Pub Date : 2019-09-09DOI: 10.30695/zrmo/2019.1484.07
E. V. Mashina, Машина Екатерина Валерьевна, S. Shanina, Шанина Светлана Николаевна
The study of the amino acid composition of gallstones of the Komi Republic residents has shown the significant differences in cholesterol and pigment specimens. It has been revealed that during formation of the carbonate or phosphate component in gallstones, the specificity of the protein component is of great importance. It is shown that the content of amino acids is higher in samples with presence of the mineral component and is non-uniform through the cross-section of gallstones. The presence of D-forms of amino acids in pigment and cholesterol gallstones is a consequence of the participation in their formation of various microorganisms.
{"title":"Amino acid composition of gallstones and its connection with the mineral component","authors":"E. V. Mashina, Машина Екатерина Валерьевна, S. Shanina, Шанина Светлана Николаевна","doi":"10.30695/zrmo/2019.1484.07","DOIUrl":"https://doi.org/10.30695/zrmo/2019.1484.07","url":null,"abstract":"The study of the amino acid composition of gallstones of the Komi Republic residents has shown the significant differences in cholesterol and pigment specimens. It has been revealed that during formation of the carbonate or phosphate component in gallstones, the specificity of the protein component is of great importance. It is shown that the content of amino acids is higher in samples with presence of the mineral component and is non-uniform through the cross-section of gallstones. The presence of D-forms of amino acids in pigment and cholesterol gallstones is a consequence of the participation in their formation of various microorganisms.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41456785","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}
Pub Date : 2019-09-09DOI: 10.30695/zrmo/2019.1484.01
M. N. Petrovskiy, Петровский Михаил Николаевич
The Nizʼyavrski alkaline massif includes the rocks of two intrusive phases: (1) alkaline syenites and (2) alkaline quartz syenites. The crystallization age of the latter determined by the U-Pb method for zircon is 2656 ± 3 Ma. According to isotopic (Rb-Sr and Sm-Nd) data, the rocks of the massif have a mantle origin. It is suggested that the source of their melts, as well as the source of melts for other Neoarchean alkaline intrusions of the Kola province belonging to the association of alkaline gabbro, nepheline syenites, alkaline syenites, and granosyenite, was the BSE mantle reservoir. Rocks of the massif contain Ta-Nb mineralization represented by pyrochlore, which distinguishes the studied intrusion from the other Neoarchean alkaline magmatic bodies of the province.
{"title":"Niz'yavrski alkaline massif: age, isotopic characteristics and rare-metal mineralization","authors":"M. N. Petrovskiy, Петровский Михаил Николаевич","doi":"10.30695/zrmo/2019.1484.01","DOIUrl":"https://doi.org/10.30695/zrmo/2019.1484.01","url":null,"abstract":"The Nizʼyavrski alkaline massif includes the rocks of two intrusive phases: (1) alkaline syenites and (2) alkaline quartz syenites. The crystallization age of the latter determined by the U-Pb method for zircon is 2656 ± 3 Ma. According to isotopic (Rb-Sr and Sm-Nd) data, the rocks of the massif have a mantle origin. It is suggested that the source of their melts, as well as the source of melts for other Neoarchean alkaline intrusions of the Kola province belonging to the association of alkaline gabbro, nepheline syenites, alkaline syenites, and granosyenite, was the BSE mantle reservoir. Rocks of the massif contain Ta-Nb mineralization represented by pyrochlore, which distinguishes the studied intrusion from the other Neoarchean alkaline magmatic bodies of the province.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48533785","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}
Pub Date : 2019-06-25DOI: 10.30695/ZRMO/2019.1483.09
Y. Voytekhovsky, Войтеховский Юрий Леонидович
The article is devoted to the consideration of new interpretations of the Curie dissymmetry principle in the book by V. P. Afanasyev (2018) and the article by B. S. Levin (2018). It is shown that correct understanding of the symmetry and dissymmetry categories, and the Curie principle as a whole does not need the nature perception to be divided into the logical and ontological levels. It is noticed that Curieʼs principle relates to superpositions of homogeneous phenomena. Superpositions of heterogeneous phenomena should be preliminary divided into homogeneous parts using the methods of relative or absolute geochronology. Directions for further research on the Curie principle are suggested.
