Newsletter

Verhagen receives AGU's Outstanding Student Presentation Award (OSPA)

VerhagenChristina Verhagen has received an OPSA for her poster at the 2019 AGU Fall Meeting. Her presentation, entitled "Linking paleomagnetism and petrographic observations to long-lived hydrothermal activity at the Chicxulub crater" was rated among the top ~5% of student presentations in the Geomagnetism, Paleomagnetism, and Electromagnetism Section. Paleomagnetic analysis of impact breccia from the Chicxulub impact crater showed evidence of long-lived hydrothermalism within the crater. Using electron microprobe analysis, Christina and colleagues were able to identify the main magnetic remanence carriers as hydrothermal Fe-sulfides and Ti-magnetites. These secondary minerals reveal changing temperatures and chemical conditions within hydrothermal fluids through time.