青海省同仁地区存在干热岩资源的可能性探讨
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摘要
位于青藏高原东部的青海省同仁地区,构造活动强烈,地热地质条件优越,出露有水温46. 6℃的曲库乎温泉和82. 2℃的兰采温泉。高精度地面磁法资料显示,同仁县东侧的加吾乡地区,新近系地层下隐伏有高放射性的侵入岩体。通过对区域热构造背景条件的分析,结合可控源音频大地电磁测深法对断层的解译发现,该岩体系受区域带状热源所在的瓦里贡山-多禾茂走滑挤隆构造带控制而侵入就位的。综合分析认为,同仁县加吾乡地区发育有断层传导热和放射性热源共同供热的干热岩资源,系干热岩资源进一步勘查的有利地段。
Tongren area of Qinghai Province in the eastern part of the Qinghai Tibet Plateau has strong tectonic activities and superior geothermal conditions. The Qukuhu hot spring with water temperature of 46. 6 ℃ and Lancai hot spring of 82. 2 ℃ are exposed. High-precision ground magnetic data showed that high-radioactive intrusive rocks were hidden beneath the Neogene strata in Jiawu on the east of Tongren County. Based on the analysis of the regional thermal tectonic condition and the interpretation of the fault by the controlled source audio-frequency magnetotelluric( CSAMT) method,it was found that the rock system was affected by the regional belt heat source in the Waligong-Duohemao strike-uplift tectonic belt. According to the comprehensive analysis,the dry-hot rock resources co-heating with fault condition heat and radioactive heat source were developed in Jiawu,Tongren Country,which is a favorable section for the further exploration of dry hot rock resources.
Tongren area of Qinghai Province in the eastern part of the Qinghai Tibet Plateau has strong tectonic activities and superior geothermal conditions. The Qukuhu hot spring with water temperature of 46. 6 ℃ and Lancai hot spring of 82. 2 ℃ are exposed. High-precision ground magnetic data showed that high-radioactive intrusive rocks were hidden beneath the Neogene strata in Jiawu on the east of Tongren County. Based on the analysis of the regional thermal tectonic condition and the interpretation of the fault by the controlled source audio-frequency magnetotelluric( CSAMT) method,it was found that the rock system was affected by the regional belt heat source in the Waligong-Duohemao strike-uplift tectonic belt. According to the comprehensive analysis,the dry-hot rock resources co-heating with fault condition heat and radioactive heat source were developed in Jiawu,Tongren Country,which is a favorable section for the further exploration of dry hot rock resources.
引文
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[14]童珏,罗银飞,许伟林,等.青海省共和龙羊峡—贵德扎仓沟—同仁兰采地区干热岩资源调查评价[R].西宁:青海省环境地质勘查局,2017:85-103.TONG J,LUO Y F,XU W L,et al. Investigation and evaluation of dry hot rock resources in Gonghe Longyangxia Guide zha cang gou and Tongren Lanzi area,Qinghai province[R]. Xining:Qinghai Bureau of Environmental Geology,2017,85-103.
[15]汪洋,汪集旸,邓晋福,等.中国大陆地壳和岩石圈铀、钍、钾丰度的大地热流约束[J].地球物理学进展,2001,16(3):22-30.WANG Y,WANG J Y,DENG J F,et al. Heat flow constraint on the abundance of Uranium,Thorium and Potassium in crust and lithosphere of the continental area of China[J]. Process in Geophysics,2001,16(3):22-30.
[2]杨方,李静,任雪姣.中国干热岩勘查开发利用现状[J].资源环境与工程,2012,26(4):339-341.YANG F,LI J,REN X J. Prospecting and exploitative present situation of hot dry rock in China[J]. Resource Environment&Engineering,2012,26(4):339-341.
[3]蔺文静,甘浩男,王贵玲.我国东南沿海干热岩赋存前景及与靶区选址研究[J].地质学报,2016(90):2043-2058.LIN W J,GAN H N,WANG G L. Occurrence prospect of HDR and target site selection study in Southeastern of China[J]. Acta Geologica Sinica,2016(90):2043-2058.
[4]汪集旸,胡圣标,庞忠和,等.中国大陆干热岩地热资源潜力评估[J].科技导报,2012,30(32):25-31.WANG J Y,HU S B,PANG Z H,et al. Estimate of geothermal resources potential for hot dry rock in the continental area of China[J]. Science&Technology Review,2012,30(32):25-31.
