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本文以华北平原北部地温场与浅层地层构造关系为前提,在综合分析区内大量深部地球物理探测成果的基础上,研究了壳、幔结构构造及其热状态等深部地质构造和热活动的主要特点,并根据区域地温场特征及高低地温的分布规律与深部地质构造密切相关的事实,较为系统地探讨了地热和深部地质构造的关系。总结出本区地壳薄、上地幔隆起是构成区域地温场总体偏高,中,低温地热资源丰富的深部构造背景,多数高热流、高地温的分布区与壳、幔低速高导层埋藏浅、厚度大的部位相对应。确认深部地质构造对地热资源的形成和展布具有明显控制作用。研究深部地质构造,特别是重点研究上地幔的隆、拗和壳、幔低速高导层的厚度、埋深、热状态及其分布规律,对正确地分析、认识和划分不同成因的地热类型,有效地进行地热资源预测和指导地热资源的普查、勘探均具有重要的理论意义和实用价值。
Based on the comprehensive analysis of a large number of deep geophysical exploration results in the region, this paper studies the relationship between the geothermal tectonics and the thermal activity in the northern North China Plain. According to the fact that the geothermal field characteristics and the distribution of high and low ground temperature are closely related to the deep geological structure, the relationship between geothermal and deep geological structure is systematically discussed. It is concluded that the crust is thin and the uplift of the upper mantle is the deep tectonic setting with high geopotential field and abundant geothermal resources in the region. Most high-heat flow, Thick parts of the corresponding. It is confirmed that deep geological structure has significant control over the formation and distribution of geothermal resources. Depth study of deep geological formations, especially focusing on the thickness, burial depth, thermal state and distribution of the low-velocity and high-permeability strata of the upper mantle in the upper mantle, and on the analysis of the geothermal types with different origins, Effectively carrying on geothermal resource forecasting and guiding geothermal resource census and exploration have important theoretical significance and practical value.