Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge
This article discusses the results of a fluid inclusion studies in barite collected at the Jan Mayen vent field area (Troll Wall and Perle and Bruse) and Loki’s Castle vent field on the Mohns Ridge segment of the Arctic Mid-Ocean Ridge. Three mafic-hosted volcanogenic massive sulfide deposits were e...
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2023
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ftmdpi:oai:mdpi.com:/2075-163X/13/9/1117/ 2023-09-26T15:14:37+02:00 Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge Marina D. Kravchishina Vsevolod Yu. Prokofiev Olga M. Dara Boris V. Baranov Alexey A. Klyuvitkin Karina S. Iakimova Vladislav Yu. Kalgin Alla Yu. Lein agris 2023-08-24 application/pdf https://doi.org/10.3390/min13091117 EN eng Multidisciplinary Digital Publishing Institute Crystallography and Physical Chemistry of Minerals & Nanominerals https://dx.doi.org/10.3390/min13091117 https://creativecommons.org/licenses/by/4.0/ Minerals; Volume 13; Issue 9; Pages: 1117 barite fluid inclusion hydrothermal vent field hydrothermal fluid mineralization volcanogenic massive sulfide deposits ultraslow-spreading ridge Mohns Ridge Arctic Mid-Ocean Ridge Text 2023 ftmdpi https://doi.org/10.3390/min13091117 2023-08-27T23:53:25Z This article discusses the results of a fluid inclusion studies in barite collected at the Jan Mayen vent field area (Troll Wall and Perle and Bruse) and Loki’s Castle vent field on the Mohns Ridge segment of the Arctic Mid-Ocean Ridge. Three mafic-hosted volcanogenic massive sulfide deposits were examined within the active vent fields that adequately correspond to the geological settings of ultraslow-spreading ridges and P–T conditions. Hydrothermal sediments were investigated to determine the temperature and salinity of the fluids responsible for barite precipitation. The hydrothermal origin of the barite was confirmed by its morphology. Fluid inclusions are two-phase and homogenize into the liquid phase on heating at temperatures below 287 °C. The salt concentration in fluids trapped in inclusions is 2.6–4.4 wt.% NaCl eq. The crystallization temperatures varied from 276 °C to 119 °C and from 307 °C to 223 °C for the Jan Mayen and Loki’s Castle vent fields, respectively. The data obtained allowed us to confirm evidence of fluid phase separation in the hydrothermal systems and to expand our knowledge of the temperature and salinity of mineral fluids previously known from recent direct measurements during the cruises within the G.O. Sars research vessel. The fluid inclusions data obtained from barites emphasize the fluid features characteristic of volcanogenic massive sulfide deposits, the similarities and differences among the studied hydrothermal sites and allow comparisons with similar products from other active hydrothermal systems. Text Arctic Jan Mayen MDPI Open Access Publishing Arctic Jan Mayen Troll ENVELOPE(13.895,13.895,67.110,67.110) Minerals 13 9 1117 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
barite fluid inclusion hydrothermal vent field hydrothermal fluid mineralization volcanogenic massive sulfide deposits ultraslow-spreading ridge Mohns Ridge Arctic Mid-Ocean Ridge |
spellingShingle |
barite fluid inclusion hydrothermal vent field hydrothermal fluid mineralization volcanogenic massive sulfide deposits ultraslow-spreading ridge Mohns Ridge Arctic Mid-Ocean Ridge Marina D. Kravchishina Vsevolod Yu. Prokofiev Olga M. Dara Boris V. Baranov Alexey A. Klyuvitkin Karina S. Iakimova Vladislav Yu. Kalgin Alla Yu. Lein Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge |
topic_facet |
barite fluid inclusion hydrothermal vent field hydrothermal fluid mineralization volcanogenic massive sulfide deposits ultraslow-spreading ridge Mohns Ridge Arctic Mid-Ocean Ridge |
description |
This article discusses the results of a fluid inclusion studies in barite collected at the Jan Mayen vent field area (Troll Wall and Perle and Bruse) and Loki’s Castle vent field on the Mohns Ridge segment of the Arctic Mid-Ocean Ridge. Three mafic-hosted volcanogenic massive sulfide deposits were examined within the active vent fields that adequately correspond to the geological settings of ultraslow-spreading ridges and P–T conditions. Hydrothermal sediments were investigated to determine the temperature and salinity of the fluids responsible for barite precipitation. The hydrothermal origin of the barite was confirmed by its morphology. Fluid inclusions are two-phase and homogenize into the liquid phase on heating at temperatures below 287 °C. The salt concentration in fluids trapped in inclusions is 2.6–4.4 wt.% NaCl eq. The crystallization temperatures varied from 276 °C to 119 °C and from 307 °C to 223 °C for the Jan Mayen and Loki’s Castle vent fields, respectively. The data obtained allowed us to confirm evidence of fluid phase separation in the hydrothermal systems and to expand our knowledge of the temperature and salinity of mineral fluids previously known from recent direct measurements during the cruises within the G.O. Sars research vessel. The fluid inclusions data obtained from barites emphasize the fluid features characteristic of volcanogenic massive sulfide deposits, the similarities and differences among the studied hydrothermal sites and allow comparisons with similar products from other active hydrothermal systems. |
format |
Text |
author |
Marina D. Kravchishina Vsevolod Yu. Prokofiev Olga M. Dara Boris V. Baranov Alexey A. Klyuvitkin Karina S. Iakimova Vladislav Yu. Kalgin Alla Yu. Lein |
author_facet |
Marina D. Kravchishina Vsevolod Yu. Prokofiev Olga M. Dara Boris V. Baranov Alexey A. Klyuvitkin Karina S. Iakimova Vladislav Yu. Kalgin Alla Yu. Lein |
author_sort |
Marina D. Kravchishina |
title |
Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge |
title_short |
Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge |
title_full |
Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge |
title_fullStr |
Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge |
title_full_unstemmed |
Fluid Inclusion Studies of Barite Disseminated in Hydrothermal Sediments of the Mohns Ridge |
title_sort |
fluid inclusion studies of barite disseminated in hydrothermal sediments of the mohns ridge |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/min13091117 |
op_coverage |
agris |
long_lat |
ENVELOPE(13.895,13.895,67.110,67.110) |
geographic |
Arctic Jan Mayen Troll |
geographic_facet |
Arctic Jan Mayen Troll |
genre |
Arctic Jan Mayen |
genre_facet |
Arctic Jan Mayen |
op_source |
Minerals; Volume 13; Issue 9; Pages: 1117 |
op_relation |
Crystallography and Physical Chemistry of Minerals & Nanominerals https://dx.doi.org/10.3390/min13091117 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/min13091117 |
container_title |
Minerals |
container_volume |
13 |
container_issue |
9 |
container_start_page |
1117 |
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1778135457960296448 |