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080 _a55(73)(05)
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110 _aGeological society of America
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245 _aGeological society of America bulletin
260 _aColorado
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490 _vvol.1, no.1
500 _aLib. has v.89 (1978)
942 _cBV
952 _w2009-08-18
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952 _w2009-08-18
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999 _c2826
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