[5]甘浩男,王贵玲,蔺文静,等.中国干热岩资源主要赋存类型与成因模式[J].科技导报,2015,33(19):22-27.GAN H N,WANG G L,LIN W J,et al. Research on the occurrence type and genetic models of hot dry rock resources in China[J]. Science&Technology Review,2015,33(19):22-27.
[6]蔺文静,王凤元,甘浩男,等.福建漳州干热岩资源选址与开发前景分析[J].科技导报,2015,33(19):28-34.LIN W J,WANG F Y,GAN H N,et al. Site selection and development prospect of a hot dry rock resource project in Zhangzhou geothermal field,Fujian province[J]. Science&Technology Review,2015,33(19):28-34.
[7]郭鹏飞,洪文之,王华书,等.青海省新街幅1∶20万区域水文地质普查报告[R].西宁:中国人民解放军〇〇九二六部队,1982:103-131.GUO P F,HONG W Z,WANG H S,et al. A survey report on the regional hydrogeology of the 1∶20 million in the new street in Qinghai[R]. Xining:00926 troops of Chinese People's Liberation Army,1982:103-131.
[8]李小林,吴国禄,雷玉德,等.青海省贵德扎仓寺地热成因机理及开发利用建议[J].吉林大学学报(地球科学版),2016,46(1):220-229.LI X L,WU G L,LEI Y D,et al. Suggestions for geothermal genetic mechanism and exploitation of Zhacang Temple geothermal energy in Guide county,Qinghai province[J]. Journal of Jilin University,2016,46(1):220-229.
[9]雷玉德,童珏,杨占梅,等.青海省干热岩资源类型及典型地热模式[J].南水北调与水利科技,2017,15(4):117-122.LEI Y D,TONG J,YANG Z M,et al. Resource types and typical geothermal models of hot dry rocks in Qinghai[J]. South-to-North Water Transfers and Water Science&Technology,2017,15(4):117-122.
[10]严维德.共和盆地干热岩特征及利用前景[J].科技导报,2015,33(19):54-57.YANG W D. Characteristics of Gonghe basin hot dry rock and its utilization prospects[J]. Science&Technology Review,2015,33(19):54-57.
[11]孙鸿烈,郑度.青藏高原形成演化与发展[M].广州:广东科技出版社,1998:73-98.SUN H L,ZHENG D. The formation,evolution and development of the Qinghai Tibet plateau[M]. Guangzhou:Guangdong Science and Technology Press,1998:73-98.
[12]孙延贵.西秦岭-东昆仑造山带的衔接转换与共和坳拉谷[D].西安:西北大学,2004.SUN Y G. West Qinling mountains:The connecting transition between the East Kunlun orogenic belt and Gonghe aulacogen[D]. Xian:Northwestern University,2004.
[13]邱鹏成,王永刚,杨广华.青海地区井水温度(地温)的数字化观测及地震前兆监测效能评估[J].地震地磁观测与研究,2010,31(4):66-71.QIU P C,WANG Y G,YANG G H. Digitalized well-water temperature observation and monitoring efficiency evaluation of earthquake precursor in the Qinghai region[J]. Seismological and Geomagnetic Observation and Research Seismol Geomag Obser Res,2010,31(4):66-71.
[14]童珏,罗银飞,许伟林,等.青海省共和龙羊峡—贵德扎仓沟—同仁兰采地区干热岩资源调查评价[R].西宁:青海省环境地质勘查局,2017:85-103.TONG J,LUO Y F,XU W L,et al. Investigation and evaluation of dry hot rock resources in Gonghe Longyangxia Guide zha cang gou and Tongren Lanzi area,Qinghai province[R]. Xining:Qinghai Bureau of Environmental Geology,2017,85-103.
[15]汪洋,汪集旸,邓晋福,等.中国大陆地壳和岩石圈铀、钍、钾丰度的大地热流约束[J].地球物理学进展,2001,16(3):22-30.WANG Y,WANG J Y,DENG J F,et al. Heat flow constraint on the abundance of Uranium,Thorium and Potassium in crust and lithosphere of the continental area of China[J]. Process in Geophysics,2001,16(3):22-30.
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