地体奥陶纪和三叠纪镁铁质岩墙锆石年龄和地球化学组成数据","title_en":"Zircon age and geochemical composition of Ordovician and Triassic mafic dykes in Wudang terrane","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-Pb同位素组成显示：南秦岭武当地区基性岩墙群存在两期不同的侵位时代，~460 Ma以及~220 Ma，远小于前人的获得的~680-650 Ma的结果。两期基性岩脉表现为相似的主量元素特征，但是截然不同的微量元素和同位素特征。早古生代的岩浆富集LREEs，LILEs以及HFSEs，具有EMII型地幔同位素特征，显示来自于类似OIB的富集地幔源区。早中生代的基性岩脉分为两类，其中一类亏损LREEs，LILEs以及HFSEs，具有DM型地幔同位素特征，表明来自于软流圈地幔源区，第二类相比于第一类岩脉有更高的Rb，Ba，K含量，同时具有EMI型同位素特征，表明它们的源区包含了显著的扬子板块下地壳岩石贡献。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":"dx.doi.org/10.1016/j.lithos.2016.10.009","projection":"","language":"zh","share_type":"online","east":111.45,"west":110.15,"south":32.15,"north":32.85,"scale":null,"crs":null,"filesize":4.2,"share_policy":"a","ts_created":"2021-05-28T09:46:06.011688+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-06-15T09:07:27.308367+08:00","time_description":"460 Ma之后","datas_group":3,"time_description_en":"Since 460 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":"cd7ce17a-a74c-452f-b384-f878974c5805","three_pole":null,"third_pole":null},"username":"陈福坤","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":347}