 | | Journal (article/letter/editorial) | | and Rubidium-Strontium Geochronology at Ore Knob, North Carolina, and Ducktown, Tennessee PAUL D. FULLAGAR...upperPrecambrianAshe Formationwallrockof the Ore Knob, North Carolina, coppersulfidedeposithasan apparentRb-Sr...approximately 400 m.y.; Ashe Formation samplescollected 5 to 35 miles from Ore Knob do not define an isochron...Upper PrecambrianGreat Smoky Group samplesfrom the ore zone, wallrock and country rock of the Cherokeemine...the ore zone. Rubidiumand strontiumanalysesindicatethat Sr has been removedfrom and, at Ore Knob, Rb |  | | Journal (article/letter/editorial) | | THE ORE KNOB NORTH MASSIVE SULFIDE CAROLINA: AN RECRYSTALLIZED ARTHUR COPPER EXAMPLE ORE R....pyriteore replaceda fault zone in Precambrian Carolina Gneissof Keith (1). Closely following sulfide...and flow structuresare common. T• Ore Knob coppermine in Ashe County,N. C., openedin 1855,hashad a long...when 200,000 tons of ore was mined to produce12,500 tons of copper. Part of this ore was secondarilyenriched...Averagegradeof the primary ore is 2.22 percent copper. The ores of the Ore Knob mine show unusual mineralogicaIand |  | | Report (issue) | | Archean rocks. _ _______________________________ Carolina gneiss ____________________________ Roan gneiss... ___ ______________________ Geologic age of the ore bodies. __________________ Genetic history of the..._-________-__-----------Stratigraphic position of ore bodies...._____-_ Structural relations_____________--__-__-_-_...sulphides. Vein calcite and its relation to quartz._______ Replacement of plagioclase by calcite.._______ Hydrotherrnal...Hydrotherrnal vein minerals cut by calcite veinlets_.--.-_..-.--___---__-__-.__.--_ Character of the |  | | Report (issue) | | The Ore Knob Copper Deposit North Carolina, and Other Massive Sulfide Deposits of the Appalachians GEOLOGICAL...PROFESSIONAL PAPER 558 The Ore Knob Copper Deposit North Carolina, and Other Massive Sulfide Deposits...dynamic and thermal metamorphism on primary ore textures at Ore Knob are described^ and similar Appalachian...___________________________ Geology of the Ore Knob mine____________ Ore Knob mineral deposit_______________ General...____________________ Changes in wallrock along the ore zone. Brecciation. ____________________ Folding and |  | | Journal (article/letter/editorial) | | Economic Geology Vol. 74, 1979, pp. 645-656 Ore Mineralogyof theGreatGossan Lead,Virginia * DONALDK...closely spaceden echelon pods and lenses constitute ore zoneswhich are essentiallyconformableto foliafion...quartz-muscoviteand chlorite schist of the late Precambrian Ashe Formation and which range from less than one to...than 50 m in thicknessand up to 7.5 km in length. Ore mineralogyis dominatedby hexagonalpyrrhotite (•90%...a proposed thermal maximum of 415ø to 455øC, the ore assemblagewould have developeda sulfur activity of |  | | Report (volume) | | 'THE GEOLOGICAL vt- ,(231 > ' " ^THE MINERALS CAROLINA''" i '- OF, - :l|^fe^H - GOTEENMENT LIBRARY... W. Powell, director | | The | minerals of North Carolina | by | Frederick Augustus Geiitk | [Vignette]...J. W. Powell, director | | The | mineralsof North Carolina | by | Frederick Augustus Genth | [Vignette]...W. Powell, director | | The | :aainerals of North Carolina | by | FrederickAugustusGenth j [Vignette]...separately. Price $2.50. XVI. The Paleozoic Fishes of North America, by John Strong Newberry. 1889. 4°. 340 |  | | Book (edition) | | Geology of North Carolina. QE 147 .A22 1866-1887 Pt.2 V.2 Chap.1 Digitized by the Internet Archive...org/details/mineralsminerall01 nort n o o / Geology of North Carolina. CHAPTER I. MINERALOGY. BY It F. A. GENTH...brought to a Pi 7 ? f 3 : GEOLOGY OP NORTH CAROLINA. 2 many new and rare species. The Mica veins...within a few days , so that the list of North Carolina mineral species has been very considerably...crease of more than 25 per cent. GEOLOGY OE NORTH CAROLINA. 4 than has been discovered in any other |  | | Book (edition) | | LOCALITIES NORTH CAROLINA, BEING CHAPTER I, OP THE SECOND VOLUME OF THE GEOLOGY OF NORTH CAROLINA. Reprinted...OF E. M. UZZELL RALEIGH, N. C. GEOLOGY OF NORTH CHROLINS. CHAPTER I. MINERALOGY. BY It has F...data have been embodied. Sev- GEOLOGY OF NORTH CAROLINA. 4 eral causes have been operative in giving...matter of commercial interest. GEOLOGY OF NORTH CAROLINA. 