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Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6397
University of California - Riverside

Ancient Soils

Caption: This photo shows one-billion-year-old weathering profiles from Michigan. Ancient soils like these provide evidence for low atmospheric oxygen levels through much of Earth's history.

Credit: Noah Planavsky.

Usage Restrictions: None

Related news release: The ups and downs of early atmospheric oxygen


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