 | | Journal (article/letter/editorial) | | and a distinctive limestone with large clastic calcite grains crop out. The sequence, the Tucutunemo formation...metasedimentary rocks and to overlie conformably the Las Mercedes formation. The volcanic rocks of the Villa de...(Fig. 1, B9) it passes out of the metamorphic province into an 253 area of unmetamorphosed rocks, and...surfaces display glinting cleavage surfaces of large calcite grains. This feature was noted in every outcrop...limestone members of other formations. Quartz-calcite veins are locally abundant. Some weathered surfaces |  | | Journal (article/letter/editorial) | | and quartz-plagioclase-micaceous schist) ; the Las Mercedes and Chuspita Formation (quartzcalcareous-mu...scovitic-graphitic-schist), and the Las Brisas Formation (quartz-albitic-muscoviticchloritic-schist)...reflects clearly the mineralogical assemblages of calcite-pyrite in the northern metasedimentary terranes...suspended sediments. The minerals, muscovite and calcite constitute about 30% of the northern sediments |  | | Journal (article/letter/editorial) | | of omphacite, on glaucophane IT, kyanite, and calcite stability fields, and on stratigraphic reconstructions...Starting with the oldest unit, the rocks consist of the Las Brisas formation, a quartzmuscovite-albite-chlorite-garnet...sequence; the Antimano marble, a calcite-dolomite-tremolite unit; the Las Mercedes formation, a quartz-muscovite-graphite...quartz-muscovite-graphite schist, quartzmuscovite-zoisite-albite-calcite marble, and garnet amphibolite (with eclogite)...eclogite) sequence; and the Tacagua formation with calcite-chlorite-albite schists and abundant quartz-albite-epidote |  | | Report (chapter) | | the MesozoicT e r t i a r y orogeny belong to the Las Brisas F m (of the Caracas G p ) . A p r o b a b...sericite-epidote schist <200 > 150 (top is eroded) Las Mercedes Mesozoic (Cret or Fm Jur), poorly preserved...upper part Antimano Fm ? Thick-bedded marble Las Brisas Fm Cret or Jur, poorly preserved marine fossils...amphibolites and metavolcanics interbedded in the Las Mercedes and Tacagua Fms, respectively, represent volcanic...z. Episode 3--the Guaremal granite intrudes the Las Brisas Fm and the Sebastopol Gneiss; it has given |  | | Journal (article/letter/editorial) | | from the SGR, which is known as the “Montecatini mine”, was exploited intensively until the 1970s to recover...along with detrital zircons and monazite grains. Calcite is abundant only in the deposit’s lower portion...study is part of an underground mine (usually named the “Montecatini mine”), which was exploited bauxite...study is part of an underground mine (usually named the “Montecatini mine”), which intensively untilintensively...m of depth) the disused, underground Montecatini mine (Figure 2). collected from (up to −11 m of depth) |  | | Report (issue) | | geographical area to which the deposit belongs. 11 PROVINCE The Republic of Bolivia is divided into 9 departments...list the name of the province in which a deposit occurs. PHYSIOGRAPHIC PROVINCE The physiographic provinces...which a mine first produced. YEAR OF LAST PRODUCTION Year in which an inactive producing mine last operated...(PRESENT/LAST) Person or corporation which owns the mine or mining claims. The most recent owner is listed...OPERATOR Person or corporation which operates the mine. This may be a subsidiary or a lessee. TOTAL INVESTMENT |  | | Report (volume) | | technical assistance to private mine operators about mineral exploration, mine development and operation,...trained to provide technical assistance to private mine operators, as well as to conduct reconnaissance...personnel were to supply guidance to small private mine operators on management and bookkeeping, service...1959, when the program ceased to grant loans to mine operators, the small staff consisted of one geologist...that extends from the Corocoro mine southeast to the Chacarilla mine. The second project mapped a belt-like |  | Ward, Dwight Edward, Goldsmith, Richard, Cruz, Bruna B., Restrepo, Jaime, Hernan, A. (1970) Mineral resources of the southern half of Zone III Santander, Norte de Santander and Boyaca, Colombia. Open-File Report Vol. 1970 (70-359) US Geological Survey doi:10.3133/ofr70359 | Report (issue) | | California and Vetas mining district (continued) Mine investigations.............................. 