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Review of the Bulgarian Geological Society最新文献

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Minor and trace elements in pyrite and marcasite from the Sarnak low-sulfidation gold deposit, SE Bulgaria. Part 1 保加利亚东南部萨尔纳克低硫化金矿床黄铁矿和云母石中的微量和痕量元素。第一部分
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.211
Aleksandar Gadzhalov, Irina Marinova, Mihail Tarassov, Liliya Tsvetanova, E. Tacheva
{"title":"Minor and trace elements in pyrite and marcasite from the Sarnak low-sulfidation gold deposit, SE Bulgaria. Part 1","authors":"Aleksandar Gadzhalov, Irina Marinova, Mihail Tarassov, Liliya Tsvetanova, E. Tacheva","doi":"10.52215/rev.bgs.2023.84.3.211","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.211","url":null,"abstract":"Here we present statistical and geochemical data on 12 minor and trace elements from pyrite- and marcasite-bearing samples from drillhole cores in the Sarnak (also known as Surnak) gold deposit. The data were obtained by SEM-EDX and single-spot LA-ICP-MS analyses in marcasite and different pyrite zones – core, mantle, and rim.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139188533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Garnet (REE+Y)-bearing mineral association in pegmatite from the Chepino lithotectonic Unit, Western Rhodopes 西罗多佩山脉切皮诺岩石构造单元伟晶岩中含石榴石（REE+Y）的矿物关联
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.63
R. Vassileva, Sylvina Georgieva, J. Cempírek, V. Grozdev, R. Škoda, Elitsa Stefanova
{"title":"Garnet (REE+Y)-bearing mineral association in pegmatite from the Chepino lithotectonic Unit, Western Rhodopes","authors":"R. Vassileva, Sylvina Georgieva, J. Cempírek, V. Grozdev, R. Škoda, Elitsa Stefanova","doi":"10.52215/rev.bgs.2023.84.3.63","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.63","url":null,"abstract":"Large pegmatite body/bodies are outcropping in the “Suhata Reka” quarry, near the town of Rakitovo. Their bulk mineral composition with dominant K-feldspar (40%), plagioclase (30%), quartz (25%) and mica (≤ 5%) is complemented by (REE+Y)-bearing association of primary and secondary accessories. Zircon, monazite, xenotime, scarce apatite and noticeable amount of garnet are among the pegmatite primary minerals. The cm-sized almandine-spessartine crystals contain numerous fractures which host secondary (REE+Y)-bearing phosphate (xenotime, cheralite) and silicate minerals (e.g. REE-epidote). Formation of the late-stage REE-mineralization in garnet is due to its hydrothermal alteration and redistribution of REE+Y in the secondary phases.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139188885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ore-bearing potential of target 185 in the Chelopech deposit: a LA-ICP-MS study 切洛佩奇矿床中 185 个目标的含矿潜力：LA-ICP-MS 研究
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.219
Victoria Vangelova, Martin Dobrev
{"title":"Ore-bearing potential of target 185 in the Chelopech deposit: a LA-ICP-MS study","authors":"Victoria Vangelova, Martin Dobrev","doi":"10.52215/rev.bgs.2023.84.3.219","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.219","url":null,"abstract":"The concentrations of trace elements in pyrite and enargite-luzonite from target 185 of the copper-gold high sulphidation Chelopech deposit were determined by LA-ICP-MS. Their average contents in ppm based on 12 analyses of pyrite and 10 analyses of enargite-luzonite are respectively: Ti (6548) > Cu (3449) > V (580) > Mn (299) > Pb (173) > As (157) > Se (149) > Te (122) > Zn (80) > Co (79) > Bi (41) > Cr (29) > W (25) > Sn (22) > Ni (17) > Au, Ga (15) > Ag (14) > Mo (9) > Sb (5) > Tl (4) > Hg (1) > In (0.2) for the first one and Fe (26531) > Zn (22140) > Sb (11014) > Bi (7956) > Se (1730) > Sn (1016) > Pb (995) > Te (326) > Mn (205) > Mo (170) > Hg (100) > Ge (88) > Ag (46) > Ti (42) > W (25) > Cd (24) > V (19) > Au (16) > In (4) > Tl (3) > Ga (1) for the second.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139190460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First station from the Sofia University Seismic Network 索非亚大学地震网络的第一个站点
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.337
Lyuba Dimova, L. Dimitrova, R. Raykova
