Russian Journal of Pacific Geology最新文献_第2页

Tectonic Structure and History of Geological Development of the Zeya-Bureya Sedimentary Basin according to the Results of Integrated Interpretation of Drilling and Seismic Exploration Materials 根据钻探和地震勘探资料的综合解释结果确定的泽雅-布列亚沉积盆地的构造结构和地质发展史

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s1819714024700088

A. E. Kontorovich, S. V. Ershov, N. I. Shestakova, V. N. Bardachevskiy, E. V. Borisov, A. Y. Nekhaev

{"title":"Tectonic Structure and History of Geological Development of the Zeya-Bureya Sedimentary Basin according to the Results of Integrated Interpretation of Drilling and Seismic Exploration Materials","authors":"A. E. Kontorovich, S. V. Ershov, N. I. Shestakova, V. N. Bardachevskiy, E. V. Borisov, A. Y. Nekhaev","doi":"10.1134/s1819714024700088","DOIUrl":"https://doi.org/10.1134/s1819714024700088","url":null,"abstract":"The latest geological and geophysical information on the Zeya-Bureya sedimentary basin (Russia, Far East) is summarized. Based on drilling data from corehole and deep wells and 2D and 3D CDPM seismic data, taking into account the integrated interpretation of gravity and magnetic survey data and geological survey materials, a map was compiled for the surface of the pre-Mesozoic basement of the sedimentary basin, as well as structural maps for the top of the Cretaceous formations. The maps reflect a series of rift grabens and uplifts identified by the authors on seismic time sections during their reinterpretation. The method of compiling maps is given. A geological map of sediments overlying the pre-Mesozoic basement of the Zeya-Bureya sedimentary basin and a tectonic map of the sedimentary cover were compiled. During tectonic zoning of the sedimentary cover, the classification of tectonic elements was adopted that is widely used in the tectonic zoning of oil and gas regions, proposed by V.D. Nalivkin and updated at the Trofimuk Institute of Oil and Gas Geology and Geophysics, Siberian Branch, Russian Academy of Sciences (INGG SB RAS). As a result of tectonic zoning in the basin, the Inner Region and the Outer Belt were identified, and the tectonic elements complicating them were characterized. A characteristic feature of the Outer Belt is the presence of large intermediate structures: monoclines and mega- and mesomonoclines. Conversely, the Inner region of the basin is characterized by the presence of a large negative structure, complicated by smaller positive and negative elements. The main stages of the formation and development of the sedimentary cover of the Zeya-Bureya sedimentary basin are identified and described: rifting, early syneclise, late syneclise, and neotectonic.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"29 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Holocene Geomagnetic Excursions in Peat Deposits 泥炭沉积中的全新世地磁偏移

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s1819714024700143

A. Yu. Peskov, A. N. Didenko, A. S. Karetnikov, M. A. Klimin, M. V. Arkhipov, N. V. Kozhemyako, A. I. Tikhomirova

引用次数: 0

Deep Structure of the Lithosphere along the Spassk-Dalniy–Zerkalnaya Bay Geotraverse Based on Multidiscipline Exploration Data 基于多学科勘探数据的斯帕斯克-达尔尼-泽卡尔纳亚湾地质横断面岩石圈深部结构

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s181971402470009x

Yu. F. Manilov, E. G. Ivolga, V. B. Kaplun

引用次数: 0

Tectonophysical Features of the Load–Unload Response Ratio (LURR) Caused by the Tokachi-Oki Earthquake (September 25, 2003, Mw = 8.3) 由十胜隐岐地震（2003 年 9 月 25 日，Mw = 8.3）引起的荷载-非荷载反应比 (LURR) 的构造物理特征

