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Geochemical characteristics and indication significance of seogas survey in the Tianyu Cu-Ni deposit of Hami |
Wei HAN1,2, Hua-Zhong LIU1,2, Cheng-Wen WANG1,2, Yun-Tao SONG1,2, Qiao-Lin WANG1,2, Mu KONG1,2 |
1. Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China 2. Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone,CAGS, Langfang 065000, China |
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Abstract The Tianyu Cu-Ni deposit is located in the Gobi desert area. The geochemical characteristics of elements such as Ni, Co, Fe, Mg and Cu in the geogas were statistically analyzed by geogas survey at the scale of 1:10 000 in the range of 2 km 2 in the Tianyu Cu-Ni deposit. According to the indication effect of each element on mineralization and geophysical and geochemical anomalies, five comprehensive geochemical anomalies were delineated, and Ni,Co,Cu,Fe,V indicators can effectively indicate the position of the orebody, thus exhibiting good prospecting effect in the Tianyu Cu-Ni deposit. The survey work provides new ideas for mineral exploration in the Gobi desert area.
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Received: 30 November 2018
Published: 31 May 2019
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Generalized geological map of Tianyu Cu-Ni deposit and distribution of geogas samplings
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岩体名称 | 19号基性—超基性岩体 | 20号基性—超基性岩体 | 形态 | 不规则状 | 脉状 | 长度 | 85 m | 1 140 m | 最大宽度 | 16 m | 66 m | 蚀变特征 | 强纤闪石化、绿泥石化、弱绢云母化、高岭土化 | 强纤闪石化、绢云母化、高岭土化、金云母化、滑石化、伊丁石化 | 矿化特征 | 褐铁矿化、弱孔雀石化 | 褐铁矿化、孔雀石化 |
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Characteristics of basic-ultrabasic rock bodies of Tianyu Cu-Ni deposit
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Diagram of geogas sampling device
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元素 | 均值 | 标准差 | 变异系数 | 元素 | 均值 | 标准差 | 变异系数 | Au | 0.005 | 0.001 | 0.278 | Dy | 0.004 | 0.001 | 0.182 | Ag | 0.006 | 0.001 | 0.119 | Er | 0.005 | 0.001 | 0.214 | Bi | 0.011 | 0.001 | 0.121 | Eu | 0.004 | 0.001 | 0.23 | Co | 0.009 | 0.005 | 0.511 | Gd | 0.019 | 0.004 | 0.188 | Cu | 0.743 | 0.24 | 0.323 | La | 0.055 | 0.002 | 0.044 | Fe | 0.031 | 0.003 | 0.095 | Nd | 0.044 | 0.005 | 0.105 | Mg | 0.034 | 0.003 | 0.085 | Pr | 0.012 | 0.001 | 0.077 | Ni | 0.113 | 0.04 | 0.352 | Sm | 0.01 | 0.003 | 0.256 | Pb | 1.22 | 0.031 | 0.026 | Tb | 0.002 | 0.001 | 0.333 | V | 0.084 | 0.01 | 0.119 | Y | 0.018 | 0.001 | 0.074 | Zn | 3.48 | 3.44 | 0.989 | Yb | 0.002 | 0.001 | 0.333 | Ce | 0.099 | 0.006 | 0.064 | | | | |
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Geochemical characteristic parameters of element contents of geogas bsorbents
