Browsing by Subject "volcanic ash"
Now showing items 1-3 of 3
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A Volcanic Ash Layer in the Nördlinger Ries Impact Structure (Miocene, Germany): Indication of Crater Fill Geometry and Origins of Long‐Term Crater Floor Sagging
; ; Jung, Dietmar; ; ; ; Reimer, Andreas; (Journal of Geophysical Research: Planets, 2021-04-09)
Since its recognition as an impact structure 60 years ago, no volcanics were anticipated in the circular depression of the 14.8 Ma old Nördlinger Ries. Here, we describe for the first time a volcanic ash‐derived ... -
Analyse de variations minéralogiques par surfaces de tendance dans les tephra du volcan El Chichón (Chiapas, Mexique)
(E&G – Quaternary Science Journal; Vol.35, No. 1)Im Verbreitungsgebiet der vom Vulkan El Chichón im Zeitraum März bis April 1982 geförderten Eruptiva wurden 74 Ascheproben entnommen. Die Leicht- und Schwermineralführung der entnommenen Proben wurde quantitativ bestimmt. ... -
The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles
; ; ; ; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Atmospheres, 2021-09-08)
Volcanic ash (VA) from explosive eruptions contributes to aerosol loadings in the atmosphere. Aside from the negative impact of VA on air quality and aviation, these particles can alter the optical and microphysical ...
