 | | Journal (article/letter/editorial) | | “up” Cane Branch near Burnsville in Yancey County, North Carolina. His lean and sinewy frame suggested...five to ten miles over the hills to a prospect or mine, labor until dark, and then walk home, only to repeat...afterward. In fact, hardly any roads existed in Yancey County in those days, only well-worn foot trails. No...began his career driving steel in a local pegmatite mine for ten cents an hour. He soon moved up to a higher-paying...higher-paying job of hand-cobbing feldspar for the Bowditch Feldspar mine. This work required separating the spar |  | | Book | | MINES MINERS MINERALS AND OF WESTERN NORTH CAROLINA Western North Carolina’s Hidden Mineralogical Treasures...E L L 2005 PARKWAY PUBLISHERS, INC. Boone, North Carolina Copyright ©1999 Lowell Presnell All Rights...Mines, miners, and minerals of western North Carolina : western North Carolina’s hidden mineralogical treasures...(hard cover) 1. Mines and mineral resources—North Carolina—History. I. Title. TN24.N8P74 2005 338.4‚7622‚09756—dc22...Domestic Mica Buying Policy 111 20. Western North Carolina & the War Years .119 21. The Mineral Kingdom |  | | Report (issue) | | t'ljLf c 2 North Carolina State ttbraJK N.Ob Raleigh DOC NORTH CAROLINA DEPARTMENT OF CONSERVATION...KAOLIN DEPOSITS OF THE SPRUCE PINE DISTRICT, NORTH CAROLINA BY JOHN M. PARKER III PREPARED BY GEOLOGICAL...WITH THE NORTH CAROLINA DEPARTMENT OF CONSERVATION AND DEVELOPMENT RALEIGH 1946 NORTH CAROLINA DEPARTMENT...KAOLIN DEPOSITS OF THE SPRUCE PINE DISTRICT, NORTH CAROLINA BY JOHN M. PARKER III PREPARED BY GEOLOGICAL...DEPARTMENT OF THE INTERIOR IN COOPERATION WITH THE NORTH CAROLINA DEPARTMENT OF CONSERVATION AND DEVELOPMENT |  | | Report (issue) | | c C.2 NORTH CAROLINA DEPARTMENT OF CONSERVATION AND DEVELOPMENT GEORGE R. ROSS, DIRECTOR DIVISION OF...BULLETIN NUMBER 66 THE SCRAP MICA RESOURCES of NORTH CAROLINA BY SAM D. BROADHURST AND LEWIS J. HASH PREPARED...TENNESSEE VALLEY AUTHORITY RALEIGH 1953 NORTH CAROLINA DEPARTMENT OF CONSERVATION AND DEVELOPMENT...BULLETIN NUMBER 66 THE SCRAP MICA RESOURCES of NORTH CAROLINA By SAM D. BROADHURST and LEWIS J. HASH PREPARED...Raleigh, North Carolina March 25, 1953 To His Excellency, HONORABLE WM. B. UMSTEAD Governor of North Carolina |  | | Report (issue) | | Mica Deposits of the Blue Ridge in North Carolina GEOLOGICAL SURVEY PROFESSIONAL PAPER 577 Work done...done in part in cooperation with the North Carolina Department of Conservation and Development and in part...Administration Mica Deposits of the Blue Ridge in North Carolina By FRANK G. LESURE GEOLOGICAL SURVEY PROFESSIONAL... Work done in part in cooperation with the North Carolina Department of Conservation and Development... Geologic map of part of the Blue Ridge of North Carolina and Tennessee. 2-6. Maps showing location of |  | | Journal (article/letter/editorial) | | HYPOGENE AT CERRO DE PASCO. • AND SAMUEL I. BOWDITCH. OUTLINE. Introduction .......................PascoCopperCorporation. 651 652 L. C. GRATON AND SAMUEL I. BOWDITCH. nor successfullydefendedagainst every challengeuntil...of (mainly) non-brecciated -•McLaughlin,D. H., Bowditch,S. I., andothers:CopperResources of the World...5•6-527, •935- 654 L. C. GRATON AND SAMUEL I. BOWDITCH. quarfz-monzonite porphyry;and an irregular intrusivemassand...of plagio- 656 L. C. GRATON AND S.4MUEL I. BOWDITCH. clase(30-35% An), numerousplatesof dark biotite |  | | Journal (article/letter/editorial) | | This article was downloaded by: [North Carolina State University] On: 17 April 2015, At: 00:08 Publisher:...anyone is expressly forbidden. Downloaded by [North Carolina State University] at 00:08 17 April 2015 Terms...d petrogenetic significance Downloaded by [North Carolina State University] at 00:08 17 April 2015 VI...deposits (Sobolev and Fishkin, 1953; Graton and Bowditch, 1936) and in the solfatara fields of modern volcanoes...Kaolinite occurs as a product of replacement of plagioclase phenocrysts, subsequently undergoing replacement |  | | Journal (article/letter/editorial) | | 8–16 km south of the world famous Cerro de Pasco mine (Fig. 1). It contains one of the largest concentrations...subsequent multiple intrusion of porphyritic domes (Bowditch 1935; Lacy 1952). The diatreme-dome complexes...detrital sediments (Pocobamba Formation) to the north, and Triassic–Jurassic marine, nearly pure limestones...and Smelter (50 Mt, at 2% Cu) 3.5 km and 1.5 km north of Marcapunta respectively, and San Gregorio (70...extend continuously from Smelter for almost 4 km north to Colquijirca, where they virtually attain the |  | | Report (issue) | | ridges-__--_---------_----_-.