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UTSA research sheds light on Central Texas geology and climate change

Geology
Geology

UTSA geology researchers

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(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.

Events
Feb. 10, 5:30 p.m.

UTSA College of Architecture, Construction and Planning 2015-16 Speaker Series

The UTSA College of Architecture, Construction and Planning’s 2015-16 Speaker Series continues with Dana Cuff, Ph.D., a professor of architecture and urbanism at the University of California, Los Angeles. In her talk, Cuff will discuss new forms of “studio” and new types of practices. Free and open to the public.
Aula Canaria Lecture Hall (BV 1.328), UTSA Downtown Campus

Feb. 13, 10 a.m. - 5 p.m.

29th annual Asian Festival - Year of the Monkey

The UTSA Institute of Texan Cultures invites Texas and Texans to the Asian Festival. What began as a traditional family reunion for the Chinese New Year has expanded to include other Asian communities and participants, showcasing their unique culture and traditions.
The UTSA Institute of Texan Cultures

Feb. 13, 1 p.m.

2016 Interdisciplinary Studies Colloquium

Join the UTSA Department of Interdisciplinary Learning and Teaching in celebrating interdisciplinary inquiry at the 2016  Interdisciplinary Studies Colloquium.  The colloquium will include a panel of faculty and recent doctoral graduate and a showcase of the best IDS undergraduate inquiry projects of the year 2015. The event is free and open to the public.
Business Building (BB 2.06.04), UTSA Main Campus

Feb. 16, 8:30 - 11:30 a.m.

S.T.E.M. Career Fair

Are you looking for career opportunities in Science, Technology, Engineering or Math? Come to the SPRING 2015 STEM Career Fair. Recruiters from across the STEM fields will be present with full-time, part-time and/or internship opportunities. Professional dress is required. Bring plenty of resumes! Download the UTSA Career Fair Plus App on iOS and Android.
Convocation Center, Main Campus

Feb. 17, 5:30 p.m.

CACP Speaker Series continueswith Cesar Pelli

The UTSA College of Architecture, Construction and Planning (CACP) welcomes renowned architect Cesar Pelli as part of the CACP’s 2015-16 Speaker Series. Pelli is founder and Senior Principal of the New Haven, Conn. firm Pelli Clarke Pelli Architects. In his talk, “Becoming an Architect,” Pelli will present and discuss projects that were critical steps in his career.
Buena Vista Theater (BV 1.326), Downtown Campus

Feb. 23, 5:30 p.m.

African-American Social Welfare Pioneers Responding to Community Needs

The UTSA College of Public Policy presents the Dean's Distinguished Lecture Series featuring Dr. Iris Carlton-LaNey, Professor of the School of Social Work at the University of North Carolina-Chapel Hill. Dr. Iris Carlton LaNey will speak to the UTSA community about the role and impact of African-Americans in the social work profession.
Buena Vista Theater (BV 1.326), Downtown Campus

Feb. 23, 5:30 p.m.

African-American Social Welfare Pioneers Responding to Community Needs

The UTSA College of Public Policy presents the Dean's Distinguished Lecture Series featuring Dr. Iris Carlton-LaNey, Professor of the School of Social Work at the University of North Carolina-Chapel Hill. Dr. Carlton-LaNey will speak to the UTSA community about the role and impact of African-Americans in the social work profession.
Buena Vista Theater (BV 1.326), Downtown Campus

Feb. 23, 7 p.m.

Presentation and Book Signing with Luis Carlos Montalvan

Please join us for a presentation and book signing by Luis Carlos Montalván (Fmr. Capt., USA), author of the New York Times Bestseller Until Tuesday and the international award-winning childrens book Tuesday Tucks Me In. His books will be available for purchase at the UTSA Bookstore. This event is free and open to the public.
Southwest Room (DB 1.124), Downtown Campus

Feb. 25, 6 p.m.

12th Annual Black Heritage Gala

The 12th Annual Black Heritage Gala is a formal event which includes a student performance, keynote remarks by Michael Brown, an award presentation, dinner and dancing. Tickets are $10 for UTSA students and $15 for all other guests. Tickets are on sale now at Roadrunner Express. Contact (210) 458-4770 for more information.
H-E-B University Center Ballroom, Main Campus

Feb. 27, 9 a.m.

Cultural Contrasts in Latin America

The UTSA Institute of Texan Cultures will host a free workshop focusing on teaching Latin American culture and geography for students seeking their teacher certification. The workshop includes free resources for teaching Latin American subject matter as well as presentations on language, identity, music, geography, and political and developmental history, and a special educators’ tour of the museum’s Los Tejanos exhibit. Free with registration.
The UTSA Institute of Texan Cultures (ITC 3.01.02)


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