BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Gas emissions from volcanoes and active tectonic regions: Implicat
 ions for the deep carbon cycle  - Prof. Tobias Fischer\, University of New
  Mexico. Chair of Deep Earth CArbon Degassing (DECADE)\, Deep Carbon Obser
 vatory 
DTSTART:20190128T130000Z
DTEND:20190128T140000Z
UID:TALK118753@talks.cam.ac.uk
CONTACT:Andy Buckley
DESCRIPTION:Active volcanoes are arguably the main pathways for mantle vol
 atiles\, including carbon\, to enter the hydrosphere and atmosphere. Carbo
 n return to the mantle via subduction results in a deep carbon cycle that 
 appears balanced within current flux uncertainties. However\, recent work 
 suggests that carbon degassing through faults in continental rifts\, such 
 as the East Africa Rift\, contribute a significant and previously unquanti
 fied amount of carbon to the atmosphere. If correct\, this observation not
  only implies current net outgassing of carbon from the mantle to the surf
 ace it may also require that significant amounts of carbon are stored in t
 he mantle below continents. This talk explores these and other aspects of 
 the deep carbon cycle and some of its implications.\n
LOCATION: Harker 1\, Department of Earth Sciences\, Downing Street
END:VEVENT
END:VCALENDAR