-__---.Lavas underlying North Mountain._______ Lavas capping the ridge east of...montmorillonite-chlorite zone, showing partial alteration of plagioclase phenocrysts; C, Photomicrograph of a rock from...district._____________________ 2. View looking north across Wightman Fork from the top of South Mountain...___________________________ 10. A view looking north-northeast across Park Creek from a point near the...____________________ 12. Vertical projection of mine workings and stopes on the Tewksbury vein______ |  | | Journal (article/letter/editorial) | | complexenterprise,includingthe Goyllarisquizga coal mine, concentrating, smelting,and refiningfacilitiesand... III lists the various mineral districts from north to TABLE III OREDEPOSITS OF CEN'r•\LPERU{Cont'd)...Castrovi- rreyna (1) (2) (3) Arranged from north to south I II III I¾ A B C D - - 1000-5000 tons/day...epidoteand calcite,breakdownof orthoclase and plagioclase,kaolinization,sericitization,silicificationand...zonesmay be distinguishedfrom the deeperpart of the mine upwards and laterally, namely (1) magnetitechalcopyrite |  | | Journal (article/letter/editorial) | | de Pascodescribedmany years ago by Graton and Bowditch(19, p. 655). CHEMIC.4L .4SPECTS OF HYDROTHERM...dominantlyby the hydrolyricdecomposition of plagioclase, is illustratedby equations 14 and 15 of the...directconversion of plagioclase to sericitein partsof someporphyrycopperdeposits andthe alterationof plagioclase to sericitealongearly...For example, the hydrolytic decompositionof plagioclase,assuminga reversiblereactionsuchas that given...although these may representa later alteration. Plagioclase Rock IVlontmorillanita Alkali FeldsparRock possible |  | | Report (issue) | | small amount of gold and silver; the Castle Peak mine, which produced about 2,500 flasks of quicksilver;...bleached zone. DDH-1 and DDH-2, about 8 km (5 miles) north ofVirginia City, were drilled to confirm, if possible...and 17 km (4V2 and 101;2 miles), respectively, north of Virginia City, were drilled to investigate the...small amount of gold, and the Castle Peak mine, 10% km (6% mi) north of Virginia City, has been one of the...DDH-1 , DDH-2, and DDH-3 are about 8 km (5 mi) north of Virginia City, and DDH-4 is in the Washington |  | | Journal (article/letter/editorial) | | hydrothermal alteration seemed evident. In the Zuni mine kaolinite is also associ- ated with pyrite and...mineralsform mainlyby the alterationof feldspar. Plagioclase is particularlysusceptible to hydrothermal a...chalcopyrite,enargite and many other minerals. If mine openingsor drill samplesare availablefrom the hypogenezone...9. 7. Emmons, S. F., 1896, The mines of Custer County, Colorado: U.S. Geol. Survey. 17th Ann. Rept.,...Survey Prof. Paper 173. 10. Graton, L. C., and Bowditch, S. I., 1936, Alkaline and acid solutions in hypogenezoning |  | | Journal (article/letter/editorial) | | montmorillonitesfrom various argillic assemblages in 12 North and South American porphyry copperdeposits,and in...togetherwith lessdetailedinvestigations of several other North and South American porphyry copperdeposits. Also...magmaticwatersmay then be definedas vugs. Claysafter plagioclase are frequentlyphysical magmaticwatersthat haveI•Oxs-...immediatesampleenvironment.Thus it is impera- region of North America are meteoricand not con- tive that this...arounda compositeanalyzed. The locationsof the North American hypabyssal granodiorite stock(Fig. 1). |  | | Journal (article/letter/editorial) | | he'highAconquijaRange (Nevado del mostly of quartz-plagioclase-microcline and biotite. Candado,5,450 m). In...drainagesystems,the CampoArenal lowlands,tothe north and the Salar de Pipanacodepressionto the south...composedof conglomerates, sandstones, and found north and south .of the t•rend between the shales,with...gray rock with a "mottled" appearanceand of plagioclase-hornblende composition. The most significant...gray rocks,consistingof a feMc groundmasswith plagioclase,phenocrysts,and cummulatesof stronglyzoned andesine |  | | Journal (article/letter/editorial) | | tiny flakesof sericiteare scatteredthroughthe plagioclase phenocrysts along cracksand twinning planesin...quartz latite porphyry can be found in the San Jos• mine even far from veins without disseminated pyrite...the chloritearefoundreplaced by s,ricite. The plagioclase is replacedby sericiteand in manycasesonly outlinesof...rocksadjacentto the Oruro veins,particularlyin the Itos mine. Ahlfeld described some of the rock on the lower...certain areas,suchas the bottomlevelsof the Itos mine, is not sufficiently extensiveand inadvertentlymissedthe |  | | Report (issue) | | ____ Districts in Appalachia__________________ North Carolina_____________________ South Carolina_____________________...