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Locating the southern boundary of the East European Platform within the north-western Black Sea shelf according to gravimetric data 根据重力数据确定位于黑海陆架西北部的东欧地台南部边界
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-09-25 DOI: 10.24028/gj.v44i4.264841
M. Kozlenko, Y. Kozlenko
The work is devoted to the problem of determining the position of the border of the East European Platform (EEP) and the Scythian Plate (SP), which is of great economic importance in dividing the north-western shelf of the Black Sea into more and less promising areas for hydrocarbons. An analysis of the allocation of the juncture of EEP and SP using 23 literature sources published from 1985 to 2020 was performed. The essential differences in drawing the relevant line by different authors are shown. A method for determining the position of the southern boundary of the EEP within the north-western shelf of the Black Sea is proposed, based on the integrated use of gravimetry data — characteristic features of the gravity field (Δgf.a.) and the results of systematic two-dimensional density modeling. The outcome of modelling allowed determining the position and nature of the EEP and SP junction in the section of the earth’s crust, which turned out to be a transcrustal fracture of the southern falling with angles of inclination from 83.5° to 85.5° in different parts of the shelf. According to calculations of the exit points of the faults on the basement surface superimposed on the scheme Δgf.a made it possible to identify the spatial position of the junction of EEP and SP and its extension outside the modeling area for the entire study area. It is established that this line has a zigzag character, changing direction at the intersection with submeridional faults. It is shown that the formation of the southern boundary of EPS was controlled, except for the submeridional component characteristic of EPS, by three other systems — latitude, directions NE-SW and NW-SE, which are observed for tectonic elements of SP in Pridobruzha and Crimea. The correctness of the determination of the boundary position by gravimetric data is confirmed by the results of seismic stratigraphy and thermometry previously obtained by other researchers.
这项工作致力于确定东欧地台(EEP)和斯基泰亚板块(SP)边界的位置,这对于将黑海西北陆架划分为越来越不看好碳氢化合物的区域具有重要的经济意义。使用1985年至2020年发表的23篇文献对EEP和SP交界处的分配进行了分析。显示了不同作者在绘制相关线条时的本质差异。在综合利用重力测量数据——重力场特征(Δgf.A)和系统二维密度建模结果的基础上,提出了一种确定黑海西北陆架EEP南部边界位置的方法。建模的结果使我们能够确定地壳剖面中EEP和SP交界处的位置和性质,这是南部瀑布的跨地壳断裂,在陆架的不同部分倾斜角度为83.5°至85.5°。根据叠加在方案Δgf.a上的基底表面断层出口点的计算,可以识别整个研究区域的EEP和SP交界处及其在建模区域外的延伸的空间位置。研究表明,该线具有之字形特征,在与水下断层相交处改变方向。结果表明,除了EPS的潜水分量特征外,EPS南部边界的形成受Pridobruzha和克里米亚SP构造单元观测到的其他三个系统——纬度、NE-SW和NW-SE的控制。其他研究人员先前获得的地震地层学和温度测量结果证实了重力数据确定边界位置的正确性。
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引用次数: 1
About the so-called «Bug series» of the Middle Bug region (Ukrainian shield). Article 1. The evolution of views and the composition of the «Bug series» 关于所谓的“Bug系列”的中Bug地区(乌克兰盾)。第一条。视图的演变和“Bug系列”的组成
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-09-25 DOI: 10.24028/gj.v44i4.264846
V. Kyrylyuk
The name «Bug Series» was introduced into the Precambrian stratigraphic scheme of the Ukrainian Shield more than half a century ago. During this period, ideas about the composition and age of the series changed several times but, until recently, the opinion of various studies about its stratigenic nature remained unchanged. In recent years, many publications have appeared: they express other views on the origin of the «Bug series». Initially, they concerned only individual petrographic groups, such as carbonate and magnetite-bearing rocks, which were attributed to endogenous (magmatic) origin. Later, an opinion about the nonstratigenic origin of the entire «Bug Series» appeared, and some authors proposed to give up on the division of the Early Precambrian granulite complexes into suites. These ideas are only based on the study materials of local objects obtained by drilling and geophysical methods. The author’s conclusions do not take into account the results of regional geological and stratigraphic studies. Simultaneously, with new