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鄂尔多斯周缘地质构造对地热资源形成的控制作用
引用本文:王贵玲,刘志明,蔺文静.鄂尔多斯周缘地质构造对地热资源形成的控制作用[J].地质学报,2004,78(1):44-51.
作者姓名:王贵玲  刘志明  蔺文静
作者单位:1. 南京大学地球科学系,210093;中国地质科学院水文地质环境地质研究所,石家庄,050061
2. 中国地质科学院水文地质环境地质研究所,石家庄,050061
基金项目:国土资源部地质大调查项目(编号DKD2002005)
摘    要:地热资源是一种宝贵的清洁矿产资源,属于新能源家族中重要成员之一。地热资源的形成严格受地质构造控制。随着我国能源勘探工作重点西移,在鄂尔多斯盆地特别是在其周缘断陷盆地中发现了储量丰富的中-低温地热资源,但是,对其形成机理与属性研究却明显不足,在一定程度上制约了该地区地热资源的广泛利用。本文在总结研究鄂尔多斯及其周缘断陷盆地地质构造特征的基础上,系统全面地总结了地质构造和地热研究成果,定性分析了大地热流、地温梯度和地温场分布与地质构造的关系。研究认为,鄂尔多斯块体是一个相对完整、断裂不发育的构造单元,块体内大地热流、地温梯度整体偏低。然而鄂尔多斯块体周缘构造边界带则呈现出环状高值异常,带内热流值、地温梯度都比块体内部高。说明鄂尔多斯周缘地质构造控制着地热资源的形成。

关 键 词:鄂尔多斯周缘  地质构造  大地热流  地热资源
修稿时间:2003年8月13日

Tectonic Control of Geothermal Resources in the Peripheral of Ordos Basin
WANG Guiling,LIU Zhiming,LIN Wenjing.Tectonic Control of Geothermal Resources in the Peripheral of Ordos Basin[J].Acta Geologica Sinica,2004,78(1):44-51.
Authors:WANG Guiling  LIU Zhiming  LIN Wenjing
Institution:WANG Guiling,LIU Zhiming,LIN Wenjing Department of Earth Science,Nanjing University, Institute of Hydrogeology and Environmental Geology,CAGS,Shijiazhuang,Hebei
Abstract:Geothermal reservoir is a precious and cleanly source of energy. A certain relationship exists between the geothermal activity and the tectonic. With the energy exploration in China gradually shifting to the west, abundant low-medium temperature geothermal resources have been found in the Ordos Basin, especially in the rift basins in the periphery of the Ordos Basin. However, the formation mechanism and property of geothermal resources in the Ordos Basin and its peripheral areas have not been studied due to the different working objectives. Based on the analysis of tectonics in Ordos Basin, the study results of geological structure and geothermal resources in the Ordos Basin and its peripheral areas have been summarized systematically in this paper. The relation of tectonic distribution to the heat flow, geothermal gradient and geothermal field distribution are studied qualitatively. It's suggested, that the value of heat flow and geothermal gradient in Ordos block are lower, while a ring high anomaly belt appears in the periphery of the block. The geothermal activities distribute mainly in the periphery of Ordos, that is to say, high heat flow, high geothermal gradient and distribution of tectonics in clusters are consistent in the periphery of Ordos Basin, indicating that the tectonics control the form of geothermal resources in the periphery of Ordos Basin.
Keywords:periphery of Ordos Basin  tectonics  geothermal flow  geothermal resources
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