Vesta's Geological Map Showing Veneneia, Rheasilvia, Marcia Impacts (IMAGE) Arizona State University Caption In this detail from the new geological map of Vesta, brown colors represent the oldest, most heavily cratered surface. Purple colors and light blue represent terrains modified by the Veneneia and Rheasilvia impacts, respectively. Light purples and dark blue colors below the equator represent the interior of the Rheasilvia and Veneneia basins. Greens and yellows represent relatively young landslides or other downhill movement and crater impact materials, respectively. Tectonic features such as faults are shown by black lines. Credit NASA/JPL-Caltech/Arizona State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.