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辽宁南部的大地热流及岩石圈热结构

Terrestrial Heat Flow and Thermal Structure of the Lithosphere in South Liaoning

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【作者】 张汝惠武冀新张晚霞

【Author】 Zhang Ruhui Wu Jixin Zhang Wanxia(Institute of Geology,SSB)

【机构】 国家地震局地质研究所国家地震局地质研究所

【摘要】 本文论述了辽南地区地温分布和热流分布的特征。在热流值、岩石导热率及放射性生热率等数据基础上计算出深部温度。经分析岩石圈热结构后发现,辽东块隆区和下辽河断陷盆地间地温场存在明显的横向不均匀性。并求得下辽河盆地岩石圈深度74km,辽东区岩石圈深度约127km,两者之间的过渡区约深88km。最后,在分析了海城地震发生的原因后提出“热—水—震”的观点。

【Abstract】 The features of terrestrial heat flow distribution and the thermal structure in South Liaoning area have been described in this paper. A study has been made on the calculation of the temperature in depth on basis of the measurement of heat flow value, thermal conductivity and radioactive thermal productivity of rocks. It is found that an obvious lateral inhomogeneity on the geothermal field exists between two different tectonic units: Uplifted East Liaoning Fault Block and Lower Liaohe Fault Basin. The thickness of the lithosphere has also been estimated, which is about 74km in Lower Liaohe Basin, 127km in East Liaoning Block,and about 88km in the transitional zone. A new point of view named "Thermo-Water-Seism "has been proposed in the last of the paper, after analyzing the source development of the Haicheng earthquake.

【基金】 国家地震局地震科学基金资助课题
  • 【文献出处】 中国地震 ,Earthquake Research In China , 编辑部邮箱 ,1991年03期
  • 【被引频次】20
  • 【下载频次】160
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