ideas about the genesis of the «Bug series», an attempt is being made to link its origin with faults and to revise its age. In order to discuss the problem of the «Bug series», a series of publications has been prepared, in which the main generalized data of many years of regional geological and thematic studies on the composition, structure, stratigraphic and structural position of the units belonging to the «Bug series» are presented. The cycle consists of three separate articles. This is the first publication of the cycle, which considers the composition of formations and rock associations that are included in the Bug series in the current stratigraphic scheme of the Precambrian of the Ukrainian Shield. The data presented in this article and its continuations indicate that all these units are most likely of a stratigenic nature. Presumably endogenous formations do not play a significant role in them. According to the author, the name «Bug series» changed its content so often and radically, both in terms of material (rock) and stratigraphic (formation) composition and age, and now also ideas about its genesis, that it has completely lost its stratigraphic certainty and validity. In the modern stratigraphic scheme of the Precambrian of the Ukrainian Shield, the composition and age of the «Bug Series» are also presented in a distorted form. Therefore, in accordance with the provisions of the National Stratigraphic Code of Ukraine and international stratigraphic norms, the name «Bug series» should be abolished, and relevant publications should be discontinued until the adoption of a new stratigraphic scheme for the Precambrian of the Ukrainian Shield. In this new scheme, the stratigraphic division of the granulite complex of the Bug region should be completely revised.
半个多世纪以前,“虫系”这个名称被引入到乌克兰地盾的前寒武纪地层方案中。在此期间,关于该系列的组成和年龄的观点发生了几次变化,但直到最近,各种研究对其地层性质的看法仍未改变。近年来,出现了许多出版物:他们对“Bug系列”的起源表达了其他观点。最初,他们只关注单独的岩石组,如碳酸盐和含磁铁矿的岩石,这些岩石被认为是内生的(岩浆)成因。后来出现了关于整个“Bug系列”的非地层成因的观点,一些作者提出放弃将早前寒武纪麻粒岩杂岩体划分为套。这些想法只是基于钻探和地球物理方法获得的局部物体的研究材料。作者的结论没有考虑到区域地质和地层学研究的结果。同时,随着关于“Bug系列”起源的新想法,人们正在尝试将其起源与故障联系起来,并修改其年龄。为了讨论“布格系列”的问题,编写了一系列出版物,其中介绍了多年来关于“布格系列”单元的组成、构造、地层和构造位置的区域地质和专题研究的主要综合数据。这个周期由三个单独的文章组成。这是该旋回的第一次出版,它考虑了包括在乌克兰盾的前寒武纪地层方案中的Bug系列中的地层组成和岩石组合。本文及其后续文章所提供的资料表明,所有这些单元极有可能具有地层性质。据推测,内源性的形成在其中并不起重要作用。根据作者的说法,“Bug系列”这一名称在材料(岩石)和地层(地层)组成和年龄方面的内容变化如此频繁和彻底,现在关于其成因的想法也如此,以至于它完全失去了地层的确定性和有效性。在乌克兰地盾前寒武纪的现代地层方案中,“Bug系列”的组成和年龄也以扭曲的形式呈现。因此,根据乌克兰国家地层学法典和国际地层学规范的规定,应废除“Bug系列”的名称,并停止相关出版物,直到采用新的乌克兰地盾前寒武纪地层方案为止。在这种新方案下,对布格地区麻粒岩杂岩的地层划分应进行全面修正。
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引用次数: 1
Palaeomagnetic suitability of a new section with a potential lower boundary for the Quaternary on the left bank of the lower River Danube 多瑙河下游左岸第四纪潜在下边界新剖面的古地磁适宜性
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-09-25 DOI: 10.24028/gj.v44i4.264840
D. Hlavatskyi, Y. Veklych, V. Bakhmutov, V. Shpyra, T. Skarboviychuk, V. Yakukhno, I. Poliachenko
A first palaeomagnetic study has been carried out on a new section with a potential lower boundary interval for the Quaternary, Dolynske 3. Recently, the Matuyama-Brunhes boundary (at 780 ka) was detected in the adjacent section of Dolynske 2. The current study focuses on the hydromorphic palaeosols, loesses and pedosediments of the Bogdanivka to Kryzhanivka units. Taking into account previous palaeomagnetic data from other sections of the loess/soil formation of Ukraine, the Gauss-Matuyama boundary (2.58 Ma) could be expected to be at the top of the Bogdanivka soil unit. However, rock magnetic and magnetostratigraphic results from the Dolynske 3 section indicate an extremely low concentration of the ferrimagnetic minerals and the absence of a characteristic component of magnetisation due to the influence of hydromorphism. Only two samples from the Bogdanivka and Berezan units show a clearly defined reversed polarity; the rest of the samples were uninformative and were rejected from the interpretation. Given the unsuitability of hydromorphic palaeosols and loesses for magnetostratigraphic studies, the determination of the Gauss-Matuyama boundary requires additional, including methodological, research