Stable isotopes and element concentrations of samples from the Wadi Bih, United Arab Emirates
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| Main Authors: | , , , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2015
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| _version_ | 1867167672775475200 |
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| author | Clarkson, Matthew O Kasemann, Simone A Wood, Richard A Lenton, Timothy M Daines, S J Richoz, Isabelle Ohnemueller, Frank Meixner, Anette Poulton, Simon W Tipper, Edward T |
| author_facet | Clarkson, Matthew O Kasemann, Simone A Wood, Richard A Lenton, Timothy M Daines, S J Richoz, Isabelle Ohnemueller, Frank Meixner, Anette Poulton, Simon W Tipper, Edward T |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean acidification triggered by Siberian Trap volcanism was a possible kill mechanism for the Permo-Triassic Boundary mass extinction, but direct evidence for an acidification event is lacking. We present a high-resolution seawater pH record across this interval, using boron isotope data combined with a quantitative modeling approach. In the latest Permian, increased ocean alkalinity primed the Earth system with a low level of atmospheric CO2 and a high ocean buffering capacity. The first phase of extinction was coincident with a slow injection of carbon into the atmosphere, and ocean pH remained stable. During the second extinction pulse, however, a rapid and large injection of carbon caused an abrupt acidification event that drove the preferential loss of heavily calcified marine biota. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_845828 |
| institution | PANGAEA |
| language | en |
| publishDate | 2015 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Stable isotopes and element concentrations of samples from the Wadi Bih, United Arab Emirates Clarkson, Matthew O Kasemann, Simone A Wood, Richard A Lenton, Timothy M Daines, S J Richoz, Isabelle Ohnemueller, Frank Meixner, Anette Poulton, Simon W Tipper, Edward T Ocean acidification triggered by Siberian Trap volcanism was a possible kill mechanism for the Permo-Triassic Boundary mass extinction, but direct evidence for an acidification event is lacking. We present a high-resolution seawater pH record across this interval, using boron isotope data combined with a quantitative modeling approach. In the latest Permian, increased ocean alkalinity primed the Earth system with a low level of atmospheric CO2 and a high ocean buffering capacity. The first phase of extinction was coincident with a slow injection of carbon into the atmosphere, and ocean pH remained stable. During the second extinction pulse, however, a rapid and large injection of carbon caused an abrupt acidification event that drove the preferential loss of heavily calcified marine biota. |
| title | Stable isotopes and element concentrations of samples from the Wadi Bih, United Arab Emirates |
| topic | |
| url | https://doi.org/10.1594/PANGAEA.845828 |