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| MINERAL AND ENERGY RESOURCE ASSESSMENT OF THE HELENA NATIONAL FOREST, WEST-CENTRAL MONTANA Edited by...Ludington2 , and A.E. McCafferty1 Open-File Report 96-683-A This report is preliminary and has not been... or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government... MINERAL AND ENERGY RESOURCE ASSESSMENT OF THE HELENA NATIONAL FOREST, WEST-CENTRAL MONTANA U.S. GEOLOGICAL...west-central Montana. It lies in the vicinity of Helena, the capitol city of Montana, and includes Federal |
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| OF THE UNITED STATES COMPILED BY SAMUEL SANFORD AND RALPH W. STONE WASHINGTON GOVERNMENT PRINTING OFFICE...OF THE UNITED STATES. Compiled by SAMUEL SANFORD and RALPH W. STONE. INTRODUCTION. By EDWARD W. PARKEH...Resources of the United States" (the volumes for 1882 and 1887) consist of lists of the useful minerals in...$2,000,000,000, and the investigations made by the United States Geological Survey and the State geological...minerals and includes a glossary showing the composition and character of each mineral and the location |
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| STATES**-^ COMPILED BY FRANK C. SCHRADER, RALPH W. STONE AND SAMUEL SANFORD A revision of Bulletin 585 WASHINGTON.......................................... 102 District of Columbia ......................................... 139 144 146 153 158 163 169 . 172 174 Montana........................................................................................ Glossary and index.............................................. Compiled by FRANK C. SCHRADER, EALPH W. STONE, and SAMUEL SANFORD. INTRODUCTION. The volumes of the |
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| Geology and Mineral Deposits of the Jefferson City Quadrangland Lewis and Clark Counties...Counties, Montana By GEORGE E. BECRAFT, DARRELL M. PINCKNEY, and SAl\II ROSENBLUM GEOLOGICAL SURVEY PROFESSIONAL...1922Geology and mineral deposits of the Jefferson City quadrangl~, ·Jefferson and Lewis and Clark Counties...Montarra, by George E. Becraft, Darrell M. Pinckney, and S·am Rosenblum. vVashington, U.S. Govt. Print. Off...1922Geology and minerai deposits of the Jefferson City quadrangle, J e:fferson and Lewis and Cl ark Counties |
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| 842 OF THE GREATER HELENA MINING REGION MONTANA BY J. T. PARDEE and F. C. SCHRADER UNITED STATES..._.....________-__-__-.___-_-----------_-__ Area and field work.__-.-.________-___-__-___.-_----_-----__-Arrangement...____________________________________ Topography and geology.-__-__-____--.-___-_-_-.----------__._ Ore...work..__.......__._____________.____ 8 History and production._________-;.-___-__---__-_-_-_-__---____...(Algonkian)._______________________________ Paleozoic and Mesozoic rocks--______.______-.__.._.____ Tertiary |
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| I. ILatah I , Moscow r i: IN;;z • Perc~~ r-, Lewis ~ r:': Downloaded by [University Library Utrecht]...specimens, are either inaccessible or are in closed mining districts, or are closed for political reasons...collecting trips but simply a reference and listing of localities and the minerals that have been found in...Jerome I i,J--..s.. ,c., --1. I Blaine '-\ [ Clark,-J t: _Buue-J Ketchum Camas '-; :-.... J. •...City-D~Lamar Mining Dlstricts / J\. I,' -r-, - L..... ~ rl.. kl \ , 50 I 100 I Miles old mining and |
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| Georgia Beginning in the northwest, where the Lookout and Sand mountains loom over rich agricultural valleys... each one formed during different geologic ages and under varied conditions: the Cumberland Plateau,...Mountains, the Piedmont Plain (about 30% of the state), and the Atlantic Coastal Plain. Thus rocks of every geological...rocks in the East, both igneous and metamorphic, strongly mineralized and dotted with once-rich abandoned...from the Piedmont crystalline rocks into softer and less resistant formations of the Coastal Plain. This |
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| researchers at National Laboratories, government agencies and post-docs wishing to study the terrestrial equivalent...rover had collected and analyzed samples along its route, identifying different strata and mineral environments...on-board chemistry and mineralogy device (CheMin) included an X-ray diffractometer and X-ray Fluorescence...Fluorescence detector for structure and chemistry determination of samples. (Continued on page 2) Figure 1 – Several... mica and quartz. The SRM consists of 60 grams of air-dried and ball-milled powdered clay and helps determine |
