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How (not) to make phonolite

An Otago Geology Seminar presented by Dr Marco Brenna.

Phonolite, like music, comes in a variety of tempos. From brewing lava lakes to powerful Plinian eruptions and all the rhythms in between; from bearing mantle xenoliths to giving life to carbonatite. In this talk I will review the breadth of phonolite associations and present an experimental investigation aimed at producing phonolite from trachyte, as was observed in a pyroclastic sequence in Saudi Arabia. Experiments enabled a view of pre-eruptive magma storage conditions and reservoir processes... despite not making a phonolite.

At level 2 there will be limited seating available in the Benson common room, so the talk will also be streamed via Zoom:

https://otago.zoom.us/j/96258810293?pwd=dmpNN21rWFcvdmE4dC8wYU9QODhpZz09

Date Tuesday, 15 September 2020
Time 1:00pm - 1:55pm
Audience All University,Public
Event Category Sciences
Event Type Seminar
CampusDunedin
DepartmentGeology
LocationBenson Common Room (Gn9), Geology Building, Dunedin Campus, University of Otago
CostNo charge
Contact NameMarco Brenna
Contact Emailmarco.brenna@otago.ac.nz
Websitehttps://www.otago.ac.nz/geology/news/events/

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