Crystalline-Basement Crystalline Graphite Deposit Dataset on the Northern Margin of the Upper Yangtze and North Sichuan
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摘要:
上扬子北缘川北地区出露的基底地层发育双层结构，其中上层的褶皱基底早已发现尖山、坪河、庙坪等中—大型、超大型石墨矿；但是直到最近，才在下层的结晶基底后河岩群汪家坪岩组细粒石英岩中发现了石墨矿。该矿体长约200米，宽约6.7米，矿体平均厚度4.9米，矿石平均品位5.13%。矿物组合为：石英+石墨+云母+黄铁矿+赤铁矿。该成果在上扬子北缘地区的发现，扩大了该区域的找矿前景，为区内晶质石墨矿的找矿工作提供了新的方向，同时为四川巴中地区超大型晶质石墨矿基地建设提供了新的资源潜力保障。数据集包括Excel表格数据，2个*.xls类型文件，记录了样品固定碳测试结果和氧化物测试数据。
Abstract:The basement strata outcropping on the northern margin of the upper Yangtze and North Sichuan have developed a dual-layer structure, where medium-large and extra-large graphite deposits have been found at Jianshan, Pinghe and Miaoping etc., which are located on fold basements in the upper layer. Until recently, however, a graphite deposit is found in fine-grain quartzite of the Wangjiaping Formation, Houhe Group complex of the crystalline basement in its lower part. The rock mass is about 200 m long, 6.7 m wide, 4.9 m thick on average and 5.13% in average grade. The ore combination is quartz + graphite + mica + pyrite + hematite. This discovery on the northern margin of the upper Yangtze expands the prospecting foreground in the region, provides new opportunities to prospect crystalline graphite ores therein and gives a new guarantee in resource potential to build an extra-large crystalline graphite ore base in Bazhong, Sichuan. The dataset contains data in Excel sheets, including 2 type files *.xls, recording results from fixed carbon testing of samples and data from oxide testing.
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Key words:
- Graphite deposit /
- Crystalline basement /
- Upper Yangtze /
- Houhe complex Group /
- Dataset
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图 1 Basement structure on the northern margin of the Upper Yangtze and northern Sichuan as well as location of newly discovered graphite deposit
图 2 Mineralization features of the Houhe Group-complex Wangjiaping Formation graphite deposit
表 1 数据库（集）元数据简表
条目 描述 数据库（集）名称 上扬子北缘川北地区结晶基底晶质石墨矿数据集 数据库（集）作者 罗茂金，中国地质调查局成都地质调查中心
马志鑫，中国地质调查局成都地质调查中心
孙志明，中国地质调查局成都地质调查中心
黄 腾，四川冶金局605地质队
任京伟，成都理工大学
姜 岩，四川冶金局605地质队数据时间范围 2016—2018年 地理区域 四川省川北地区（南江县） 数据格式 *.xlsx 数据量 上扬子北缘结晶基底石墨矿TC51固定碳分析结果表，数据量大小14 kb
上扬子北缘结晶基底石墨矿TC51氧化物分析结果表，数据量大小32 kb
数据服务系统网址 http://dcc.cgs.gov.cn 基金项目 中国地质调查局地质调查项目“龙门山—滇中成矿带通安—宁蒗地区地质矿产调查”（DD20160017）资助 语种 中文 数据库（集）组成 该数据集是由2个Excel表格组成，表格名称分别“上扬子北缘结晶基底石墨矿TC51固定碳分析结果表”、“上扬子北缘结晶基底石墨矿TC51氧化物分析结果表”。 
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表 2 样品特征表
样号 岩矿石名称 样长（m） 固定碳含量（%） H1 条带状石墨矿化石英岩 1.00 4.34 H2 碎裂石墨矿化石英岩 1.00 9.44 H3 石墨矿化石英岩 1.50 3.70 H4 石墨矿化石英岩 1.40 4.05 H5 硅化石墨矿化石英岩 1.00 7.79 H6 石墨矿化石英岩 0.80 2.02 H7 黑色石英岩 1.00 0.995
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表 3 TC51固定碳分析结果表
序号 字段名称 量纲 数据类型 实例 1 样号 无 字符串 TC51-H1 2 分析号 无 字符串 A171960115 3 固定碳 % 浮点型 4.34
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表 4 TC51氧化物分析结果表
序号 字段名称 量纲 数据类型 实例 1 样号 无 字符串 TC51-H1 2 分析号 无 字符串 A174340098 3 SiO2 % 浮点型 84.97 4 Al2O3 % 浮点型 2.82 5 Fe2O3 % 浮点型 2.04 6 TFe % 浮点型 2.25 7 FeO % 浮点型 1.06 8 CaO % 浮点型 0.780 9 MgO % 浮点型 0.640 10 K2O % 浮点型 0.796 11 Na2O % 浮点型 0.057 12 TiO2 % 浮点型 0.137 13 P2O5 % 浮点型 0.616 14 S % 浮点型 0.049 15 H2O+ % 浮点型 0.924 16 H2O− % 浮点型 0.403 17 V2O5 % 浮点型 0.007 18 CO2 % 浮点型 0.265 19 Cu % 浮点型 0.019 20 灰份 % 浮点型 94.11 21 挥发份 % 浮点型 2.16
