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| studies are brought together in this paper. The district is one of peculiar interest,, having a complicated...practical benefit in developing the industry in this district. Very respectfully, C. W. HATES, Geologist in........... Location and general features of the district................................................................................ 75 Northeast-southwest faults..........................................geologic map of the Kentucky-Illinois fluorite district, showing its general relations to surrounding |
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| for each precisely defined lacality or center of an area are included in parentheses. A few of the most...about 2 miles north of the Macon county line. CALCITE crystals enclosing bundles of acicular and minute...Creek, northwest of Rockville in coal deposits: CALCITE as both brown and white crystals (Broadhead 1894)...Platte County and throughout the county: ARAGONITE,CALCITE, CELESTITE. PYRITE, SPHALERITE (Broadhead 1873b:...Boone County Adrlan’s quarry (38-40-23N 092-13-54W), an agricultural and road limestone quarry between Ashland |
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| to addressing these as it prepares for the future. An extensive consultation exercise is being launched...have your feedback. Forty years ago the UK still had an active metalliferous mining industry, predominantly...the Pennines was flourishing. The latter came to an abrupt end in the 1980s, and in these areas there...Gill Mine worked a number of veins in the north face of Iron Crag, of which the Roughton Gill South Vein...head of the Dale Beck Valley in the Caldbeck Fells of the northern Lake District and include workings |
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| Beyerite. Limonite and manganeseoxide. . . Kaolinite. Calcite and chalcedony. Descriptions of selected deposits...l|-inch vugs were noted in the Van Buskirk deposit. Calcite, kaolinite, limonite, and manganeseoxide are the...Chrysocolla Beyerite Bismutite Limonite Manganese oxide Calcite Kaolinite Chalcedony oF MTNDRALs Quartz Quartz...Microcline is altered to sericite, kaolinite, or calcite. Replacement commonly proceeds outward from along... some of the microcline at the Meyers Quarry has an unusual "cross ripple," which consists of minute |
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| . . . . . . . . . . . . . . . . Future of the district .......................... _. . . . . . . . ...._..... __ ................ 10 ../ A, San Pedro Valley and the Ht?-achuca Range from th Mule Mountains;...showing outliers of Cretaceous I strata resting upon an even surface of erosion; B, Glance conglomerate resting...faults, cutting Paleozoic limestones, on the southwest slope of Escabrosa Ridge, north of Moore Gulch;..._.. _.... ___ .. XVIII. A, Dikes in schist on southwest slope of Escabrosa Ridge; B, Probable volcanic |
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| Prescott to Poland Junction. Pat O'Hara will present an overview of the regional geology surrounding the...small vein deposits in the Eureka metallic mineral district (Keith, Gest and others, 1983; Keith, Schnabel...and others, 1983), a Laramide copper porphyry district having peripheral base- and precious-metal-rich...flows of the Dick Rhyolite. Silver (1968) determined an age for the metarhyolite of 1720+ 15 Ma. A similar-appearing...similar-appearing rhyolite in the Poachie Range, southwest of Bagdad (Bryant and Wooden, 1986) is 1709+8 Ma |
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| Geologists and Collectors , NOVEMBER, 1946 35c 1946 AN INVITATION Anyone interested in minerals is cordially...HI At n I II If I'l II Ill 11• I GE Cl I am regularly open on Tuesdays, Thursdays and Saturdays...p.m. (or later by appointment ) . On other days I am usually here, but give me a call beforehand to make...MINERALS OF THE FREDERICKTOWN, MISSOURI, MINING DISTRICT By Albert L . Kid111eli ................................................... 767 A MOUNTAIN OF CALCITE IN CALIFORNIA. By T. 0 . L. ·················· |
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| veins Origin of the shoots Milling High Grade district, Modoc County, Cal Location History of mining...replacements in glassy rhyolite Future of the district Winters district, Modoc County, Cal Location and accessibility...64 Future of the districts 64 Battle Mountain district, Lander County, Nev 2 Location and accessibility... Mining districts—Continued. Battle Mountain district, Lander County, Nev.—Continued. Geology—Continued...deposits 2 Properties at north end of Battle Mountain district, including Cottonwood Canyon, Licking Canyon, |
