التفاصيل البيبلوغرافية
| العنوان: |
Volcanic ash leaching as a means of tracing the environmental impact of the 2011 Grímsvötn eruption, Iceland |
| المؤلفون: |
Cabre, J. M., Aulinas Juncà, Meritxell, Rejas Alejos, Marta, Fernández Turiel, José Luis |
| المصدر: |
Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) |
| بيانات النشر: |
Springer Verlag |
| سنة النشر: |
2016 |
| المجموعة: |
Dipòsit Digital de la Universitat de Barcelona |
| مصطلحات موضوعية: |
Volcans, Cendres volcàniques, Avaluació d'impacte ambiental, Islàndia, Volcanoes, Volcanic ash, Environmental impact analysis, Iceland |
| الوصف: |
The Grímsvötn volcanic eruption, from 21 to 28 May, 2011, was the largest eruption of the Grímsvötn Volcanic System since 1873, with a Volcanic Explosivity Index (VEI) of magnitude 4. The main geochemical features of the potential environmental impact of the volcanic ash-water interaction were determined using two different leaching methods as proxies (batch and vertical flow-through column experiments). Ash consists of glass with minor amounts of plagioclase, clinopyroxene, diopside, olivine and iron sulphide; this latter mineral phase is very rare in juvenile ash. Ash grain morphology and size reflect the intense interaction of magma and water during eruption. Batch and column leaching tests in deionised water indicate that Na, K, Ca, Mg, Si, Cl, S and F had the highest potential geochemical fluxes to the environment. Release of various elements from volcanic ash took place immediately through dissolution of soluble salts from the ash surface. Element solubilities of Grímsvötn ash regarding bulk ash composition were <1 %. Combining the element solubilities and the total estimated mass of tephra (7.29 × 1014 g), the total inputs of environmentally important elements were estimated to be 8.91 × 109 g Ca, 7.02 × 109 g S, 1.10 × 109 g Cl, 9.91 × 108 g Mg, 9.91 × 108 g Fe and 1.45 × 108 g P The potential environmental problems were mainly associated with the release of F (5.19 × 109 g). |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
38 p.; application/pdf |
| اللغة: |
English |
| تدمد: |
0944-1344 |
| Relation: |
Versió postprint del document publicat a: https://doi.org/10.1007/s11356-016-6559-7; Environmental Science and Pollution Research, 2016, vol. 23, num. 14, p. 14338-14353; https://doi.org/10.1007/s11356-016-6559-7; http://hdl.handle.net/2445/127758; 660261 |
| الاتاحة: |
http://hdl.handle.net/2445/127758 |
| Rights: |
(c) Springer Verlag, 2016 ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edsbas.6FA7D5EC |
| قاعدة البيانات: |
BASE |
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