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s1819714024700118

A. S. Zakupin, A. Yu. Polets

{"title":"Tectonophysical Features of the Load–Unload Response Ratio (LURR) Caused by the Tokachi-Oki Earthquake (September 25, 2003, Mw = 8.3)","authors":"A. S. Zakupin, A. Yu. Polets","doi":"10.1134/s1819714024700118","DOIUrl":"https://doi.org/10.1134/s1819714024700118","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The paper presents the results of retrospective and tectonophysical analysis of the Tokachi-Oki earthquake source area on the September 25, 2003 (Mw = 8.3). Particular attention is paid to the Hidaka tectonic belt, the structures of which were affected by the Tokachi-Oki earthquake. The load–unload response ratio (LURR) method was applied at sufficient spatial (a square with a side of about 400 km) and temporal (continuous 20-year period) intervals to consider the results reliable. The forerunners of the Tokachi-Oki earthquake on the September 25, 2003, were revealed (on average, two years before the seismic event), which strictly determined the earthquake location. The data obtained with The method of cataclastic analysis (MCA), together with LURR data, made it possible to establish the stages of instability development in the Hidaka collision zone. The Hidaka tectonic belt became outlined by destruction zones (mainly horizontal compression) from 1997 to 2003 (up to the Tokachi-Oki earthquake). LURR anomalies were detected along the belt a couple of years before the earthquake. The prediction of the Tokachi-Oki earthquake by the LURR method is one of the most reliable in our practice.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"32 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Alumina Daughter Phases in Olivine-Hosted Melt Inclusions from Kudryavy and Menshiy Brat Volcanoesv (Medvezhia Caldera, Iturup Island) 库德里亚维火山和门希布拉特火山（伊图鲁普岛梅德韦日亚火山口）橄榄石包裹体中的高铝子相v

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s1819714024700131

I. R. Nizametdinov, S. Z. Smirnov, A. Ya. Shevko, D. V. Kuzmin, A. A. Kotov, V. S. Sekisova, T. Yu. Timina

{"title":"High-Alumina Daughter Phases in Olivine-Hosted Melt Inclusions from Kudryavy and Menshiy Brat Volcanoesv (Medvezhia Caldera, Iturup Island)","authors":"I. R. Nizametdinov, S. Z. Smirnov, A. Ya. Shevko, D. V. Kuzmin, A. A. Kotov, V. S. Sekisova, T. Yu. Timina","doi":"10.1134/s1819714024700131","DOIUrl":"https://doi.org/10.1134/s1819714024700131","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>For the first time, high-alumina mineral assemblages including rare minerals of the rhönite–kuratite series were found in postcaldera lava flows of the Kudryavy and Menshiy Brat volcanoes (Kuril Islands). These lava flows consist of olivine-bearing basalts and andesite-basalts of the calc-alkaline series. Partially crystallized olivine-hosted melt inclusions in these rocks contain high-alumina daughter phases. Residual glass with up to 25 wt % Al2O3, Al-pyroxenes, and spinel with minerals of the rhönite subgroup were identified. The rhönite–kuratite series minerals are characterized by strong variations in Al, Fe2+, Fe3+, Mg, Si, as well as very low Ti, which makes it possible to call it a low-Ti Fe2+ analogue of rhönite with the formula (Ca,Mg,Na)4(Mg,Fe,Fe, Al,Ti,Mn)12O4[Si8.2Al3.8O36]—(Ca,Na,Mg)4(Fe,Mg,Al,Fe,Ti)12O4[Si6.78Al5.22O36]. It is assumed that high-alumina daughter phases form in olivine-hosted inclusions via water accumulation in trapped melts during crystallization of the host olivine on the walls of melt inclusions. Water-rich melts can inhibit early crystallization of plagioclase, which promotes enrichment of the residual melt in Al2O3.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"50 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural-Density Model of the Earth’s Crust within the Sakhalin Western Shelf and Its Geological Interpretation 萨哈林西部大陆架地壳结构-密度模型及其地质解读

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s1819714024700106

Z. N. Proshkina, M. G. Valitov, I. A. Sigeev

引用次数: 0

Seismic Intensity Estimates for the Baikal–Olekma Section of the Baikal–Amur Railway 贝加尔-阿穆尔铁路贝加尔-奥列克马段地震烈度估算

