Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits

Mesozoic gabbro from the Stanovoy convergent margin and adakitic dacite lava from the Pliocene–Quaternary Bakening volcano in Kamchatka contain iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions along with abundant isolated iron–titanium minerals, sulfides and halides of base and p...

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Published in:Minerals
Main Authors: Pavel Kepezhinskas, Nikolai Berdnikov, Valeria Krutikova, Nadezhda Kozhemyako
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2024
Subjects:
Online Access:https://doi.org/10.3390/min14020188
https://doaj.org/article/af66ec6997184a9398f2ded69ece904c
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author Pavel Kepezhinskas
Nikolai Berdnikov
Valeria Krutikova
Nadezhda Kozhemyako
author_facet Pavel Kepezhinskas
Nikolai Berdnikov
Valeria Krutikova
Nadezhda Kozhemyako
author_sort Pavel Kepezhinskas
collection Directory of Open Access Journals: DOAJ Articles
container_issue 2
container_start_page 188
container_title Minerals
container_volume 14
description Mesozoic gabbro from the Stanovoy convergent margin and adakitic dacite lava from the Pliocene–Quaternary Bakening volcano in Kamchatka contain iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions along with abundant isolated iron–titanium minerals, sulfides and halides of base and precious metals. Iron–titanium minerals include magnetite, ilmenite and rutile; sulfides include chalcopyrite, pyrite and pyrrhotite; sulfates are represented by barite; and halides are predominantly composed of copper and silver chlorides. Apatite in both gabbro and adakitic dacite frequently contains elevated chlorine concentrations (up to 1.7 wt.%). Mineral thermobarometry suggests that the ITOASS microinclusions and associated Fe-Ti minerals and sulfides crystallized from subduction-related metal-rich melts in mid-crustal magmatic conduits at depths of 10 to 20 km below the surface under almost neutral redox conditions (from the unit below to the unit above the QFM buffer). The ITOASS microinclusions in gabbro and adakite from the Russian Far East provide possible magmatic links to iron oxide–apatite (IOA) and iron oxide–copper–gold (IOCG) deposits and offer valuable insights into the early magmatic (pre-metasomatic) evolution of the IOA and ICOG mineralized systems in paleo-subduction- and collision-related geodynamic environments.
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spelling ftdoajarticles:oai:doaj.org/article:af66ec6997184a9398f2ded69ece904c 2025-01-16T22:48:43+00:00 Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits Pavel Kepezhinskas Nikolai Berdnikov Valeria Krutikova Nadezhda Kozhemyako 2024-02-01T00:00:00Z https://doi.org/10.3390/min14020188 https://doaj.org/article/af66ec6997184a9398f2ded69ece904c EN eng MDPI AG https://www.mdpi.com/2075-163X/14/2/188 https://doaj.org/toc/2075-163X doi:10.3390/min14020188 https://doaj.org/article/af66ec6997184a9398f2ded69ece904c Minerals, Vol 14, Iss 2, p 188 (2024) Stanovoy convergent zone Kamchatka arc gabbro adakite iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions magmatic crystallization Mineralogy QE351-399.2 article 2024 ftdoajarticles https://doi.org/10.3390/min14020188 2024-10-09T17:27:38Z Mesozoic gabbro from the Stanovoy convergent margin and adakitic dacite lava from the Pliocene–Quaternary Bakening volcano in Kamchatka contain iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions along with abundant isolated iron–titanium minerals, sulfides and halides of base and precious metals. Iron–titanium minerals include magnetite, ilmenite and rutile; sulfides include chalcopyrite, pyrite and pyrrhotite; sulfates are represented by barite; and halides are predominantly composed of copper and silver chlorides. Apatite in both gabbro and adakitic dacite frequently contains elevated chlorine concentrations (up to 1.7 wt.%). Mineral thermobarometry suggests that the ITOASS microinclusions and associated Fe-Ti minerals and sulfides crystallized from subduction-related metal-rich melts in mid-crustal magmatic conduits at depths of 10 to 20 km below the surface under almost neutral redox conditions (from the unit below to the unit above the QFM buffer). The ITOASS microinclusions in gabbro and adakite from the Russian Far East provide possible magmatic links to iron oxide–apatite (IOA) and iron oxide–copper–gold (IOCG) deposits and offer valuable insights into the early magmatic (pre-metasomatic) evolution of the IOA and ICOG mineralized systems in paleo-subduction- and collision-related geodynamic environments. Article in Journal/Newspaper Kamchatka Directory of Open Access Journals: DOAJ Articles Stanovoy ENVELOPE(42.810,42.810,65.583,65.583) Minerals 14 2 188
spellingShingle Stanovoy convergent zone
Kamchatka arc
gabbro
adakite
iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions
magmatic crystallization
Mineralogy
QE351-399.2
Pavel Kepezhinskas
Nikolai Berdnikov
Valeria Krutikova
Nadezhda Kozhemyako
Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits
title Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits
title_full Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits
title_fullStr Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits
title_full_unstemmed Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits
title_short Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits
title_sort iron–titanium oxide–apatite–sulfide–sulfate microinclusions in gabbro and adakite from the russian far east indicate possible magmatic links to iron oxide–apatite and iron oxide–copper–gold deposits
topic Stanovoy convergent zone
Kamchatka arc
gabbro
adakite
iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions
magmatic crystallization
Mineralogy
QE351-399.2
topic_facet Stanovoy convergent zone
Kamchatka arc
gabbro
adakite
iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions
magmatic crystallization
Mineralogy
QE351-399.2
url https://doi.org/10.3390/min14020188
https://doaj.org/article/af66ec6997184a9398f2ded69ece904c