In Ancient Shale, Thallium Tells a Tale that Foreshadows Oceanic Oxygen Depletion (2 of 3) (IMAGE)

American Association for the Advancement of Science (AAAS)

In Ancient Shale, Thallium Tells a Tale that Foreshadows Oceanic Oxygen Depletion (2 of 3)

Caption

An influx of nutrients to the ocean - catalyzed by higher temperatures - stimulates organic matter production and decomposition, consuming oxygen in the process. This is likely a primary driver of oxygen loss in ancient oceans, and is also happening today.. This material relates to a paper that appeared in the Aug. 9, issue of Science Advances, published by AAAS. The paper, by C.M. Ostrander at Arizona State University in Tempe, Ariz, and colleagues was titled, "Constraining the rate of oceanic deoxygenation leading up to a Cretaceous Oceanic Anoxic Event (OAE-2: ~94 Ma)."

Credit

[Credit: This figure was created by Natalie Renier, a science illustrator at Woods Hole Oceanographic Institution (WHOI).]

Usage Restrictions

Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact <i>Science</i> for permission.

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.