BEGIN:VCALENDAR
PRODID:-//University of Otago//Events Calendar//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:University of Otago Calendar
BEGIN:VEVENT
UID:https://www.otago.ac.nz/news/events/geology-seminar-series-petrogenesis-of-pounamu-and-associated-rocks
URL:https://www.otago.ac.nz/news/events/geology-seminar-series-petrogenesis-of-pounamu-and-associated-rocks
DTSTART;TZID=Pacific/Auckland:20240716T130000
DTEND;TZID=Pacific/Auckland:20240716T140000
SUMMARY:Geology seminar series: Petrogenesis of pounamu and associated rocks
DESCRIPTION:Mike Palin and Candace Martin, Department of GeologyFrom a geological perspective, pounamu is a metamorphic rock, the most abundant variety of which is composed of nearly monomineralic tremolite. We discuss its origin in light of geologic occurrence, reassessed Rb-Sr isotope data, and calculated fluid-mineral equilibria. We conclude that tremolite replaced serpentinite along flow paths of schist-equilibrated aqueous fluid. The model implies that diopside- and talc-rich rocks may form in a similar manner during up- and down-temperature flow respectively. 
LOCATION:Benson Common Room (Gn9), Geology Building, 360 Leith Street, Dunedin
END:VEVENT
END:VCALENDAR