USGS Technicians Prepare to Take a Core of the Austin Chalk in Texas

Detailed Description
USGS technicians at the USGS Gulf Coast #4 Bonham borehole in preparation for geophysical logging of the Austin Chalk Group and the Eagle Ford Group mudstones, Fannin County, Texas.
Details
Image Dimensions: 5454 x 3636
Date Taken:
Location Taken: Bonham, TX, US