1. Department of Earth Sciences; Brock University; St. Catharines Ontario Canada
2. Faculty of Earth and Life Sciences; Vrije Universiteit Amsterdam; Amsterdam Netherlands
3. Pangaea Scientific; Brockville Ontario Canada
4. Institute of Planetary Research; German Aerospace Center (DLR); Berlin Germany
5. International Space Science Institute; Bern Switzerland
6. Earth and Space Sciences; Jacobs University Bremen; Bremen Germany