{"title":"Once again about the Curie dissymmetry principle","authors":"Y. Voytekhovsky, Войтеховский Юрий Леонидович","doi":"10.30695/ZRMO/2019.1483.09","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1483.09","url":null,"abstract":"The article is devoted to the consideration of new interpretations of the Curie dissymmetry principle in the book by V. P. Afanasyev (2018) and the article by B. S. Levin (2018). It is shown that correct understanding of the symmetry and dissymmetry categories, and the Curie principle as a whole does not need the nature perception to be divided into the logical and ontological levels. It is noticed that Curieʼs principle relates to superpositions of homogeneous phenomena. Superpositions of heterogeneous phenomena should be preliminary divided into homogeneous parts using the methods of relative or absolute geochronology. Directions for further research on the Curie principle are suggested.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45343669","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}
Pub Date : 2019-06-25DOI: 10.30695/ZRMO/2019.1483.03
V. Alekseev, Алексеев Виктор Иванович, Yu. B. Marin, Марин Юрий Борисович, O. Galankina, Галанкина Ольга Леонидовна
For the first time, lithium-fluoric granites and ongonites of the Arga-Ynnakh-Khaysky massif (East Yakutia) have been revealed to contain an accessory complex of tungsten-bearing tantalum-niobates ( columbite-(Fe), columbite-(Mn), tantalite-(Mn), minerals of microlite group, tantalic rutile ) including «wolframoixiolite». These rocks containing wolframoixiolite, their composition and typomorphic features are described: they are highly ferriferous, with major geochemical role of niobium and wide variations of tungsten and tantalum concentrations. Wolframoixiolite occurs there in paragenesis with tungsten-bearing columbite-(Mn), tantalum-niobium ferberite, lepidolite and topaz. Wolframoixiolite of the Arga-Ynnakh-Khaysky massif was formed on a late-magmatic stage of lithium-fluoric granites crystallization by polymorphic transformation of columbite-(Fe). The study of accessory mineralization in rare-metal granites of Eurasia allows, taking into account a new find, to draw a conclusion, that wolframoixiolite is typomorphic accessory mineral in lithium-fluoric granites and may be looked as the indicator of rare-metal-granite magmatism with accompanying tin-rare-metal ore mineralization.
{"title":"Wolframoixiolite in lithium-fluoric granites of the Arga-Ynnakh-Khaysky massif, Yakutia","authors":"V. Alekseev, Алексеев Виктор Иванович, Yu. B. Marin, Марин Юрий Борисович, O. Galankina, Галанкина Ольга Леонидовна","doi":"10.30695/ZRMO/2019.1483.03","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1483.03","url":null,"abstract":"For the first time, lithium-fluoric granites and ongonites of the Arga-Ynnakh-Khaysky massif (East Yakutia) have been revealed to contain an accessory complex of tungsten-bearing tantalum-niobates ( columbite-(Fe), columbite-(Mn), tantalite-(Mn), minerals of microlite group, tantalic rutile ) including «wolframoixiolite». These rocks containing wolframoixiolite, their composition and typomorphic features are described: they are highly ferriferous, with major geochemical role of niobium and wide variations of tungsten and tantalum concentrations. Wolframoixiolite occurs there in paragenesis with tungsten-bearing columbite-(Mn), tantalum-niobium ferberite, lepidolite and topaz. Wolframoixiolite of the Arga-Ynnakh-Khaysky massif was formed on a late-magmatic stage of lithium-fluoric granites crystallization by polymorphic transformation of columbite-(Fe). The study of accessory mineralization in rare-metal granites of Eurasia allows, taking into account a new find, to draw a conclusion, that wolframoixiolite is typomorphic accessory mineral in lithium-fluoric granites and may be looked as the indicator of rare-metal-granite magmatism with accompanying tin-rare-metal ore mineralization.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45793605","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}
Pub Date : 2019-06-25DOI: 10.30695/ZRMO/2019.1483.06