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元素 | 平均值 | 背景值 | 中位数 | 标准离差 | 变化系数 | 最大值 | 最小值 | Au | 0.011 | 0.006 | 0.006 | 0.029 | 2.62 | 0.447 | 0.001 | Ag | 0.057 | 0.021 | 0.013 | 0.251 | 4.4 | 3.6 | 0.004 | Bi | 0.014 | 0.012 | 0.012 | 0.012 | 0.862 | 0.17 | 0.009 | Co | 0.051 | 0.027 | 0.025 | 0.137 | 2.70 | 1.52 | 0.007 | Cu | 2.82 | 1.28 | 1.24 | 13.3 | 4.72 | 246 | 0.63 | Fe | 0.073 | 0.047 | 0.05 | 0.145 | 1.99 | 1.76 | 0.03 | Mg | 0.087 | 0.05 | 0.05 | 0.37 | 4.25 | 6.4 | 0.031 | Ni | 0.487 | 0.257 | 0.23 | 1.63 | 3.34 | 29.3 | 0.1 | Pb | 1.80 | 1.36 | 1.35 | 2.53 | 1.40 | 41.7 | 1.06 | V | 0.152 | 0.102 | 0.103 | 0.282 | 1.85 | 2.99 | 0.064 | Zn | 13.8 | 10.5 | 9.81 | 34.2 | 2.47 | 606 | 2.41 | Ce | 0.259 | 0.118 | 0.12 | 1.28 | 4.95 | 19.3 | 0.09 | Dy | 0.017 | 0.006 | 0.006 | 0.102 | 5.95 | 1.53 | 0.002 | Er | 0.014 | 0.005 | 0.005 | 0.081 | 5.87 | 1.21 | 0.002 | Eu | 0.015 | 0.005 | 0.006 | 0.081 | 5.34 | 1.38 | 0.002 | Gd | 0.049 | 0.022 | 0.021 | 0.247 | 5.04 | 3.77 | 0.011 | Ho | 0.004 | 0.001 | 0.001 | 0.022 | 6.31 | 0.333 | 未检出 | La | 0.151 | 0.066 | 0.066 | 0.77 | 5.11 | 11.6 | 0.052 | Lu | 0.002 | 0.001 | 0.001 | 0.015 | 8.03 | 0.226 | 未检出 | Nd | 0.124 | 0.055 | 0.054 | 0.614 | 4.94 | 9.2 | 0.037 | Pr | 0.032 | 0.014 | 0.014 | 0.162 | 5.05 | 2.45 | 0.01 | Sm | 0.026 | 0.012 | 0.012 | 0.127 | 4.93 | 1.9 | 0.004 | Tb | 0.005 | 0.002 | 0.002 | 0.025 | 5.41 | 0.39 | 0.001 | Tm | 0.002 | 0.001 | 0.001 | 0.012 | 7.47 | 0.186 | 未检出 | Y | 0.093 | 0.026 | 0.025 | 0.629 | 6.76 | 9.3 | 0.016 | Yb | 0.011 | 0.003 | 0.003 | 0.085 | 7.50 | 1.28 | 未检出 |
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Geochemical parameters of geogas samples in Tianyu Cu-Ni deposit
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Anomaly distribution map of geogas elements in Tianyu Cu-Ni deposit 1—granitic mylonite; 2—granitic gneiss; 3—sericite-quartz schist; 4—migmatite; 5—basic-ultrabasic rock; 6—gabbro; 7—diorite; 8—gneiss granite; 9—mylonitized granite; 10—main orebody; 11—fault; 12—anomal number; 13—anomaly in 1:50 000 geochemical exploration; 14—magnetic anomalies in 1:10 000 geophysical exploration
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[1] |
Kristiansson K, Malmqvsit L . Trace elements in the geogas and their relation to bedrock composition[J]. Geoexporation, 1987,24:517-534.
|
[2] |
Malqvist L, Kristansson K . Experiment evidence for an ascending micro-flow of geogas in the ground[J]. Earth and Planetary Science Letters, 1984,70:407-416.
|
[3] |
童纯菡, 梁兴中, 李巨初 . 地气测量研究及在东季金矿的试验[J]. 物探与化探, 1992,16(6):445-451.
|
[3] |
Tong C H, Liang X Z, Li J C . The tentative geogas survey in the Dongji gold deposit[J]. Geophysical &Geochemical Exloration, 1992,16(6):445-451.
|
[4] |
刘应汉, 任天祥, 汪明启 , 等. 隐伏矿床区地气实验及效果[J]. 有色金属与勘查, 1995,4(6):355.
|
[4] |
Liu Y H, Ren T X, Wang M Q , et al. The results of geogas survey in hidden mining areas[J]. Geological Exploration for Non-ferrous Metals, 1995,4(6):355.
|
[5] |
汪明启, 高玉岩, 张得恩 , 等. 地气测量在北祁连盆地区找矿突破及其意义[J]. 物探与化探, 2006,30(1):7-12.
