 | | Report (volume) | | 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 |  | | Report (issue) | | 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 |  | | Book (volume) | | 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 |  | | Report (volume) | | Canyon Ferry Quadrangle, Montana By JOHN B. MERTIE, JR., RICHARD P. FISCHER, and S. WARREN HOBBS GEOLOGICAL...GEOLOGICAL SURVEY BULLETIN 972 The geologic features and mineral resources of an area in the Missouri River..._____________________ ,._____________________ Vegetation and animal life---------------------------------~---...Pilgrim limestone___ _______________________________ Dry Creek shale ________________________ ·___________..._______ Monzonitic and granitic intrusives___________________________ Felsic and mafic differentiate |  | | Report (issue) | | 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 |  | | Book (volume) | | 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 |  | | Book (volume) | | 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 |  | | Book | | 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 |  | | Report (volume) | | Basin Quadrangle Jefferson, Lewis and Clark, and Powell Counties, Montana By EDWARD T. RUPPEL GEOLOGICAL...Basin quadrangle, Jefferson, Leis and Clark, and Powell Counties, Montana. Washington, U.S. Govt. Print....119-121. 1. Geology Montana Basin quadrangle. 2. Mines and mineral resources Montana Basin quadrangle.... I. Title: Basin quadrangle. Montana. (Series) For sale by the Superintendent of Documents, U.S. Government..._____ Location and access___-___--___-__-___---__-__--___--____--____ Topography and drainage.______ |  | Geraldes, M. C., De Abreu, G. C., Pires, P. R., Mello, E. F., Iyer, S. S. (2006) Sulfur Isotope Characteristics of Mesothermal Gold Deposits: Results of an Investigation of the Rio Itapicuru Region, Bahia, Brazil. International Geology Review, 48 (5) 410-419 doi:10.2747/0020-6814.48.5.410 | Journal (article/letter/editorial) | | Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office:...Publication details, including instructions for authors and subscription information: http://www.tandfonline...platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties...opinions and views expressed in this publication are the opinions and views of the authors, and are not...relied upon and should be independently verified with primary sources of information. Taylor and Francis |  | | Journal (article/letter/editorial) | | 1322-1328 THE GOLDEN MESSENGER GEOLOGIC AND MINE, YORK DISTRICT, ISOTOPIC MONTANA: CONSTRAINTS...IAN M. LANGE, Geology Department, University of Montana,Missoula, Montana59812 H. Roy KROUSE, Departnwnt...Physics, University of Calgary,Alberta,CanadaT2N 1N4 AND LEE A. WOODWARD Department of Geology, University...Hattori, 1987) and the Golden Mile (Fig.1). Minimumnorth-south separation onthe thrustis mine,Kalgoorlie...1989).The ScoutCampthrustsheetis overlain -17.5 and -3.1 to -9.6 per rail, respectively, mostgold bytheEldorado |  | | Journal (volume) | | JANUARY, 1937 No. 1 CALIFORNIA JOURNAL OF MINES AND GEOLOGY QUARTERLY CHAPTER OF STATE MINERALOGIST'S...CALIFORNIA UAfi^tWRAI DIVISION OF MINES EXECUTIVE AND TECHNICAL STAFF WALTER W. BRADLEY State Mineralogist...Geologist C. A. Logan, District Mining Engineer O. McK. Laizure, District W. Burling Tucker, Reid...Sacramento San Francisco Mining Engineer District Sampson, Assistant Mining Engineer Los Angeles Los...Los Angeles District Engineer Chas. V. Averell, District Mining Engineer Frank Sanborn, Mineral John |  | | Report (volume) | | the direction of E.W. PEHRSON, Chit#' Econolllics and Statistics B;fuch H. D. KEISER, Editor UNITED STATES...superior ttrmnment and munitions; but the experience of Finland, Belgium; Greece, and others has revealed...manganese, aluminum., and petroleum utilized in tanks and airplimes, bullets and bombs. l t is not surprising...been placed upon the problems of minern,l supply and that in 1940 the 11ctivities of the Bureau of Mines...BurNtu have contributed to the defense effort. Fo.cts and figures were the first requirement of the agencies |  | Geraldes, M. C., Tassinari, C. C. G., Babinski, M., Martinelli, C. D., Iyer, S. S., Barboza, E. S., Pinho, F. E. C., Onoe, A. T. (2008) Isotopic Evidence for the Late Brasiliano (500-550 Ma) Ore-Forming Mineralization of the Araés Gold Deposit, Brazil. International Geology Review, 50 (2) 177-190 doi:10.2747/0020-6814.50.2.177 | Journal (article/letter/editorial) | | Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office:...Publication details, including instructions for authors and subscription information: http://www.tandfonline...platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties...opinions and views expressed in this publication are the opinions and views of the authors, and are not...relied upon and should be independently verified with primary sources of information. Taylor and Francis |  | Carrier, A., Jebrak, M., Angelier, J., Holyland, P. (2000) The Silidor Deposit, Rouyn-Noranda District, Abitibi Belt:Geology, Structural Evolution, and Paleostress Modeling of an Au QuartzVein-Type Deposit in an Archean Trondhjemite. Economic Geology, 95 (5) 1049-1065 doi:10.2113/gsecongeo.95.5.1049 | Journal (article/letter/editorial) | | Deposit, Rouyn-Noranda District, Abitibi Belt: Geology, Structural Evolution, and Paleostress Modeling...Marie Curie, 4 place Jussieu, 75252 Paris 05, France AND PETER HOLYLAND Terra Sancta Inc., 48 Peoples Avenue...quartz vein deposits within the Rouyn-Noranda mining district occur mainly within Archean tonalitic plutons...gold deposit. The Silidor mine contained 2.95 million tons (Mt; mined and estimated reserves), grading...900 m in length and has a vertical extent of 900 m, an average thickness of 3.5 m, and trends northwest-southeast |
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