COLORADO GEOLOGY, MINES & MINERAL DEPOSITS (Part 1). SIX REPORTS, 1957-1963. [First editions].

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US Geological Survey Professional Papers. Quarto (9 by 11.5 inches) ***CONTENTS: 1) Dings & Robinson, 1957, GEOLOGY AND ORE DEPOSITS OF THE GARFIELD QUADRANGLE, COLORADO [PP 289], 110 pages, pocket maps and illustrations. 2) Harrison & Wells, 1959, GEOLOGY AND ORE DEPOSITS OF THE CHICAGO CREEK AREA, CLEAR CREEK COUNTY, COLORADO [PP 319], 92 pages, pocket maps and illustrations. 3) Garrels & Larsen, 1959, GEOCHEMISTRY AND MINERALOGY OF THE COLORADO PLATEAU URANIUM ORES [PP 320], 236 pages, plus illustrations. 4) Steven & Ratte, 1960, GEOLOGY AND ORE DEPOSITS OF THE SUMMITVILLE DISTRICT, SAN JUAN MOUNTAINS, COLORADO [PP 343], 70 pages, pocket maps and illustrations. 5) Sims, et al., 1963, GEOLOGY OF URANIUM AND ASSOCIATED ORE DEPOSITS, CENTRAL PART OF THE FRONT RANGE MINERAL BELT, COLORADO [PP 371], 119 pages, pocket maps and illustrations. 6) Varnes, 1963, GEOLOGY AND ORE DEPOSITS OF THE SOUTH SILVERTON MINING AREA, SAN JUAN COUNTY, COLORADO [PP 378-A], 56 pages, pocket maps and illustrations. ***CONDITION: The reports are softcover, VG+ to New, and fully complete; some have mild previous ownership indications; PP 289 has a bumped corner. A related 'free' Colorado report will be included. International shipping will be extra, but only at my cost. N° de ref. del artículo OG5548

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