 | | Journal (issue) | | THE PIEDMONT OF VIRGINIA James L. Poole INTRODUCTION The Piedmont province of Virginia is bordered on...or zinc occurrences in the Piedmont province of Virginia. , k (1) The mineralized district in Prince...Prince William, Spotsylvania, Louisa, and Buckingham counties includes base- and precious metal deposits in...planes, and are most common in the northern part of Virginia. Also, several small copper, lead, or zinc prospects...paper. PRINCE WILLIAM, SPOTSYLVANIA, LOUISA, AND BUCKINGHAM COUNTIES In the Piedmont province a series of |  | | Journal (article/letter/editorial) | | VIRGINIA MINERAL LOCAL INDEX Although perhaps best known for its turquoise crystals, apophyllite on...kyanite, Virginia has, in fact, over 150 mineral species. and D. A L L E N P E N I C K , JR. Virginia Division...Mineral Resources P. O. Box 3667 Charlottesville, Virginia 22903 T H I S V I R G I N I A M I N E R A L L...world-wide locality index. The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R . V . Dietrich. A l |  | | Journal (issue) | | February 1987 No.1 VIRGINIA MINERAL LOCALITY INDEX D. Allen Penick, Jr. This Virginia mineral locality...world-wide locality index The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R. V. Dietrich. Although...of the index. Some of the famous localities in Virginia, such Updated from Rocks and Minerals, Vol. 60...pegmatite in Amelia County and the Lynch Station locality (turquoise crystals) in Campbell County, are now closed |  | | Report (issue) | | the cover—Turquois crystals from Lynch Station, Virginia; x ca.; pho tograph by Neal Ycdlin; color plates...C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...of Virginia R. V. DIETRICH* Professor of Geology and Associate Dean of Arts & Sciences, Virginia Polytechnic...Polytechnic Institute Research Division Bulletin 47 Virginia Polytechnic Institute, Blacksburg, Va. 24061 *... © R. V. Dietrich and the Research Division of Virginia Polytechnic Institute, 1970 Printed and bound |  | | Journal (issue) | | the Virginia Polytechnic Institute, Engineering Experiment Station Series, dealing with Virginia Mineral...Mineral Localities: Virginia Mineral Localities (1960 Edition) Virginia Mineral Localities (Supplement...(Supplement I) Virginia Mineral Localities (Supplement II) Virginia Minerals and Rocks (3rd Edition) Ex LIBRIS...\I i! II II BULLETIN OF THE ·, I !V I ii VIRGINIA POLYTECHNIC INSTITUTE Engineering Experiment Station...Series No. 151 Ii !I ·1 " ii :c H I I I I ! VIRGINIA MINERAL LOCALITIES ( SUPPLEMENT II ) By Richard |  | | Report (issue) | | sulfur mines in the United States and by opening new mines, by greater recovery of byproduct sulfur (in...(1951); see the annotated bibliography, sulfur and pyrite general reference 1. 1 deposits or districts...The index map shows the locations of sulfur and pyrite deposits in the United States and Alaska, and also...EXPLANATION OF ANNOTATED BIBLIOGRAPHY AND INDEX MAF 1. Pyrite and marcasite deposits, some containing other recoverable...metalliferous deposits (mostly copper, zinc, lead, iron, gold, and molybdenum) that contain pyrites. 4. Coal |  | | Report (volume) | | Prof. H. E. Gregory, Sheffield Scientific School, New Haven. Delaware.........Prof. B. L. Miller, Lehigh...Tangier Smith, Berkeley, Cal. New Jersey...... .Dr. H. B. Kummel, Trenton. New York.........Mr. D. H. Newland............Prof. George H. Perkins, Burlington. Virginia...........Dr. Thomas L. Watson, Charlottesville...Washington....... Prof. Henry Landes, Seattle. West Virginia... .Dr. I. C. White, Morgantown. Wisconsin......See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |  | | Report (volume) | | ...... New Hampshire........................................................... 