___________ Ne~ 1:ork_________________________ North Carolina__ _ ________ __ ______ __ Ohio________...Georgia_________________ Deposits in North Carolina__________ Deposits in South Carolina and Virginia____________________________...pinnacles beneath soil cover, Bluegrass, Highland County, Va_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...transverse joints cutting shale at Poverty, Highland County, V a_ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |  | | Journal (article/letter/editorial) | | Botany ; C. S. MINOT, Embryology, Histology ; H. P. BOWDITCH, Physiology ; J. S. BILLINGS, Hygiene ; WILLIAX...Danish ' Ingolf Expedition '; Currents i n the North Sea ;The Gulf Stream Drifl ;Hydrography and Faunas...has studied Clinton and Franklin Counties on the north ; and I have been busied with Essex, Warren, Washington...in Moriah township, Essex county; and in Thurman town- ship, Warren county, although the same rock is...we must omit the contact zones of St. Lawrence county. I n judging of the impurity of the limestones |  | | Journal (article/letter/editorial) | | Introduction THE Quiruvilca district is located in north-central Peru, 80 km east of the city of Trujillo...85 ø E-S 85 ø zonite porphyry stockexposed2.5 km north of the E faults (Lewis, 1956). district (not shown)...weakargillic dike intersected in drill core 75 m north of the Coco alteration(Fig. 9, Table 2). In additionto...Pervasive alteration type Magnetiteilmenite Plagioclase sites Intense Sericite Sericite, brown kaolinitc...kaolinRe, Brownkaolinitc, sericite,calcite, plagioclase*, +_clinozoisite, +_illitc Quartz, sericite |  | | Journal (article/letter/editorial) | | between Manilla, in Crawford County, and Coon Rapids, in Carroll County, Iowa [abstract and discus sion]...the oil-producing formations in the Paleozoic of North America [abstract] ; by AmadeusW. Grabau Revision...Virginia coal beds in Mingo County, West Virginia, with those of Letcher County, south eastern Kentucky.................................... 102 Types of North American Paleozoic oolites [abstract] ; by Francis...o o k G r e e n e , A. B., M. A., Geologist, 30 North Yorktown street, Tulsa, Oklahoma. F e r d in a n |  | | Book (volume) | | grading to 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils; |  | | Book (volume) | | grading to 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils; |  | | Book (volume) | | NORTInHIwo AME A Volumes John Sinkankas _ GEMSTONES OF NORTH AMERICA In Two Volumes ® Volume I Gemstones, of...of all the mineral treasures to be found in North America, are perhaps the most fascinating—and the...worthy of the name. Some, like the emeralds of North Carolina, the colorful and fabulous tourmalines and...above all, easily read and understood, GEMSTONES OF NORTH AMERICA, Volumes I and II, will be welcomed as a...abroad are becoming so scarce and expensive that North America has developed into a major exporter rather |  | | Journal (article/letter/editorial) | | potassium-silicate protore (Modoc dike system near the Leonard mine, (Brimhall, 1978, 1979). Analysis of the whole-rock...abundantmolybdeniteby structurecontoursgiven by mine level, approximately equalto the distance belowthe...present as economicconstraintson exploration and mine study attempts to isolate the most important development...concentration, i.e., those outlined earlier by Graton and Bowditch hydrolyric attack. Although isotopegeochemistryhas...argillic alteration was found to have converted plagioclase in this protore to kaolinite beforemodificationof |  | | Report (issue) | | 14 1. 2. 3. 4. 5. Asbestos ore Lead ore, Balmat mine, N. Y. Chromite-chromium ore, Washington Zinc ore...ore, Poncha Springs, Colo. 14. Tungsten ore. North Carolina World Nonbauxite Aluminum Resources Alunite...not yet discovered or not currently profitable to mine. The mining of mineral deposits, once discovered...——— Lincoln County _______________——— Clark County __________————————— Esmeralda County __—_______————...__—_______———— Mineral County _________________ Lyon County _______________———— Humboldt County ________________ |
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