| 杨渊,张瑾爱,郑康,辛园园.基于正则化重力异常向下延拓在蟒岭岩体西部地区二维地质反演中的应用[J].矿产勘查,2018,9(9):1779-1784 |
| 基于正则化重力异常向下延拓在蟒岭岩体西部地区二维地质反演中的应用 |
| Study on two-dimensional geological inversion in small Qinling Mountains area based on regularized downward continuation |
| 投稿时间：2018-07-15 |
| DOI： |
| 中文关键词: 正则化 向下延拓 二维地质反演 深地探测 |
| 英文关键词: Regularization, downward continuation,two dimensional geological inversion, deep exploration |
| 基金项目:陕西省公益性地质调查项目——陕西秦岭造山带中生代构造体制与成矿作用研究(编号:20130301)资助。 |
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| 中文摘要: |
| 通常勘探工作中测量到的重磁数据,是由不同地质要素叠加而成,其包含了许多宝贵的信息,是不同规模和埋深的地质体的综合反映。若能从观测到的重磁数据中将不同地质体产生的异常分离出来,就能分别研究其地质含义。为此,文章应用正则化向下延拓的方法处理重磁资料,可实现利用位场划分垂向迭加场源体的目的。现我国探地探测一般小于500 m,而目前世界先进水平勘探开采深度已达2500～4000 m,现有勘测深度已经远远不能满足我国经济发展需求,因此需要研究一种高效、可靠的地球物理方法来探测地球深部。文章探索性的使用正则化下延来反演地表3000 m深度的地质内容,希望借此为二维地质反演提供初始模型起到抛砖引玉的作用。 |
| 英文摘要: |
| Usually, the gravity and magnetic data measured in exploration work is made up of different geological elements. It contains a lot of valuable information, which is a comprehensive reflection of geological bodies with different scale and depth. If the anomalies of different geological bodies can be separated from the observed gravity and magnetic data, their geological meaning can be studied separately. Therefore, this paper applies the regularized downward continuation method to deal with the gravity and magnetic data, and can realize the purpose of dividing the vertical superposition source body by the bit field. Our ground detection is generally less than 500 meters, and the current exploration mining depth of the world’s advanced level has reached 2500 meters to 4000 meters, the depth of investigation can not meet the demand of China’s economic development, it is necessary to study an efficient and reliable geophysical method to detect deep ball. In this paper, we explore the use of regularized downward continuation to retrieve the depth of 3000 meters of the earth’s surface.It is hopes that it will paly a role in the study of this method in the future |
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