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SUMMARY:A Journey From The Center Of The Earth - Charles Carrigan (Visitin
 g Fellow\, Clare Hall)
DTSTART:20260204T140000Z
DTEND:20260204T150000Z
UID:TALK243145@talks.cam.ac.uk
CONTACT:Alice Turner
DESCRIPTION:As a geoscientist who has spent his career at universities and
  national laboratories studying fluid mechanics\, I have had the opportuni
 ty to pursue a wide range of research topics—from fundamental studies of
  flow in Earth’s core and mantle convection to the monitoring of CO₂ s
 equestration. The technical challenges encountered over the years have oft
 en been novel and always engaging. The U.S. Magma Energy Project of the 19
 80s\, which explored the theory and practice of drilling into a magma body
  to extract heat for electricity generation\, inspired further work on vol
 canism and magma transport within the Earth. This research led to investig
 ations of thermally driven circulations and forced magma flows in conduits
  as mechanisms for offsetting heat loss and preventing eruptive pathways f
 rom solidifying. Viscosity—a critical parameter in modeling magma flow
 —is notoriously difficult to constrain in volcanic environments and ofte
 n requires indirect and innovative methods\, including high-pressure exper
 iments conducted under challenging and sometimes hazardous conditions. At 
 the opposite end of the viscosity spectrum\, tracing the movement of gases
  through subsurface pores and fractures has also been a major research the
 me. Technologies such as electrical-resistance tomography have proven effe
 ctive in monitoring CO₂ sequestration at depths approaching 3\,000 meter
 s. Finally\, understanding how gases migrate through the subsurface under 
 the combined influence of imposed and atmospheric pressure variations rema
 ins an active challenge motivating ongoing research on multiple fronts. Th
 e motivations behind this applied research\, as well as the technologies d
 eveloped to address these problems\, will be the primary focus of this pre
 sentation.
LOCATION:Wolfson Lecture Theatre
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