M. Krzhizhanovskaya, Кржижановская Мария Георгиевна, V. A. Firsova, Фирсова Вера Александровна, R. Bubnova, Бубнова Римма Сергеевна, S. Britvin, Бритвин Сергей Николаевич, Olga G. Bubnova, Бубнова Ольга Геннадьевна, I. Pekov, Пеков Игорь Викторович
In situ high-temperature powder X-ray diffraction (HTPXRD) and differential scanning calorimetry (DSC) of three natural borosilicates have been performed in the temperature range of 25—1200 °С. Axinite-(Mn) melts incongruently at 900 °С forming anorthite and bustamite. Leucosphenite decomposes at 850 °С to fresnoite and cristobalite. According to DSC data, kornerupine decomposes at 1177 °С and sapphirine, indialite, and spinel were observed as the products of kornerupine heating. The calculation and orientation of thermal expansion tensor have been performed using HTPXRD data. The study showed that the borosilicates expand weakly and almost isotropically. The average volumetric thermal expansion coefficients are 21.3, 22.7, and 32.9 ∙ 10 –6 °C –1 for axinite-(Mn), kornerupine, and leucosphenite, respectively. Leucosphenite has a maximum volumetric expansion most likely due to the pronounced layered character of the crystal structure. The least symmetric structure of axinite-(Mn) has the maximal anisotropy of thermal expansion in the temperature range of 600—900 °C.
{"title":"High-temperature behavior of axinite-(Mn), kornerupine and leucosphenite","authors":"M. Krzhizhanovskaya, Кржижановская Мария Георгиевна, V. A. Firsova, Фирсова Вера Александровна, R. Bubnova, Бубнова Римма Сергеевна, S. Britvin, Бритвин Сергей Николаевич, Olga G. Bubnova, Бубнова Ольга Геннадьевна, I. Pekov, Пеков Игорь Викторович","doi":"10.30695/ZRMO/2019.1483.06","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1483.06","url":null,"abstract":"In situ high-temperature powder X-ray diffraction (HTPXRD) and differential scanning calorimetry (DSC) of three natural borosilicates have been performed in the temperature range of 25—1200 °С. Axinite-(Mn) melts incongruently at 900 °С forming anorthite and bustamite. Leucosphenite decomposes at 850 °С to fresnoite and cristobalite. According to DSC data, kornerupine decomposes at 1177 °С and sapphirine, indialite, and spinel were observed as the products of kornerupine heating. The calculation and orientation of thermal expansion tensor have been performed using HTPXRD data. The study showed that the borosilicates expand weakly and almost isotropically. The average volumetric thermal expansion coefficients are 21.3, 22.7, and 32.9 ∙ 10 –6 °C –1 for axinite-(Mn), kornerupine, and leucosphenite, respectively. Leucosphenite has a maximum volumetric expansion most likely due to the pronounced layered character of the crystal structure. The least symmetric structure of axinite-(Mn) has the maximal anisotropy of thermal expansion in the temperature range of 600—900 °C.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44827692","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}
Pub Date : 2019-06-25DOI: 10.30695/zrmo/2019.1483.00
Филатов Станислав Константинович
Обобщаются сведения о симметрии минералов в различных земных оболочках как функции от температуры, давления и совместного воздействия этих параметров. Показывается, что распределение минеральных видов по симметрийной иерархии, в частности существование моноклинного максимума и триклинного минимума в симметрийной статистике окружающего нас мира минералов и неорганических соединений, определяется прежде всего двумя разнонаправленными факторами — динамичностью решетки (количеством не фиксированных симметрией параметров элементарной ячейки) и экономичностью кристаллического строения (максимальной кратностью атомных позиций, допускаемой данной точечной группой). С ростом температуры симметрия вещества обычно повышается, с ростом давления — понижается при перманентном сжатии структуры и повышается при ее реконструкции. Совместное возрастание температуры и давления при погружении в глубь Земли вызывает устойчивое повышение средней симметрии горной породы от единиц до максимальной величины 48 индекса Доливо-Добровольского. Многопараметричность симметрийной статистики минералов позволяет оставить без комментариев некоторые флуктуации зависимости до их проверки временем.
