@article{732bb10575ff43a3b216b2cc76ab2822,
title = "Mercury isotope evidence for protracted North Atlantic magmatism during the Paleocene-Eocene Thermal Maximum",
abstract = "The Paleocene-Eocene Thermal Maximum (PETM, ∼56 Ma) was a major hyperthermal event that has been linked to CO2 release from the North Atlantic Igneous Province (NAIP). Anomalously high sedimentary mercury (Hg) concentrations, a proxy for volcanism, have been recorded across the PETM, but the precise mechanistic links between NAIP emplacement and the event are unclear. Here, we present Hg abundance and Hg-isotope data across a thick, deep-marine sedimentary record deposited in close proximity to active NAIP volcanism. A marked transient shift of Δ199Hg towards higher values occurs within the PETM onset, indicating a causal link to extrusive volcanic activity from the NAIP. Increasing Δ199Hg values through the body of the PETM indicate a protracted interval of magmatism. Towards the end of, and after, the PETM the data suggest an overall waning influence of direct volcanogenic Hg outgassing. Our data can explain both the triggering mechanism and long duration of the PETM.",
keywords = "basaltic volcanism, large igneous province, mercury, mercury isotopes, North Atlantic Igneous Province, PETM",
author = "Simin Jin and Kemp, {David B.} and Runsheng Yin and Ruiyang Sun and Jun Shen and Jolley, {David W.} and Manuel Vieira and Chunju Huang",
note = "Funding Information: We thank the two anonymous reviewers for their valuable suggestions that helped us to improve the quality of this paper. This work was supported by the National Natural Science Foundation of China (Grant No. 41888101 , 42230208 , 42172039 ), National Recruitment Program for Young Professionals (P.R. China) to DBK and the National Key R&D Program of China ( 2022YFF0802900 ). We thank Shell UK and partners for their support and permission to publish this research. We also thank Di Chen for assistance with laboratory work. This work is a contribution to IGCP739. Funding Information: We thank the two anonymous reviewers for their valuable suggestions that helped us to improve the quality of this paper. This work was supported by the National Natural Science Foundation of China (Grant No. 41888101, 42230208, 42172039), National Recruitment Program for Young Professionals (P.R. China) to DBK and the National Key R&D Program of China (2022YFF0802900). We thank Shell UK and partners for their support and permission to publish this research. We also thank Di Chen for assistance with laboratory work. This work is a contribution to IGCP739. Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",
year = "2023",
month = jan,
day = "15",
doi = "10.1016/j.epsl.2022.117926",
language = "English",
volume = "602",
journal = "Earth And Planetary Science Letters",
issn = "0012-821X",
publisher = "Elsevier Science B.V., Amsterdam.",
}
