AGS Executive Officer & Chair Meeting

December 8th, 2007

Officers and Chairs will meet at Scholtz Beer Garden on Monday January 14th at 6 pm (note it was moved up one day). Please contact one of the officers or stop by if you have an AGS item you want addressed.

Maps in Schools

December 3rd, 2007


AGS is in the process of buying and framing geologic maps produced by the USGS titled “Tapestry of Time and Terrain” to donate to area schools. The idea, put forth by the Corpus Christi Geological Society, is to get these beautiful maps permanently on the walls in schools to promote geoscience education. GCAGS is sending us some seed money for the program. John Mikels, AGS Education Chair, is heading up the program. Please let us know of schools or teachers that may be interested in the maps.

AGS member Al Broun receives research award

November 15th, 2007

Al Broun received a 2007 Stewardship Award from the Barton Springs/Edwards Aquifer Conservation District for his research on the geology of the Trinity Aquifer in Hays County. His work was recently published in the AGS Fieldtrip Guidebook (Oct-07) and presented as a poster at the GCAGS conference in Corpus. Congratulations Al!

AGS members present at Elementary School

November 9th, 2007


Yes, they let AGS Education Chair John Mikels and President Brian Hunt spend the morning talking about geology to 80 4th graders at Clayton Elementary in Southwest Austin. John is seen here with a captive audience demonstrating the water cycle with his aquifer model.

Release of AGS Bulletin 2006-2007

November 6th, 2007


The annual AGS Bulletin was revealed at the November meeting by editor Dr. Robert Mace. Go to the publications page to download the PDF.

Website Launched November 5, 2007

November 5th, 2007

AGS members Craig Caldwell and Brian Hunt work with local web developer Webii.net / WebXess, Inc. to develop a new look and tools for the website. Thanks go to fellow AGSers Ann Molineux and Al Cherepon for their initial work on the subcommittee.

AGS Fieldtrip to Westcave Preserve & Reimers Ranch

October 21st, 2007


AGS conducted a fieldtrip to Westcave Preserve and Reimers Ranch on Saturday October 20, 2007. The picture here shows half of the participants at Hammetts Crossing looking at the lower Cretaceous Sycamore Sand. This stop was led by Eddie Collins. A guidebook is available for purchase at the BEG.

NASA Awards Dickerson Exceptional Public Service Medal

July 1st, 2007

NASA Awards Dickerson Exceptional Public Service Medal

July 19, 2007

AUSTIN, Texas—Meet Patricia Dickerson for the first time at her workspace in the Walter Geology Library and you would never suspect that this affable and unassuming geologist has taught and inspired world famous test pilots and astronauts, including John Glenn.

The National Aeronautics and Space Administration (NASA) has awarded her its Exceptional Public Service Medal, granted to non-government employees for contributions to the mission of NASA. Dickerson, a research fellow working in the Walter Geology Library at The University of Texas at Austin’s Jackson School of Geosciences, was honored for her “outstanding contributions to astronaut training in geology and geophysical sciences disciplines.”

Dickerson has trained more than 20 field teams of astronaut candidates, or ASCANs as they are known at NASA, since 1996. The groups travel to northern New Mexico to study geological features and processes similar to those on Earth’s moon and Mars. Dickerson teaches them to use magnetometers, gravimeters and other geophysical instruments to image buried features such as faults. The most recent crews collected data to help assess groundwater resources for the Taos Indian Pueblo.

In addition to field instruction, Dickerson has briefed shuttle and space station astronauts (STS missions 89-117 and ISS Expeditions 1-5) on rifting and mountain-building, including earthquake and volcanic hazards. Understanding Earth processes results in informed photographs from space of scientifically significant features on Earth. A bonus for Dickerson is the opportunity to look through all the images captured during a mission.


Dickerson (right) helped John Glenn (center) prepare for his historic return to space in 1998.

“When reviewing all the film and electronic images, there is always the element of surprise. You may have passed over the middle of Australia 77 times, but then you see something you’ve never seen, because of some quirk of the light or a break in the clouds,” said Dickerson. “It’s just delicious!”

She has also helped select images and provide commentary for astronauts to use as they tour the world following a mission, visiting classrooms and giving public lectures

“One of my goals is to seize upon their enthusiasm and their access, particularly to kids and teachers, to excite people about the earth sciences,” said Dickerson.


Dickerson trains astronauts to take scientifically useful photographs while in orbit, such as this one of the Red Sea.

She began training astronauts in 1996 soon after completing her Ph.D. in geology at The University of Texas at Austin. Bill Muehlberger, a professor emeritus still active at the University, had trained astronauts in geology since the Apollo moon missions. Believing that NASA needed someone to brief shuttle and space station crews on tectonic processes and aid in interpreting Earth images taken from orbit, he recommended Dickerson. She was soon training astronauts with Muehlberger and in 1999 initiated geophysical field exercises in collaboration with colleagues at the New Mexico Bureau of Geology & Mineral Resources.

“A comment that we often get from astronaut candidates at the end of a field session is that we’ve forever changed their way of looking at the Earth,” said Dickerson. “That’s immensely gratifying!”

In a ceremony at Johnson Space Center in Houston on June 5, 2007, Dickerson and four others were awarded NASA’s Exceptional Public Service Medal.


ASCANs learn how to use geophysical instruments in northern New Mexico to study geological processes and formations similar to those on Mars and the Moon.

“For me, one of the joys of instructing these folks is the gusto with which they seize ideas that are new to them,” said Dickerson. “Most astronaut candidates have little to no earth science background. Yet they’re already well versed in using instruments of all kinds, so there’s nothing intimidating about the technology. When someone pitches them something entirely out of their experience, they reach for it and they swiftly master it.”

In addition to training astronauts, and serving as study leader for Smithsonian natural history tours, Dickerson conducts her own field research on the tectonic evolution of Texas and adjacent Mexico from the Precambrian to the present. She also works for the American Geological Institute contributing references to GeoRef, the most comprehensive database of geoscience literature in the world.

By Marc Airhart (from UT Austin Webpage)


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