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s181971402470012x

V. I. Melnikova, N. A. Gileva, Ya. B. Radziminovich, A. I. Filippova

{"title":"Seismic Intensity Estimates for the Baikal–Olekma Section of the Baikal–Amur Railway","authors":"V. I. Melnikova, N. A. Gileva, Ya. B. Radziminovich, A. I. Filippova","doi":"10.1134/s181971402470012x","DOIUrl":"https://doi.org/10.1134/s181971402470012x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>In this study, we calculated the seismic intensity for the Baikal–Olekma section of the Baikal–Amur Railway based on data on seismicity on the northeastern flank of the Baikal Rift Zone in 1985–2021. During the analysis of earthquakes with an epicentral intensity higher than 4 (1484 events), we selected 270 earthquakes with Ms = 2.1–6.6, whose calculated intensity exceeded 4 points directly on the railway track from the total number of the recorded seismic events (more than 150 000 earthquakes with M ≥ 1.0). The highest intensity values (8–9) were obtained for large earthquakes close to the Baikal–Olekma section of the Baikal–Amur Railway (Δ < 10 km, Ms = 6.1–6.2). A recurrence interval of such seismic events along the considered section of the railway is 20–60 years. The data are agree well with the macroseismic data available, which confirms the correctness of the results. At the same time, macroseismic effects from strong (Ms ≥ 6.6) but remote earthquakes (Δ = 360–1000 km) were found to have no significant impact on the Baikal–Olekma section of the Baikal–Amur Railway. The calculated values of intensity and recurrence intervals of earthquakes should be taken into account when designing, constructing, and operating industrial and civil infrastructure within the study area.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"13 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Aquifer Contamination by Heavy Metals Using Finite Element Modeling with Freundlich Parameters in Traditional Metal Recycling Craft Village in Bac Ninh Province, Vietnam 利用含 Freundlich 参数的有限元模型对越南北宁省传统金属回收工艺村含水层重金属污染的研究

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-08-09 DOI: 10.1134/s1819714024700155

Nguyen Bach Thao, Renat Shakirov, Nadezhda Syrbu, Tran Vu Long, Trinh Hoai Thu, Dao Duc Bang, Tran Quang Tuan, Duong Thi Thanh Thuy, Kieu Thi Van Anh, Vu Thu Hien, Natalia Lee

{"title":"Study on Aquifer Contamination by Heavy Metals Using Finite Element Modeling with Freundlich Parameters in Traditional Metal Recycling Craft Village in Bac Ninh Province, Vietnam","authors":"Nguyen Bach Thao, Renat Shakirov, Nadezhda Syrbu, Tran Vu Long, Trinh Hoai Thu, Dao Duc Bang, Tran Quang Tuan, Duong Thi Thanh Thuy, Kieu Thi Van Anh, Vu Thu Hien, Natalia Lee","doi":"10.1134/s1819714024700155","DOIUrl":"https://doi.org/10.1134/s1819714024700155","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The traditional craft villages in Vietnam in general and in Bac Ninh province in particular have been exposing many negative impacts on the environment. The heavy metal-rich wastes from the metal recycling casting craft villages in the field of metal recycling and metal casting are causing severe heavy metal pollution not only to the air, soils, and sediments but also to the groundwater resources. In Da Hoi iron recycling craft village in Chau Khe ward, Tu Son town, Bac Ninh province, Vietnam, the Holocene aquifer is exposed to the Ngu Huyen Khe River’s sediments contaminated with heavy metals Lead, Cadmium, Nickel, and Zinc. Freundlich isotherm parameters of the Holocene aquifer have been selected for finite element modeling of heavy metal transport with high temporal and spatial varying retardation factors to get reliable quantitative heavy metals’ distribution in depth and time. Initial and boundary conditions have been augmented to be established. The retardation factors of the advection and dispersion transport in the Holocene aquifer for heavy metals Pb, Zn, Cd, and Ni are very highly none-linear and very much varying in time and space: 8.7–66.4 for Pb, 2.0–12 for Zn, 1.7–4.8 for Cd and 1.1–5.9 for Ni. The results of the numerical modeling show that heavy metal transport in the Holocene aquifer is very fast and the entire aquifer thickness has equilibrium aquifer formation and aquifer water heavy concentrations after around 2–2.5 years for Cd and Ni, around 4 years for Zn and around 27 years for Pb. The heavy metals’ fluxes from the Holocene aquifer to the Pleistocene aquifer are maximal and more or less constant from the equilibrium time and would cause severe contamination of the Pleistocene aquifer.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"72 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geochemistry, Mineralogy, and Genetic Features of the Belogorskoe Magnetite Deposit (Sikhote-Alin) Belogorskoe 磁铁矿藏（锡霍特-阿林）的地球化学、矿物学和遗传特征