on other sections of Ukraine. The stratigraphic completeness of the composite Dolynske section, its geomorphological location within the Pliocene Danube terraces and convenient geographical setting allow offering it for study as a reference section for the loess/soil formation in Europe. In addition, the Dolynske 3 section potentially may be regarded as a complete continental analogue of the Calabrian and Gelasian with both palaeomagnetic boundaries. Thus, the Dolynske section deserves research on many aspects of the Quaternary, including correlations of loess-palaeosol, alluvial and marine facies, the influence of hydromorphism on palaeomagnetic properties of rocks, «structures» of climatic rhythms in the Calabrian and Gelasian, as part of a separate international project.
第一次古地磁研究是在一个新的剖面上进行的,该剖面具有第四纪可能的下边界区间,即Dolynske 3。最近,在Dolynske 2相邻剖面发现了Matuyama-Brunhes边界(780 ka)。目前的研究重点是博格达尼夫卡至克雷赞尼夫卡单元的水成古土壤、黄土和土壤沉积物。考虑到以前来自乌克兰其他黄土/土壤地层剖面的古地磁数据,高斯-松山边界(2.58 Ma)可能位于博格丹尼夫卡土壤单元的顶部。然而,来自Dolynske 3剖面的岩石磁性和磁地层结果表明,铁磁性矿物浓度极低,由于水形作用的影响,缺乏磁化的特征成分。只有两个来自博格达尼夫卡和别列赞单元的样品显示出明确的反向极性;其余的样本没有提供信息,因此被排除在解释之外。鉴于水文古土壤和黄土不适合进行磁地层学研究,确定高斯-松山界线需要对乌克兰其他地区进行额外的研究,包括方法学研究。复合剖面的地层完整性、多瑙河阶地内的地貌位置和便利的地理环境,使其可以作为欧洲黄土/土壤形成的参考剖面进行研究。此外,Dolynske 3剖面可能被认为是具有古地磁边界的卡拉布里亚和格拉西亚的完整大陆模拟物。因此,Dolynske剖面值得在第四纪的许多方面进行研究,包括黄土-古土壤,冲积和海洋相的相关性,水形态对岩石古地磁特性的影响,卡拉布里亚和格拉西亚气候节奏的“结构”,作为一个单独的国际项目的一部分。
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引用次数: 0
Geological Theory versus Plate Tectonics. A Comment to the paper by V.V. Gordienko «About Geological Theory» 地质理论与板块构造论。对V.V. Gordienko的论文《关于地质理论》的评论
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261977
Y. Khazan
Geological Theory versus Plate Tectonics. A Comment to the paperby V.V. Gordienko «About Geological Theory»
地质理论与板块构造。对V.V.Gordienko的论文《关于地质理论》的评论
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引用次数: 0
Hydrocarbon system of the South Caspian Depression 南里海盆凹陷的油气系统
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261971
N. Yusubov, T. N. Shikhmammadova
Actuality. The hydrocarbon generation sources in the South Caspian Basin (SCB) are located at the depth of nine or more kilometers, where the organic-rich Maikop sediments occur. The main oil-and-gas fields here are found in reservoirs of the Productive Strata (Lower Pliocene), bedding at a depth of one or more kilometers. At the same time, the significant role at the process of hydrocarbons migration from the source of their generation to the reservoirs belongs to the tectonic faults (fractures). However, the results of the research according to the latest seismic data carried out in recent years are indicated the unavailability of the tectonic faults in the SCB, which connected the hydrocarbon generation sources with the reservoirs in the Productive Strata. Target. The determination of the geological elements at the studied area that contributed the role of the hydrocarbon migration channels and connected generation source with reservoirs in the Productive Strata. Objects. The hydrocarbon generation source, hydrocarbon migration channel, tectonic faults and fractures, Productive Strata reservoirs, eruptive channels of the mud volcanoes. Approach. The collaboration interpretation results of the deep drilling and the seismic data by using the common depth point method. Results. Based on the structural interpretation results of the seismic data with high-resolution parameters, are indicated the lack of the tectonic faults which connecting the hydrocarbon generation source with reservoirs of the Productive Strata in the SCB. In addition, the hydrocarbons that generated in the Maikop sediments are transported to the Productive Strata reservoirs by the eruptive channels of mud volcanoes. The opinion that the process of hydrocarbon generation in the Maikop clay deposits continues to the present time and the mud volcanoes eruptive channels provide feeding of the deposits with the continuous supply of oil-and-gas was expressed. Such kind of mechanism allows to classify the deposits, that more than a century under developed in the South Caspian Depression and which located at the zone of mud volcanomaturity, to the category of replenished.