190 201 New Jersey.............. New Mexico............................................................. New York. ...................................................... Virginia......................................................................................... West Virginia.................................................F. C. Schrader: Besides giving several thousand new localities of mineral deposits and adding more than |  | | Report (issue) | | SULFIDES OF VIRGINIA FIELD TRIP GUIDEBOOK J. E. Gair, Editor U. S. Geological Survey Reston, Virginia 22092...Caledonian Stratabound Sulphides. Massive Sulfides of Virginia Field Trip Contents Page Introduction by J.E.... The Chopawamsic Formation of the Piedmont of Virginia by Louis Pavlides ............. STOP 1, 8 STOP...Slack STOP 16. Open pit, east end of Betty Baker mine by J.E. Gair Drill core, Mineral district by J...Geologic map of the Mineral district, Louisa County, Virginia 5. Geology of the Gofer deposit. Plan view |  | | Journal (issue) | | 00 $1.50 $3.25 S large rocks ft We are adding new items all the time, so come in and look around. You...1.50 ct. 3-15 ct PRECIOUS & SEMIPRECIOUS STONES NEW YORK 19, N.Y. i*i ■ LARGE EACETEDLscnuine) j j...00 ct. |T| CARNET emerald cut, clean good color NEW ENGLAND DJAMOND COEIP. CUTTERS Cr POLISHERS ■ CAMEOS... 1.25 Black 1.50 SarflrGreen Masonic or initial gold encrusted. . 3.50 ft ' ! i Cyyiineral SxcL...Speaking 3 T5I California Convention 4 Yogo Sapphire Mine Reopened 4 Alpha Counters 5 Berkeley Cass iter ite |  | | Book | | volume is dedicated is four-fold: (1) To locate by mine, deposit, or community those mineralized areas of...Co. Hematite CALERA, Shelby Co. Wavkllite CLAY COUNTY, Sec. 24. T. 19 S R., 7 E. STATUARY, Coosa Co...Co., (W. border of* Marble Crystalline TALLADEGA COUNTY Marble, (crystalline) VALLEY HEAD, DeKalb Co. Hematite...VILLAGE SPRINGS, Blount Co. Hematite WOODS COPPER MINE, Cloaburne Co. Sphalerite ARIZONA COVEI.I.ITE...PAYNE, DeKalb Co. Hematite FREDONIA, Chambers Co. Magnetite GADSEN, Etowah Co. Hematite GAYESVILLE, Cherokee |  | | Report (issue) | | returning it UNITED STATES DEPARTMENT OF THE INTERIOR GOLD DEPOSITS OF THE SOUTHERN PIEDl\IONT GEOLOGICAL...Intrusive rocks----------------------~---------Virginia __________________________________ _ ~ orth Carolina...Production ________________________________________ _ Gold deposits _____________________________________ _...21 22 22 23 23 23 24 24 27 29 32 32 32 33 33 Gold deposits-Continued Classification-Continued Lode...47 47 49 49 50 50 Mine descriptions ___________ --------- -- .. ------- - Virginia mines ___ _______________________ |  | | Book | | 5.95 and quickly informative.”— “Practical Virginia Kirkus RANGE GUIDE TO MINES AND MINERALS A by...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...Jay Ellis Ransom )' HARPER & ROW, PUBLISHERS New York, Evanston, and London A RANGE GUIDE TO MINES... Publishers, Incorporated, 49 East 33rd Street, New York 16, N. Y. * FIRST EDITION LIBRARY OF CONGRESS...61 232 PART The Making 43 II 5 7 3 III Mine PART 267 IV Glossary 279 Bibliography 291 |  | Neymark, L. A., Holm-Denoma, C. S., Pietruszka, A. J., Aleinikoff, J. N., Fanning, C. M., Pillers, R. M., Moscati, R. J. (2016) High Spatial Resolution U-Pb Geochronology and Pb Isotope Geochemistry of Magnetite-Apatite Ore from the Pea Ridge Iron Oxide-Apatite Deposit, St. Francois Mountains, Southeast Missouri, USA. Economic Geology, 111 (8) 1915-1933 doi:10.2113/econgeo.111.8.1915 | Journal (article/letter/editorial) | | Geochronology and Pb Isotope Geochemistry of Magnetite-Apatite Ore from the Pea Ridge Iron Oxide-Apatite...Deposit, St. Francois Mountains, Southeast Missouri, USA* L. A. Neymark,1,† C. S. Holm-Denoma,1 A. J. Pietruszka...