| | Report (volume) | Mineral Resources of the San Juan Primitive Area, Colorado By T. A. STEVEN and L. J. SCHMITT, JR., U.S. GEOLOGICAL...Juan and the Upper Rio Grande primitive areas, Colorado. The area discussed in the report corresponds...of the Animas River._____________ Runlett Park-Cave Basin area....______________________ Mineralized fault...Creek-Emerald Lake area._____________________________ Cave Basin area_______________________________________________...___-__--_____-____-___-_ In pocket FIGURE 1. Index map of Colorado, showing area of this report_______-_. F3 2-11 | | | Report (volume) | Potential and Geology of the San Juan National Forest, Colorado Edited by Richard E. Van Loenen and Anthony B...potential and geology of the San Juan National Forest, Colorado I edited by Richard E. Van Loenen and Anthony...: I 19.3.2127 1. Mines and mineral resources--Colorado-San Juan National Forest. I. Van Loenen, Richard...famous mining districts, such as those at Rico and La Plata, but there is no significant mining being done...the Forest that overlaps the energy-rich San Juan Basin. • It is not implied that any commodities, leasable | | | Report (issue) | Petrology of the San Juan Region Southwestern Colorado By ESPER S. LARSEN, JR., and WHITMAN CROSS GEOLOGICAL...an area of I2fiOO square miles in southwestern Colorado UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...San Juan Mountains Quadrangle Field work Workers La Plata (folio 60)-.. 1896-97 Whitman Cross, assisted...GEOLOGY AND PETROLOGY OF THE SAN JUAN REGION, COLORADO vard University contributed liberally by financing...GEOLOGY AND PETROLOGY OF THE SAN JUAN REGION, COLORADO Pre-Cambrian rocks Continued Granitic rocks Continued | | | Report (volume) | of the Needle Mountains District, Southwestern Colorado GEOLOGICAL SURVEY BULLETIN 1434 GEOLOGY...SOUTHWESTERN COLORADO Precambrian Eolus Granite intruded by Tertiary stock in Chicago Basin. View southeast...of the Needle Mountains District, Southwestern Colorado ByL.J. SCHMITTandW. H. RAYMOND GEOLOGICAL A...alteration of the Needle Mountains district, Colorado UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...of the Needle Mountains district, southwestern Colorado. (Geological Survey Bulletin 1434) Bibliography: | | | Book | ............................................ 15 CAVE RESCUE IN BULGARIA — TRIFON DAALIEV .......................................................... 40 CAVE FLORA AND MYCOTA ............................................................................. 40 CAVE FAUNA ........................................................................................ 79 CAVE MINERALS IN BULGARIA — YAVOR SHOPOV ........................................... 85 STUDIES ON THE CAVE MICROCLIMATE IN BULGARIA — ALEXEY STOEV ....... |
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