现状。南里海盆地(SCB)的生烃源位于9公里或以上的深度,其中富含有机物的Maikop沉积物发生。这里的主要油气田位于生产层(下上新世)的储层中,层理深度为1公里或以上。同时,构造断裂(裂缝)在油气从生烃源向储层运移过程中起着重要作用。然而,根据近年来最新的地震资料进行的研究结果表明,连接生烃源层与生产层储层的构造断裂在华南地区是不存在的。目标。研究区对油气运移通道和生烃源与产层储层连通作用的地质要素的确定。对象。生烃源、油气运移通道、构造断裂裂缝、生产层储层、泥火山喷发通道。的方法。用共深度点法对深钻与地震资料的协同解释结果。结果。根据高分辨率参数地震资料的构造解释结果,指出该区缺乏连接生烃源与生产层储层的构造断裂。此外,Maikop沉积物中生成的碳氢化合物通过泥火山喷发通道被输送到生产层储层。认为麦科普黏土矿床的生烃过程延续至今,泥火山喷发通道为沉积提供了持续的油气供给。这种机制可以将南里海坳陷一个多世纪未开发的位于泥火山成熟带的矿床划分为补充类型。
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引用次数: 0
Prediction of petrophysical characteristics of deposits in Kurovdagh field by use of attribute analysis of 3D data 利用三维数据属性分析预测库罗达格油田矿床岩石物理特征
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261976
T. Akhmedov, M.A. Aghayeva
The paper is devoted to predicting petrophysical parameters of productive series of Kurovdagh field by use of attribute analysis of seismic data to define the direction of reconnaissance works in this field. The paper considers geographical position of the study area, its cover by geological and geophysical studies and underlines, in particular, the importance of 3D seismic data acquisition for more detailed study of Kurovdagh structure. Lithological and stratigraphic characteristics of the section is also given in the paper with detailed description of Productive Series deposits. In addition, tectonics of the area is considered in more detail. It is noted that the area is attributed to the Low Kur basin — the compound of the large tectonic unit. The tectonic zone of the south-eastern Shirvan is embracing four anticlinal zones: Pirsaat-Khamamdagh; Kharami—Mishovdag—Kalmas—Khydirly—Aghaevir-Byandovan; Kursangya; Padar—Kurovdagh—Karabaghly—Babazanan—Duzdagh-Neftchala. The latter anticlinal zone is characterized by a significant length. In the north-western part between the folds of Padar and Karabaghly the brachyanticline of Kurovdagh is located. In the north it has the border with M. Kharami uplift, in the north-east with Mishovdagh fold, it borders with Kursyanga anticline in the south-east and in the south-west with wide Salyan trough. In the Near-Kur depression the existence of two tectonic stripes has been established. One of them embraces the south-eastern Shirvan, the other covers the eastern Mughan and the western portion of Salyan steppe. The detailed description of fold setting is given on the basis of 3D seismic survey data. It has been indicated that the results of 3D data interpretation made it possible to study in more detail and make changes in the scheme of faults location accepted earlier. The other problem considered in the paper is the oil-and-gas presence in Kurovdagh field, which is related to the Absheron stage of Pleistocene, Akchagyl stage and Productive series (horizons of PS01—PS20) of Neogene, with lithology represented by sandy-clay rocks with various degrees of calcareousness. The structure of each of indicated horizons is rather complicated and variable in lateral. The most complicated of them is the Middle Absheron sub-stage, with identified 11 oil-bearing layers. Study results are given in the end of the paper. For prediction purposes within the study area we have prepared normalized curves of relative parameter of SP-ASP, gamma-log — dGR and resistivity by use of well logging data. The analysis of dependence of seismic attributes on petrophysical parameters within target interval, identified the low information bearing ability of SP method and gamma-log across the study area and established a good correlation between resistivity curve and instantaneous amplitudes, frequencies and dip angles. The clay cubes have been designed. To outline productive layers, we have applied multidimensional filters with cut offs for re