6 Dr. C. L. Hunter has also kindly furnished...within a few days, so that the having been of North Carolina list mineral species has been very considerably |  | | Journal (article/letter/editorial) | | some massive sulfide deposits in Virginia, North Carolina and Tennessee* ARTHUR R. KINKEL JR., HERMAN...deposits of the southern Appalachians. that some ore bodies formed at least as early as the Grenville...enclosing gneiss and schist. Present textures of the ore were formed during subsequent metamorphic periods...to 330 m.y. ago. COPPER-BEARING massive sulfide ore deposits occur from Alabama in Precambrian paragneiss...schist, and metavolcanic province (Fig. 1). The ore bodies are essentially concordant / Virginia - |  | | Report (issue) | | IN NORTH CAROLINA INFORMATION CIRCULAR 29 DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES ...agencies for the general welfare of the dtizens of North Carolina. The Section conducts basic and applied research...Resources, at Post Office Box 27687, Raleigh, North Carolina 27611-7687, or call (919) 733-2423. Jeffrey...Chief Geologist GOLD NORTH CAROLINA IN . by P. Albert Carpenter III NORTH CAROLINA GEOLOGICAL SURVEY INFORMATION...INFORMATION CIRCULAR 29 STATE OF NORTH CAROLINA James B. Hunt, Jr., Governor DEPARTMENT OF ENVIRONMENT |  | | Report (volume) | | Geology of Some Copper Deposits in North Carolina Virginia, and Alabama By GILBERT H. ESPENSHADE CONTRIBUTIONS...mines, Swain County, North Carolina, the Toncrae mine, Virginia, and the Stone Hill mine, Alabama UNITED...___________ Deposits in Great Smoky ~ountains, North Carolina__________________ GeneralgeologY------...------------------------------Geology of Swain County copper district__________________________ Sedimentary...___ ___________________________________________ Ore deposits ________________________________ ---------_____ |  | | Journal (article/letter/editorial) | | large variety of minerals and gemstones in North Carolina annually attracts thousands of collectors to...the world. Some Mineral Collecting Sites in North Carolina T H E C O L L E C T I N G L O C A L I T I E...McKenzie's publication Mineral Collecting Sites in North Carolina: Information Circular 24 (1978). For a more...locations on county road maps, refer to this publication, which can be ordered from the North Carolina Department...27687, Raleigh, North Carolina 27611. The price is $5.00 plus 4% sales tax. Individual county road maps can |  | | Report (edition) | | Information Circular GOLD RESOURCES OF NORTH CAROLINA by P. A. Carpenter, D oc ms C% M:*L Raleigh...for the general welfare of the citizens of North Carolina. The section conducts a number of basic and...Geological Survey Section, P.O. Box 27687, Raleigh, North Carolina 26711. Jeffrey C. Reid Chief Geologist Cover...3 Mining Methods and Recovery 3 Gold in North Carolina 5 History of Mining 5 Production 7 General...Deposits of North Carolina 12 Eastern Carolina Belt 12 Portis Mine 14 Other Mines 14 Carolina Slate |  | | Report (issue) | | NORTH CAROLINA DEPARTMENT OF CONSERVATION WILLIAM DIVISION JASPER P. OF L. SAUNDERS, MINERAL...RESOURCES GEOLOGIST Circular 16 LOCALITIES NORTH OF CAROLINA BY JAMES F. CONLEY Doc NC DENR LIBRARY...... ACKNOWLEDGEMENTS MINERAL COLLECTING IN NORTH CAROLINA , . . . . # . WHERE TO COLLECT f ... f ......THE MINERAL LOCALITIES OF NORTH CAROLINA BY COUNTIES . . ALAMANCE COUNTY 5 5 Pyrophyllite ......... f .......... 5 ALEXANDER COUNTY ................. 7 Emerald, Hiddenite and Associated Minerals |  | | Report (volume) | | _ 16 Warren mine ____ 16 Milan mine ____________.._____________________ ._ 18 Lyman mine _______ _ _________...Geologic relations_____________________________ 18 Ore deposits __________________ _____ _ 20 General c...____________ '.__ 24 Copperfield or Ely mine ("Vershire mine).______i______ 24 History______________...character of ores____________________ Hartford County deposits__________________________ Simsbury (Newgate)...mine_________________________________ New Haven County deposits________________________ New York ____ |  | | Journal (article/letter/editorial) | | severalsulfidelayersthat possiblyare structurallyrepeated. The Ashe Formationin the district is a sequenceof metasedimentary...substantially from the clasticmetasediments of the Ashe Formation.Suchrocksare composed mainlyor whollyof...massivesulfide deposits within the late Proterozoic Ashe Formation in Carroll and GraysonCounties,southwesternVir-...Virginia and adjacent North Carolina the (WrightandRaman,1948;KlineandBallard,1949). Ashe Formation.The amphibolitesand...productionandreserves serpentinelensesin the Lynchburg-Ashe Formations are the Iron Ridge (Monarat)at the southwestern |  | | Journal (article/letter/editorial) | | and marbles, but also as a latestage deposition in ore deposits. The recent discovery of the (OH) analog...partially decomposed and consisted largely of calcite. Brewster described in 1819 a variety he called/ish-eye...the new species is the are Knob mine, Jefferson, Ashe County, North Carolina. At this locality, the hydroxyapophyllite...the type locality, the Ore Knob mine, Jefferson, Ashe County, North Carolina. The crystals are white...G'j~lalXtiol Minerals from the Midwest BARITE, CALCITE, FLUORITE VANADINITE Hamburg ~!l ,Az Deep |  | | Report (issue) | | 15A. Metasedimentary and metavolcanic rocks of the Ashe Formation by J.E. Gair ................... 