Geochemistry and ore formation最新文献

Some Aspects of the Geochemistry and Natural Radioactivity of the Azov Deposit Ores 亚速矿床矿石地球化学及天然放射性的若干方面

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2021.42.025

E. Sheremet, I. Nikolaev, L. Sietaia, S. Strekozov

{"title":"Some Aspects of the Geochemistry and Natural Radioactivity of the Azov Deposit Ores","authors":"E. Sheremet, I. Nikolaev, L. Sietaia, S. Strekozov","doi":"10.15407/gof.2021.42.025","DOIUrl":"https://doi.org/10.15407/gof.2021.42.025","url":null,"abstract":"The analysis of the Azov deposit of zirconium-rare earth ores as the object capable on qualitative and quantitative parameters to become key for creation and modernization of rare earth subsectors of the industry of Ukraine is carried out. On the basis of the generalized characteristics of zirconium-rare earth mineralization, conclusions were drawn regarding the nature of the increased radioactivity at the Azov deposit, which is mainly due to the presence of certain minerals in the ores. The actual radioactive minerals were found only as inclusions in zircon and do not make a significant contribution to the natural radioactivity of ores. It has been established that the radioactivity is uranium-thorium due to the inclusion of these elements in the composition of the aforementioned minerals. The results of the radiation-hygienic assessment of core samples from the deposit are presented. According to the existing standards, the enclosing rocks of the supra-ore and under-ore strata can be used in all types of construction without restrictions. The ores of the deposit are assigned to the third class in terms of the level of effective specific activity. It was found that there is a significant direct relationship between gamma activity and the total REE content in the field. There is also a correlation between the content of U and Th, the dose rate of γ-radiation and the content of the total REE. It was shown that there is no relationship between these indicators and the ZrO2 content. Analysis of the gamma-ray logs showed the possibility of confidently drawing the boundaries of the ore intervals and fixing the inter-ore intervals. The main stages of the technological process of integrated development, enrichment, processing and storage of enrichment tailings, slags and sludge, which ensure the minimum impact of production on the environment and human health, have been determined.","PeriodicalId":408258,"journal":{"name":"Geochemistry and ore formation","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114305110","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

Complex Geochemical Characteristics of Soils and Plants in Natural Reserve Zones of Ukraine 乌克兰自然保护区土壤和植物的复杂地球化学特征

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2021.42.012

N. Kryuchenko, Yana Zhovinsky, P. Paparyga, O. Zhuk, M.V. Kukhar, K. E. Dmitrenko, T. Popenko

{"title":"Complex Geochemical Characteristics of Soils and Plants in Natural Reserve Zones of Ukraine","authors":"N. Kryuchenko, Yana Zhovinsky, P. Paparyga, O. Zhuk, M.V. Kukhar, K. E. Dmitrenko, T. Popenko","doi":"10.15407/gof.2021.42.012","DOIUrl":"https://doi.org/10.15407/gof.2021.42.012","url":null,"abstract":"The results of a comprehensive analysis of the microelement composition of soils — B, Co, Cu, Mn, Mo, Ni, Zn and plants — Ag, Co, Cu, Mn, Mo, Ni, Pb, Zn (oak (Quercus robur L.), pine (Pinus sylvestris L.) perennial grasses — Kupena (Polygonatum multiflorum (L.) All.), wheatgrass (Elymus repens (L.) Gould)) of natural reserve belonging to different physical and geographical zones — Polessky reserve (mixed forest zone), Roztochya reserve (broad-leaved forest zone), Kanevsky reserve (forest-steppe zone), the reserve «Askania Nova» (steppe zone), the Chernogorsk massif of the Carpathian Biosphere Reserve (KBR, Ukrainian Carpathians), which are proposed to be considered as background. It was found that in the soils of mixed and broad-leaved forests and the Chernogorsk massif KBR with an increase in the content of gross forms of Co, Cu, Ni, Zn, the content of their mobile forms increases, this dependence is inverse in the soils of the steppe zone, which is associated with a decrease in soil acidity and mobility microelements A positive correlation was revealed between the humus content in soils and Zn, Co (gross and mobile forms) and negative — B, Mo in the soils of all reserve zones. It was found that the greatest biogeochemical activity is characteristic of plants in the zone of deciduous forests — oak leaves (Quercus robur L.) and pine needles (Pinus sylvestris L.).","PeriodicalId":408258,"journal":{"name":"Geochemistry and ore formation","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124564257","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

Uranium-Lead by Monacite Geochronology of Granites Distributed in the Middle Current of ihe River Ros (Ros-Tikich Megablock Ukrainian Shield) 罗斯河(Ros- tikich Megablock乌克兰盾)中流花岗岩的铀铅锆石年代学研究