本文利用地震资料的属性分析方法,预测了Kurovdagh油田生产系列的岩石物理参数,确定了该领域勘探工作的方向。本文考虑了研究区域的地理位置、地质和地球物理研究的覆盖范围,并特别强调了三维地震数据采集对于更详细地研究Kurovdagh构造的重要性。文中还给出了该剖面的岩性和地层特征,并对生产系列矿床进行了详细描述。此外,更详细地考虑了该地区的构造。值得注意的是,该地区属于低库尔盆地——大型构造单元的复合体。Shirvan东南部的构造带包括四个背斜带:Pirsaat-Khamamdagh;Kharami——Mishovdag——Kalmas——Khydirly——Aghaevir Byandovan;Kursangya;帕达尔——库洛夫达赫——卡拉巴格利——巴巴扎南——杜兹达赫·涅夫查拉。后一个背斜带具有明显的长度特征。在帕达尔褶皱和卡拉巴格利褶皱之间的西北部,Kurovdagh的brachyanticline位于。北部与M.Kharami隆起接壤,东北部与Mishovdagh褶皱交界,东南部与Kursyanga背斜交界,西南部与宽阔的Salyan槽交界。在近库尔凹陷,已经确定存在两个构造条纹。其中一个覆盖东南部的Shirvan,另一个覆盖东部的Mughan和Salyan草原的西部。在三维地震勘探资料的基础上,对褶皱的设置进行了详细的描述。研究表明,三维数据解释的结果为更详细地研究和改变早期接受的断层定位方案提供了可能。本文考虑的另一个问题是Kurovdagh油田的油气存在,该油田与更新世Absheron阶段、Akchagyl阶段和新第三纪生产系列(PS01-PS20层位)有关,岩性以不同程度钙质的砂质粘土岩为代表。每个指示层位的结构都相当复杂,并且在横向上变化很大。其中最复杂的是中Absheron亚阶段,已确定11个含油层。论文最后给出了研究结果。为了在研究区域内进行预测,我们利用测井数据编制了SP-ASP、伽玛测井-dGR和电阻率的相对参数归一化曲线。分析了目标层段内地震属性对岩石物理参数的依赖性,确定了SP法和伽马测井在整个研究区的低信息承载能力,并在电阻率曲线与瞬时振幅、频率和倾角之间建立了良好的相关性。粘土方块已经设计好了。为了概述生产层,我们对储层应用了带截止值的多维滤波器,因此我们获得了假设生产层分布的立方体。值得强调的是,所进行的研究得出的结论是,由于Kurovdagh结构某些部分观测到的波形的复杂性和干扰性,不可能将地震波场的属性可靠地转换为岩石物理参数。
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引用次数: 0
Kriging of Ukraine’s deep heat flow map 克里格绘制的乌克兰深部热流图
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261968
V. Gordienko, I. Gordienko, O. V. Zavgorodnaya
The article discusses the method of processing the material used to compile a deep heat flow (HF) map on the territory of Ukraine. We are talking specifically about the deep (corrected) HF, since its error (determined by the differences in values at close points) is noticeably less than the observed one and only its values can be used to construct (as a rule, to control) thermal models of the Earth's crust and upper mantle. Despite the unique study of Ukraine on this parameter, which has been going on for almost 60 years, there are still significant fragments of the territory where the HF has not been determined. This is due to the lack of boreholes in such areas suitable for temperature measurements in the required depth interval with the required accuracy. Of course, any method of processing experimental material in areas adjacent to such «white spots» cannot completely replace a full-fledged study of HF within their boundaries. Nevertheless, the available geostatistical methods allow, by processing the existing grid of results, to ensure the construction of a map of the entire study area. In our case, we used the kriging technique. Kriging is a form of generalized linear regression to formulate an optimal spatial estimate in terms of minimum mean square error. The method works best within the shell defined by peripheral data. Within areas with a stable «wavelength» of HF anomalies, it is possible to fill in the gaps in the map without any problems. Naturally, with a noticeable smoothing of the field variations. Most of the processed map fragments belonged to this type. A more complicated situation was encountered at the southwestern contacts of the Kirovograd and Donbas anomalies. It is likely that part of the field structure (local intense anomalies) was not reproduced. Nevertheless, in general, the control carried out showed that the HF error in the assessment points, as a rule, does not exceed the experimental errors. The work done gives completeness to the results of research of the deep heat flow on the territory of Ukraine. It should also be noted that the identified distribution of HF within the former «white spots» reveals reserves of geothermal energy twice as much as the total reserves of combustible minerals in Ukraine.