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| Mineralogic and Grade-Tonnage Information on Low-Sulfide Au-Quartz Veins by James D. Bliss and Gail M....preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic........................................ 1 Grade and tonnage models........................................................... 3 Frequency, abundance and grouping of sulfides................. 4 Non-sulfides........ 81 INTRODUCTION Data on grade, tonnages and mineralogy of deposits classifed as lowsulfide Au-quartz |
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| Districts of the United States By A. H. KOSCHMANN and M. H. BERGENDAHL GEOLOGICAL SURVEY PROFESSIONAL...description of the geology, mining history, and production of the major gold-mining districts in 21 States...----------------Scope and objectives -------------------------1\uthorship and acknowledgments -------------Distribution...relations ---------------------------History of gold mining and trends in production_ J\labama -------------...--------------Cleburne County ----------~----------------- Tallapoosa County --------------------------Alaska |
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| Prairie State, Illinois exhibits a length of 378 miles and a width of 210 miles, with its 56,000 sq. mi. sloping...circumference by navigable waters, primarily the Ohio and Mississippi rivers. The highest elevations are the...offer gem and mineral collectors, even though the state produces more sandstone, silica sand and Fluorspar...Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...Wisconsin glaciation, the bluffs and detritus of the Ohio and Mississippi rivers, and in the southern Fluorspar |
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| Prairie State, Illinois exhibits a length of 378 miles and a width of 210 miles, with its 56,000 sq. mi. sloping...circumference by navigable waters, primarily the Ohio and Mississippi rivers. The highest elevations are the...offer gem and mineral collectors, even though the state produces more sandstone, silica sand and Fluorspar...Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...Wisconsin glaciation, the bluffs and detritus of the Ohio and Mississippi rivers, and in the southern Fluorspar |
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| Contrast of vein and alteration products ................................ Nature and origin of hydrothermalsolutions...changes, however, are varied and some rocks becomedark colored,others dense and impervious. Changesin mineralogyare...mineralgroupsformedby hydrothermalalteration comprises68 names and doubtlesswill be ex- panded as research continues...potassium,sodium,calcium,magnesium, boron,fluorine,and soon are introducedinto the rocksor transferredfrom...naturally dependon the composition of the wall-rock and of the solutionswith changesin the solutions duringthe |
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| 00 Cryptomelane Discovered at the Roxbury Iron Mine, Roxbury, Connecticut Tony Nikischer tony@excaliburmineral...from the classic locality of the Roxbury Iron Mine, Mine Hill, Roxbury, Litchfield Co., Connecticut has...scattered in voids in quartz seams (see figure 1), and it has been analytically confirmed via Energy Dispersive...morphology resembles the material found at the Clara Mine in Germany. The Roxbury specimen was collected about...collected about 30 years ago at the Roxbury Iron Mine. I originally picked it up because I had some good |
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| ECONOMIC GEOLOGY AND BULLETIN OF ECONOMIC VoL. 52 THE THE SOCIETY OF GEOLOGISTS No. NOVEMBER...McKINSTRY ABSTRACT The amountsof iron in fresh rocks and their altered equivalentshave been comparedby recalculatingmany...planned samplingas carried out in Butte, Yellowknife and a very few other districts is neededelsewherebef...beena matter of commentbut as mostpresentations and discussions of com739 ?40 HUGH McKINSTRY parativeanalyses...ironcontent, conventionally reportedas Fe•.Oa,FeO, and sometimes FeS2into total iron computedas Fe. Estimates |
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| been found in Missouri; two of these, fletcherite and starkeyite, were first described from Missouri mines...example, minerals known solely from drill cores and those known microscopically as rock-forming minerals...according to accepted names as given by Fleischer and Mandarin0 (1995). Localities are listed alphabetically...are in lowercase type. Latitude and longitude in degrees, minutes, and seconds for each precisely defined...location a~ included at the end of each entry. Adair County Chariton River (40-04-05N 92-4 I -23W). septarian |