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2021.42.089

Т.I. Dovbush, L. Stepaniuk, О.V. Ziultsle, Т.B. Yaskevych

{"title":"Uranium-Lead by Monacite Geochronology of Granites Distributed in the Middle Current of ihe River Ros (Ros-Tikich Megablock Ukrainian Shield)","authors":"Т.I. Dovbush, L. Stepaniuk, О.V. Ziultsle, Т.B. Yaskevych","doi":"10.15407/gof.2021.42.089","DOIUrl":"https://doi.org/10.15407/gof.2021.42.089","url":null,"abstract":"Granitoids play a leading role in the geological structure of the Ros-Tikich megablock. The rocks of the Ros-Tikich series, which form the supercrystalline base here, have survived among the granitoids only in the form of some remnants of different sizes. In the coastal outcrops of the middle course of the river Ros (east of Bila Tserkva) and in the quarries located near the river, the most common are two-feldspar granitoids, isolated as part of two complexes – Uman and Stavyshche. Plagiogranitoids and supercrustal rocks have survived among them in the form of separate fragments. Of the accessory uranium-containing minerals, zircon and titanite are present in two-field spar granites, and monazite was found in single samples of granites in which titanite was absent. The age of obscure porphyry-like granite discovered by the Ostrivsk quarry – 2063.5 ± 1.2 million years and uniformgrained granite, distributed in the quarry of the village of Bovkun – 2042.5 ± 8.6 million years. The obtained values of the isotopic age of these granites are in good agreement with the results of uranium-lead isotopic dating of zircons from twofeldspar granites of the Ros-Tikich megablock (1990-2080 million years). This allows us to propose to combine the granites of the Stavyshche and Uman complexes into one Paleoproterozoic complex.","PeriodicalId":408258,"journal":{"name":"Geochemistry and ore formation","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116706953","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

Breed Associations of the Gaisin Block of the Ukrainian Shield 乌克兰盾Gaisin块的品种协会

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2021.42.061

O. Ziultsle, V. Ziultsle

引用次数: 1

Technogenic pollution (micro-element composition) of the snow cover of mountain tops of the Carpathian biosphere reserve 喀尔巴阡山脉生物圈保护区山顶积雪的技术污染(微量元素组成)

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2019.40.006

N. Kryuchenko, E. Zhovinsky, P. S. Paparyha

引用次数: 1

Uranium-Lead Geochronology on Monacite of Granites of the Lypnyazka Massif and its Framing (Ingul Megablock of the Ukrainian Shield) 利普尼亚兹卡地块花岗岩Monacite及其构造的铀铅年代学研究(乌克兰地盾英戈尔兆岩)

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2021.42.071

L. Stepanyuk, S. Kurylo, V. Syomka, T. Dovbush, S. Bondarenko, O. Kovtun, I. Kotvitska

{"title":"Uranium-Lead Geochronology on Monacite of Granites of the Lypnyazka Massif and its Framing (Ingul Megablock of the Ukrainian Shield)","authors":"L. Stepanyuk, S. Kurylo, V. Syomka, T. Dovbush, S. Bondarenko, O. Kovtun, I. Kotvitska","doi":"10.15407/gof.2021.42.071","DOIUrl":"https://doi.org/10.15407/gof.2021.42.071","url":null,"abstract":"The Lipnyazka massif is located in the Dobrovelychkivsky district of the Kirovohrad region, v. Lipnyazka and further south. Structurally, it is located within the Bratskyy Synclinorium of the Ingul megablock and coincides with the Mikhailovsky anticline. The main petrotype of the massif rocks are porphyry-like granites, often with a gneiss-like texture, aplito-pegmatoid, pegmatoid granites and pegmatites. The latter most often form secant vein bodies. Uranium-lead isotopic dating of granitoids of the Lipnyazka granite massif has been performed, with which a number of deposits and ore occurrences of rare elements, primarily lithium, are spatially and probably genetically connected. The age of porphyry-like granites (2032 ± 6 million years), which is the main petrotype of rocks distributed in the area of the village of Limestone and pegmatoid granites (2027 ± 1 million years), which cut porphyry-like in the form of vein bodies. Aplithoid framed granites (2046 ± 8 million years old), common in the area of the mouth of the Sukhyi Tashlyk River (Dobryanka village), are somewhat older. Based on the results of determining the isotopic composition of strontium in the accessory apatite of granites, a conclusion was made about the upper crust source of granites of the Lipnyazka massif (87Sr/86Sr – 0.730-0.785).","PeriodicalId":408258,"journal":{"name":"Geochemistry and ore formation","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114110406","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

