New Wrinkle In Ancient Ocean Chemistry
Called the "Great Oxidation Event" , the oxygen spike marks an important milestone in Earth's history, the transformation from an oxygen-poor atmosphere to an oxygen-rich one paving the way for complex life to develop on the planet.
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#1 Oct 31, 2009
Life Evolution In Ocean
A. "A new wrinkle in ancient ocean chemistry"
A research team led by University of California, Riverside geoscientists has corroborated evidence that oxygen production began in Earth's oceans at least 100 million years before the Great Oxidation Event (GOE). The researchers analyzed 2.5 billion-year-old black shales, which revealed that episodes of hydrogen sulfide accumulation in the oxygen-free deep ocean occurred nearly 100 million years before the GOE. Scientists have long believed that the early ocean was characterized by high amounts of dissolved iron.
B. From "Life Is Simpler Than They Tell Us"
Direct Sunlight To Metabolic Energy, Too.
Triptophan To Serotonin To Melatonin To Neural System.
Genes to Genomes To Monocellular To Multicellular Organisms.
(Comments From The 22nd Century)
Updated Life's Manifest May 2009
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