The Geological Society of America

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The Geological Society of America provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry.
Geochemistry of the end-Permian extinction event in Austria and Italy: No evidence for an extraterrestrial component
Koeberl,Christian et al.
Geology(2004),32(12):1053
http://dx.doi.org/10.1130/G20907.1

The Geological Society of America
The Geological Society of America
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GeoScienceWorld