David T. Johnston
University of Maryland, College Park, MD
Activity
2006
-
THE PRESERVATION OF NON-MASS DEPENDENT SULFUR ISOTOPE ANOMALIES IN A DEEP TIME ASTROBIOLOGY DRILL CORE FROM WESTERN AUSTRALIA
T20 Changes in Ocean and Atmospheric Redox State and the Evolution of Life ISunday, 22 October 20068:00 AM - 12:00 PM
2005
-
MICROBIAL SULFUR CYCLING IN THE AFTERMATH OF NEOPROTEROZOIC GLACIATION
T16 Refining the Global Neoproterozoic Geologic RecordSunday, 16 October 20058:00 AM - 12:00 PM