<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A geochronological and mineralogical study on the seafloor massive sulfides from the Pobeda hydrothermal cluster at the Mid-Atlantic Ridge was carried out. To improve the reliability of geochronological data, the 230Th/U ages were measured for both the bulk samples and monomineral separates. The oldest age ca. 52 kyr within Pobeda-1 and ca. 107 kyr within Pobeda–2 fields have been obtained. Then, several episodes of hydrothermal activity were identified within both fields up to ca. 0.3 kyr ago and up to ca. 4.3 kyr ago, respectively.</p></abstract>

A geochronological and mineralogical study on the seafloor massive sulfides from the Pobeda hydrothermal cluster at the Mid-Atlantic Ridge was carried out. To improve the reliability of geochronological data, the 230Th/U ages were measured for both the bulk samples and monomineral separates. The oldest age ca. 52 kyr within Pobeda-1 and ca. 107 kyr within Pobeda–2 fields have been obtained. Then, several episodes of hydrothermal activity were identified within both fields up to ca. 0.3 kyr ago and up to ca. 4.3 kyr ago, respectively.

Chronology of seafloor massive sulfides formation within the Pobeda hydrothermal cluster (Mid-Atlantic Ridge)

Geochronometria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A geochronological and mineralogical study on the seafloor massive sulfides from the Pobeda hydrothermal cluster at the Mid-Atlantic Ridge was carried out. To...

Chronology of seafloor massive sulfides formation within the Pobeda hydrothermal cluster (Mid-Atlantic Ridge)

Article Category: Regular Articles

Published Online: Dec 31, 2020

Page range: 63 - 70

Received: Dec 27, 2019

Accepted: Aug 28, 2020

DOI: https://doi.org/10.2478/geochr-2020-0019

Keywords
geochronology, hydrothermal activity, 230Th/U dating, seafloor massive sulfides

© 2020 V. Kuznetsov., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Chronology of seafloor massive sulfides formation within the Pobeda hydrothermal cluster (Mid-Atlantic Ridge)

Article Category: Regular Articles

Published Online: Dec 31, 2020

Page range: 63 - 70

Received: Dec 27, 2019

Accepted: Aug 28, 2020

DOI: https://doi.org/10.2478/geochr-2020-0019

Keywordsgeochronology, hydrothermal activity, 230Th/U dating, seafloor massive sulfides

© 2020 V. Kuznetsov., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
geochronology, hydrothermal activity, 230Th/U dating, seafloor massive sulfides