Snowball Earth course: Photos from the field trip & lab
Annandale campus, Northern Virginia Community College | Summer 2007 | Photographs by NVCC photographer Kevin Mattingly

David and Callan examine a sample.

Summer 2007

The students examine an outcrop of "cap carbonate" on Goose Creek.

Summer 2007

Dennis takes a close look at the outcrop.

Summer 2007

David uses his hand lens for a close look at the rock.

Summer 2007

Dennis and Sam inspect a rock sample on the field trip.

Summer 2007

Melissa checks for telling rock samples in Goose Creek's alluvium.

Summer 2007

The whole class poses in Goose Creek.

Summer 2007

Jay examines one of the samples in lab.

Summer 2007

John and Callan talk stratification.

Summer 2007

Dennis looks at the contact between the Catoctin greenstone and the marble of the "cap carbonate."

Summer 2007

Snowball Earth course description | Callan Bentley's homepage