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DTSTART:20251102T020000
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DTSTART:20260308T020000
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UID:calendar.1480.events_uoft_date.0@www.es.utoronto.ca
CREATED:20260311T154143Z
DESCRIPTION:\nWhen and Where: \nThursday, March 26, 2026 12:00 pm to 1:00
  pm \n ES 2093 - Seminar Room \n Earth Sciences Centre \n 22 Ursula Frankl
 in St \n\nSpeakers \nAnthony Williams-Jones, MGill University 2025 Howard
  Street Robinson Medalist \n\nDescription: \nUntil recently, conventional
  wisdom has held that the main agent of metal transport in hydrothermal sy
 stems is an aqueous liquid. However, there is increasing evidence from vo
 lcanic vapours, geothermal systems (continental and submarine), vapour-r
 ich fluid inclusions, and experimental studies that the vapour may be an 
 important and even dominant ore fluid in some hydrothermal systems, notab
 ly those that form porphyry and epithermal deposits. Here we present evide
 nce for the transport of metals by vapor (an aqueous fluid of any composit
 ion with a density lower than its critical density), clarify some of the 
 thermodynamic controls that may make such transport possible, and propose
  a model for the formation of porphyry and epithermal deposits that involv
 es precipitation of the ores from vapour.Speaker Bio: GAC Howard Street Ro
 binson Lecture Tour_2025-2026_Dr. Williams-Jones.pdf   \n\nContact Informa
 tion: \n Karyn Gorra k.gorra@utoronto.ca 4169782060 \n22 Ursula Franklin S
 t \n\nCategories \n Seminar \n\nAudiences \n Graduate StudentsPosdoctoral 
 FellowsResearch AssociatesStaffUndergraduate Students
DTSTART;TZID=America/New_York:20260326T120000
DTEND;TZID=America/New_York:20260326T130000
LAST-MODIFIED:20260311T154143Z
LOCATION:22 Ursula Franklin St
SUMMARY:Seminar: Professor Anthony Williams-Jones, Howard Street Robinson 
 Lecturer. Title: Metals, Vapours, and Volcanoes
URL;TYPE=URI:https://www.es.utoronto.ca/events/seminar-professor-anthony-wi
 lliams-jones-howard-street-robinson-lecturer-title-metals-vapours
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