{"title":"Симметрийная статистика минеральных видов в различных термодинамических обстановках","authors":"Филатов Станислав Константинович","doi":"10.30695/zrmo/2019.1483.00","DOIUrl":"https://doi.org/10.30695/zrmo/2019.1483.00","url":null,"abstract":"Обобщаются сведения о симметрии минералов в различных земных оболочках как функции от температуры, давления и совместного воздействия этих параметров. Показывается, что распределение минеральных видов по симметрийной иерархии, в частности существование моноклинного максимума и триклинного минимума в симметрийной статистике окружающего нас мира минералов и неорганических соединений, определяется прежде всего двумя разнонаправленными факторами — динамичностью решетки (количеством не фиксированных симметрией параметров элементарной ячейки) и экономичностью кристаллического строения (максимальной кратностью атомных позиций, допускаемой данной точечной группой). С ростом температуры симметрия вещества обычно повышается, с ростом давления — понижается при перманентном сжатии структуры и повышается при ее реконструкции. Совместное возрастание температуры и давления при погружении в глубь Земли вызывает устойчивое повышение средней симметрии горной породы от единиц до максимальной величины 48 индекса Доливо-Добровольского. Многопараметричность симметрийной статистики минералов позволяет оставить без комментариев некоторые флуктуации зависимости до их проверки временем.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":"148 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69567370","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}
Pub Date : 2019-03-05DOI: 10.30695/ZRMO/2019.1481.05
D. Bukhanova, Д С Буханова, V. Chubarov, В М Чубаров
Composition and typomorphic features have been studied for rare earths-bearing minerals from the central part of the Malmyzhskoe gold-copper-porphyry deposit. This deposit is located in the Russian Far East, approximately 220 km northeast from Khabarovsk city. The deposit porphyry clusters occur as diorite and granodiorite stocks of Cretaceous age intruding the hornfels-altered siltstone and sandstone sedimentary sequences. The rare earth mineralization in ores and altered host rocks is represented by anhydrous phosphates (monazite, xenotime, REE -bearing apatite), silicates (allanite, huttonite), fluorocarbonates (synchysite) and oxides (davidite). These minerals occur there as individuals, but also they shows reactionary relations between them and ore minerals in altered rocks. It means that rare earth minerals in the central part of the Malmyzhskoe deposit participated actively in metasomatic processes, and likely they have a hydrothermal origin.
