{"id":"a723df4b-24a0-4154-be26-6b77991c1766","title":"西秦岭柏家庄过铝质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 Baijiazhuang peraluminous granite in West Qinling","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：柏家庄岩体以出现白云母并呈过铝质为特征；Ba vs. Zr明显正相关，锆石微量元素中molar (REE+Y)与molar P呈1：1线性关系，以及岩石低的氧逸度条件及大量继承锆石的出现，表明柏家庄岩体为S型花岗岩；低的CaO/Na2O比值指示其源区为变泥质岩。地球化学特征表明，西秦岭S型花岗岩可分为高Sr低REE (Group A) 和低Sr高REE (Group B)两类，源区不一致熔融 (主要为熔融的云母/斜长石含量比)，即白云母水质熔融和脱水熔融能很好解释二者主量和微量元素特征，即Group A具有高的Eu/Eu*值，CaO含量，低的Nb, Ta含量以及低的锆石和独居石饱和温度，相较于Group B。 然而Rb与(87Sr/86Sr)i, 以及P2O5与εNd(t)之间为负相关，暗示不一致熔融无法解释柏家庄岩体较大的Sr-Nd同位素变化。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.2019.04.003","projection":"","language":"zh","share_type":"online","east":104.85,"west":102.15,"south":33.45,"north":35.25,"scale":null,"crs":null,"filesize":6.2,"share_policy":"a","ts_created":"2021-05-28T09:27:18.326474+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2021-06-03T14:23:18.251961+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":"a723df4b-24a0-4154-be26-6b77991c1766","three_pole":null,"third_pole":null},"username":"陈福坤","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":329}