{"title":"First station from the Sofia University Seismic Network","authors":"Lyuba Dimova, L. Dimitrova, R. Raykova","doi":"10.52215/rev.bgs.2023.84.3.337","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.337","url":null,"abstract":"The first seismic station of the Seismic Network of Sofia University (SNSU) was built in 2023 with funding from the Scientific Research Fund of Sofia University “St. Kliment Ohridski”. The station is operating in the Faculty of Physics since September 2023. The equipment consists of a seismometer Geophone 4.5 Hz and a digitiser PSN-ADC24. A portable computer is used for data recording and archiving. During the month of station operation several earthquakes in Bulgaria and neighbouring countries were analysed. The spectrum of the seismic noise from the station was analysed for different periods. The characteristics of the terrain of station installation were also determined using the method H/V. Although the equipment has modest capabilities, it allows students and young scientists to work directly with the seismic equipment and to do scientific investigations. The possibility of scientific research will be expanded renewing the equipment (purchased in October 2023).","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139190729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact аssessment of the September 2022 disaster in the area of Karavelovo, Bogdan, and Slatina villages, Karlovo Municipality 2022 年 9 月灾难对卡尔洛沃市卡拉韦洛沃、博格丹和斯拉蒂纳村地区的影响评估
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.237
Zornitsa Dotseva, I. Gerdjikov, D. Vangelov
{"title":"Impact аssessment of the September 2022 disaster in the area of Karavelovo, Bogdan, and Slatina villages, Karlovo Municipality","authors":"Zornitsa Dotseva, I. Gerdjikov, D. Vangelov","doi":"10.52215/rev.bgs.2023.84.3.237","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.237","url":null,"abstract":"On September 2nd, 2022, an intense and prolonged rainfall event caused severe flooding, landslides, debris flows, and groundwater rise, resulting in substantial damage, particularly in the northern slopes of Sredna Gora Mountain in Central Bulgaria. Various methodologies, including field analysis, remote sensing, and GIS tools, were employed to analyze the disaster’s causes and field conditions. Active sediment sources, deposition patterns, and mapping techniques were used to document the disaster’s impact. The results showed that the disaster resulted from the formation of numerous landslides, and rapid hydrological response led to riverine flooding, high-speed flows, and sediment deposition. An important contribution of this study is the generated landslide inventory map, that can be used for mountain road reconstruction and the planning of mitigation measures.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139190875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mercury in geological materials from Bulgaria: Significance, applications, new analytical capabilities, and initial results 保加利亚地质材料中的汞：意义、应用、新的分析能力和初步结果
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.93
Svetoslav V. Georgiev, Lora Bidzhova
{"title":"Mercury in geological materials from Bulgaria: Significance, applications, new analytical capabilities, and initial results","authors":"Svetoslav V. Georgiev, Lora Bidzhova","doi":"10.52215/rev.bgs.2023.84.3.93","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.93","url":null,"abstract":"The chemical properties of mercury (Hg) such as volatility, organic affinity, multiple oxidation states and extreme biotoxicity, determine its various industrial applications, but also health hazard concerns. Mercury data on geologic materials are important for characterizing the main sources and sinks of Hg, for tracking volcanic activity in the geology past, for refining regional and global stratigraphic correlations, and for minimizing anthropogenic mercury emissions. Newly obtained Hg and CHNS analyzers available at the Geological Institute at the Bulgarian Academy of Sciences, facilitate new geologic and environmental research in Bulgaria. Here we show initial results for the accuracy and precision of our Hg analyses based on repeated measurements of certified reference material NIST 2702 and identify avenues for further analytical improvements. The encouraging results allow for the initiation of diverse geological and ecological studies that are needed, but currently lacking in Bulgaria.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139194282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geochemistry of the Triassic metacarbonate rocks from the Sakar Unit, Sakar-Strandzha zone, SE Bulgaria 保加利亚东南部 Sakar-Strandzha 地区 Sakar 单元三叠纪偏碳酸盐岩的地球化学特征
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.137
Tzvetomila Vladinova, Milena Georgieva
