FB Pixel Skip to Main Content
Allen Stork

Allen Stork

Emeritus Professor of Geology


Ph.D., University of California Santa Cruz
B.A., Pomona College



  • Ph.D., University of California Santa Cruz
  • B.A., Pomona College

Courses Taught:

  • Mineralogy
  • Igneous & Metamorphic Petrology
  • Geochemistry
  • Research in Volcanology & Petrology
  • GIS & Remote Sensing
  • Planetary Geology
  • Plate Tectonics
  • Economic Geology


My research and teaching interests include all aspects of igneous petrology and volcanology. Since coming to Western my students and I have had many projects on the igneous rocks of the Gunnison Basin. These projects include:

  • the petrology and geochemistry of the old Precambrian island arc exposed south of town;
  • petrology and volcanic structures in the large Oligocene ash flow sheets from the San Juans exposed around Blue Mesa Reservoir;
  • petrology and volcanology of West Elk Volcano;
  • petrology and geochemistry of the Gunnison Laccolith cluster that makes up the high peaks north of town, including Crested Butte;
  • petrology and geochemistry of the Miocene flood basalts that makeup Flat Top, Red Mountain, Grand Mesa etc.;
  • petrology and geochemistry of the post ash-flow (Hinsdale) shoshonite and latite lavas exposed on the north slope of the San Juan volcanic field.
  • petrology and geochemistry of Tomichi Dome.

Virtual Field Trip:

Recent Research:

  • Geologic Map of the McIntosh Mt. Quadrangle
  • Geologic Map of the Little Soap Park Quadrangle
  • Geologic Map of the Almont Quadrangle
  • Geologic Map of the Gunnison Quadrangle
  • Geologic Map of the Signal Peak Quadrangle

Recent Student Projects:

  • Brian Coven, Absolute Age and Petrographic Analysis of the Inception of the West Elk Volcanic Field, Gunnison County, Colo.
  • Ryan Murphy, Mid-Tertiary Intrusives of the West Elk Mountains, Gunnison County, Colo.
  • Jeff Jackson, Ash Stratigraphy in the Cochetopa Caldera Moat, Cochetopa Park, Saguache County, Colo.
  • Andrew Wood, Petrology of Miocene Lava Flows on Flat Top Mountain, Gunnison County, Colo.
  • Alex Csar, Interfingering ash flow tuffs comprising Tenderfoot Hill; Gunnison County, Colo.

Take the Next Step

Apply to Western

Apply to Western

We understand that applying to a university can be daunting, which is why we make our admission process as simple and straightforward as possible. Learn more about applying to your program of choice at Western.

Visit Western

Visit Western

The best way to find out what makes Western such a special place is to experience it for yourself. Our student-led tours give you an insider’s perspective on everything from academics to student life.

Alumni Community

Alumni Community

We keep the Mountaineer spirit going strong within our alumni community. Whether getting together with friends at an annual event, making a donation or mentoring a student, graduates continue to play an important role in the Western community.