Explore Earth’s formation and evolution over time, as well as the interplay of active processes that continue to shape our planet. 

As a geology major or minor, you will study the Earth’s processes in classrooms, labs and in the field.

The department offers five major tracks: General Geology; Environmental Earth Science; Earth, Planetary and Space Science; Geochemistry; and Public Policy

Our location is perfect for field exploration and research with trips to spectacular settings ranging from the Mojave Desert and remote Utah to our nearby mountains and desert.

  • Majors at Pomona: Geology
    Prof. Robert Gaines on geology and Pomona’s location advantage
  • Field trip with Professor Robert Gaines
    Field trip with Professor Robert Gaines
  • In class with Professor Jade Star Lackey
    In class with Professor Jade Star Lackey
  • In class with Professor Linda Reinen
    In class with Professor Linda Reinen
  • In class with Professor Eric Grosfils
    In class with Professor Eric Grosfils

What You'll Study

  • Observe and analyze the natural environment
  • Study abroad to explore diverse geologic settings
  • Scientific method, data collection and analysis
  • Modern analytic methods and equipment
Field trips each semester

Researching at Pomona

  • Joanmarie Del Vecchio '15
    Mechanisms for Valley Aggradation, Eastern San Gabriel Mountains, CA

    Joanmarie Del Vecchio ’15 sampled and dated soils and used digital modeling, finding evidence of ancient river capture events, where one stream was tectonically beheaded.

  • Robert Goldman '15 project
    Chondrule and CAI Size by Electron Microprobe and Computed Tomography (3D)

    Robert Goldman ‘15 measured mineral volumes in some of the oldest meteorites in the solar system with an x-ray-computed tomography scanner and electron microprobe.

  • Michael Wucher '17
    Physical Modeling to Investigate Surface Deformation on Venus

    Michael Wucher ’17 was part of a team using map-derived hoop strain and elastic models of reservoir inflation to quantify dike displacement on Venus.

  • Anne Fulton '15
    Magma Evolution in the Islands of the Four Mountains, Alaska

    Anne Fulton ’15 investigated the behavior and geochemistry of several active volcanoes during a month of fieldwork in the Aleutian Islands. 

Robert Goldman '15
Robert Goldman ‘15

Geology is one of Pomona’s most rewarding majors. Whether studying formations in the field, operating state-of-the-art laboratory equipment or helping develop cutting-edge computational models, I have had countless opportunities to deepen my knowledge of geologic phenomena and collaborate with an engaging group of students and faculty.

Faculty & Teaching

Our faculty studies Earth's geologic processes in the field and lab. Their expertise includes sedimentology, paleontology, rock deformation, magma formation and fluid flow, volcanic eruptions and planetary geology. Their research is supported by NASA, the National Geographic Society, the National Science Foundation, the Research Corporation and Sigma Xi.

Professor Jade Star Lackey

The very location of the College, at the edge of two tectonic plates, means that the Department is fortunate to be able to offer students an education in one of the most geologically diverse and active places on the planet. Our major's field, classroom and research experiences are among the best and most complete in the geosciences.