Earth System Science draws on chemistry, physics, biology, mathematics and applied sciences in an effort to understand the chemical, physical, biological and human influences on our planet. The major is ideal for students seeking a fundamental understanding of geosciences and the flexibility to pursue intensive study in other disciplines.

Fast Facts
  • A majority of courses integrate a fieldwork component
  • Tigers perform research with faculty who are active scholars
  • Most Tigers who pursue graduate work receive full financial support
Group of three students in a geology lab


What You'll Study

Explore complex systems, cycles and processes


Down to Earth experts in their Field

Trinity faculty are active researchers who lead students beyond the classroom, acting as mentors to students and partnering with these Tigers on groundbreaking research that is published in tier-one journals.

Benjamin Surpless
Ben Surpless, Ph.D.
Department Chair
headshot of Kurt Knesel_2022
Kurt Knesel, Ph.D.
Assistant Professor of Geosciences
Glenn Kroeger
Glenn Kroeger, Ph.D.
Associate Professor
Headshot of faculty member Daniel Lehrmann
Daniel Lehrmann, Ph.D.
Gertrude and Walter Pyron Professor of Geosciences
headshot of Cait Livsey 2023
Cait Livsey, Ph.D.
Visiting Assistant Professor
Headshot of faculty member Diane Smith
Diane Smith, Ph.D.
Herndon Professor of Geology
Brady Ziegler
Brady Ziegler, Ph.D.
Assistant Professor

Student Opportunities

Explore at all levels

Learning happens both in and outside the classroom. Geoscience students can join organizations on-campus or venture off-campus for research and internship opportunities.


Geoscience students are eligible for financial assistance from a range of internal and external sources. 


Honors Program

Departmental Honors are awarded at graduation, by a vote of department faculty, to students whose activities and achievements in Geosciences are...

Research and Experiential Learning

Geosciences students take advantage of a wide range of research opportunities and are encouraged to take advantage of the many internships and...

Study Abroad

Geosciences students can engage in the fascinating geology of Iceland and China, and Tigers also can study abroad as part of geoscience coursework...


Students have access to state-of-the-art faculty laboratories, computer workstations with specialized geoscience software, an Augmented Reality...

Student Organizations

The Geology Club is for students who share an interest in geology and want to extend their knowledge to others within the Trinity University and San...

Student Awards and Recognition

Tinker Fund Outstanding Senior Award, Ed Roy Outstanding Research Award, Field Camp Award


When You Graduate

Find Your Sustainable Future

Trinity graduates have a versatile, expansive background in both science and policy. They apply this to a wide range of postgraduate opportunities, such as graduate or professional studies in medical school, law school, education, and archaeological and museum studies.



Graduates enter a series of expanding career fields, particularly in energy resources, environmental consulting, and computer science. Others choose careers in government, non-profits, consulting, teaching, engineering, and research.

Graduate Schools or Programs:

  • Law School
  • Medical School

Career Areas:

  • Computer Science
  • Energy Resources
  • Environmental Consulting

Notable Companies who have Hired Trinity Graduates:

  • ExxonMobil
  • TCEQ (Texas Commission on Environmental Quality)
  • USAA
  • U.S. Environmental Protection Agency


Take the next step

Have more questions or want more information? Learn more about becoming a Tiger, and how you can accelerate what’s next for your education.