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| 110,540 square miles, contains both sedimentary and igneous rocks of every geological age from Precambrian...The range of minerals found in mines, quarries, and prospect pits is great, with many minerals new to...well-known and collected localities, such as Majuba Hill. Many other localities with extensive and unusual...min370 ROCKS 6 MINERALS erals have been identified, and more will undoubtedly be characterized in the future...as a start in cataloging the variety of species and numerous localities. It is not intended to be comprehensive-that |
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| Sunday 12-5 [evenings by appointm ent only] Wayne and Dona Leicht, 302 Forest Ave. #0 Laguna Beach, Cal... Famous mineral localities: the Home Sweet Home mine ..................................................batholith ............................373 by E. E. Foord and R. F. Martin Mineral collecting at the Sunnyside...quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by...by John Muntyan. $13 per year, domestic and foreign. Personal checks in foreign currency accepted, but |
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| Guide to MINES and MINERALS " How and Where A ,-A 1 to Find Valuable Ores and Minerals in the... $ 5.95 and quickly informative.”— “Practical Virginia Kirkus RANGE GUIDE TO MINES AND MINERALS A...over a valuable nugget and stake your own mining claim? Indeed it to is, and author book Jay in this...is in abandoned mining districts, where valuable mineral ores are present and man generally absent...largest— and locates the important commercial ores and secondary minerals by state, county, township |
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| BULLETIN 527 ORE DEPOSITS OF THE HELENA MINING REGION MONTANA BY ADOLPH KNOPF WASHINGTON GOVERNMENT............................ Historical sketch of mining...................................................................................... Field work and acknowledgments............................................................ ............ Character and distribution of the rocks................................................................ Cambrian and Devonian systems................................ |
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| Wilderness Study Area, Montana A cooperative study by the U.S. Geological Survey and the U.S. Bureau of...preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey standards and nomenclature...»- - - - - - - - - - - - Present investigation and acknowledgments s G n L xn^ - « - - - - »- - - -... 38 - 3-D 1 O R X *j *J ju < Anomalies 13 and 14 i/ I M JL.,' 36 - Anomaly 11 ATlOmcl.Ly I...Interpretation of aeromagnetic anomalies Anomalies 1, 2, and 3 A XI OHldl jr I I .L..I. 14 15 15 Structural |
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| EUREKA! Self-Collected Minerals A Supplement to The Mineralogical Record, May-June 2022 EUREKA! U...Self-Collected Minerals V With an Introduction and Epilog by Wendell Wilson A Supplement to the Mineralogical...Mineralogical Record, May- June 2022 EUREKA! Self-Collected Minerals A Supplement to The Mineralogical...Scovil photo. Vanadinite, 2.4 cm, from the Apache mine, Arizona. Collected by Evan Jones; Jeff Scovil photo...Miglioli photo. Fluorite, 7.4 cm, from the La Barre mine, France. Collected by Aubin Cosson; Niels Brouwer |
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| Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU OF MINES Special Publication 31 in association...of Mines and Geology Special Publication 31 University of Nevada Press, Reno, Nevada 89557 USA Copyright...Weissman, and Sugar White copyright © 2004 unless otherwise noted Map of Mining Districts and significant...occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved Manufactured in the...B. Castor and Gregory C. Ferdock.— Ist ed. p. cm. Includes bibliographical references and index. ISBN |
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| in the United StatesIts Characteristics, Origin, and Economic Significance By T. G. LOVERING GEOLOGICAL...limestone or dolomite. It is a useful ore guide in many mining districts UNITED STATES GOVERNMENT PRINTING OFFICE.......................................... Purpose and scope of the investigation ............................................................... Density and porosity ................................................................................ Solution and transportation of silica ....................... |
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| MINERALS AND MIN ERAL LO CALITI ES OF UTAH by Kenneth C. Bullock UTAH GEOLOGICAL AND MINERAL SURVEY...RESOURCES BULLETIN 117 JANUARY 1981 MINERALS AND MINERAL LOCALITIES OF UTAH by Kenneth C. Bullock... . . . . . . . . . . 1 Chapter I. Mining Districts of Counties and the State of Utah. . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . 1 Chapter II. Mining Districts of Utah . . . . . . . . . . . . . . |
