These are photographs of drill core TGH-3 from Tutuila, American Samoa. This drill core is preserved in the United States Geological Survey (USGS) Core Research Center, Denver, CO (Core number R286). Additional information about this drill core can be found at my.usgs.gov/crcwc by searching for record number R286.
All depths in the photographs are in feet.
These photographs were taken by Mike Krahmer and Max Wilmarth, they are shared with permission from the American Samoa Power Authority.