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9 August 2009

Degassing structures in pyroclastic deposits

One of my favorite features of the pyroclastic deposits that I saw in Italy were degassing structures. A good field description of these features would be “fines-depleted pipes”, since it doesn’t make any assumptions about their origins (something to be avoided in the description section of your field notes!) Branching degassing structures in a pyroclastic deposit in the Colli Albani (Alban Hills) volcanic district. (The ruler is divided into ten-cm …


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