|
[5] |
Wang M Q, Gao Y Y, Zhang D E , et al. Breakthrough in mineral exploration using geogas survey in the basin area of northern Qilian region and its significance[J]. Geophysical & Geochemical Exloration, 2006,30(1):7-12.
|
[6] |
唐金荣, 杨忠芳, 汪明启 .地气测量方法研究及应用[J].物探与化探 , 2004, 28(3):193(2):128-138.
|
[6] |
Tang J R, Yang Z F, Wang M Q , et al. Method and application of geogas measremengts[J]. Geophysical & Geochemical Exloration , 2004, 28(3):193(2):128-138.
|
[7] |
王学求, 谢学锦, 卢荫庥 . 地气动态提取技术的研制及在寻找隐伏矿上的初步试验[J]. 物探与化探, 1995,3(19):161-171.
|
[7] |
Wang X Q, Xie X J, Lu Y L . Dynamic collection of geogas and its preliminary application in search for concealed deposits[J]. Geophysical & Geochemical Exloration, 1995,3(19):161-171.
|
[8] |
丁西同, 周四春, 赵春江 , 等. 滇西东山铅锌矿床地气与土壤地球化学特征[J]. 金属矿山, 2013,449(11):95-99.
|
[8] |
Ding X T, Zhou S C, Zhao C J , et al. The geogas and soil geochemical characteristics of Pb-Zn deposit in dongshan the western of Yunnan province[J]. Metal Mine, 2013,449(11):95-99.
|
[9] |
杨亚新, 刘庆成, 万俊 . 地气测量寻找砂岩型铀矿的模拟实验及技术研究[J]. 华东地质学院学报, 2001,4(24):271-272.
|
[9] |
Yang Y X, Liu Q C, Wan J . Research of simulation experiment and technique in applying geogas methed to sandstone uranium deposits exploration[J]. Journal of East China Geological Institute, 2001,4(24):271-272.
|
[10] |
童纯菡, 李巨初, 葛良全 , 等. 地壳内上升气流对物质的迁移及地气测量原理[J]. 矿物岩石, 1997,17(3):83-88.
|
[10] |
Tong C H, Li J C, Ge L Q , et al. Transportation of the ore-forming metters by ascending gas flows in the crust and the mechanism of geogas prospecting[J]. Mineral Petrol, 1997,17(3):83-88.
|
[11] |
汪明启, 高玉岩 . 利用铅同位素研究金属矿床地气物质来源:甘肃蛟龙掌铅锌矿床研究实例[J].地球化学, 2007(04):391-399.
|
[11] |
Wang M Q, Gao Y Y . Tracing source of geogas with lead isotopes:A case study in Jiaolongzhang Pb-Zn deposit,Gansu province[J]. Geochimica, 2007(04):391-399.
|
[12] |
葛良全, 童纯菡 . 隐伏断裂上方地气异常特征及其机理研究[J]. 成都理工学院学报, 1997,24(3):29-35.
|
[12] |
Ge L Q, Tong C H . The character of geogas anomaly on consealed faults and its mechanism[J]. Journal of Chengdu University of Technology, 1997,24(3):29-35.
|
[13] |
葛良全, 童纯菡 . 地气测量技术寻找隐伏断裂带的研究[J]. 核技术, 1998,21(4):238-241.
|
[13] |
Ge L Q, Tong C H . Geogas characters on concealed fault zone[J]. Nuclear Techniques, 1998,21(4):238-241.
|
[14] |
鲁人齐, 王多义, 刘亚伟 , 等. 川西新场气田地气测量试验[J]. 物探与化探, 2008,6(32):678-681.
|
[14] |
Lu R Q, Wang D Y, Liu Y W , et al. Experimental geogas survey in the xinchang gas field of western Sichuan[J]. Geophysical & Geochemical Exloration, 2008,6(32):678-681.
|
[15] |
谢克文, 周四春, 张文宇 , 等. 利用地气场寻找隐伏温泉带——以广东暖水村为例[J]. 科学技术与工程, 2015,15(30):9-13.
|
[15] |
Xie K W, Zhou S C, Zhang W Y , et al. Using geogas field to prospect the concealed hot springs zone-taking the warm water village as an example in Guangdong[J]. Science Technology and Engineering, 2015,15(30):9-13.
|
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