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Deccan trap |
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Basu and his co-workers traced the origin of the Deccan Trap rocks by measuring the ratio of two helium isotopes preserved within bubbles in the basalt. In Phase II we are to acquire 500 line kms of 2-D seismic and drill 1 exploration well to 1,500 meters or 500 meters below the Deccan trap. At the spring meeting of the American Geophysical Union in Baltimore, researchers from the USGS and Oregon State University presented argon-dating results indicating that the Deccan Traps erupted over a very short geologic span about 65 million years ago, emitting a substantial burst at roughly the same time as the purported meteorite impact. |
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