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表 1 Metadata Table of Database (Dataset)
Items Description Database(dataset) name Crystalline-Basement Crystalline Graphite Deposit Dataset on the Northern Margin of the Upper Yangtze and North Sichuan Database(dataset) authors Luo Maojin, Chengdu Center, China Geological Survey
Ma Zhixin, Chengdu Center, China Geological Survey
Sun Zhiming, Chengdu Center, China Geological Survey
Huang Teng, Geologic Team 605 of Sichuan Metallurgic Bureau
Ren Jingwei, Chengdu University of Technology
Jiang Yan, Geologic Team 605 of Sichuan Metallurgic BureauData acquision time 2016—2018 Geographic area North Sichuan (Nanjiang county) Data format *.xlsx Data size TC51 fixed carbon analysis results of crystalline basement graphite deposit in north of upper Yangtze, data size: 14kb
TC51 oxide analysis results of crystalline basement graphite deposit in north of upper Yangtze, data size: 32kbData service system URL http://dcc.cgs.gov.cn Fund project China Geology Survey project “Geological Mineral Survey in Tongan–Ninglang, Longmen Mountain–Central Yunnan Metallogenic Zone” (DD20160017) Language Chinese Database(dataset) composition The dataset consists of 2 Excel sheets titled as “TC51 fixed carbon analysis result sheet of crystalline basement graphite deposit on the northern margin of upper Yangtze” and “TC51 oxide analysis result sheet of crystalline basement graphite deposit on the northern margin of upper Yangtze”.
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表 2 Sample features
Sample no. Rock and ore name Sample length (m) Content of fixed carbon (%) H1 Banded graphite-mineralized quartzite 1.00 4.34 H2 Cataclastic graphite-mineralized quartzite 1.00 9.44 H3 Graphite-mineralized quartzite 1.50 3.70 H4 Graphite-mineralized quartzite 1.40 4.05 H5 Silicified graphite-mineralized quartzite 1.00 7.79 H6 Graphite-mineralized quartzite 0.80 2.02 H7 Black quartzite 1.00 0.995
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表 3 TC51 fixed carbon analysis result sheet
No. Field name Dimension Data category Real example 1 Sample no. None Character string TC51-H1 2 Analysis No. None Character string A171960115 3 Fixed carbon % Floating-point type 4.34
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表 4 TC51 oxide analysis result sheet
No. Field name Dimension Data category Real example 1 Sample no. None Character string TC51-H1 2 Analysis No. None Character string A174340098 3 SiO2 % Floating-point type 84.97 4 Al2O3 % Floating-point type 2.82 5 Fe2O3 % Floating-point type 2.04 6 TFe % Floating-point type 2.25 7 FeO % Floating-point type 1.06 8 CaO % Floating-point type 0.780 9 MgO % Floating-point type 0.640 10 K2O % Floating-point type 0.796 11 Na2O % Floating-point type 0.057 12 TiO2 % Floating-point type 0.137 13 P2O5 % Floating-point type 0.616 14 S % Floating-point type 0.049 15 H2O+ % Floating-point type 0.924 16 H2O− % Floating-point type 0.403 17 V2O5 % Floating-point type 0.007 18 CO2 % Floating-point type 0.265 19 Cu % Floating-point type 0.019 20 ash % Floating-point type 94.11 21 volatiles % Floating-point type 2.16
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