Hydrothermal ferromanganese oxides around a petit-spot volcano on old and cold oceanic crust

Areas of old and cold oceanic plate lack conventional volcanism and have been assumed to be devoid of submarine hydrothermal activity. However, petit-spot volcanoes are common in areas of flexure of such oceanic plates. Here, we report hydrothermal ferromanganese oxides dredged from the vicinity of...

Full description

Saved in:
Bibliographic Details
Published in:Communications earth & environment 2023-06, Vol.4 (1), p.191-11, Article 191
Main Authors: Azami, Keishiro, Machida, Shiki, Hirano, Naoto, Nakamura, Kentaro, Yasukawa, Kazutaka, Kogiso, Tetsu, Nakanishi, Masao, Kato, Yasuhiro
Format: Article
Language:English
Subjects:
Carbon cycle
Carbon dioxide
Dredging
Ferromanganese
Ferromanganese oxides
Iron
Low temperature
Manganese
Manganese oxides
Marine sediments
Mineralogy
Oceanic crust
Oxides
Plates (tectonics)
Sediments
Volcanic activity
Volcanoes
Water depth
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Areas of old and cold oceanic plate lack conventional volcanism and have been assumed to be devoid of submarine hydrothermal activity. However, petit-spot volcanoes are common in areas of flexure of such oceanic plates. Here, we report hydrothermal ferromanganese oxides dredged from the vicinity of a petit-spot volcano at 5.7 km water depth in an area of oceanic plate flexure east of the Japan Trench. The bulk chemical, lead isotopic and mineralogical compositions of the samples indicate their formation by low-temperature hydrothermal activity, which can be interpreted as being caused by fluid–rock interactions at
ISSN:2662-4435
2662-4435
DOI:10.1038/s43247-023-00832-3