本文讨论了在乌克兰境内编制深热流(HF)地图所用材料的处理方法。我们具体讨论的是深层(校正)HF,因为它的误差(由近点处的值差异决定)明显小于观测值,而且只有它的值可以用来构建(通常是控制)地壳和上地幔的热模型。尽管乌克兰对这一参数进行了近60年的独特研究,但仍有大量领土碎片尚未确定HF。这是由于在这些地区缺乏适合在所需深度间隔内进行温度测量并具有所需精度的钻孔。当然,在这些“白点”附近处理实验材料的任何方法都不能完全取代在其边界内对HF的全面研究。然而,现有的地质统计方法可以通过处理现有的结果网格,确保绘制整个研究地区的地图。在我们的例子中,我们使用了克里格技术。Kriging是广义线性回归的一种形式,以最小均方误差来制定最优的空间估计。该方法在由外设数据定义的shell中效果最好。在高频异常具有稳定“波长”的区域内,可以在没有任何问题的情况下填补地图中的空白。自然地,有一个明显的平滑场变化。大多数处理过的地图片段都属于这种类型。在基罗沃格勒和顿巴斯异常点的西南接壤处遇到了更为复杂的情况。很可能是部分磁场结构(局部强异常)没有重现。然而,总的来说,进行的控制表明,评估点的HF误差一般不会超过实验误差。所做的工作使乌克兰境内深热流的研究结果更加完整。还应指出,在前“白点”内确定的HF分布表明,地热能储量是乌克兰可燃矿物总储量的两倍。
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引用次数: 0
Moisture as an indicator of the manifestation of hazardous properties of coal seams 水分作为煤层危险性质表现的指标
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261969
Y. Rudniev, A.M. Galchenko, V. Tarasov, M. Antoshchenko
Purpose: establish the change in the ratios between individual types of moisture and indicators of metamorphic transformations of coal seams after recalculating their values for the working state of the fuel. This will make it possible to predict the manifestation of hazardous properties mining. Methodology: provides for the involvement of the initial experimental data that have been accumulated in normative and reference documents. Results: When conducting research, the experience of using moisture as an indicator for solving three problems at once was taken into account: the criterion for evaluating the metamorphic transformations of coal seams; determination of fuel quality; forecast of the manifestation of hazardous properties of coal seams during mining operations. Different types of moisture at different stages of metamorphic transformations of coal seams are not equivalent in terms of the strength of the bond between water and coal. In some regulatory documents, in some cases, indicators of different types of moisture are used to characterize the moisture content of coal seams, which introduces additional errors in the reliability of the prediction of hazardous properties. In the early and middle stages of metamorphic transformations of coal seams, moisture is not formed for the most part, but only free moisture is mechanically removed from the system. Hard coals and anthracites have different molecular structure, which determines different ratios between the content of free and bound moisture. The content of total moisture is a metamorphic indicator only for organic (combustible) mass, and it is not a reliable criterion for assessing the transformation of coal seams in general. Mandatory pre-moistening of coal in the array in all cases during mining operations is not sufficiently substantiated for different stages of metamorphic transformations of coal seams due to the different ratio between the forms of moisture and the irreversibility of metamorphism processes. Scientific novelty: for the first time, a quantitative assessment of the content of hydrated moisture in mineral impurities and moisture in the organic mass from the degree of metamorphic transformations of coal seams was made. Practical value: the research results make it possible to develop proposals for improving the regulatory framework in terms of predicting the manifestation of hazardous properties of coal seams during mining operations, depending on the presence of different forms of moisture in coals.
