Contact: Carol Hughes
carol.hughes@asu.edu
480-965-6375
Arizona State University

ASU Biogeochemist Ariel Anbar

Caption: ASU biogeochemist Ariel Anbar and an international team of scientists who analyzed layers of sedimentary rock in a kilometer-long core sample from the Hamersley Basin in Western Australia report finding evidence of a hint of oxygen in Earth's atmosphere 50 to 100 years earlier than previously known. Sliced longitudinally, half of the core is housed in laboratories at Arizona State University and the other half is archived at the Geological Survey of Western Australia.

Credit: Arizona State University photo by Tim Trumble

Usage Restrictions: Photo credit to photographer and Arizona State University.

Related news release: Researchers detect hint of oxygen 50 to 100 million years earlier than first believed