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TL;DR: It is demonstrated that the great 1257 eruption of Samalas (Lombok, Indonesia) released enough sulphur and halogen gases into the stratosphere to produce the reported global cooling during the second half of the 13th century, as well as potential substantial ozone destruction.
Abstract: Large explosive eruptions inject volcanic gases and fine ash to stratospheric altitudes, contributing to global cooling at the Earth’s surface and occasionally to ozone depletion. The modelling of the climate response to these strong injections of volatiles commonly relies on ice-core records of volcanic sulphate aerosols. Here we use an independent geochemical approach which demonstrates that the great 1257 eruption of Samalas (Lombok, Indonesia) released enough sulphur and halogen gases into the stratosphere to produce the reported global cooling during the second half of the 13th century, as well as potential substantial ozone destruction. Major, trace and volatile element compositions of eruptive products recording the magmatic differentiation processes leading to the 1257 eruption indicate that Mt Samalas released 158 ± 12 Tg of sulphur dioxide, 227 ± 18 Tg of chlorine and a maximum of 1.3 ± 0.3 Tg of bromine. These emissions stand as the greatest volcanogenic gas injection of the Common Era. Our findings not only provide robust constraints for the modelling of the combined impact of sulphur and halogens on stratosphere chemistry of the largest eruption of the last millennium, but also develop a methodology to better quantify the degassing budgets of explosive eruptions of all magnitudes.
79 citations
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TL;DR: In the Schistes Lustres of Alpine Corsica (France), serpentinized mantle rocks are associated with continental basement and meta-volcanic/sedimentary cover rocks as mentioned in this paper.
79 citations
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TL;DR: In this paper, X-ray absorption fine structure (XAFS) spectroscopy at temperatures to 450 °C and pressures to 600 bars was used to characterize the local atomic structure around antimony in pure water and NaCl HCl aqueous solutions.
79 citations
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TL;DR: In this article, the authors have sampled close to two summits of Teahitia, a submarine volcano from the southern extension of the Society volcanic chain, and the temperatures measured within two vents were 30°C.
79 citations
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TL;DR: In this paper, the K/Ar Cassignol technique was used to date the Teide volcano in the Canary Islands, Spain, to a weighted mean age of 800±300 years.
Abstract: Less than one thousand years dating of the youngest volcanic episode of the Teide volcano (Canary Islands, Spain) has been performed using the K/Ar Cassignol technique. Analyses of about 20 g of pure alkali-feldspar yielded a weighted mean age of 800±300 years. Stratigraphic, historic and archeomagnetic dating validate this age and rule out the hypothesis of the presence of significant excess argon contamination for this flow. Our result shows that the last effusive activity of the Teide volcano took place shortly before European settlement in Tenerife Island. This study confirms that the Cassignol technique can be applied with success for historic dating and demonstrates that it can now even be extended to the last millennium.
78 citations
Authors
Showing all 903 results
Name | H-index | Papers | Citations |
---|---|---|---|
Claude J. Allègre | 106 | 327 | 35092 |
Paul Tapponnier | 99 | 294 | 42855 |
Francesco Mauri | 85 | 352 | 69332 |
Barbara Romanowicz | 67 | 284 | 14950 |
Geoffrey C. P. King | 64 | 157 | 17177 |
Yi-Gang Xu | 64 | 271 | 14292 |
Jérôme Gaillardet | 63 | 199 | 14878 |
François Guyot | 61 | 292 | 12444 |
Georges Calas | 60 | 266 | 10901 |
Ari P. Seitsonen | 59 | 212 | 45684 |
Michele Lazzeri | 58 | 140 | 57079 |
Bernard Bourdon | 58 | 118 | 9962 |
Gianreto Manatschal | 56 | 200 | 10063 |
Nikolai M. Shapiro | 56 | 154 | 15508 |
Guillaume Morin | 55 | 156 | 7218 |