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Open Access Publications from the University of California

Recent Work

The mission of the Earth Research Institute (ERI) is to support research and education in the sciences of our solid, fluid, and living Earth.

Our areas of research comprise Natural Hazards, Human Impacts, Earth System Science, and Earth Evolution. ERI strives to foster new interdisiciplinary collaborations examining how Earth processes affect mankind and how mankind perturbs the Earth.

Tutuila Drill Core Photographs


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 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.

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