Gregg

The 2019 Woodford-Eckis lecturer is Professor Tracy Gregg, University at Buffalo, who will deliver the talk titled "Driving in the Dark: Exploring Mid-Ocean Ridges as an Analog to Venus."

Mid-Ocean Ridges

Venus image copyright C.J. Hamilton; HOV Alvin image courtesy of WHOI.

At mean planetary radius, the surface of Venus has an atmospheric pressure that is ~90 times greater than at Earth’s sea level, with an average temperature of ~460°C. These ambient conditions affect Venus’ volcanoes: the eruption style (whether a volcano will violently explode or quietly effuse lava) and lava-flow behavior are partly controlled by the surrounding temperatures and pressures. Intriguingly, volcanoes at Earth’s mid-ocean ridges, located beneath ~2500 m of water, also experience high pressures (~250 MPa) and provide potential analogs for Venus.

In this talk, Gregg will discuss fieldwork (using the HOV Alvin) at mid-ocean ridges, and how techniques used to study and interpret mid-ocean ridge processes can inform our investigation and understanding of Venusian volcanology.

Event Contact

Wednesday, February 13, 2019 11:00 am to 12:00 pm
  • Pomona College
  • Rose Hills Theatre, Smith Campus Center
  • 170 E. Sixth Street
General Public
Pomona Alumni
Pomona Students
Claremont Colleges Community