Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula)
The present paper has been written on the base of petrographical, geochemical, and mineralogical study of massive sulfide ores and their host rocks from the Panarechenskaya tectonic-volcanic structure in the central part of the Imandra-Varzuga belt. The massive sulfide deposit is situated in the nor...
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ftoceandocs:oai:aquadocs.org:1834/17290 2023-05-15T17:05:03+02:00 Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) Метасоматические преобразования пород, колчеданное оруденение и перспективы золотоносности Панареченской структуры (Кольский полуостров) Kalinin, A. A. Chernyavsky, A. V. 2018 pp.26-36 http://hdl.handle.net/1834/17290 https://doi.org/10.21443/1560-9278-2018-21-1-26-36 ru rus http://vestnik.mstu.edu.ru/show-eng.shtml?art=1926 1560-9278 doi:10.21443/1560-9278-2018-21-1-26-36 http://hdl.handle.net/1834/17290 Вулкано-тектоническая структура Колчеданные руды Метасоматиты Золото Теллуриды Tectonic-volcanic structure Massive sulfide ores Metasomatites Gold Tellurides Journal Contribution Refereed 2018 ftoceandocs https://doi.org/10.21443/1560-9278-2018-21-1-26-36 2023-04-06T17:00:42Z The present paper has been written on the base of petrographical, geochemical, and mineralogical study of massive sulfide ores and their host rocks from the Panarechenskaya tectonic-volcanic structure in the central part of the Imandra-Varzuga belt. The massive sulfide deposit is situated in the northern part of the western caldera of the Panarechenskaya structure in medium-acid volcanics of the Samingskaya unit. Massive sulfide ore forms lens bodies 0.1–4 m thick, and have been traced with drillholes for 100 m. Lenses of massive sulfides are accompanied by zones of intense sulfide dissemination up the cross section. Host rocks are intensively altered, the main alteration processes are carbonatization and silicification. Silicification is accompanied by re-deposition of ore minerals in quartz and quartz-carbonate veinlets. The main ore mineral is pyrite, minor sulfides are chalcopyrite, pirrhotite, marcasite, arsenopyrite, galena, sphalerite, and some other sulfides, as well as rarely tellurides of Pb, Ag, Bi, Au, and native gold (electrum). Precious metal mineralization is noted mainly in zones of disseminated sulfides near massive sulfide lenses. Au content in the ores is 0.25–0.35 ppm, Ag content is 1.75–2.25 ppm, Au/Ag ratio varies within 1/6–1/7 interval. High geochemical background can serve as a source of precious metals for formation of gold deposits during later superimposed hydrothermal processes. Our investigations have shown that the Panarechenskaya structure, and, first of all, its western caldera, is the area promising for gold deposits, and exploration works should concentrate on searching for quartz-carbonate mineralized veins and zones of silicification. Представлены результаты петрографических, геохимических и минералогических исследований колчеданных руд и рудовмещающих пород Панареченской вулкано-тектонической структуры, расположенной в центральной части пояса Имандра – Варзуга. Проявление колчеданных руд располагается в северной части западной кальдеры Панареченской структуры в ... Book kola peninsula IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Kola Peninsula Imandra ENVELOPE(33.260,33.260,67.849,67.849) Varzuga ENVELOPE(36.942,36.942,66.268,66.268) Vestnik MGTU 21 1 26 36 |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
Russian |
topic |
Вулкано-тектоническая структура Колчеданные руды Метасоматиты Золото Теллуриды Tectonic-volcanic structure Massive sulfide ores Metasomatites Gold Tellurides |
spellingShingle |
Вулкано-тектоническая структура Колчеданные руды Метасоматиты Золото Теллуриды Tectonic-volcanic structure Massive sulfide ores Metasomatites Gold Tellurides Kalinin, A. A. Chernyavsky, A. V. Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) |
topic_facet |
Вулкано-тектоническая структура Колчеданные руды Метасоматиты Золото Теллуриды Tectonic-volcanic structure Massive sulfide ores Metasomatites Gold Tellurides |
description |
The present paper has been written on the base of petrographical, geochemical, and mineralogical study of massive sulfide ores and their host rocks from the Panarechenskaya tectonic-volcanic structure in the central part of the Imandra-Varzuga belt. The massive sulfide deposit is situated in the northern part of the western caldera of the Panarechenskaya structure in medium-acid volcanics of the Samingskaya unit. Massive sulfide ore forms lens bodies 0.1–4 m thick, and have been traced with drillholes for 100 m. Lenses of massive sulfides are accompanied by zones of intense sulfide dissemination up the cross section. Host rocks are intensively altered, the main alteration processes are carbonatization and silicification. Silicification is accompanied by re-deposition of ore minerals in quartz and quartz-carbonate veinlets. The main ore mineral is pyrite, minor sulfides are chalcopyrite, pirrhotite, marcasite, arsenopyrite, galena, sphalerite, and some other sulfides, as well as rarely tellurides of Pb, Ag, Bi, Au, and native gold (electrum). Precious metal mineralization is noted mainly in zones of disseminated sulfides near massive sulfide lenses. Au content in the ores is 0.25–0.35 ppm, Ag content is 1.75–2.25 ppm, Au/Ag ratio varies within 1/6–1/7 interval. High geochemical background can serve as a source of precious metals for formation of gold deposits during later superimposed hydrothermal processes. Our investigations have shown that the Panarechenskaya structure, and, first of all, its western caldera, is the area promising for gold deposits, and exploration works should concentrate on searching for quartz-carbonate mineralized veins and zones of silicification. Представлены результаты петрографических, геохимических и минералогических исследований колчеданных руд и рудовмещающих пород Панареченской вулкано-тектонической структуры, расположенной в центральной части пояса Имандра – Варзуга. Проявление колчеданных руд располагается в северной части западной кальдеры Панареченской структуры в ... |
format |
Book |
author |
Kalinin, A. A. Chernyavsky, A. V. |
author_facet |
Kalinin, A. A. Chernyavsky, A. V. |
author_sort |
Kalinin, A. A. |
title |
Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) |
title_short |
Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) |
title_full |
Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) |
title_fullStr |
Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) |
title_full_unstemmed |
Alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the Panarechenskaya structure (the Kola Peninsula) |
title_sort |
alteration of rocks, massive sulfide ores and perspectives for gold mineralization of the panarechenskaya structure (the kola peninsula) |
publishDate |
2018 |
url |
http://hdl.handle.net/1834/17290 https://doi.org/10.21443/1560-9278-2018-21-1-26-36 |
long_lat |
ENVELOPE(33.260,33.260,67.849,67.849) ENVELOPE(36.942,36.942,66.268,66.268) |
geographic |
Kola Peninsula Imandra Varzuga |
geographic_facet |
Kola Peninsula Imandra Varzuga |
genre |
kola peninsula |
genre_facet |
kola peninsula |
op_relation |
http://vestnik.mstu.edu.ru/show-eng.shtml?art=1926 1560-9278 doi:10.21443/1560-9278-2018-21-1-26-36 http://hdl.handle.net/1834/17290 |
op_doi |
https://doi.org/10.21443/1560-9278-2018-21-1-26-36 |
container_title |
Vestnik MGTU |
container_volume |
21 |
container_issue |
1 |
container_start_page |
26 |
op_container_end_page |
36 |
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1766059429593088000 |