Skip to main content
U.S. flag

An official website of the United States government

Dr. Isabelle M. Cozzarellli (far right) and her colleagues

Detailed Description

Dr. Isabelle M. Cozzarellli (far right) and her colleagues pause for a photograph at the National Crude Oil Spill Fate and Natural Attenuation Research Site, Bemidji, Minnesota. They are holding a core sample collected with "freezing drive shoe" technology developed by U.S. Geological Survey (USGS) scientists. The freezing drive shoe enables nearly complete core recovery from saturated, sandy aquifers.

Sources/Usage

Public Domain.