| 东南沿海地区地温场的形成及其分布规律 |
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| 引用本文： | 王钧.东南沿海地区地温场的形成及其分布规律[J].地震地质,1985,7(1):49. |
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| 作者姓名： | 王钧 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 本文从四个方面讨论了东南沿海地区地温场的形成及其分布规律:1.区域地质构造条件,其中着重讨论了岩浆岩的分布及其与地质构造的关系;2.测温资料的分析和处理;3.地温分布的主要特征;4.控制地温场的主要因素。本文除对深部地壳结构及区域地质构造等主要控制因素进行了讨论外,还就岩浆岩中特别是燕山期花岗岩中放射性元素的含量及其蜕变产生热对地温场可能产生的影响进行了探讨。 从而认为东南沿海地区的地温场形成模式主要有传导型的地温场和传导附加以对流型的地温场两种类型
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| 关 键 词： | 区域地温场 温泉 东南沿海地区 地温梯度 花岗岩类岩石 分布规律 深大断裂带 地下热水 测温 区域地质构造 |
DISTRIBUTIONS AND FORMATION OF THE GEOTHERMAL FIELD ALONG THE COAST, SOUTHEASTERN CHINA |
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| Abstract: | The study area,an old continent block with a Coledoman folding basement,is located 20-31.5°N,115-122°E,along the southeastern edge of the Eurasian plate.Granite and volcanic rocks are widespread throughout this area with an age decreasing from west to east.The Yanshanian granite exists mainly along the coast and the tectonic activity also shows an increase to the coast.For the coastal area the geothermal gradient and the geotemperature show a higher value ranging from 50-70℃ at a depth of 1000m and 2000m,respectively,and the highest up to 60℃ and 90℃,somtimes even to 100℃and 130℃.Presented here are some data from the Wuyi Mountains,the Moyang Basin and the Jinqu Basin and the like.Distributions and formation of the geothermal field are dependent on deep structures in the earth's crust and the regional geotemperature,on the crustal thickness as well as on the geological structures.The occurrence and distribution of the hot springs are correlated with two major deep faults striking NE and NW.In addition the content of radioactive elements in the Yanshenian granite is about two times higher than that of the contemporaneous granite found in North China.Two types of geothermal field may be distinguished in the study area:1) conduction and 2) conduction superposed by hot water conduction |
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