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Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica)
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| Zeitschriftentitel: | Annals of Glaciology |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Annals of Glaciology, 7, 1985, S. 70-75 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
International Glaciological Society
|
| Schlagwörter: |
| author_facet |
Zanolini, Françoise Delmas, Robert J. Legrand, Michel Zanolini, Françoise Delmas, Robert J. Legrand, Michel |
|---|---|
| author |
Zanolini, Françoise Delmas, Robert J. Legrand, Michel |
| spellingShingle |
Zanolini, Françoise Delmas, Robert J. Legrand, Michel Annals of Glaciology Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) Earth-Surface Processes |
| author_sort |
zanolini, françoise |
| spelling |
Zanolini, Françoise Delmas, Robert J. Legrand, Michel 0260-3055 1727-5644 International Glaciological Society Earth-Surface Processes http://dx.doi.org/10.3189/s0260305500005930 <jats:p>D 57 station in Terre Adélie lies between the coast and the central Antarctic plateau. A 200 m ice core was recovered in summer 1980–81 at this location and analyzed by an electroconductometric method to detect exceptional acid levels linked to fallout from major volcanic eruptions. Several signals were indeed found. The corresponding ice-core sections were then analyzed for mineral acids (H<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub> and HNO<jats:sub>3</jats:sub>). We detected several large volcanic events, in particular two eruptions identified as Tarabora (1815) and Galunggung (1822). The background concentration of sulphate was found to be relatively low (about 0.5 μeq 1<jats:sup>−1</jats:sup>). On the other hand nitrate values were higher than at coastal or central Antarctic locations (except for the Sauth Pole). Two spikes were found in the nitrate profile at depths of 140 and 148 m. It is thought that they could be either linked to the 1604 and 1572 supernovae Kepler and Tycho or correspond to epochs of particularly high solar activities. With the aid of these sulphate and nitrate exceptional events, a dating of the D 57 ice core can now be proposed which corresponds to a mean snow accumulation rate of 22 cm of ice equivalent per year over the last four centuries.</jats:p> Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) Annals of Glaciology |
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International Glaciological Society, 1985 |
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International Glaciological Society, 1985 |
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0260-3055 1727-5644 |
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1985 |
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| title |
Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_unstemmed |
Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_full |
Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_fullStr |
Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_full_unstemmed |
Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_short |
Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_sort |
sulphuric and nitric acid concentrations and spikes along a 200 m deep ice core at d 57 (terre adélie, antarctica) |
| topic |
Earth-Surface Processes |
| url |
http://dx.doi.org/10.3189/s0260305500005930 |
| publishDate |
1985 |
| physical |
70-75 |
| description |
<jats:p>D 57 station in Terre Adélie lies between the coast and the central Antarctic plateau. A 200 m ice core was recovered in summer 1980–81 at this location and analyzed by an electroconductometric method to detect exceptional acid levels linked to fallout from major volcanic eruptions. Several signals were indeed found. The corresponding ice-core sections were then analyzed for mineral acids (H<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub> and HNO<jats:sub>3</jats:sub>). We detected several large volcanic events, in particular two eruptions identified as Tarabora (1815) and Galunggung (1822). The background concentration of sulphate was found to be relatively low (about 0.5 μeq 1<jats:sup>−1</jats:sup>). On the other hand nitrate values were higher than at coastal or central Antarctic locations (except for the Sauth Pole). Two spikes were found in the nitrate profile at depths of 140 and 148 m. It is thought that they could be either linked to the 1604 and 1572 supernovae Kepler and Tycho or correspond to epochs of particularly high solar activities. With the aid of these sulphate and nitrate exceptional events, a dating of the D 57 ice core can now be proposed which corresponds to a mean snow accumulation rate of 22 cm of ice equivalent per year over the last four centuries.</jats:p> |
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| author | Zanolini, Françoise, Delmas, Robert J., Legrand, Michel |
| author_facet | Zanolini, Françoise, Delmas, Robert J., Legrand, Michel, Zanolini, Françoise, Delmas, Robert J., Legrand, Michel |
| author_sort | zanolini, françoise |
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| description | <jats:p>D 57 station in Terre Adélie lies between the coast and the central Antarctic plateau. A 200 m ice core was recovered in summer 1980–81 at this location and analyzed by an electroconductometric method to detect exceptional acid levels linked to fallout from major volcanic eruptions. Several signals were indeed found. The corresponding ice-core sections were then analyzed for mineral acids (H<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub> and HNO<jats:sub>3</jats:sub>). We detected several large volcanic events, in particular two eruptions identified as Tarabora (1815) and Galunggung (1822). The background concentration of sulphate was found to be relatively low (about 0.5 μeq 1<jats:sup>−1</jats:sup>). On the other hand nitrate values were higher than at coastal or central Antarctic locations (except for the Sauth Pole). Two spikes were found in the nitrate profile at depths of 140 and 148 m. It is thought that they could be either linked to the 1604 and 1572 supernovae Kepler and Tycho or correspond to epochs of particularly high solar activities. With the aid of these sulphate and nitrate exceptional events, a dating of the D 57 ice core can now be proposed which corresponds to a mean snow accumulation rate of 22 cm of ice equivalent per year over the last four centuries.</jats:p> |
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| series | Annals of Glaciology |
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| spelling | Zanolini, Françoise Delmas, Robert J. Legrand, Michel 0260-3055 1727-5644 International Glaciological Society Earth-Surface Processes http://dx.doi.org/10.3189/s0260305500005930 <jats:p>D 57 station in Terre Adélie lies between the coast and the central Antarctic plateau. A 200 m ice core was recovered in summer 1980–81 at this location and analyzed by an electroconductometric method to detect exceptional acid levels linked to fallout from major volcanic eruptions. Several signals were indeed found. The corresponding ice-core sections were then analyzed for mineral acids (H<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub> and HNO<jats:sub>3</jats:sub>). We detected several large volcanic events, in particular two eruptions identified as Tarabora (1815) and Galunggung (1822). The background concentration of sulphate was found to be relatively low (about 0.5 μeq 1<jats:sup>−1</jats:sup>). On the other hand nitrate values were higher than at coastal or central Antarctic locations (except for the Sauth Pole). Two spikes were found in the nitrate profile at depths of 140 and 148 m. It is thought that they could be either linked to the 1604 and 1572 supernovae Kepler and Tycho or correspond to epochs of particularly high solar activities. With the aid of these sulphate and nitrate exceptional events, a dating of the D 57 ice core can now be proposed which corresponds to a mean snow accumulation rate of 22 cm of ice equivalent per year over the last four centuries.</jats:p> Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) Annals of Glaciology |
| spellingShingle | Zanolini, Françoise, Delmas, Robert J., Legrand, Michel, Annals of Glaciology, Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica), Earth-Surface Processes |
| title | Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_full | Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_fullStr | Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_full_unstemmed | Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_short | Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| title_sort | sulphuric and nitric acid concentrations and spikes along a 200 m deep ice core at d 57 (terre adélie, antarctica) |
| title_unstemmed | Sulphuric and Nitric Acid Concentrations and Spikes Along A 200 m Deep Ice Core at D 57 (Terre Adélie, Antarctica) |
| topic | Earth-Surface Processes |
| url | http://dx.doi.org/10.3189/s0260305500005930 |