Geoffrey Collins
Chair, Associate Professor of Geology
Office: Science Center 216
Phone: 286-5626
Email: gcollins@wheatoncollege.edu
Personal web page
Degrees
Ph.D., Brown University
B.A., Carleton College
Main Interests
I am a planetary scientist, using the tools of geology, geophysics, and remote sensing to learn about the other planets in our solar system. Studying the evolution and current behavior of other planets gives us perspective on how the Earth works, and in what ways the Earth is a unique place.
Research Interests
I am primarily interested in geological processes on the icy satellites of the outer solar system, and I have been involved with various NASA projects such as the Galileo mission to Jupiter and the Cassini mission to Saturn. I am trying to figure out what caused the deformation that we see in the grooved terrain on Ganymede and the ridges and chaotic terrain on Europa. Titan has also become a research focus for me, with the new revelations of icy terrain dominated by dunes and river channels. I have also investigated geological problems on Venus, Triton, and Pluto.
Teaching Interests
I love to introduce students to the wonders of the solar system and the deep history of our own Earth. I strive to teach science as a creative process, rather than as a static set of "facts," by showing students how we know what we think we know, and how to figure out the answers on their own. I teach a diverse set of courses, including Geology, The Solar System, Remote Sensing, Frontiers of Astronomy, and Geophysics. You can read detailed descriptions of courses I teach here.
Other Interests
Canoeing, cooking, cross-country skiing, board and war gaming, hiking, and woodworking
Student Projects
Dan Hill-Moses '10: Fusion of Galileo spectrometer and imaging data in GIS
Louie Michaud '08: Development of geometrical strain analysis methods using Galileo data
Jon Kay '08: Comparing crater classification schemes for Ganymede global geological map
Emily Martin '06: Classification of grooved terrain on Ganymede
Jennifer Savage '06: Geological mapping of Ganymede
Rachel Fontaine '04: Reconstructing the geometry of ancient impact basins on Ganymede and Callisto
Jon McBee '04 and Dan Hartmann '04: New techniques for measuring strain across ridges on Europa
Dan Hartmann '04 and Matt Blake '04: Morphology and mapping of chaotic terrain on Europa
Jon McBee '04: Time sequence analysis of groove formation in Sippar Sulcus and the leading hemisphere of Ganymede
Karrie-Sue Farrar '03: GIS database of craters and impact basins on Ganymede
Selected Publications, Creative Work or Performances
G. Collins and J. Goodman, Enceladus' south polar sea, Icarus, 189, 72-82, 2007.
G. Collins and T. Johnson, Ganymede and Callisto (book chapter), Encyclopedia of the Solar System (2nd ed.), 449-466, Academic Press, 2007.
G. Collins, Relative rates of fluvial bedrock incision on Titan and Earth, Geophysical Research Letters, 32, L22202, 2005.
R. Pappalardo and G. Collins, Strained craters on Ganymede, Journal of Structural Geology, 27, 827-838, 2005.
G. Collins, J. Head, R. Pappalardo, and N. Spaun, Evaluation of models for the formation of chaotic terrain of Europa, Journal of Geophysical Research, 105, 1709-1716, 2000.
G. Collins, J. Head, A. Basilevsky, and M. Ivanov, Evidence for rapid regional plains emplacement on Venus from the population of volcanically embayed impact craters, Journal of Geophysical Research, 104, 24,121-24,139, 1999.
G. Collins, J. Head, and R. Pappalardo, The role of extensional instability in creating Ganymede grooved terrain: Insights from Galileo high-resolution stereo imaging, Geophysical Reaearch Letters, 25, 233-236, 1998.
G. Collins, J. Head, and R. Pappalardo, Formation of Ganymede grooved terrain by sequential extensional episodes: Implications of Galileo observations for regional stratigraphy, Icarus, 135, 345-359, 1998.
See a complete publication list here.