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View Full Version : Early Atmosphere Looked Very Different From Today



Fraser
2005-Sep-14, 06:36 PM
SUMMARY: Researchers at Washington University in St. Louis have used primitive meteorites called chondrites to develop a model of the Earth's early atmosphere. And it looked nothing like what we have today. Instead of the familiar oxygen and nitrogen, our early atmosphere would have been a toxic mixture of methane, ammonia, hydrogen and water vapour. Simulating this early environment was actually quite difficult to calculate because the minerals of the early Earth reacted to the hot environment in hard-to-predict ways.

View full article (http://www.universetoday.com/am/publish/primitive_meteorites_chondrites_.html)
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