(Dec. 2, 2009)--Research projects by Stuart Birnbaum, UTSA associate professor of geological sciences, and Daniel Lupton, a UTSA master's student in geological sciences, reveal new information about Central Texas' climate and water sources.
Birnbaum's team researched the ancient climate preserved in the chemical signature of samples from Kimble County, Texas, by taking rock samples from a 12-meter cliff exposure of the Hensel paleosol, an ancient soil estimated to be approximately 112 million years old.
"Our research is significant, because it could help us calculate the rate at which climate change took place in Earth's pre-human past," said Birnbaum. "Generally, we've learned that the climate 112 million years ago in what is now Central Texas was warm and arid, similar to what we see today. Once we learn how long it took the Hensel paleosol to form, we'll be in a better position to understand the human influence on global warming in the area."
The scientists analyzed carbon and oxygen isotopes and other elements present in the rock samples through various experiments. They learned that the soil formed at a temperature of 17 degrees Celsius (62.6 degrees Fahrenheit) at the base and 22 degrees Celsius (71.6 degrees Fahrenheit) at the top, a change of 5 degrees Celsius (9 degrees Fahrenheit). They also learned that the paleosol received 222-243 millimeters of precipitation per year during its formation.
Focusing on watersheds, master's student Lupton also has paid close attention to Central Texas geology over the last year. He studies hydrogeology under Alan Dutton, UTSA associate professor of geological sciences and interim chair.
"State programs such as those run by the Texas Water Development Board and national programs, such as those of the U.S. Geological Survey, produce significant amounts of raw data related to geology, geography and hydrology," said Lupton. "Our research centered around processing the raw data with the desired result of creating maps of recharge and discharge zones. Knowing the geographical distribution of recharge and discharge zones affords vested interests the option of whether or not to build sustainably in an area."
For his master's thesis, Lupton merged stream data and water well data using geographic information system (GIS) technology to create a comprehensive map of recharge and discharge zones in the Central Texas Pedernales River Valley.
He focused on the geographical area over the Trinity Hill Country and Llano Uplift aquifers. His maps of recharge and discharge zones maximize the use of sparse data and are anticipated to be a contribution to the study of aquifer interactions in the area.
UTSA's Department of Geological Sciences, housed in the College of Sciences, offers bachelor's and master's programs in geology, a master's program in multidisciplinary studies and a certificate program in geographical information science grounded in research. The department's research facilities include laboratories for biogeochemistry, hydrogeology, engineering geology, isotope geochemistry, micropaleontology and stratigraphy, remote sensing and spatial analysis, and x-ray diffraction.
Learn more at the UTSA Department of Geological Sciences Web site.
The Mexican American Studies Program will host a screening of this irreverent, entertaining and often disturbing tale that uses both fiction and documentary story telling devices to tear open a painful and long ignored history: the lynching of Mexican Americans in the southwest.
Buena Vista Building Aula Canaria (BV 1.328), Downtown Campus
Join President Ricardo Romo as he gives his address to the UTSA community.
H-E-B University Center Ballroom (UC 1.104), Main Campus
Join the College of Education and Human Development's Center for Educational Leadership, Policy and Professional Development for a discussion about what passed and what didn't in the last legislative session and what it means for Bexar County Public Schools.
Durango Building Southwest Room (DB 1.124), Main Campus
Graduate School representatives from across the country will provide information on options after earning a bachelor's degree. Students, alumni and community members are welcome.
University Center Retama Galleria, Main Campus
Kickstart your career as an entrepreneur at The University of Texas at San Antonio’s Center for Innovation, Technology and Entrepreneurship (CITE) Technology Entrepreneurship Boot Camp.
Business Building, Richard S. Liu Auditorium (BB 2.01.02), Main Campus
The UTSA College of Architecture, Construction and Planning, in partnership with AIA San Antonio’s Latinos in Architecture, presents architect Andrés Jaque, founder of the Office for Political Innovation, an architectural practice dually based in New York and Madrid.
Buena Vista Building, Aula Canaria Lecture Hall (BV 1.328), Downtown Campus
Looking for a good read? Shop for yourself or for gifts and help change a life at the same time. Browse and buy children’s stories, novels and more at the 2015 SECC Book Sale.
Sombrilla Plaza, Main Campus
The UTSA Music Department presents Emmy-award winning Composer Larry Groupe. Groupe has composed music for films such as "The Contender," "Straw Dogs" and "Miami Vice," and TV shows such as "Star Trek: The Next Generation," "Ren and Stimpy" and "American Gladiators." Lecture is free and open to the public.
Arts Building (2.03.15-18), Main Campus
Kristen Rosen is developing technology to help breast cancer patients’ quality of life
As touch screens and e-books demand more and more attention from both casual readers and scholars, many people say the handwriting is on the wall for the printed page.
At UTSA, the handwriting is on the wall for a library that doesn't have any printed books.
Since March 2010, the bookless library in the Applied Engineering and Technology Building has given UTSA students an innovative way to read, research and work with each other to solve problems.
With ultra-modern furniture and a décor featuring desktop computers, scanners and LCD screens, the AET Library is designed to engage students in an online format. But it also offers group study niches and study rooms with whiteboards and glass walls on which students can write. The space encourages teamwork, communications and problem solving for the next generation of scientists and professional engineers.
Did you know? The UTSA AET Library is the nation's first completely bookless library on a college or university campus. It served as a model for Bexar County's first-in-the-nation public bookless library system and one of its branches, the Dr. Ricardo Romo BiblioTech.
The University of Texas at San Antonio is dedicated to the advancement of knowledge through research and discovery, teaching and learning, community engagement and public service. As an institution of access and excellence, UTSA embraces multicultural traditions and serves as a center for intellectual and creative resources as well as a catalyst for socioeconomic development and the commercialization of intellectual property - for Texas, the nation and the world.
To be a premier public research university, providing access to educational excellence and preparing citizen leaders for the global environment.
We encourage an environment of dialogue and discovery, where integrity, excellence, inclusiveness, respect, collaboration and innovation are fostered.