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SUMMARY:Exploring the seafloor: the rock record of hydrothermal fluid circ
 ulation - Jessica Warren - University of Delaware
DTSTART:20240205T180000Z
DTEND:20240205T190000Z
UID:TALK209815@talks.cam.ac.uk
CONTACT:Lucas Measures
DESCRIPTION:Samples of seafloor rocks provide insights on processes at rid
 ges and transform faults. I will present constraints on hydrothermal fluid
  circulation recorded in ultramafic rock samples from the Gakkel and South
 west Indian ridges. Petrographic and geochemical datasets for these sample
 s indicate that fluid circulation occurred to temperatures >900C\, which s
 uggests that seawater is able to circulate to depths >20 km. Hydration to 
 these depths implies that the oceanic lithosphere can be a significant res
 ervoir of water from the time that it is created.
LOCATION: Harker 1\, Department of Earth Sciences\, Downing Street
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