Hadal aragonite records venting of stagnant paleoseawater in the hydrated forearc mantle

Veins of aragonite in deep ocean trenches can record discharges of CO2-rich paleoseawater and suggest that exposed serpentinized forearcs can act as carbon reservoirs, according to residence time calculations based on geochemical analyses of mantle rocks from offshore Japan.

Bibliographic Details
Main Authors: Ryosuke Oyanagi, Atsushi Okamoto, Madhusoodhan Satish-Kumar, Masayo Minami, Yumiko Harigane, Katsuyoshi Michibayashi
Format: Article
Language:English
Published: Nature Portfolio 2021-12-01
Series:Communications Earth & Environment
Online Access:https://doi.org/10.1038/s43247-021-00317-1