{"id":"e15f597e-3e4c-4018-9c3d-723af1a8122a","title":"胶东半岛早白垩世中基性岩墙锆石年龄和地球化学组成数据","title_en":"Zircon age and geochemical composition of Early Cretaceous intermediate basic dyke in Jiaodong Peninsula","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：胶北地区玲珑金矿区和苏鲁造山带昆嵛山-文登地区中-基性脉岩主要由辉绿岩和闪长岩构成，SiO2含量变化较大，从45.5~60.7 wt.%, 锆石U-Pb年龄~108-118 Ma。这些中-基性脉岩具有高钾钙碱性和钾玄质特征，高MgO和Mg#，Cr和Ni含量。在胶北地区，中-基性脉岩主要有辉绿岩、煌斑岩和闪长岩，SiO2含量整体上略低于苏鲁造山带出露的中-基性岩脉，而MgO含量相对较高。这些中-基性脉岩都具有岛弧岩浆岩的微量元素组成特征，富集LILE和LREE和Pb元素，亏损高场强元素，如Nb和 Ta。两个地区的中-基性岩脉都具有富集型的Sr-Nd-Pb同位素组成特征，但相比于苏鲁造山带，胶北地区的基性岩具有更富集的Sr-Nd-Pb特征。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":"10.1086/693860","projection":"","language":"zh","share_type":"online","east":122.15,"west":120.05,"south":36.85,"north":37.65,"scale":null,"crs":null,"filesize":2.3,"share_policy":"a","ts_created":"2021-05-28T10:35:25.922384+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2021-06-03T10:07:54.622290+08:00","time_description":"120 Ma以来","datas_group":3,"time_description_en":"Since 120 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":"e15f597e-3e4c-4018-9c3d-723af1a8122a","three_pole":null,"third_pole":null},"username":"陈福坤","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":376}