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| district____ 53 Lithologic character in Iliamna Lake district-.___ 56 Age and correlation_________^__ ____ 58...structure section from mountains east of Chekok Valley to hills west of Sixmile Lake ______ 105 8 ILLUSTRATIONS...map showing geographic relation of the Mulchatna district to the neighboring regions__________________ ...gold lode prospects have been found within the district, some of which may prove to have commercial value...in greenstones or in granites. This report covers an area lying between the Mount McKinley region on the |
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| occurs in quartz monzonite at the California mine southwest of Mount Antero. Mineralogical study shows that...during the deposition of molybdenite. Brannerite, an oxide of titanium and uranium, was identified in...Colorado, on the west side of the Arkansas River valley about 15 miles northwest of Salida and 100 miles...area. west of Denver (fig. 26). Mount Antero has an altitude of 14,245 feet and is a few hundred feet...and offers an approach from the north. The other trails start from the Arkansas River valley and enter |
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| features and mineral resources of an area in the Missouri River valley where a power dam is being built...River :flows northwest across the quadrangle, and an old dam at Canyon Ferry impounds a lake 6 miles long...the river from the northeast, and one from the southwest, are perennial; all the others are intermittent...though not a principal watershed, bound the valley on its southwest side. Prominent river-cut terraces at several...Helena limestone, all belonging to the Belt series. An unknown thickness of overlying Belt rocks has been |
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| Geologist C. A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...J. C. District Mining Engineer District Mining Engineer Mining Engineer O'Brien, District Mining...Mining Engineer George John District Sampson, Assistant Chas. V. Averill, Mining Engineer L. Gary,...Mines, by Walter W. Bradley SAN FRANCISCO FIELD DISTRICT Mines and mineral resources of 7 11 Santa...San Francisco Field District, by C. McK. Laizure 53 LOS ANGELES FIELD DISTRICT 58 Current notes on |
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| claim___________-________-----_-___--______ 46 Peeples Valley mine______________________________________ 47 Yuma...prospect, Ruby district _ _ _ 12. Geologic sections, Annie Laurie prospect, Ruby district 13. Map of part...northern half of Mohave County. Granger and Eaup made an extensive study of deposits in the Dripping Spring...Steven Malloy, LaMar Evans, and others at the Southwest Experimental Station of the U.S. Bureau of Mines...the description of any deposit is not necessarily an indication of its relative economic importance. Deposits |
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| ORES. THE CLINTON OR RED ORES OF THE BIRMINGHAM DISTRICT, ALABAMA. By ERNEST F. BUUCHARD. INTRODUCTION...Detailed work on the iron ores of the Birmingham district was carried on in the summer of 1906, continuing... Eckel in the fall of 1905. By the Birmingham district is meant the area from which the furnaces at Birmingham...industry of the Birmingham district, is now in preparation, this paper presents only an outline of the principal...course of the survey. The brown ores used in the district come mainly from the vicinity of Woodstock. These |
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| ago, nineteen members of the Thomas family staged an art and design exhibition ranging from Jaguar car... philosophy and pedantry both enter the ring, as an article in the New Scientist (22 Feb. 2003, p.28)...agree on. REVIEW Geology of the Loughborough district, by J N Carney, K Ambrose and A Brandon, 2002...welcome leap forward. The explanation booklet is an excellent, concise, authoritative, well-illustrated...show early stages in the evolution of the Trent valley. The Quaternary correlation chart meets the inevitable |
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| Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...lived in the area all his life. He left school at an early age and started work on the family farm, but...something had irked him he’d pay me a visit just to start an argument and let off some steam. I gradually lost...California and eventually served as its President. He was an enthusiastic field collector and a gregarious and...what was previously known as the Saint-Michel district, and is now part of the Arrondissement de Vil |
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| already. The occasional faceted stone will show up in an illustration here and there, but we are still the...localities: the Himalaya dike system, Mesa Grande district, California (by E. E. Foord) [1977, vol. 8, no...three-dimensional model of a tourmaline crystal, an impossible tourmaline crystal that is, zoned with...with a dif ferent tourmaline color on each face! A Special Thanks to our Anonymous Donor from Georgia...702-883-2598 Affiliated with the Friends of Mineralogy, an independent, non-profit organization devoted to furthering |