85 ...Slack STOP 16. Open pit, east end of Betty Baker mine by J.E. Gair Drill core, Mineral district by J...4. Geologic map of the Mineral district, Louisa County, Virginia 5. Geology of the Gofer deposit. Plan...Mineral district ...................... 29 2. Ore minerals of the Gofer and Arminius deposits .......following rifting near the eastern edge of the North American continental plate. The rifting initiated |  | | Report (issue) | | 83(1) Z=2 X-ray Powder Pattern: Je®erson, North Carolina, USA. 3.965 (100), 2.990 (67), 1.588 (26), 4.554...100.04 100.00 24.78 5.20 (1) Je®erson, North Carolina, USA; by electron microprobe, H2 O by the Pen¯eld...datolite, pectolite, calcite. Distribution: In the USA, in the Ore Knob mine, Je®erson, Ashe Co., and the Foote...Foote mine, Kings Mountain, Cleveland Co., North Carolina; at Great Notch and Paterson, Passaic Co.,...Province, South Africa. In Norway, from the Mofjellet mine, Mo i Rana. These occurrences have been authenticated |  | | Report (issue) | | industry are included. The literature on sulfide ore deposits and Gulf Coast salt domes is so voluminous...sulfur by superheated water through wells at Sulphur mine, Louisiana, are fully detailed. Exploration and...and coal. fragments of fine-grained anhydrite. Calcite and sulfur were probably formed from anhydrite...California Auschwitz mine, Lake County - 2, 4 Coso Range deposits, Inyo County - 14 Coyote Mountain deposits...Imperial County - 13 Crater (Last Chance Range) mine, Inyo County - 9, 11, 15, 16, 17 Elgin mine, Colusa |  | | Report (issue) | | Gold, base-metal, and related deposits of North Carolina 1011 by Gwendolyn W. Luttrell 12 U.S. Geological... Gold, base-metal, and related deposits of North Carolina Abstract Gold, silver, copper, lead, zinc,...barite, and rare-earths have been mined in North Carolina. Gold, with by-product silver, occurs in veins...along the borders of a granite body in Halifax 18 County. 19 and Vanoe Counties. 20- Tungsten minerals...occur with sulfides in vein|j deposits in Cabarrus County. 21 22 23 24 25- U. S. GOVERNMENT PRINTING OFFICE: |  | | Report (issue) | | .'.' .., Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie RUTILE GUMMITE...Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh...copies of this publication may be obtained from: North CarOlina Department of Natural Resources and Community...for the general welfare of the citizens of North Carolina. The Section conducts a number of basic and...Geological Survey Section, P. O. Box 27687, Raleigh, North Carolina 27611. Eldon P. Allen, Chief Geologist FRONT | | | Report (issue) | | Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh...copies of this publication may be obtained from: North Carolina Department of Natural Resources and Community...Geological Survey Section, P. O. Box 27687, Raleigh, North Carolina 27611. Eldon P. Allen, Chief Geologist i ...FRONT COVER PHOTO Twinned emerald crystal from North Carolina, photo from Smithsonian Institution (slide...viable mineral collecting sites through out North Carolina. Some sites are commercially operated during |  | | Journal (article/letter/editorial) | | •9o•. Emmons, S. F.: The secondaryenrichmerit of ore deposits. Idem, pp. •77-2•7. Weed, W. H.: The enrichment...• Penrose,R. A. F.: The superficialalteration of ore deposits. Jour. Geol., vol. 2, pp. 288-3x7, x894...havebeenforgottenaltogether by his successors. In describingthe Ore Knob, N. C., depositHunt 4 says: The curious phenomenonof...experiencedeye of the quality of the underlying ore. As its porosity is indicative of the leaching away...beneath open and porous gossan will be found good ore, while on the other hand compactnessof limonite is |  | | Journal (article/letter/editorial) | | COUNTIES OF NORTH CAROLINA C. HENRY KING, FRANKUNVILLE, N.C. ALAMANCE—The North State pyrophyllite mine is located...by the Indians. ALLEGHANY—The Crouse manganese mine near Sparta has produced an interesting suite of...alleghanyite, rhodonite, spessartite, quartz, calcite, and tephroite. ANSON—About two miles SW of Wadesboro...is goldbearing. ASHE—Site of the Ore Knob copper mine in the eastern part of the county has produced chalcocite...Mountain. BURKE—Three diamonds have been found in this county. One specimen is at the State Museum in Raleigh |
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