Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)

Abstract The Late Triassic Carnian Pluvial Episode (CPE) was a time of biological turnover and environmental perturbations. Within the CPE interval, C-isotope and sedimentary records indicate multiple pulses of depleted carbon into the atmosphere–ocean system linked to discrete enhancements of the h...

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Autores principales:	Mina Mazaheri-Johari, Piero Gianolla, Tamsin A. Mather, Joost Frieling, Daoliang Chu, Jacopo Dal Corso
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/05cdb197fc7144c0870a0bd544229024
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spelling	oai:doaj.org-article:05cdb197fc7144c0870a0bd5442290242021-12-02T15:25:34ZMercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)10.1038/s41598-021-96890-82045-2322https://doaj.org/article/05cdb197fc7144c0870a0bd5442290242021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96890-8https://doaj.org/toc/2045-2322Abstract The Late Triassic Carnian Pluvial Episode (CPE) was a time of biological turnover and environmental perturbations. Within the CPE interval, C-isotope and sedimentary records indicate multiple pulses of depleted carbon into the atmosphere–ocean system linked to discrete enhancements of the hydrological cycle. Data suggest a similar cascade of events to other extinctions, including being potentially driven by emplacement of a large igneous province (LIP). The age of the Wrangellia LIP overlaps that of the CPE, but a direct link between volcanism and the pulsed CPE remains elusive. We present sedimentary Hg concentrations from Western Tethys successions to investigate volcanic activity through the previously established CPE global negative C-isotope excursions (NCIEs). Higher Hg concentrations and Hg/TOC are recorded just before and during NCIEs and siliciclastic inputs. The depositional settings suggest volcanic Hg inputs into the basins over the NCIEs rather than increases of Hg drawdown or riverine transport. Differences in Hg and Hg/TOC signals between the basins might be linked to coeval LIP style or the temporal resolution of the sedimentary successions. Overall, our new data provide support for a link between pulses of Wrangellia LIP volcanism, NCIEs, and humid phases that mark the CPE in the Western Tethys.Mina Mazaheri-JohariPiero GianollaTamsin A. MatherJoost FrielingDaoliang ChuJacopo Dal CorsoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mina Mazaheri-Johari Piero Gianolla Tamsin A. Mather Joost Frieling Daoliang Chu Jacopo Dal Corso Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)
description	Abstract The Late Triassic Carnian Pluvial Episode (CPE) was a time of biological turnover and environmental perturbations. Within the CPE interval, C-isotope and sedimentary records indicate multiple pulses of depleted carbon into the atmosphere–ocean system linked to discrete enhancements of the hydrological cycle. Data suggest a similar cascade of events to other extinctions, including being potentially driven by emplacement of a large igneous province (LIP). The age of the Wrangellia LIP overlaps that of the CPE, but a direct link between volcanism and the pulsed CPE remains elusive. We present sedimentary Hg concentrations from Western Tethys successions to investigate volcanic activity through the previously established CPE global negative C-isotope excursions (NCIEs). Higher Hg concentrations and Hg/TOC are recorded just before and during NCIEs and siliciclastic inputs. The depositional settings suggest volcanic Hg inputs into the basins over the NCIEs rather than increases of Hg drawdown or riverine transport. Differences in Hg and Hg/TOC signals between the basins might be linked to coeval LIP style or the temporal resolution of the sedimentary successions. Overall, our new data provide support for a link between pulses of Wrangellia LIP volcanism, NCIEs, and humid phases that mark the CPE in the Western Tethys.
format	article
author	Mina Mazaheri-Johari Piero Gianolla Tamsin A. Mather Joost Frieling Daoliang Chu Jacopo Dal Corso
author_facet	Mina Mazaheri-Johari Piero Gianolla Tamsin A. Mather Joost Frieling Daoliang Chu Jacopo Dal Corso
author_sort	Mina Mazaheri-Johari
title	Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)
title_short	Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)
title_full	Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)
title_fullStr	Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)
title_full_unstemmed	Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)
title_sort	mercury deposition in western tethys during the carnian pluvial episode (late triassic)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/05cdb197fc7144c0870a0bd544229024
work_keys_str_mv	AT minamazaherijohari mercurydepositioninwesterntethysduringthecarnianpluvialepisodelatetriassic AT pierogianolla mercurydepositioninwesterntethysduringthecarnianpluvialepisodelatetriassic AT tamsinamather mercurydepositioninwesterntethysduringthecarnianpluvialepisodelatetriassic AT joostfrieling mercurydepositioninwesterntethysduringthecarnianpluvialepisodelatetriassic AT daoliangchu mercurydepositioninwesterntethysduringthecarnianpluvialepisodelatetriassic AT jacopodalcorso mercurydepositioninwesterntethysduringthecarnianpluvialepisodelatetriassic
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Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)

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