地球动力学

IF 1 Q3 GEOCHEMISTRY & GEOPHYSICS
S. Anikeyev, S. Rozlovska
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引用次数: 0

摘要

本文提出的研究目的是分析重力场和磁场各向异性变换的性质和地质信息价值,使用平均程序,包括分析Andreev Klushin的方法。势场的各向异性变换旨在检测和跟踪由地质剖面中的深层线性位错引起的细长异常或其链。各向异性变换性质的研究是基于对其深度特性的分析,以及理论和实际实验。该研究应用了重磁场各向异性异常中断层构造反射特征的分析方法,特别是以乌克兰喀尔巴阡山脉东南部为例。它是基于在重力和磁性各向异性异常中寻找深部断层和其他长结构构造位错表现的形态特征。该方法还建议通过将各向异性异常的形态、强度、大小和方向与已公布的区域构造和地质图进行比较来追踪这些元素。后果本文给出了诸如Andreev Klushin的背斜和阶地类型方法、各向异性平均和各向异性差分平均等各向异性变换的定义和算法。这项研究使我们能够在理论和实际例子中研究势场各向异性变换的地质信息价值。结果表明,在乌克兰喀尔巴阡山脉东南部各向异性重磁场的形态中,追踪到了长的局部异常。它们是由断层构造,特别是深层纵向和横向断层,以及沉积盖层的线性复杂性引起的。各向异性异常场的分析揭示了大型构造带的一些特征,反映了建基面和深层断层的区域行为;在此基础上,可以构建乌克兰喀尔巴阡山脉东南部地区的断层构造方案。这项研究追溯了东欧平台的基础从迈丹岩架和折叠喀尔巴阡山脉下的波库茨科-布科维阶喀尔巴提亚山脉的重大延伸。给出了若干各向异性变换的定义,并考虑了它们的性质。这项工作证实了势场各向异性转换形态在研究乌克兰喀尔巴阡山脉和邻近凹陷断层构造中的地质信息价值。势场各向异性变换的使用将提高追踪深层断层以及基础和沉积盖层中其他线性位错的可靠性和细节。断层构造研究是成功解决寻找和勘探有潜力的油气藏地区问题的重要因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
GEODYNAMICS
The aim of the research presented in this article is to analyze the properties and geological informative value of the anisotropic transformations of gravitational and magnetic fields, which use averaging procedures, including analysis of Andreev-Klushin's method. Anisotropic transformations of potential fields are designed to detect and track elongated anomalies or their chains, caused by deep linear dislocations in the geological section. The study of the anisotropic transformations properties is based on the analysis of their depth characteristics, as well as theoretical and practical experiments. The study applies the analysis method of fault tectonics reflection features in anisotropic anomalies of gravimagnetic fields, in particular, on the example of the South-East of the Ukrainian Carpathians. It is based on the search of morphological signs of manifestation of deep faults and other long structural-tectonic dislocations in gravitational and magnetic anisotropic anomalies. The method also suggests tracing these elements, relying on the comparison of morphology, intensity, size and direction of anisotropic anomalies with published regional tectonic and geological maps. Results. The paper presents definitions and algorithms of such anisotropic transformations as Andreev-Klushin's methods of anticlinal and terrace types, anisotropic averaging and anisotropic difference averaging. The research allowed us to perform study of the geological informative value of anisotropic transformations of potential fields on theoretical and practical examples. It is shown that in the morphology of anisotropic gravitational and magnetic anomalous fields in the south-east of the Ukrainian Carpathians long local anomalies are traced. They are caused by fault tectonics, in particular deep longitudinal and transverse faults, as well as linear complications into sedimentary cover. The analysis of anisotropic anomalous fields reveals a number of characteristic features of large tectonic zones reflecting regional behavior of the foundation surface and deep faults; on its basis fault tectonics schemes of the South-Eastern region of the Ukrainian Carpathians can be constructed. The study traced a significant extension of the foundation of the Eastern European platform from the Maidan's ledge and the Pokutsko-Bukovynian Carpathians under the Folded Carpathians. The definition of a number of anisotropic transformations is given and their properties are considered. The work substantiated geological informative value of the anisotropic transformations morphology of potential fields in the study of the Ukrainian Carpathians and adjacent depressions fault tectonics. The use of anisotropic transformations of potential fields will increase the reliability and detail of tracing deep faults, as well as other linear dislocations both in the foundation and in the sedimentary cover. The study of fault tectonics is an important factor in the successful solution of problems in the search and exploration of areas which are promising for oil and gas deposits.
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来源期刊
Geodynamics
Geodynamics GEOCHEMISTRY & GEOPHYSICS-
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