卡鲁安伟晶岩锂矿的地气场特征及找矿意义
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摘要
在伟晶岩锂矿勘查中,为了解决常规物探方法由于矿体与围岩差异不显著、应用效果不佳、化探法对隐伏锂矿效果不明显的问题,以新疆卡鲁安伟晶岩锂矿为研究区,布设了两条总长6 605 m的地气研究剖面,完成了191个测点的国内外首例地气测量勘查伟晶岩锂矿研究工作,每个测点获得Li、Rb、Be、Cs、Nb、Y等39种元素的含量,据此研究了卡鲁安研究区伟晶岩锂矿的地气异常特征。结果表明,在伟晶岩锂矿脉的倾斜方向一侧,均能捕获包含Li、Rb、Be、Cs、Nb、Y等多种元素的显著地气异常;在无矿(化)伟晶岩上方,Rb元素的地气异常幅度会增大,其它元素异常幅度则明显变小,Be不出现地气异常;其它岩性上方,没有地气异常出现。研究证实了地气法对寻找伟晶岩锂矿是准确、有效的,对在伟晶岩锂矿勘查中应用地气法找矿提供了理论参考和技术支持。
In conventional geophysical exploration method for pegmatite lithium mineral exploration, there exist the problems that the difference between the orebody and the surrounding rock is not significant, the application effect is poor, and the geochemical exploration method has no obvious effect on the concealed lithium deposit. In view of such a situation, the authors investigated the technical problems related to the application of geogas method in the exploration of pegmatite lithium deposits. With Kalu'an in Xinjiang as the study area, the authors deployed two geogas research sections with a total length of 6 605 m, and completed the case study of pegmatite lithium deposits with 191 measuring points, which was performed for the first time both in China and abroad. The values of 39 elements such as Li, Rb, Be, Cs, Nb, and Y were determined. On such a basis, the characteristics of geogas anomalies in the Kaluan pegmatite lithium deposit were studied. The results show that significant gas anomalies containing Li, Rb, Be, Cs,Nb, Y, and other elements can be captured on the tilted side of the pegmatite lithium veins, that, above the barren pegmatite, the abnormal amplitude of geogas in Rb element will increase, and the anomaly amplitude of other elements will obviously decrease, with no gas anomaly, and that, in other lithologies, there is no abnormal geogas. It is confirmed that the geogas method is accurate and effective in the search for pegmatite lithium deposits.
In conventional geophysical exploration method for pegmatite lithium mineral exploration, there exist the problems that the difference between the orebody and the surrounding rock is not significant, the application effect is poor, and the geochemical exploration method has no obvious effect on the concealed lithium deposit. In view of such a situation, the authors investigated the technical problems related to the application of geogas method in the exploration of pegmatite lithium deposits. With Kalu'an in Xinjiang as the study area, the authors deployed two geogas research sections with a total length of 6 605 m, and completed the case study of pegmatite lithium deposits with 191 measuring points, which was performed for the first time both in China and abroad. The values of 39 elements such as Li, Rb, Be, Cs, Nb, and Y were determined. On such a basis, the characteristics of geogas anomalies in the Kaluan pegmatite lithium deposit were studied. The results show that significant gas anomalies containing Li, Rb, Be, Cs,Nb, Y, and other elements can be captured on the tilted side of the pegmatite lithium veins, that, above the barren pegmatite, the abnormal amplitude of geogas in Rb element will increase, and the anomaly amplitude of other elements will obviously decrease, with no gas anomaly, and that, in other lithologies, there is no abnormal geogas. It is confirmed that the geogas method is accurate and effective in the search for pegmatite lithium deposits.
引文
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Chen Yang,Zhang Hui and Zhao Jingyu.2016.The metallogenic element diffusion model and its influencing factors in the alteration of pegma
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Guo Xuji and Ma Zhanlong.2015.Analysis on geological characteristics and genesis of Halong rare metal deposit in Fuhai County,Xinjiang[J].Geology of Northwest China,48(3):355~361(in Chinese with English abstract).
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Ke Dan,Wu Guodong,Liu Hongjun,et al.2016.Methods of deep penetration geochemistry for uranium exploration and its research progress[J].World Nuclear Geoscience,33(3):160~166(in Chinese with English abstract).