目的:通过重新计算煤层各类型水分与变质转化指标在燃料工作状态下的比值,建立各类型水分与煤层变质转化指标比值的变化。这将使预测采矿危险性质的表现成为可能。方法:规定了在规范和参考文件中积累的初始实验数据的参与。结果:在进行研究时,考虑到以含水率为指标一次性解决三个问题的经验:煤层变质转化的评价标准;燃料质量的测定;煤矿开采过程中煤层危险特性表现的预测。不同类型的水分在煤层变质作用的不同阶段,其水煤结合强度是不相等的。在一些规范性文件中,在某些情况下,使用不同类型的水分指标来表征煤层的水分含量,这在预测危险特性的可靠性方面引入了额外的误差。在煤层变质转化的早期和中期,大部分水分不形成,只有游离水分被机械地排出系统。硬煤和无烟煤的分子结构不同,这就决定了其自由水分和束缚水分的比例不同。总水分含量仅是有机质(可燃)变质的指标,一般不能作为评价煤层变质的可靠指标。由于水分形式和变质过程的不可逆性之间的比例不同,在采矿作业中,在所有情况下,对煤层变质转化的不同阶段强制进行煤的预湿并不充分。科学新颖性:首次从煤层变质程度定量评价矿物杂质中水合水分含量和有机质中水分含量。实用价值:研究结果使我们能够根据煤中不同形式的水分的存在,就预测开采作业期间煤层危险特性的表现提出改进管理框架的建议。
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引用次数: 0
Location of singular points in orthorhombic media 正交介质中奇异点的定位
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261965
Y. Roganov, A. Stovas, V. Roganov
The dependence of the location of singular points of orthorhombic (ORT) media on the stiffness coefficients , and phase velocity  at the singularity point is studied under the assumption that  are larger than  and . In this case, singular points appear only at the intersection of slowness surfaces of S1- and S2-waves. To simplify the presentation of the results, the values , are fixed and  changed within the limits at which the stiffness matrix remains positive definite. We define the parameters, , , , which result in 0, 1, or 2 singular points in the symmetry planes of the ORT medium. The types of these singular points and their location on the unit circle are described. It is shown that, by selecting parameters , any singular point in the symmetry plane 13 can be combined with the limiting position of the singularity point in-between the symmetry planes, or this point can be included in the singular curve of the degenerate ORT medium. We derive equations for the semi-axes of an ellipse of conical refraction, which is the image of a singular point from plane 13 in the group domain. Conditions for degeneration of the ellipse of conical refraction into a segment or a point are defined. It is shown that there exists only one ORT medium with a fixed phase velocity  of S1- and S2-waves in a given singular direction n. If we present the ORT media as projections of these vectors n onto the plane 12 and mark the value of the Poincaré index of the S1- or S2-wave at the point n, we get 2 regions with indices 1/2 and –1/2 separated by projection of the singular curve in the form of an ellipse or hyperbola. We compute equations for  of a degenerate ORT medium in terms of the values, , and velocity  of S1-, S2-waves on a singular curve. The singular curve is defined by the intersection of a unit sphere with an elliptic cone. It is proved that a degenerate ORT medium for  or  is, respectively, a transversally isotropic medium with a vertical or horizontal axis of symmetry. The results are illustrated in several examples.
