GSNZ Otago branch talk
Taking the temperature of faults, what coseismic paleo-thermometers can teach us about earthquake behaviour
presented by Genevieve Coffey, GNS Science, Dunedin
During an earthquake, friction along a fault can lead to the generation of high temperatures, sometimes high enough to produce melt and form glass. Measuring these temperatures can provide clues into a fault’s history and reveal aspects of earthquake rupture. The use of temperature proxies can help us address fundamental aspects of earthquake behaviour, like where within a fault zone slip is localised and how much energy is dissipated as heat during an earthquake, as well as more applied problems concerning the size and timing of past earthquakes. In this talk, a summary of past, ongoing, and future fault-heating work with a particular focus on biomarker thermal maturity will be presented.
All are welcome to attend.
As usual, the talk will be streamed live (but not recorded) at https://bit.ly/otagogeology.
Come and have dinner and drinks with Genevieve after her talk.