Petrological aspects of high-titanium igneous rocks formation 高钛火成岩形成的岩石学方面

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2019.40.023

S. Kryvdik, O. Dubyna, V. Gatsenko

引用次数: 0

Isotop-Geochemistry properties of carbonate formations of Crimea 克里米亚碳酸盐岩地层的同位素地球化学特征

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2019.40.064

V. Zagnitko, E. Naumenko, V. Moroz, L. Proskurka

引用次数: 0

Rare-earth deposits of a non-traditional type in the Azov part of the Ukrainian Shield 乌克兰地盾亚速海地区非传统类型的稀土矿床

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2022.43.074

L. Sietaia, I. Nikolaev, S. Strekozov

{"title":"Rare-earth deposits of a non-traditional type in the Azov part of the Ukrainian Shield","authors":"L. Sietaia, I. Nikolaev, S. Strekozov","doi":"10.15407/gof.2022.43.074","DOIUrl":"https://doi.org/10.15407/gof.2022.43.074","url":null,"abstract":"The geological structure and prospects of a group of rare earth objects of exogenous origin, unconventional for the Ukrainian industry, are considered. According to the authors, this is mainly the clay weathering crust of granitoids and other aluminosilicate rocks, which contains sorbed or close to them elements of the yttrium group. A feature of ores of this type that may interest investors is the possibility of relatively simple and inexpensive extraction of REE. As an example, a brief description of specific objects within the Azov part of the Ukrainian shield and on its border with Donbas is given. This is the weathering crust of subalkaline rare-metal granites of the Yekateriniv and Starodubiv massifs, aluminosilicate metamorphic rocks of the Valerianiv area, and tectonic mélange zone argillites of the Zhogoliv area. The Y-Ta-Nb type of deposits was established on the massifs, and mainly yttrium-earth deposits on the metamorphic rocks. The actual results of the analytical research made it possible to draw conclusions about the qualitative and quantitative composition of ores and forecast resources. A comparison of industrial technological methods of extracting Y and ∑REE from loose ores of the Zhogoliv ore deposit was made. The expediency of further searches and research in order to expand the mineral raw material rare earth base of Ukraine is substantiated.","PeriodicalId":408258,"journal":{"name":"Geochemistry and ore formation","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125183565","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

Dyke Rocks of the Korsun-Novomyrhorod Anorthosite-Rapakivigranite Pluton Korsun-Novomyrhorod斜长岩- rapakivanite岩体的岩脉岩

Geochemistry and ore formation Pub Date : 1900-01-01 DOI: 10.15407/gof.2021.42.036

S. Kryvdik, O. Dubyna, V. Belskyy

{"title":"Dyke Rocks of the Korsun-Novomyrhorod Anorthosite-Rapakivigranite Pluton","authors":"S. Kryvdik, O. Dubyna, V. Belskyy","doi":"10.15407/gof.2021.42.036","DOIUrl":"https://doi.org/10.15407/gof.2021.42.036","url":null,"abstract":"In spite of significant intensity and composition variability of dyke magmatism in the Ingul mega-block, in the Korsun- Novomyrhorod anorthosite-rapakivi granite pluton (KNP) dyke magmatism is restricted. To present day, dykes of basic composition have not been described in this pluton. Previously mentioned gabbro-diabases dykes or diabase porphyrites should be classified as medium rocks as well as they are enriched by SiO2, Na2O and K2O. The authors succeeded studied the dyke from the Nosachiv massif, which can be considered the only known dyke of basic composition in KNP. By chemical composition, this rock is similar to the Ti-enriched gabroids of KNP, but differs in the presence of high-Ti magnetite (not typical mineral in plutonic rocks of KNP), and in terms of SiO2 and Na2O + K2O it should be classified as subalkaline. Most of the dikes known in the KNP are mainly monzonites, monzosienites, less widespread syenites, granite dikes are quite rare too. As our studies have shown, in the previously described porphyry dykes diabase structure is not exihibited. Furthermore pyroxene content is the first percent, and a significant (or most) of them are probably xenogeneic. According to chemical composition such dykes should be classified as medium in composition, because the SiO2 content in them is in the range of 54-60 % and elevated content of K2O, often prevails over Na2O, by low MgO and higher TiO2 they are similar to gabroid of KNP. In these rocks, normative orthoclase and quartz are calculated in significant quantities. Therefore, we offer to consider these rocks as dyke analogues of monzonites (quartz-containing or quartz) and regard as monzonite porphyry. The significant distribution of monzonites and syenites and their dyke analogues denote clear pronounced monzonite-syenite trend of evolution in KNP.","PeriodicalId":408258,"journal":{"name":"Geochemistry and ore formation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123141833","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