 | | Book (volume) |
| ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ..................................Co. Mining Districts ............................................................22 Arizona County Map.........................23 Arizona – Cochise Co. Mining Districts .................................... |
 | | Book (volume) |
| ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a...deep red to variegated⎯ocher. BIBB COUNTY GENERAL AREA: c county gravel pits along the Cahaba R.⎯gemmy |
 | | Book (volume) |
| ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a...deep red to variegated⎯ocher. BIBB COUNTY GENERAL AREA: c county gravel pits along the Cahaba R.⎯gemmy |
 | | 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 |
 | | Book |
| stumble over a valuable nugget and stake your own mining claim? Indeed it to is, and author book Jay...prospecting, he points out, is in abandoned mining districts, where valuable mineral ores are present...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...RANSOM 1875-1948 An to the Eastern '‘Schoolmarm” Mining Camps of the Old West I I a s I \ h K... CONTENTS Preface ix PART I 1 Introduction to Mining and Mineralogy 2 Preparation for Mineral Collecting |
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| Petrified Forest Trails Arizona Gem Trails and the Colorado Desert of California High Tension (A Biography)...\merica Alabama Alaska Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho...time when Neolithic man was picking up gold and copper nuggets to be hammered into ornaments ( 20,000-14...6000 B.c. and had been buried beside the body of "King" Zer. Only one arm remained of the ancient queen...of commercial mining is also long, beginning with the Kenya opal mines of 4000 B.C. Mining began with gemstones |
 | | Journal (article/letter/editorial) |
| SOME MINERAL OCCURRENCES IN THE GUFFEY REGION, COLORADO* Jeuos E. Bnven, []niversity of Michigan, Ann...north-central Fremont County and southeast Park County in the Front Range of central Colorado. Its center is...The outcrop is about 500 feet east of the Copper King prospect described by Hanley et al. (1950, p. 105)...sillimanite, microcline and plagioclase.Kyanite has previously not been reported from this part of Colorado. Aggregates...Creek and Lues Gulch just a few feet north of Colorado State Highway 9 is a lens of relatively pure sillimanite-quartz |
 | | Report (volume) |
| DIRECTOR BULLETIN 527 ORE DEPOSITS OF THE HELENA MINING REGION MONTANA BY ADOLPH KNOPF WASHINGTON GOVERNMENT............................ Historical sketch of mining..................................................43 43 44 44 45 45 46 46 48 Tourmalinic silver-copper deposits............................. Tourmalinic..................................... Marysville district..................................................................................... Elliston district.............................................. |
 | | Report (issue) |
| PHYSICAL SCI. COUNTY REPORT 7 GEOLOGY AND MINERAL RESOURCES OF IMPERIAL COUNTY, CALIFORNIA Uk ... R&daubced. oj COUNTY IMPERIAL Gedifansua By Paul K. Morton Geologist COUNTY REPORT California...Sand Hills, as viewed toward the northwest from County Park. The prevailing wind direction, as indicated...PREFACE vi ABSTRACT vii INTRODUCTION Summary of County 1 Mineral Trends and Needs Principal Geographic...Quaternary lake beds Eastern and northeastern Imperial County Sedimentary breccia 1 1 1 1 1 19 19 19 1 Andesite |
 | | Journal (article/letter/editorial) |
| batholith. The writer proposes that the sulfur, iron, copper, zinc, and lead were derived from magma in the...investigation of the mineral deposits in the Elliston mining district in the northwestern part of the batholith and...generalized outcrop area of the Boulder batholith and mining districts in the northwestern part of the batholith...of the batholith are recognized in the Elliston district, and numerous others are found in the northwestern...metals recovered; lead, zinc, and minor amounts of copper have also been mined. The valuable minerals are |
 | | Report (issue) |
| published information, field investigations, and mining company data. 2 ABBREVIATIONS USED IN THIS REPORT...billion percent short ton U.S. dollar gold silver copper lead zinc cobalt manganese iron uranium oxide phosphorous...resources Mining districts Gibbonsville Mining District Indian Creek Mining District Mineral Hill Mining District...Mackinaw Mining District Blackbird Mining District Wilson Creek Mining District Yellowjacket Mining District...Range Mining District Eureka Mining District Carmen Creek Mining District Eldorado Mining District Pratt |
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| GEOLOGY AND ORE DEPOSITS OF THE OCEUR D'ALENE DISTRICT, IDAHO BY RANSO~IE FREDERICK LESLIE AND FRANK.... ..... . . 65 Structural subdivisions of the district. . ................................•.. .. ......-Structure-Continued. Structural subdivisions of the district-Continued. Page. Southeastern area ... _. ___..._________ . _..... __ ._ .... _.... __ 78 History of mining development .. ______ .. ___ . __________ . _______...______________ ..... __ . __ .. _.. _._____ 82 Copper _____________ .... _.... _.. _____ . . _______________ |
 | | Report (issue) |
| GEOLOGY AND MINERAL RESOURCES OF SAN DIEGO COUNTY, CALIFORNIA By F. HAROLD WEBER JR., California...parts of several sections, by R. M. Stewart COUNTY REPORT California Division of Mines Ferry Building...CAMPBELL, Director AND GEOLOGY State Geologist COUNTY REPORT ^ Price $8.00 3 CONTENTS Page ABSTRACT...undivided and older Quaternary _ rocks of the Salton Basin _ Miocene rocks Split Mountain formation Alverson...Continued — and older Quaternary rocks of the Salton Basin Continued Upper Tertiary and lower Quaternary systems |
 | | Report (volume) |
| BANCROFT INCLUDING A SECTION ON THE REPUBLIC MINING DISTRICT BY WALDEMAR LINDGREN AND HOWLAND BANCROFT....... History of mining activity.............................................. Mining and metallurgy....................................... Methods of mining........................................................ 26 Copper-deposits....................................................... 27 Copper-bearing quartz.... The mining districts and ore deposits....................................... Stevens County....... |
 | | Report (issue) |
| 1966 1967 1968 1969 1970 Numerous Federal, State, county, and local agencies and other organizations and...Lead, zinc, and silver ••.•.•••........•..•.•.•. Copper and molybdenum ......•...•.•.•.•••.. Iron •..•...studies •.•••••••..••.••.••••• Precambrian rocks in Colorado .•.••.•••.••••..• SanJuan Mountains, Colo. • •••••••...geophysical, and mineral-resource studies-Con. Basin and Range region •...••••.•.•.•...••.•...•. Pacific...•.• Arizona .•••.••••••.••.•.•.•.•..••••.•...• Colorado ••••••••••.•••••••••••.•.•..••..• 71 72 72 72 |
 | | Report (volume) |
| 133 COPPER: Copper deposits near Superior, Ariz., by F. L. Bansome.................. Copper deposits...the White Mesa district, Ariz., by J. M. Hill............ Survey publications on copper.................the Dome district, Idaho, by J. B. Umpleby.... The Yellow Pine mining district, Clark County, Nev., by...Page. Notes on the Quaternary lakes of the Great Basin, with special reference to the deposition of potash...sulphate in the Carrizo Plain, San Luis Obispo County, Cal., by U.S. Gale........................... |
 | | Report (volume) |
| Director Bulletin 842 OF THE GREATER HELENA MINING REGION MONTANA BY J. T. PARDEE and F. C. SCHRADER...______________________-__-_________--_------___-_ Ophir district.________________________________________________...__________---__--_-___ Austin district._.____..._..._._.____._____.____.___-.___._____ Marysville district.___________...___________________________________________ Gould district._______________________________________________ Stemple...._ Heddleston district.___________________________________________ Wolf Creek district.._..........__ |
