Helium, carbon and nitrogen isotope evidence for slab influence on volcanic gas emissions at Rabaul caldera, Papua New Guinea DOI Creative Commons
Brendan McCormick Kilbride, Peter H. Barry, Tobias P. Fischer

et al.

Chemical Geology, Journal Year: 2024, Volume and Issue: unknown, P. 122434 - 122434

Published: Oct. 1, 2024

Language: Английский

Eleven‐Year Survey of the Magmatic‐Hydrothermal Fluids From Peteroa Volcano: Identifying Precursory Signals of the 2018–2019 Eruption DOI Creative Commons
Mariano Agusto, María Clara Lamberti, Franco Tassi

et al.

Geochemistry Geophysics Geosystems, Journal Year: 2023, Volume and Issue: 24(11)

Published: Nov. 1, 2023

Abstract Over the past decade, we have conducted geochemical and isotopic monitoring of fumarolic gases Peteroa volcano (Argentina‐Chile). Using resulting data set, constructed a conceptual model that describes evolution magmatic‐hydrothermal system identifies precursory signals last eruption. Our set includes new chemical analyses gas samples collected from 2016 to 2021, as well previously published 2010–2015 period. After an eruptive period in 2010–2011, activity was characterized by low degassing rates seismic activity. However, increase emissions observed 2018–2019 episode, leading major phreato‐magmatic Fumarole show different compositions during quiescent versus unrest/eruptive related interaction deep (magmatic) shallow (hydrothermal) fluid contributions. During periods, fumaroles exhibited SO 2 /H S, HF/CO , HCl/CO ratios (<0.1), revealing dominant hydrothermal contribution. In contrast, pre‐and syn‐eruptive showed up 100 times higher indicative enhanced magmatic input. When compared activity, increment magmatic‐related strong acidic suggests repeated inputs hot fluids, which are only partially dissolved into feeding fumaroles. Interestingly, 3 He/ 4 He δ 13 C‐CO values remained relatively constant 2016–2021, suggesting source did not significantly change throughout variations Peteroa's

Language: Английский

Citations

1
Noble gas mass spectrometry DOI
Michael W. Broadley, David V. Bekaert

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 671 - 690

Published: Aug. 16, 2024

Language: Английский

Citations

0
Tracing the orogenic sulfur cycle in the Andes using stable isotope composition of dissolved sulfate in thermal springs DOI
Tyler A. Grambling, Dennis L. Newell, Karen G. Lloyd

et al.

Chemical Geology, Journal Year: 2024, Volume and Issue: 669, P. 122365 - 122365

Published: Aug. 30, 2024

Language: Английский

Citations

0
Forms and fluxes of carbon: Surface to deep DOI
Alberto Vitale Brovarone,

Kevin Wong,

Donato Giovannelli

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 647 - 698

Published: Sept. 10, 2024

Language: Английский

Citations

0
Helium, carbon and nitrogen isotope evidence for slab influence on volcanic gas emissions at Rabaul caldera, Papua New Guinea DOI Creative Commons
Brendan McCormick Kilbride, Peter H. Barry, Tobias P. Fischer

et al.

Chemical Geology, Journal Year: 2024, Volume and Issue: unknown, P. 122434 - 122434

Published: Oct. 1, 2024

Language: Английский

Citations

0