(IOA) deposit is one of the major rhyolite-hosted magnetite deposits of the St. Francois Mountains terrane...and SHRIMP, and Pb isotope geochemistry of pyrite and magnetite to obtain the first direct age constraints...between 1.47 and 1.44 Ga. Lead isotop analyses of pyrite show extremely radiogenic 206Pb/204Pb ratios up |  | | Report (issue) | | has elevations less than 600 feet (183 m), but on Gold Mountain, in the center of the quadrangle, the elevation...crust beneath the Lowland. Exposed on Green and Gold Mountains are rocks related to the Coast Range basalt...first to examine the igneous rocks on Green and Gold Mountains in some detail, and Clark (1989) significantly...elevation of a foreset/topset bed transition at McKenna Falls (Thorson, 1989) indicates deposition of sediment...outwash deposits (unit Qva) and bedrock on Green and Gold Mountains. Forms undulating surface, with sediment |  | Hofstra, Albert H., Meighan, Corey J., Song, Xinyu, Samson, Iain, Marsh, Erin E., Lowers, Heather A., Emsbo, Poul, Hunt, Andrew G. (2016) Mineral Thermometry and Fluid Inclusion Studies of the Pea Ridge Iron Oxide-Apatite–Rare Earth Element Deposit, Mesoproterozoic St. Francois Mountains Terrane, Southeast Missouri, USA. Economic Geology, 111 (8) 1985-2016 doi:10.2113/econgeo.111.8.1985 | Journal (article/letter/editorial) | | Francois Mountains Terrane, Southeast Missouri, USA Albert H. Hofstra,1,† Corey J. Meighan,1 Xinyu Song...the source of salt and volatiles during early magnetite and later REE mineralization. Scanning electron...rutile precipitated before, during, and after magnetite and REE mineral growth. Ti-in-quartz and Zr-in-rutile...the amphibole, magnetite, hematite, and silicified zones where T increased during magnetite and quartz growth...evaporated seawater. Extracts from magnetite, hematite, and pyrite plot in the magmatic-hydrothermal field |  | | Journal (article/letter/editorial) | | association between gold and bismuth seen in many ore deposits, and involves the scavenging of gold from hydrothermal...whether the liquid bismuth collector model can explain gold accumulation at this prospect. The calc-silicate...containing grandite, hedenbergite, actinolite, magnetite, epidote, quartz, and calcite suggests that initial...metasomatism involved temperatures >400° to 500°C. Visible gold is associated with native bismuth, bismuthinite...Stormont and textural relationships suggest that gold was scavenged from hydrothermal fluids by liquid |  | | Journal (issue) | | .....................180 by W. E. Wilson What's new in minerals? Tucson Show 1989 .....................typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...over 130 years old. They produced every thing from gold and silver to base metals, coal, uranium and nonmetallic...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue |  | Li, Dengfeng, Fu, Yu, Sun, Xiaoming, Hollings, Pete, Liao, Jianlin, Liu, Qiaofen, Feng, Yuzhou, Liu, Ying, Lai, Chunkit (2018) LA-ICP-MS trace element mapping: Element mobility of hydrothermal magnetite from the giant Beiya Fe-Au skarn deposit, SW China. Ore Geology Reviews, 92. 463-474 doi:10.1016/j.oregeorev.2017.11.027 | Journal (article/letter/editorial) | | element mapping: Element mobility of hydrothermal magnetite from the giant Beiya Fe-Au skarn deposit, SW China...element mapping: Element mobility of hydrothermal magnetite from the giant Beiya Fe-Au skarn deposit, SW China...element mapping: Element mobility of hydrothermal magnetite from the giant Beiya Fe-Au skarn deposit, SW China...temperatures and geological settings, and hydrothermal magnetite (a common mineral in skarn) represents a potentially...describe a new 2D/3D quantitative element mapping approach to evaluate the element mobility of