Photo Gallery

The Devil’s Slide, Paradise Valley, Park County, Montana.

Tertiary dike associated with the Absaroka Volcanic Supergroup, Paradise Valley, Montana.

Rock Creek Valley, a spectacular U-shaped glacial valley in the northern Beartooth Mountains, Wyoming.

Geologists examine cm-scale layering in the Banded Series of the Stillwater Complex, Beartooth Mountains, Montana. Teaching Petrology in the 21^st Century field trip, July 2003.

Basaltic andesite flow overlying debris flow with boulder-size clasts, Palisade Falls, northern Gallatin Range, Montana.

Another view of Palisade Falls, northern Gallatin Range, Montana.

Vertical sill (dark, left) intruding vertical to slight overturned Paleozoic carbonate strata in the hanging wall of the Lombard thrust in the Helena Salient, Cottonwood Canyon, near Cardwell Montana.

Another vertical sill intruding Paleozoic strata in Cottonwood Canyon.

Syncline in volcaniclastic strata of the Late Cretaceous Livingston Group, north of the Beartooth Mountains in the Crazy Mountains Basin, Montana.

At least two generations of folds are present in Archean basement rocks exposed in Beartrap Canyon, Montana.

Other Photos can be view at:

Proterozoic Mafic Dikes and Sills of the Northern Rocky Mountains

Paleomagnetic Studies of Tertiary Volcanic and Intrusive Rocks in the Cerrillos Hills, NM

GMU Field Trips

GMU Paleomagnetism Laboratory

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