 | | Journal (article/letter/editorial) | | SCHEELITE IN NORTHEASTERN BRAZIL. W. D. JOHNSTON, JR., AND FRANCISCO 'MOACYR DE • VASCONCELLOS...in the States of Paraiba and Rio Grande do Norte, Northeastern Brazil, all of which have been discoveredsince...cent WO• concentrates. The scheelite occurs in epidote-g;arnet-quartz tactites de- velopedin calcareouslayers...scheelitelocalities in the States of Paraiba and Rio Grande do Norte were known? Up to June,1944,about2,500...Clarindo Rabello: Tungst•nio na Paraiba e Rio Grande do Norte. Mineragio e Metalurgla, vol. VII, pp. 137-139 |  | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit...located in the Borborema Province in northeastern Brazil and consists of a gneiss basement (Archean to Paleo-Proterozoic)...Recife, Brazil e-mail: adauto@ufpe.br J. M. Legrand Departamento de Geologia, Universidade Federal do Rio...Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59.072-970 Natal, Brazil M. Volfinger : M.-L... and joseite [Bi4(Te,S)3], and also chlorite, epidote, prehnite, chalcopyrite, and sphalerite. This |  | | Journal (article/letter/editorial) | | deposit, Seridó Mobile Belt, Borborema Province, Brazil Nayara Moreira de Mesquita, Thais Andressa Carrino...deposit, Seridó Mobile Belt, Borborema Province, Brazil, Ore Geology Reviews (2019), doi: https://doi.org/10...deposit, Seridó Mobile Belt, Borborema Province, Brazil Nayara Moreira de Mesquita1 ORCID ID: https://orcid... da Arquitetura, s/n, 50740-550, Recife (PE), Brazil Corresponding author: Nayara Moreira de Mesquista...skarns in the Borborema Province, northeastern Brazil. The Bonfim W-Mo-Au-Bi-Te skarn occurs within a |  | | Report (issue) | | MINERAIS PROJECT REPORT Brazil Investigations (IR)BR-74 TUNGSTEN RESOURCES OF BRAZIL U. S. Geological Survey...standards or nomenclature 1974 TUNGSTEN RESOURCES OF BRAZIL By Max G. White CONTENTS Pages ABSTRACT .......tungsten in Brazil ........ 7 SCHEELITE DEPOSITS ...................... 7 Northeast Brazil. ..........Brejui Mine. .................... 10 Production, reserves, and resources potential .... 12 Rio Grande...Grande do Sul .................... 16 Location ...................... 16 Geologic setting of the wolframite |  | Bastos, Vivianne Andrade, Koester, Edinei, Lenz, Cristine, Dal Olmo‐Barbosa, Laércio, Porcher, Carla C., Loureiro, Paula O., Vieira, Daniel T., Ramos, Rodrigo C., Cedeño, Daniel G. (2021) Contribution to the understanding of the Pinheiro Machado Complex (Dom Feliciano Belt, Brazil): A study of textures, mineral chemistry, and crystallization conditions. Geological Journal, 56 (2). 1012-1033 doi:10.1002/gj.3980 | Journal (article/letter/editorial) | | the Pinheiro Machado Complex (Dom Feliciano Belt, Brazil): A study of textures, mineral chemistry, and crystallization...Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil 2 1 2 Departamento...Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil 3 Departamento de Geologia...Cristóv~ao, Sergipe, Brazil 4 Prefeitura de Sapiranga, Sapiranga, Rio Grande do Sul, Brazil Correspondence...Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil. Email: vivianneab@hotmail |  | | Book | | Professor Jacques P. Cassedanne Universidade Federal do Rio de Janeiro For his valuable participation in research...1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer, |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | | Report (chapter) | | MOHRIAK1 1 Universidade do Estado do Rio de Janeiro (DGRG/UERJ), Rio de Janeiro, Brazil 2 Programa de Posgraduação...Geologia, UERJ, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil *Corresponding author (e-mail:...to the Cabo Granite (104 Ma) are observed in NE Brazil. In West Africa, sparse Aptian–Albian ages are...following volcanic islands are observed: the Rio Grande Rise (88–86 Ma), Abrolhos (54–44 Ma), the Vitória...NW– SE-trending Cruzeiro do Sul Lineament from Cabo Frio to the Rio Grande Rise, but they have not been |  | | Journal (article/letter/editorial) | | Supersuite, Precambrian SulRiograndense Shield, Brazil a b Adelir José Strieder , Débora Grala Roldão...Federal University of Rio Grande do Sul , Porto Alegre, RS, 90 035-190, Brazil b Postgraduate Program...Federal University of Rio Grande do Sul , Porto Alegre, RS, 90 035-190, Brazil c Department of Geology...Federal University of Rio Grande do Sul , Porto Alegre, RS, 90 035-190, Brazil Published online: 06 Jul...Supersuite, Precambrian Sul-Riograndense Shield, Brazil, International Geology Review, 42:11, 984-999, |  | Duarte, Lauren C., Hartmann, Leo A., Ronchi, Luiz H., Berner, Zsolt, Theye, Thomas, Massonne, Hans J. (2011) Stable isotope and mineralogical investigation of the genesis of amethyst geodes in the Los Catalanes gemological district, Uruguay, southernmost Paraná volcanic province. Mineralium Deposita, 46 (3) 239-255 doi:10.1007/s00126-010-0323-6 | Journal (article/letter/editorial) | | Uruguayan deposits than in the Ametista do Sul area of southern Brazil. The range of δ34S values (−15.0 to...amethyst and agate geodes (600 tons/month) are Brazil (Ametista do Sul) and Uruguay (Los Catalanes). The cylindrical...Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil e-mail: lauren.duarte@ufrgs...Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 950091501-970, Porto Alegre, Rio Grande do Sul, Brazil...Brazil e-mail: leo.hartmann@ufrgs.br L. H. Ronchi Universidade Federal de Pelotas, Pelotas, Rio Grande |  | | Journal (issue) | | Miocene-earliest Pliocene evolution of the ancestral Rio Grande at the Española-San Luis Basin boundary, northern...Cover Image Intersection of the Rio Embudo and Rio Grande in the Rio Grande Gorge, looking upstream (towards... The gorge formed due to net incision of the Rio Grande during the late Pliocene and Pleistocene. The...period, two merging tributaries to the ancestral Rio Grande deposited a 10–25 m-thick package of gravelly...Miocene-earliest Pliocene evolution of the ancestral Rio Grande at the Española-San Luis Basin boundary, northern |  | | Journal (article/letter/editorial) | | Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil Luiz Alberto Vedana, Ruy Paulo Philipp & Miguel...Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil, International Geology Review, DOI: 10.1080/00206814...Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil Luiz Alberto Vedanaa, Ruy Paulo Philippa and Miguel...Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil; bCentro de...stratigraphic study of the Neoproterozoic Pontas do Salso Complex (PSC), western portion of the Dom Feliciano |  | | Report (issue) | | .................................... 30 Old Abe mine .............................................................................. 30 South Homestake mine .............................................................................. 38 North Homestake mine ...................................................................................... 43 Parsons mine .................................................................................... 45 Vera Cruz mine ............................................... |  | | Report (volume) | | Formation ..................................... . Rio Bonito Member ........................................................................ 80 29. Old Abe mine and mill, White Oaks district, New Mexico.........81 30. Iron ore being extracted from the Smokey mine and pulverized for use as road metal, Capitan Mountains...Mountains, N.Mex., showing locations of surface mine workings, placer gold workings, and placer gold..... 90 34. Photographs of iron ore at the Smokey mine in the Capitan Mountains district, New Mexico, showing |  | | Journal (article/letter/editorial) | | from 1900 to the middle 1940s; but the Mariposa mine, which produced most of the rare minerals, ceased...wrote for Rocks & Minerals on "The Weeks Pegmatite Mine, Wakefield, Carroll County, New Hampshire" (March/April...(Zeitner, 1972). Altuda Mountain district, Bird mine, 8 miles E of Alpine on a N projecting ridge. Worked...Standen, 1983). Altuda Mountain district, Bissett mine, 14 miles E of A l pine on E slope of Bissett...Bend National P a r k , Mariscal mine ( = Ellis, Viviana, or Lindsey mine), 26 miles S E of Study Butte |  | | Report (issue) | | Quartz variety amethyst, 3.5 cm tall Kakamunurle Mine, Kar0r, Tamil Nadu, India Bill Larson collection...Bottom: Quartz variety amethyst, 6.7 cm tall Wattika Mine, Murzinka, Sverdlovskaya Oblast', Russia Peter Lyckberg...kind of jewelry and stones were favored by well-to-do customers four centuries ago. Sir Robert Eric Mortimer...lapidary amethyst during that period. The first mine was opened at Valz-sous-Chateauneuf in the middle...influence on the world amethyst market emerged in Brazil (see page 66), where the discovery of rich deposits |  | | Journal (article/letter/editorial) | | ............................... 553 by the Rio Grande Valley and on the east by the 553 High Plains...area, locally flows westward and emptiesinto the Rio Grande. The surrounding terrain is characterizedby numerousside...(Fig. 1). 1920, the present owners of the Questa mine acThe village of Red River, from which the district...sufficient ore reserves were outlined to bring the mine back into productionwith an overall grade of SAN...part of which had suppliedthe bulk of the older mine production. More than 260 million tons of ore, averaging0 |  | | Report (issue) | | ............................................ Rio Bonito Member and the Glorieta Sandstone Bonney Canyon...include the Pecos River which drains into the Rio Grande, and the Canadian River that drains into the...east-flowing ephemeral and perennial rivers, including the Rio Hondo, Arroyo del Macho, Arroyo de la Mora, Yeso...uplift, which marks the eastward extent of the Rio Grande rift (Pray, 1961) (map D). The steep west front...uplifts of the Rocky Mountains (Paleozoic Sierra Grande uplift on the north and Pedernal uplift on the |  | | Report (issue) | | .......................................... 7 Rio Grande Depression ............................................................... Prospects along the Rio Primero and Canada Pinabete............. Cabresto...Cabresto Creek, between the Hornet prospect and Bonito Canyon .................................................... 35 Spanish Main prospect ["Govenor's Mine"(?)] ....................................... 36............. 36 Questa Molybdenum [Moly, R and S] mine ............................................ 38 |  | | Report (issue) | | along the margin of the Colorado Plateau and Rio Grande rift, northern New Mexico, by Gonzalez and Dethier...terminates in Albuquerque, focus on features of the Rio Grande rift. We will visit the New Mexico. The first...field, with stops at a classic the present-day Rio Grande rift and also examine the Pro- shield volcano...(Figs. 1, 2), and a general introduction to the Rio Grande rift (see IGC guidebook for Day 3, Callender... F., Hawley, J. W., and Keller, G. R., 1989, Rio Grande rift: 28th International Geological Congress |  | | Report (issue) | | Photo on title page: Lake Fork valley from Frazer mine, Twining Fairview Mountain at right NEW MEXICO...106 Geologic History 109 Economic Geology 110 RIO HONDO DISTRICT 110 Geology, mineralization, production...Alteration 113 Mineralization and production 115 Questa mine 119 ELIZABETHTOWN-BALDY DISTRICT 120 Hematite Creek...Tertiary granites 6—Chemical analyses of Questa mine stock 7—Correlation of glacial deposits in Lake...11—Stratigraphic column of early Tertiary sediments at Stella mine 12—Photomicrographs of Tertiary intrusive rocks |  | | Report (issue) | | lCyongsang-pukto __ lCangwon-do __________________________ _ ]{yonggi-do and IIwanghae-do _- - - - _----P'yongan-namdo...__ Crystalline rocks and fluvial deposits _____ Rio de Janeiro______________________ Sao Paulo______...Bahia_____________________________ Paraiba and Rio Grande do Norte____ Goias and Mato Grosso______________...South America-Continued Brazil-Continued Beach placers _________________________ _ Rio de Janeiro _____________________..._ Bahia ____________________________ _ Paraiba do Norte __________________ _ British Guiana ____________________________ |  | | Journal (article/letter/editorial) | | (Manzano Mountains), E. of Albuquerque. Galena King mine: barite, fluorite, galena, malachite. Hell Canyon...Canyon subdistrict (Seiiora de 10s Milagros mine): copper, cuprite, malachite. Catron County Apache Creek...stolzite. Wilcox district, S. of Mogollon. Lone Pine mine: emmonsite, khademite, lannonite,* mackayite, poughite...poughite, rajite,* tellurium, wilcoxite.* Sacaton mine, Blue Rock and Bit Spar prospects: fluorite. Volume...Mountains. Stevens mine: barite. Hembrillo district, San Andres Mountains. Red Rock mine: talc. Kilbourne |  | | Catalog/List | | Italy. massive, green 2 variety ADAMITE: Ojuela Mine, Mapimi, Durango, Mexico. crystals ADAMITE,variety...Index, Washington, USA. crystals ALBITE: Jeffrey Mine, Asbestos, Quobcc, Canada. crystals ALBITE: St....good crystal sections AS ,'\BOVE ALGOOONITE:Calumot Mine, Michigan, USA. massive ALL'\NITE: . Quadeville...1-:incrva .i'l Mine, Cavo-ln-Rock, Illinois, USA. good crystals ALT/1ITE: Hilltop Mine, Organ Mountain...Wickcnburg, Arizona, USA. massiv0 ALUNOGEN fuxtor l/7 Mine, san Rafael Sw01l, Utah, USA. massivo AMBER: Phillipina |  | | Journal (volume) | | between pages 14-15 mine, Fresno County, California. Geologic map and (A-B) of Mercy mine area. Sketch map...PLATE IV — Valley Lea-Grant mine area, San between pages 28-29 View mine, San Benito County, California...section of Valley View mine area. Sketch maps and map and section of PLATE V mine workings between pages... Geologic maps and sections of the Lucky Strike mine, San Benito County, California between pages 32-33...California Fig. 2 of El Fig. of Yturriarte mine, Rey mine, San Benito County, California San Benito |
|