{"title":"Rare earth minerals in ores of the malmyzhskoe gold-copper-porphyry deposit (Khabarovsky krai)","authors":"D. Bukhanova, Д С Буханова, V. Chubarov, В М Чубаров","doi":"10.30695/ZRMO/2019.1481.05","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1481.05","url":null,"abstract":"Composition and typomorphic features have been studied for rare earths-bearing minerals from the central part of the Malmyzhskoe gold-copper-porphyry deposit. This deposit is located in the Russian Far East, approximately 220 km northeast from Khabarovsk city. The deposit porphyry clusters occur as diorite and granodiorite stocks of Cretaceous age intruding the hornfels-altered siltstone and sandstone sedimentary sequences. The rare earth mineralization in ores and altered host rocks is represented by anhydrous phosphates (monazite, xenotime, REE -bearing apatite), silicates (allanite, huttonite), fluorocarbonates (synchysite) and oxides (davidite). These minerals occur there as individuals, but also they shows reactionary relations between them and ore minerals in altered rocks. It means that rare earth minerals in the central part of the Malmyzhskoe deposit participated actively in metasomatic processes, and likely they have a hydrothermal origin.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46932112","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}
Pub Date : 2019-03-05DOI: 10.30695/ZRMO/2019.1481.02
T. В. Ilinskaya, Т Б Ильинская
The article is an analysis of materials on the history of science (primarily mineralogy), which make it possible to understand the role of scientific societies in the development of the creativity of scientists. The author of this article was primarily interested in the personal, «human» dimension of the problem. The materials for solving this problem were the memoirs and epistolary of scientists, as well as historiographic materials accompanying the activities of the Russian Mineralogical Society in the period from the 19 th to the middle of the 20 th century. The recent 200 th anniversary of the RMS was a vivid testimony to the viability of the Society, and therefore the focus of the author of the proposed article was that of the «centripetal forces» that allowed the RMS to be preserved, while many other scientific societies disintegrated. In the course of the analysis of the above materials, the following motives are outlined that determine the work of the scientist within the scientific community: scope for personal initiative, the possibility of consolidating efforts, material support for research. Additional incentives for membership in the RMS were revealed: the Society as a post-graduate school, the Society as a guarantor of the traditions of scientific ethics. In addition, the double genesis of the RMS was revealed, which was a continuation of the European line of mineralogy development and at the same time a new direction in domestic science, which eventually becomes the leading one.
{"title":"Russian mineralogical society as a socio-historical phenomenon (Russian mineralogical society in the XIX—first half of the XX century)","authors":"T. В. Ilinskaya, Т Б Ильинская","doi":"10.30695/ZRMO/2019.1481.02","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1481.02","url":null,"abstract":"The article is an analysis of materials on the history of science (primarily mineralogy), which make it possible to understand the role of scientific societies in the development of the creativity of scientists. The author of this article was primarily interested in the personal, «human» dimension of the problem. The materials for solving this problem were the memoirs and epistolary of scientists, as well as historiographic materials accompanying the activities of the Russian Mineralogical Society in the period from the 19 th to the middle of the 20 th century. The recent 200 th anniversary of the RMS was a vivid testimony to the viability of the Society, and therefore the focus of the author of the proposed article was that of the «centripetal forces» that allowed the RMS to be preserved, while many other scientific societies disintegrated. In the course of the analysis of the above materials, the following motives are outlined that determine the work of the scientist within the scientific community: scope for personal initiative, the possibility of consolidating efforts, material support for research. Additional incentives for membership in the RMS were revealed: the Society as a post-graduate school, the Society as a guarantor of the traditions of scientific ethics. In addition, the double genesis of the RMS was revealed, which was a continuation of the European line of mineralogy development and at the same time a new direction in domestic science, which eventually becomes the leading one.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46106568","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}
Pub Date : 2019-03-05DOI: 10.30695/ZRMO/2019.1481.00
I. Kirichenko, Игорь Кириченко, E. Lazareva, Е. В. Лазарева, S. Zhmodik, С М Жмодик, N. L. Dobrezov, Н Л Добрецов, D. Belyanin, Д К Белянин, L. V. Miroshnichenko, Л В Мирошниченко
Paleoreconstruction of events involved in the bottom sedimentation has been carried out on the base of mineral composition of a section of bottom sediments in the Lake IV (the Lake Fumarolnoe). The lower levels are composed there mainly of smectite in association with gypsum and jarosite; they are overlapped by smectite-kaolinite depositions with the large amount of diatom algae shells and the fraboidal pyrite. There is also a layer of sinter opal-pyrite structures and calcite. It is assumed that initially the lake IV was a mud pit with sulfide-bearing solutions, then, after the lowering of water level and the partial exposure of bottom sediments of the surface, the substance has been oxidized. The subsequent phreatic explosion has provided the covering of oxidized substance by the matter of lower layers of the pit. The further situation corresponded to the source, with the cyano-bacterial community developing around the griffin, and it was replaced by the site of a shallow-water lake similar to the contemporary one. The studied sedimentary formation includes two layers of pyroclastic material originated from neighbouring eruptions.