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-06-05 DOI: 10.1134/s1819714024700064

V. T. Kazachenko, E. V. Perevoznikova

{"title":"Geochemistry, Mineralogy, and Genetic Features of the Belogorskoe Magnetite Deposit (Sikhote-Alin)","authors":"V. T. Kazachenko, E. V. Perevoznikova","doi":"10.1134/s1819714024700064","DOIUrl":"https://doi.org/10.1134/s1819714024700064","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>New data favor the view previously substantiated by geological, geochemical and isotopic data that the orebodies of the Belogorskoe deposit are the Triassic erosion products of the laterite weathering crust after gabbroids, which were metamorphosed and partially regenerated in the Late Cretaceous–Paleogene. The source for the formation of the Belogorskoe deposit was shown to be the products of exogenic destruction of rocks, the isotopic and geochemical characteristics of which are close to those of Cambrian gabbroids of the Vladimiro-Aleksandrovsky massif (southern part of the Okrainsko-Sergeevsky terrane). It has been found that the Belogorskoe deposit consists of rocks and ores, the primary (magmatic) REE distribution in which was variably modified as a result of interaction between sediments (protoliths) and seawater (presumably during the Late Jurassic–Early Cretaceous accretion), as well as between their metamorphosed analogues and hydrothermal solutions (in the Late Cretaceous–Paleogene). The influence of gabbroids (as a source of material) on the chemical and mineral composition of the Belogorskoe deposit agrees with the data reported in a paper on the enrichment of orebodies in such elements as Fe and Mn characteristic of ultramafic rocks and the presence of Au–Ag–Pd–Pt, Ni–Co, and Bi mineralization in them. The orebodies of the Belogorskoe deposit contain accessory minerals and mineral varieties that are rare in nature and poorly studied. They include an unusually Th-rich variety of zircon, baddeleyite, gudmundite, a large group of bismuth compounds, including Bi2Te, (Ag,Pb)BiS2, as well as coloradoite, lafossaite, sanbornite, perovskite, and the compound InPO4. There is also a large group of rare and unusual noble metal compounds: copper gold, platinum gold, jonassonite, disordered solid solutions of Cu, Ag and Au (Au-based), Pt–Pd, Pt–Ag intermetallides, and other rare minerals and mineral varieties.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"7 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Central Type Structures of South Sikhote-Alin in Probabilistic Gravity Models: Deep Structure, Rheology, Hierarchy, Fractality, and Metallogeny 概率重力模型中的南锡霍特-阿林中央型结构：深部结构、流变学、层次结构、断裂和金属成因

IF 0.8 4区地球科学

Russian Journal of Pacific Geology Pub Date : 2024-06-05 DOI: 10.1134/s1819714024700027

A. M. Petrishchevsky

{"title":"Central Type Structures of South Sikhote-Alin in Probabilistic Gravity Models: Deep Structure, Rheology, Hierarchy, Fractality, and Metallogeny","authors":"A. M. Petrishchevsky","doi":"10.1134/s1819714024700027","DOIUrl":"https://doi.org/10.1134/s1819714024700027","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The relationships of ore districts, clusters, and fields with hierarchal subordinate central-type structures of three taxonomic levels are established from an analysis of the 3D distributions of contrast density in the crust of South Sikhote-Alin. The possible occurrence depth of fluid-magmatic sources of ore mineralization is determined from the coincidence of ore mineralization halos with the projections of deep density heterogeneities: Sn (2–6 km), Sn–polymetallic (4–12 km), polymetallic (6–20 km), and Au–W (14–24 km). The spatial location of central-type structures and related ore mineralization halos coincides with viscous shear zones, which exhibit sagging of the upper crustal level (Samarka Terrane, Kavalerovo district, and Soboliny ore cluster) and the displacement of contours of density heterogeneities in various deep sections (Dalnegorsk district). The deep boundaries of ancient continental crust and Mesozoic island-arc wedges, which are underthrust beneath accretionary–fold complexes, are determined. The combination of these structures is characterized by evident features of a transform strike-slip fault.","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"25 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0