 | | Report (volume) | | Zinc-Copper-Lead Sulfides and Zinc Spinel (Gahnite) in Colorado U,S. GEOLOGICAL SURVEY BULLETIN 1550 , ...Zinc-Copper-Lead Sulfides and Zinc Spinel (Gahnite) in Colorado By DOUGLAS M. SHERIDAN and WILLIAM H. RAYMOND...zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado. (Geological Survey bulletin ; 1550) Bibliography:...Geology, Stratigraphic-Precambrian. 3. Geology-Colorado. I. Raymond, William H. II. Title. III. Series...amphibolite facies Deposits in the vicinity of Salida Gahnite and its significance . . . Economic potential |  | | Report (issue) | | deposits of base-metal sulfides and gahnite, Chaffee County, Colorado By Douglas M. Sheridan and William...standards and stratigraphic nomenclature. Denver, Colorado CONTENTS Page Abstract........................gneiss....................................... Gahnite-bearing quartz-mica schist.......................precious-metal contents of the ores...................... Gahnite-bearing rocks and ores...........................Geologic map of the Sedalia mine area, Chaffee County, Colorado.......................................... |  | | Journal (article/letter/editorial) | | Dakota Crystal Mountain district, Colorado Clear Creek district, Colorado Bunkerville district, Arizona/Nevada...in quartz, Wisdom Ranch prospect, Larimer County, Colorado. Crystal is VA by VA by 1/8 inches. MARCH/APRIL...with zircon, autunite, garnet, uranophane, and gahnite. Garnets to one inch in diameter, black tourmaline...at the R . B. Weeks property, Wakefield, Carroll County (Chayes, 1944). Pale yellow-green transparent plates...Abrasives Company garnet mine, Wilmot, Merrimack County (Morrill, 1960; Meyers and Stewart, 1956). Dull |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Report (issue) | | Basement in Colorado GEOLOGIC A I, Rock Units of the Precambrian Basement in Colorado By OGDEN TWETO...TWETO GEOLOGY OF THE PRECAMBRIAN BASEMENT IN COLORADO U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1321-A...igneous rocks in outcrop and the buried basement in Colorado UNITED STATES GOVERNMENT PRINTING OFFICE...1912-1983 Rock units of the Precambrian basement in Colorado. (Geological Survey Professional Paper ; 1321-A)...Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado. QE653.T9 1986 551.7'1'09788 I. Title. For sale |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ¥em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | Book (edition) | | — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL ★ COLORADO GEM TRAILS AND MINERAL GUIDE ★ SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Report (issue) | | 1965. 1966. 1967. 1968. Numerous Federal, State, county, and local agencies and other organizations and...-___ California. _ __________________________ Colorado ______________________________ Montana. _____...Mountains_--_-------------- A41 Precambrian rocks of Colorado.__________ 41 41 Mesozoic stratigraphy.__________________...Dakota___________--------------75 Utah-..-.__-. -77 Colorado-____ ___________-.----77 Kansas.--.__.______-_-_...cooperators________-____________________ State, county, and local cooperators_____________ Other cooperators |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, 1and local agencies and other organizations and...-----------Arizona _______________________________ _ Colorado _______ --_-------------··------ v A35 35 36...cooperators ____________________________ _ 251 State, county, and local cooperators ______________ _ 251 Other...geochronologic studies in the Bodie district, Mono County, Calif., by M. L. Silberman and F. J. l{leinhampl...rocks from the Gold Acres open-pit mine, Lander County, north-central Nevada. Titanium, chromium, calcium |  | | Report (issue) | | listed on pages A259-A264. Numerous Federal, State, county, and municipal agencies listed on pages A211-A215...____________--------_---_--_Utah......--_---------------.--------Colorado.. ------------------------Kansas.______--_---...Wyoming.____________________ Colorado __ _______________________________ Colorado Plateau________________________________...__ Utah..____________________________________ Colorado. _ _________________________________ New Mexi... -.-..._-----_-_--__ .______.___._..___ State, county, and municipal-____________________ Other cooperators--___ |
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