CA-TIMS results show Pulses in silicic arc magmatism that initiate end-Permian climate instability and extinction

Creator(s):
Chapman, Timothy; ORCID: 0000-0002-4821-6420
Milan, Luke
Metcalfe, Ian
Blevin, Phil
Crowley, Jim
Abstract:
The dataset includes zircon crystallisation ages on volcanic and plutonic rocks in the New England region of eastern Australia. The high-fidelity, CA-TIMS U–Pb zircon record an end-Permian flare-up event, that involved the eruption of >39,000–150,000 km3 of silicic magma in c. 4.21 million years. A correlated high-resolution tephra record (c. 260–249 Ma) in the proximal sedimentary basins suggests recurrence of these eruptions in intervals of ~51,000–145,000 years. Peak eruption activity at 253 Ma is chronologically associated with intervals of pronounced species decline and the demise of the Glossopteris forests in the initial stages of the end-Permian mass extinction event.
How to cite this dataset:
Chapman, T., Milan, L., Metcalfe, I., Blevin, P., Crowley, J., 2022. CA-TIMS results show Pulses in silicic arc magmatism that initiate end-Permian climate instability and extinction, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). https://doi.org/10.26022/IEDA/112231. Accessed 2024-04-23.
DOI Creation Date:
2022-03-07
Related
Publication(s):
Chapman, T., Milan, L., Metcalfe, I., Blevin, P., Crowley, J. (in press) Pulses in silicic arc magmatism initiate end-Permian climate instability and extinction. Nature Geoscience
License:
Creative Commons Attribution-ShareAlike 4.0 International [CC-BY-SA-4.0]
Keyword(s):
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Australia
User Contributed Keyword(s):
CA-TIMS, flare-up cycles, volcanic aerosols
Data Available On:
2022-03-08
Resource Type:
Dataset
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File Name
File Size
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2231-1_ECL_Chapman_et_al_LA-ICP-MS-zircon.xls
3.99 MB
2231-2_ECL_Chapman_et_al_CA-TIMS-zircon.xls
783.5 KB
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