Liu Bin,Zhou Sichun,Ge Liangquan,et al.2011.Geoelectric anomaly characteristics and prospecting significance of the Huangshaping type lead-zinc deposit in Qianlishan-Qitianling ore district,southern Hunan[J].Acta Geologica Sinica,32(4):413~418(in Chinese with English abstract).
Malmqvist L and Kristansson K.1984.Experiment evidence for an ascending micro-flow of geogas in the ground[J].Earth and Planetary Science Letters,70:407~416.
Tang Zhen,Zhou Sichun,Liu Xiaohui,et al.2011.Application of gas measurement in the search for deep buried ore[J].Metal Mine,(1):120~122(in Chinese with English abstract).
Tong Chunhan,Li Juchu,Ge Liangquan,et al.1997.Migration of matter by upwelling air in the earth’s crust and principle of geogas measurement[J].Mineral Rocks,17(3):83~88(in Chinese with English abstract).
Wang Denghong,Liu Lijun,Dai Hongzhang,et al.2017.On the particularity and prospecting direction of large and super large lithium gabbro deposits at home and abroad[J].Earth science,42(12):2 243~2 257(in Chinese with English abstract).
Wang Mingqi,Gao Yuyan,Zhang Deen,et al.2006.Exploration breakthrough and significance of geogas survey in north Qilian Basin area[J].Geophysical Exploration and Geochemical Exploration,30(1):7~12(in Chinese with English abstract).
You Qingzhi,2016.Lithium-The most important element for future needs[J].Xinjiang Nonferrous Metals,39(B07):88~91(in Chinese with English abstract).
Yuan Lulu,Wang Mingqi and Hu Jiale.2014.Study of Au prospecting bygeogas in Sunite gold deposit[J].Advanced Materials Research,962/965:646~649.
Zhou Sichun,Liu Xiaohui,Tong Chunhan,et al.2014.Geogas measurement technology and its application in prospecting for hidden mines[J].Acta Geologica Sinica,(4):736~754(in Chinese with English abstract).
陈阳,张辉,赵景宇.2016.新疆卡鲁安矿区807号伟晶岩脉近脉围岩蚀变中成矿元素扩散模型及其影响因素[J].地球化学,45(3):268~280.
郭旭吉,马占龙.2015.新疆福海县哈龙稀有金属矿床地质特征及成因浅析[J].西北地质,48(3):355~361.
胡波,周四春,刘晓辉,等.2012.大深度隐伏多金属矿地气探测试验[J].物探与化探,36(6):1 068~1 072.
柯丹,吴国东,刘洪军,等.2016.铀矿勘查深穿透地球化学方法及其研究进展[J].世界核地质科学,33(3):160~166.
刘斌,周四春,葛良全,等.2011.湘南千里山-骑田岭矿集区黄沙坪型铅锌矿地气异常特征及找矿意义[J].地球学报,32(4):413~418.
唐桢,周四春,刘晓辉,等.2011.地气测量在寻找深部隐伏矿中的应用[J].金属矿山,7(1):120~122.
童纯菡,李巨初,葛良全,等.1997.上升气流对物质的迁移及地气测量原理[J].矿物岩石,17(3):83~88.
王登红,刘丽君,代鸿章,等.2017.试论国内外大型超大型锂辉石矿床的特殊性与找矿方向[J].地球科学,42(12):2 243~2 257.
汪明启,高玉岩,张得恩,等.2006.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,30(1):7~12.
游清治,2016.锂---未来需求的最重要元素[J].新疆有色金属,39(B07):88~91.
周四春,刘晓辉,童纯菡,等.2014.地气测量技术及在隐伏矿找矿中的应用研究[J].地质学报,(4):736~754.
Chen Yang,Zhang Hui and Zhao Jingyu.2016.The metallogenic element diffusion model and its influencing factors in the alteration of pegma
tite near vein surrounding rocks in No.807,Karuan mining area,Xinjiang[J].Geochemistry,45(3):268~280(in Chinese with English abstract).
Guo Xuji and Ma Zhanlong.2015.Analysis on geological characteristics and genesis of Halong rare metal deposit in Fuhai County,Xinjiang[J].Geology of Northwest China,48(3):355~361(in Chinese with English abstract).