magnetite during |  | | Journal (issue) | | impractical or undesirable. Offers lowest unit bit cost. New “Spiralock” union holds bit dependably— permits easy...The Timken Roller Bearing Company, Rock Bit Div., Canton 6, O. Cable address: ‘“TIMROSCO”, FREE BOOKLET...Timken Roller Bearing Company, Rock Bit Division, Canton 6, Ohio. Cable address: “TIMROSCO”. DIS SEA PO...used, and PIONEER engineers continue to develop new compounds and constructions, using both natural and...such synthetics and crude rubber as allowed, plus new processes, we have improved the performance of many |  | | Journal (article/letter/editorial) | | Department of Earth Sciences IP University of New Brunswick Canada, AC CE PT ED M AN US E3B...reaction between the calcite and calcite / T pyrite shells and the clay matrix. Modelling of hornfels...fluids to form wollastonite and transformation of pyrite to pyrrhotite result in large volume changes which...have fossil AC impressions filled or coated by pyrite. He interpreted this variation to differences in...reported the presence of cordierite, green pyroxene, pyrite, brown mica and wollastonite (Cole, 1906/1907; |  | Cave, Bradley, Lilly, Richard, Glorie, Stijn, Gillespie, Jack (2018) Geology, Apatite Geochronology, and Geochemistry of the Ernest Henry Inter-Lens: Implications for a Re-Examined Deposit Model. Minerals, 8 (9) 405 doi:10.3390/min8090405 | Journal (article/letter/editorial) | | Abstract: The Ernest Henry Iron-Oxide-Copper-Gold deposit is the largest known Cu-Au deposit in the...apatite-calcite-quartz-garnet assemblage; biotite-magnetite ± garnet alteration; K-feldspar ± hornblende alteration;...fluids. Keywords: Ernest Henry; Iron-Oxide-Copper-Gold; ore genesis; apatite; U–Pb geochronology; geochemistry;...Introduction The Ernest Henry Iron-Oxide-Copper-Gold (IOCG) deposit is situated ~35 km NE of Cloncurry...occurs as chalcopyrite, and Au occurs as native gold with minor electrum [2]. Economic mineralization |  | | Journal (issue) | | Shipments by mines for 1958, 1959, 1960 B96 Open Pit Mine Production ef 3 Technological ; Advances Tons...Tons mined and stripped & 99 Underground Mine Production from 1955 through 1960 > 101 Geology and...and aeration for high metallurgical efficiency. New air control for increased cleaning efficiency. Special...Handled: Up to 65% solids, particles up to 34’ New principle incorporates recessed impeller, continuous...TWIN-AIR Rotary Screw Compressors Brand “Twin-Air’ new! Compressors & ’ offer CT Air-Cooled Compressors |  | | Journal (article/letter/editorial) | | Syntectonic Magmatism in the Neoarchean Abitibi Greenstone Belt, Superior Province, Canada Baptiste Madon 1, *,...Subprovince (greenstone belt), may be genetically related to intrusion related gold mineralization. These...magmatic-hydrothermal systems share common features with orogenic gold deposits, such as spatial and temporal association...greenstone belt hosted Au deposits. To precisely identify the link between syntectonic magmas and gold mineralization...greenstone belt 1. Introduction The Abitibi Subprovince (greenstone belt), Superior craton, is a gold-endowed |  | | Report (volume) | | area _ _ Twin Lakes feldspar prospect ______ Bishop mine ___________________________ Dutch Oven Pass prospect...no patented mining claims in the area, although county records indicate that unpatented claims have been...an eroded surface of Precambrian rocks (M. C. McKenna, written commun., 1968). To the south, in the Granite...an alteration product associated with skeletal magnetite. Quartz is present as late interstitial blebs...Anorthite Enstatite Ferrosilite _ Forsterite Fayalite Magnetite Ilmenite Apatite Calcite _ _ 1.4 4.7 29.6 19 |
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