TY - RPRT TI - Crater-based dating of geological units on Mars: methods and application for the new global geological map AU - Thomas Platz AU - Gregory Michael AU - Kenneth L. Tanaka AU - James A. Skinner AU - Corey M. Fortezzo PY - 2013 DO - 10.1016/j.icarus.2013.04.021 UR - https://pubs.usgs.gov/publication/70047195 ID - 70047195 ER -