{"title":"Geochemistry of the Triassic metacarbonate rocks from the Sakar Unit, Sakar-Strandzha zone, SE Bulgaria","authors":"Tzvetomila Vladinova, Milena Georgieva","doi":"10.52215/rev.bgs.2023.84.3.137","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.137","url":null,"abstract":"The geochemistry of Triassic metacarbonate rocks from the Sakar unit, Sakar-Strandzha zone recorded condition on deposition environments and primary (protoliths) composition. The metacarbonate yielded trace element distribution that conform seawater condition on shallow shelves under oxic conditions and coincide interpretation of Chatalov (1990). The REE pattern determines low to moderate contamination of terrigenous material. The significant variation of Sr can be efficient for distinguish the metacarbonates in SE Bulgaria.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139195758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Picropharmacolite and arsenolite from the Mareshnitsa ore occurrence, Eastern Rhodopes – new minerals for Bulgaria 东罗多佩山脉 Mareshnitsa 矿藏中的黝帘石和砷黝帘石--保加利亚的新矿物
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.27
S. Encheva, Nikolay Gospodinov, Denka Yanakieva, P. Petrov, Stela Atanasova-Vladimirova
{"title":"Picropharmacolite and arsenolite from the Mareshnitsa ore occurrence, Eastern Rhodopes – new minerals for Bulgaria","authors":"S. Encheva, Nikolay Gospodinov, Denka Yanakieva, P. Petrov, Stela Atanasova-Vladimirova","doi":"10.52215/rev.bgs.2023.84.3.27","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.27","url":null,"abstract":"New for Bulgaria arsenic minerals picropharmacolite and arsenolite from the Mareshnitsa ore occurrence, Eastern Rhodopes are presented. Their formation is due to the oxidation of arsenopyrite, which is abundant in the samples. The composition of the picropharmacolite from Mareshnitsa differs from the picropharmacolite from other deposits around the world. It is characterized by relatively few impurities and excess of Mg, which substitute part of Ca. This is resulting in smaller a parameter of the unit cell. The presence of these two new arsenic minerals sheds additional light on the behaviour of arsenic in the area.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139191339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of borehole cameras in the field of Engineering Geology and Hydrogeology 钻孔照相机在工程地质和水文地质领域的应用
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.287
Miroslav Krastanov
{"title":"Application of borehole cameras in the field of Engineering Geology and Hydrogeology","authors":"Miroslav Krastanov","doi":"10.52215/rev.bgs.2023.84.3.287","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.287","url":null,"abstract":"The use of borehole cameras in Bulgaria is increasingly used in hydrogeology and engineering geology. The resulting photographs and movies contribute to solving problems related to the study and assessment of the condition of water supply wells, as well as to obtain a clear picture on the assessment of rock massifs for their suitability for various types of construction. Borehole cameras on the territory of our country are more widely used in the field of hydrogeology compared to engineering geology. The purpose of this article is to present the possible applications of this technology, which has been improved over the years, for the study of rock massifs in their study for various infrastructure objects. Also. to shed light on the benefits of using boreholes in surveying the various water sources.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139191350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Colloform sphalerite in Pcheloyad Pb-Zn deposit, Eastern Rodopes, Bulgaria 保加利亚东罗多佩斯地区 Pcheloyad 铅锌矿床中的辉锑矿
Review of the Bulgarian Geological Society Pub Date : 2023-12-01 DOI: 10.52215/rev.bgs.2023.84.3.59
Svetla Stariradeva, P. Petrov, Denka Yanakieva
{"title":"Colloform sphalerite in Pcheloyad Pb-Zn deposit, Eastern Rodopes, Bulgaria","authors":"Svetla Stariradeva, P. Petrov, Denka Yanakieva","doi":"10.52215/rev.bgs.2023.84.3.59","DOIUrl":"https://doi.org/10.52215/rev.bgs.2023.84.3.59","url":null,"abstract":"A late-deposited colloform banded sphalerite from Pcheloyad and Sporno deposits in samples from the Earth and Man National Museum was studied. Its composition is very close to the theoretical one for sphalerite. Iron, gallium, cadmium and indium are established as trace elements in concentrations lower than those in earlier deposited sphalerite generations. The presence of wurtzite was proved by X-ray powder diffraction. A similar low-temperature colloform banded sphalerite of the Schalenblende type has so far not been described in the lead-zinc Zvezdel-Pcheloyad ore field.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139191356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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