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Temporal geochemical variations in volatile emissions from Mount St. Helens, USA, 1980–1994

✍ Scribed by L Shevenell; F Goff


Book ID
114244036
Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
487 KB
Volume
99
Category
Article
ISSN
0377-0273

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1980 tephra from Mount St. Helens: Spati
✍ D. B. Zobel; J. A. Antos 📂 Article 📅 1991 🏛 Springer 🌐 English ⚖ 728 KB

Coarse pumice had a higher initial pH and less total N, less exchangeable K, Ca, and Mg, and less extractable B and S than finer textured layers. Tephra pH and concentrations of cations and S decreased rapidly with time, especially during the first 2 years in the finer layers. Total N, Bray-Kurtz P,