{"id":"840bf131-01e7-4dc1-8192-c20b905f6397","title":"湘东北横洞钴矿床黄铁矿和黄铜矿硫铅同位素数据","title_en":"Sulfur and lead isotopic data of pyrite and chalcopyrite in Hengdong cobalt deposit, Northeastern Hunan","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Word文档格式储存，无特殊数据格式和编号说明。","description":"本数据集包含湖南横洞钴矿床地区黄铁矿和黄铜矿硫、铅同位素数据。实验方法如下：将纯分离物粉碎成小块，并用石磨机研磨成直径为 0.5-2 毫米的粉末，用于 S 和 Pb 同位素分析。制备的硫化物分离液在 10% NaCl 溶液中浸出可溶性硫酸盐，并在去离子水中漂洗 3 次，然后溶解在 3 N HCl 中。过滤酸化的样品，向滤液中加入过量的 1 M BaCl2 以沉淀 BaSO4。准确称取0.1 mg BaSO4沉淀物，经漂洗、过滤、干燥后与过量的V2O5混合，在中国地质大学武汉分校生物地质与环境地质国家重点实验室分析其S同位素组成。硫同位素组成以标准 δ 符号表示，使用传统的 delta (δ34S) 符号表示相对于 V-CDT 的每千 (%) 变化。根据样品的重复分析和实验室标准 NBS 127 (21.1%)、IAEA SO-5 (0.49%) 和 IAEA SO-6 (-34.05%) 计算，硫同位素结果的分析误差约为 0.1%。四种黄铁矿分离物的铅同位素分析使用 GV Isoprobe-T 热电离质谱仪在中国北京铀地质研究所分析实验室由标准 NBS981 监测。分析程序包括在坩埚中使用 HF 和 HClO4 溶解样品，然后，碱性阴离子交换树脂纯化铅。标准 NBS981 的分析结果为 206Pb/204Pb = 16.937 ± 0.002 (2σ)、207Pb/204 Pb = 15.457 ± 0.002 (2σ) 和 208Pb/204Pb = 36.01 ±4 (2σ)。数据可供后期湖南横洞钴矿床及湘东北地区类似矿床的地球化学分析。\n以上数据已发表于SCI高级别期刊，数据真实可靠。数据以Word文档形式储存。","doi":"10.11888/Geo.tpdc.271424","projection":"","language":"zh","share_type":"online","east":113.8,"west":113.6,"south":28.3,"north":28.7,"scale":null,"crs":null,"filesize":0.02,"share_policy":"a","ts_created":"2021-06-09T20:25:42.101221+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-06-10T15:46:49.649039+08:00","time_description":"白垩纪","datas_group":3,"time_description_en":"Cretaceous","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":42423,"last_login":"2022-04-08T09:30:55.983765+08:00","username":"吴强林","email":"wuql@itpcas.ac.cn","is_active":true,"is_staff":true,"user_name":"吴强林"},"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":[521],"subtopics":{"metadata":"840bf131-01e7-4dc1-8192-c20b905f6397","three_pole":null,"third_pole":null},"username":"王智琳","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":351}