{"title":"Modern mineral formation in the thermal lake Fumarolnoe (Uson caldera, Kamchatka) is the key to paleoreconstruction","authors":"I. Kirichenko, Игорь Кириченко, E. Lazareva, Е. В. Лазарева, S. Zhmodik, С М Жмодик, N. L. Dobrezov, Н Л Добрецов, D. Belyanin, Д К Белянин, L. V. Miroshnichenko, Л В Мирошниченко","doi":"10.30695/ZRMO/2019.1481.00","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1481.00","url":null,"abstract":"Paleoreconstruction of events involved in the bottom sedimentation has been carried out on the base of mineral composition of a section of bottom sediments in the Lake IV (the Lake Fumarolnoe). The lower levels are composed there mainly of smectite in association with gypsum and jarosite; they are overlapped by smectite-kaolinite depositions with the large amount of diatom algae shells and the fraboidal pyrite. There is also a layer of sinter opal-pyrite structures and calcite. It is assumed that initially the lake IV was a mud pit with sulfide-bearing solutions, then, after the lowering of water level and the partial exposure of bottom sediments of the surface, the substance has been oxidized. The subsequent phreatic explosion has provided the covering of oxidized substance by the matter of lower layers of the pit. The further situation corresponded to the source, with the cyano-bacterial community developing around the griffin, and it was replaced by the site of a shallow-water lake similar to the contemporary one. The studied sedimentary formation includes two layers of pyroclastic material originated from neighbouring eruptions.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43284374","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}
Pub Date : 2019-03-05DOI: 10.30695/ZRMO/2019.1481.03
Y. A. Miroshnikova, Я А Мирошникова, A. Chernyavsky, Александр Чернявский, A. V. Bazay, А В Базай
The article presents new data on composition of the platinum group metals (PGM) mineralization of the Yuzhnosopchinsky-1 locality, in the massif of the same name. In the central part of the Kola Region this area is located in the zone of contact between two large layered mafic-ultramafic intrusions: Monchegorsky pluton and Monchetundra intrusion. There is the contact between fine-medium-grained metapyroxenites and coarse-grained metagabbronorites. At some distance from the contact, coarse-grained bodies of plagioclase-pyroxene and plagioclase-amphibole composition contain sulfide, oxide and PGM mineralization. Ore minerals in these vein-shaped bodies are represented mainly by the bornite-chalcopyrite-millerite group, in close spatial association with the magnetite-ilmenite group. Arsenides, tellurides and sulfides of palladium predominate among the PGM minerals.
{"title":"Platinum-metal mineralization of the Yuzhnosopchinsky-1 locality (Monchegorsk ore district, Kola peninsula)","authors":"Y. A. Miroshnikova, Я А Мирошникова, A. Chernyavsky, Александр Чернявский, A. V. Bazay, А В Базай","doi":"10.30695/ZRMO/2019.1481.03","DOIUrl":"https://doi.org/10.30695/ZRMO/2019.1481.03","url":null,"abstract":"The article presents new data on composition of the platinum group metals (PGM) mineralization of the Yuzhnosopchinsky-1 locality, in the massif of the same name. In the central part of the Kola Region this area is located in the zone of contact between two large layered mafic-ultramafic intrusions: Monchegorsky pluton and Monchetundra intrusion. There is the contact between fine-medium-grained metapyroxenites and coarse-grained metagabbronorites. At some distance from the contact, coarse-grained bodies of plagioclase-pyroxene and plagioclase-amphibole composition contain sulfide, oxide and PGM mineralization. Ore minerals in these vein-shaped bodies are represented mainly by the bornite-chalcopyrite-millerite group, in close spatial association with the magnetite-ilmenite group. Arsenides, tellurides and sulfides of palladium predominate among the PGM minerals.","PeriodicalId":36969,"journal":{"name":"Zapiski Rossiiskogo Mineralogicheskogo Obshchestva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48318661","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}
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