Gable D. J. 1984 GEOLOGIC SETTING AND PETROCHEMISTRY OF THE LATE CRETACEOUS - EARLY TERTIARY INTRUSIVES IN THE NORTHERN FRONT RANGE MINERAL BELT COLORADO U. S. Geological Survey Professional Paper #1280 4to, in wraps as issued, some wear, ex-lib. copy, contents good with 33 pp., 1 plate and 5 figures on the igneous rock of the Rocky Mountain Front Range just west of Boulder Colorado.

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