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| write to the Geological Survey in Washin.rton for an official mailing label to usc in returning it UNITED..._ _ _ _ 49 14. Gold placers and lodes in the southwest part of the Morganton quadrangle, N. C ___ .:_...____________________ Inpock~t 34. A, Northwest joint face, Brewer pit , Brewer gold mine, Chesterfield County... Detailed sketch of small fault in l;>ack of southwest stope, 220-foot level, Melville mine, Orange County...--------------;. 20. Cross section of valley cont aining older (terrace) and younger (valley) alluvial placer deposits |
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| taken from Privateer camp, looking northeasterly up valley of the Zeballos River. Plate I-B. View upSpud...Creek showing Privateer camp in foreground and Spud Valley camp in background;Mount Zeballos camp just around...taken from Privateer camp, looking northeasterly up valley of the Zeballos River ...........................Creek showing Privateer camp in foreground and Spud Valley camp in background; Mount Zeballos camp just around...~~~~~~.~ ....... ..... 58 ~~ ~~~~~~~ XIV. Spud Valley mine camp-portal of No. 7 level a t dump, lower |
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| (Cretaceous) , Gabbroic rocks Granitic rocks Green Valley _. tonalite Lakeview Mountain tonalite Lake...49 49 50 50 51 Bismuth 51 Boron Bromine 51 Calcite (optical grade) Hilton deposit Cesium Clay,...88 88 88 89 89 district Mesa Grande district __ Ramona district Rincon _ district Other areas Miscellaneous...96 96 97 97 115 116 . _ Gold District summaries Julian district Escondido region Mesa Grande ... Dulzura 121 121 district (Rice) district Ballena placer deposits Additional gold mines Boulder Creek |
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| "Eggshell Diagenesis'' and Primary Radial Fabric in Calcite Oo1ds . . . . . . . . . . . . . . . . . . . . ...examples. I use the closed basin as my model because I am most familiar with that form and because it is the...100 m to 5000 m. I must also define what scale I am using in a stratigraphic sense. The contemporary...size of the receiving region gives the effect of an infinitely large basin into which the sediment prism...Modelling Sedimentary Dep osits Several years ago in an earlier SEPM Presidential Address, Sloss (1962) defined |
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| ILLUSTRATIONS PLATE 11. Geologic map of Willow Creek district._______-_----__-__-_ 12. A, Chalcopyrite-molybdenite...pegmatite dike on Holland property, on eastern valley wall of upper Purches Creek_____________________...the Geological Survey, but funds to carry through an extensive inquiry of this sort had not been available...mixed sulphides (the Eureka area in the Kantishna district, Mount Eielson, formerly known as Copper Mountain...Actually none of the mines have been developed to such an extent as to furnish all of the evidence desired |
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| properties based partly or entirely on earlier reports. An introductory section on production, consumption,......... .... ..... .... .... .... ... . Kenora district (Patricia portion) .... ... .... . Red Lake area... .. .. .. .... .. .... .. ...... ... . Kenora district...................... .... .. ............. ..... .. ... .... .. .. .. .. .. .... Rainy River district..... .. ..... .... ..... .. ........ . .. ....... .. ........ . ...... . Thunder Bay district. .... .. ... ..... ........ .... ... ... .... .. .. .. |
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| . _______ . ___ ._.-, __ · 10 2. Northeast-southwest section through the northern summit of Barnes...section from the summit · of the Apache Mountains southwest to Richmond Basin __ . _____________________...Granite Basin to Whitetail Gulch, along northeast-southwest ridge. The line of the section passes half a...-I GEOLOGY OF THE GLOBE I COPP~R By F. L. DISTRICT, ARIZONA. I RAN1ME. INTRODUCTION AND ACKNOWLEDGlUENTS...ACKNOWLEDGlUENTS. II The investigation of the Globe district as begun early in the summer of 1901, a month |
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| OF THE INTERIOR GEOLOGY OF THE HANOVER-YORK DISTRICT PENNSYLVANIA GEOLOGICAL SURVEY PROFESSIONAL PAPER...Chloritoid-muscovite-quartz schist, from Hoffacker Valley; C, Banded chlorite-muscovite-quartz schist, half..._---_--__---_--__ 17. Map of the Hanover-York district and adjacent region, showing major structural...Maryland, showing location of the Hanover-York district. ____________________________________________...north of the Martic overthrust in the Hanover-York district.________ 4. Geologic map of gorge of Codorus Creek |
