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Direction of movement of jasperoidizing solution
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Geology and ore deposits of the Boulder County tungsten district, Colorado
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Geology and ore deposits of the Breckenridge mining district, Colorado
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Geology and ore deposits of the Front Range, Colorado
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Geology and ore deposits of the Montezuma Quadrangle, Colorado
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Measuring geothermal gradients in drill holes less than 60 feet deep, East Tintic district, Utah
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Ore deposits of the Gilman District, Eagle County, Colorado
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