COSEE Ocean Systems: News
Researchers Quantify Toxic Ocean Conditions During Major Extinction 93.9 Million Years Ago
Description: Oxygen in the atmosphere and ocean rose dramatically about 600 million years ago, coinciding with the first proliferation of animal life. Since then, numerous short-lived biotic events - typically marked by significant climatic perturbations - took place when oxygen concentrations in the ocean dipped episodically. The most studied and extensive of these events occurred 93.9 million years ago. New research suggests that previous estimates of oxygen-free and hydrogen sulfide-rich conditions during this event were too high. [Source: UCR Today (University of California, Riverside)]
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Source: UCR Today (University of California, Riverside)
Publish Date: 10/28/2013
Reading Level: Basic
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