Hu Bo,Zhou Sichun,Liu Xiaohui,et al.2012.Geogas survey experiment for exploration of concealed polymetallic deposit at greatdepth[J].Geophysical&Geochemical Exploration,36(6):1 068~1 072(in Chinese with English abstract).
Li J K,Zou T R,Liu X F,et al.2015.The metallogenetic regularities of lithium deposit in China[J].Acta Geologica Sinica,89(2):652~670.
Ke Dan,Wu Guodong,Liu Hongjun,et al.2016.Methods of deep penetration geochemistry for uranium exploration and its research progress[J].World Nuclear Geoscience,33(3):160~166(in Chinese with English abstract).
Liu Bin,Zhou Sichun,Ge Liangquan,et al.2011.Geoelectric anomaly characteristics and prospecting significance of the Huangshaping type lead-zinc deposit in Qianlishan-Qitianling ore district,southern Hunan[J].Acta Geologica Sinica,32(4):413~418(in Chinese with English abstract).
Malmqvist L and Kristansson K.1984.Experiment evidence for an ascending micro-flow of geogas in the ground[J].Earth and Planetary Science Letters,70:407~416.
Tang Zhen,Zhou Sichun,Liu Xiaohui,et al.2011.Application of gas measurement in the search for deep buried ore[J].Metal Mine,(1):120~122(in Chinese with English abstract).
Tong Chunhan,Li Juchu,Ge Liangquan,et al.1997.Migration of matter by upwelling air in the earth’s crust and principle of geogas measurement[J].Mineral Rocks,17(3):83~88(in Chinese with English abstract).
Wang Denghong,Liu Lijun,Dai Hongzhang,et al.2017.On the particularity and prospecting direction of large and super large lithium gabbro deposits at home and abroad[J].Earth science,42(12):2 243~2 257(in Chinese with English abstract).
Wang Mingqi,Gao Yuyan,Zhang Deen,et al.2006.Exploration breakthrough and significance of geogas survey in north Qilian Basin area[J].Geophysical Exploration and Geochemical Exploration,30(1):7~12(in Chinese with English abstract).
You Qingzhi,2016.Lithium-The most important element for future needs[J].Xinjiang Nonferrous Metals,39(B07):88~91(in Chinese with English abstract).
Yuan Lulu,Wang Mingqi and Hu Jiale.2014.Study of Au prospecting bygeogas in Sunite gold deposit[J].Advanced Materials Research,962/965:646~649.
Zhou Sichun,Liu Xiaohui,Tong Chunhan,et al.2014.Geogas measurement technology and its application in prospecting for hidden mines[J].Acta Geologica Sinica,(4):736~754(in Chinese with English abstract).
陈阳,张辉,赵景宇.2016.新疆卡鲁安矿区807号伟晶岩脉近脉围岩蚀变中成矿元素扩散模型及其影响因素[J].地球化学,45(3):268~280.
郭旭吉,马占龙.2015.新疆福海县哈龙稀有金属矿床地质特征及成因浅析[J].西北地质,48(3):355~361.
胡波,周四春,刘晓辉,等.2012.大深度隐伏多金属矿地气探测试验[J].物探与化探,36(6):1 068~1 072.
柯丹,吴国东,刘洪军,等.2016.铀矿勘查深穿透地球化学方法及其研究进展[J].世界核地质科学,33(3):160~166.
刘斌,周四春,葛良全,等.2011.湘南千里山-骑田岭矿集区黄沙坪型铅锌矿地气异常特征及找矿意义[J].地球学报,32(4):413~418.
唐桢,周四春,刘晓辉,等.2011.地气测量在寻找深部隐伏矿中的应用[J].金属矿山,7(1):120~122.
童纯菡,李巨初,葛良全,等.1997.上升气流对物质的迁移及地气测量原理[J].矿物岩石,17(3):83~88.
王登红,刘丽君,代鸿章,等.2017.试论国内外大型超大型锂辉石矿床的特殊性与找矿方向[J].地球科学,42(12):2 243~2 257.
汪明启,高玉岩,张得恩,等.2006.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,30(1):7~12.
游清治,2016.锂---未来需求的最重要元素[J].新疆有色金属,39(B07):88~91.
周四春,刘晓辉,童纯菡,等.2014.地气测量技术及在隐伏矿找矿中的应用研究[J].地质学报,(4):736~754.
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