在大于和的假设下,研究了正交介质奇异点的位置对奇异点处的刚度系数和相速度的依赖性。在这种情况下,奇异点仅出现在S1波和S2波的慢度表面的相交处。为了简化结果的表示,在刚度矩阵保持正定的极限范围内,值是固定的和变化的。我们定义了参数,在ORT介质的对称平面中产生0、1或2个奇异点。描述了这些奇异点的类型及其在单位圆上的位置。结果表明,通过选择参数,对称平面13中的任何奇异点都可以与对称平面之间奇异点的极限位置相结合,或者该点可以包含在退化ORT介质的奇异曲线中。我们导出了圆锥折射椭圆的半轴方程,该椭圆是群域中平面13的奇异点的图像。定义了圆锥折射椭圆退化为线段或点的条件。结果表明,在给定的奇异方向n上,只有一种具有S1波和S2波的固定相速度的ORT介质。如果我们将ORT介质表示为这些矢量n在平面12上的投影,通过椭圆或双曲线形式的奇异曲线的投影,我们得到了索引为1/2和-1/2的两个区域。我们根据奇异曲线上S1波、S2波的值和速度计算退化ORT介质的方程。奇异曲线是由单位球面与椭圆锥的交点定义的。证明了或的退化ORT介质分别是具有垂直或水平对称轴的横向各向同性介质。通过几个例子说明了结果。
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引用次数: 2
Geophysical threats of wartime to high-risk objects of Ukraine 战时对乌克兰高风险目标的地球物理威胁
IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2022-08-24 DOI: 10.24028/gj.v44i3.261970
P. Anakhov
Environment is changed by man consciously and mostly unconsciously. A characteristic feature of modern times is the unprecedented number of potentially dangerous enterprises that pose a real threat of emergencies of natural and man-made origin. Accidents at 203 high-risk Ukrainian facilities can lead to emergencies at the regional and state levels, spreading to other countries. Of all human engineering activities, hydraulic engineering has the greatest impact on the natural environment; significant effects of artificial regulation of precipitation, mining. These actions may also have military uses that involve intentional harm. The main task of military hydraulic engineering is the creation of artificial water barriers to advance the enemy. The use of artificial rainfall for the same purpose helps to soften road surfaces and provokes landslides along them, supports the erosion of river fords and increased soil water saturation. The earthquakes caused by the bombings are causing extensive damage to infrastructure. At the end of February 2014, Russia launched hostilities in Ukraine, which began with the annexation of Crimea, continued with a protracted armed conflict in the Donetsk and Luhansk regions, led to the entry of troops on February 24, 2022. Military action is accompanied by conscious and unconscious manifestations of aggression in potentially dangerous enterprises. To protect against natural disasters of anthropogenic origin, in 1976 the Environmental Modification Convention was adopted. To date, only 94 of the 193 UN countries have ratified or agreed to the Convention. The list of potential 99 violators is supplemented by the founding member states of the United Nations and initiators of the development of the Convention within the USSR, the Russian Federation, which is waging hostilities on the territory of Ukraine, and Belarus.
环境是人类有意识地、多半是无意识地改变的。现代的一个特点是潜在危险的企业数量空前,它们构成了自然和人为紧急情况的真正威胁。乌克兰203个高风险设施的事故可能导致地区和州一级的紧急情况,并蔓延到其他国家。在所有人类工程活动中,水利工程对自然环境的影响最大;人工调节降水、采矿效果显著。这些行为也可能具有涉及故意伤害的军事用途。军用水利工程的主要任务是制造人工水障以推进敌人。为了同样的目的而使用人工降雨有助于软化路面,引发沿途的山体滑坡,支持河流浅滩的侵蚀,增加土壤水分饱和度。爆炸引起的地震对基础设施造成了广泛的破坏。2014年2月底,俄罗斯在乌克兰发动了敌对行动,先是吞并克里米亚,接着在顿涅茨克和卢甘斯克地区爆发了旷日持久的武装冲突,直到2022年2月24日俄罗斯军队进入乌克兰。军事行动伴随着在潜在危险企业中有意识和无意识的侵略表现。为了防止人为的自然灾害,1976年通过了《改变环境公约》。迄今为止,193个联合国成员国中只有94个国家批准或同意了该公约。在99个潜在违反者名单之外,还有联合国的创始成员国和在苏联、在乌克兰领土上发动敌对行动的俄罗斯联邦以及白俄罗斯境内推动《公约》发展的国家。
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引用次数: 0
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Geofizicheskiy Zhurnal-Geophysical Journal
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