47................................... 51 Tembladal Mine........................................ 52 Cerro...Alpargateral.......................................... 54 Las Castillas.......................................................................... 55 Tembladal Mine........................................ 55 Hacienda................................... 59 Machacuta Mine........................................ 61 El |  | Maughan, Edwin K., Zambrano O., Francisco, Mojica G., Pedro, Abozaglo M., Jacob, Pachon P., Fernando, Duran R., Raul (1979) Paleontologic and stratigraphic relations of phosphate beds in Upper Cretaceous rocks of the Cordillera Oriental, Colombia. Open-File Report Vol. 1979 (79-1525) US Geological Survey doi:10.3133/ofr791525 | Report (issue) | | unconformity at base of Umir Shale from Quebrada Las Indias to Conchal, Santander.......................Their work led to discovery and the opening of a mine near Tesalia in the Department of Huila, in beds...led to the exploration and opening of a phosphate mine at Lobatera in the State of Tachira, Venezuela,...road traverses the La Luna Formation, in Quebrada Las Indias approximately 8 km west-southwest of San Vicente...base of the Umir was deposited between Quebrada Las Indias and Conchal in the Department of Santander |  | | Report (chapter) | | Colombia– Venezuela – Trinidad prolific petroleum province ROGER HIGGS Geoclastica Ltd, 6 Ockham Court, 22...sandstone, limestone or schist/gneiss (e.g. Las Brisas, Las Mercedes, Chancellor, Laventille, La Quinta, Rı́o...residue of formerly dispersed quartzose clay –silt, calcite –dolomite rhombs and graphite (former phytoplankton);...Gp, the Carib Weld might separate the Las Brisas and Las Mercedes fms, consistent with age constraints...inclusions of unknown source occur in a quartz-calcite vein cutting metamorphic rock (Sisson et al. 2005) |  | Díaz-Acha, Yael, Campeny, Marc, Tauler, Esperança, Bosch, Josep, Melgarejo, Joan Carles, Camprubí, Antoni, Villanova-de-Benavent, Cristina, Jorge-Villar, Susana E., Díaz-Ontiveros, Iria, Fernández-Lluch, David, Proenza, Joaquín A., Andreazini, Aleu, Pastor, Míriam (2019) Critical Elements in Supergene Phosphates: The Example of the Weathering Profile at the Gavà Neolithic Mines, Catalonia, Spain. Minerals, 10 (1) 3 doi:10.3390/min10010003 | Journal (article/letter/editorial) | | analyses were obtained Figure 3. Schematic profile of mine gallery 11N from the Archaeological Park of the...calcrete with 75 wt. % of calcite calcrete with 75quartz wt. % of calcite (Cal), 14jarosite wt. % of...can be due to admixtures of cryptocrystalline calcite or interstitial apatite, and to the occurrence...sample GAV 0.1 (Table 3), which was obtained at the mine entrance near the surface, is mainly composed of...Camprubí, A.; Melgarejo, J.C. Aproximación geológica a las minas neolíticas de fosfatos férrico-alumínicos de |  | Andrada de Palomera, Pablo, van Ruitenbeek, Frank J.A., van der Meer, Freek D., Fernández, Raúl (2012) Geochemical indicators of gold-rich zones in the La Josefina epithermal deposit, Deseado Massif, Argentina. Ore Geology Reviews, 45. 61-80 doi:10.1016/j.oregeorev.2012.01.001 | Journal (article/letter/editorial) | | Argentina (Fig. 1), is a geological and metallogenic province (Schalamuk et al., 1999), which is recognized... doi:10.1016/j.oregeorev.2012.01.001 in this province is hosted in low-sulfidation epithermal deposits...mainly composed of quartz and minor adularia, calcite, barite and sulfides. Some mineralized veins and...volcanic sequences, which are present in Argentina, Chile and probably Antarctica (Pankhurst et al., 1998)...constitute the Chon Aike Siliceous Large Igneous Province. The Jurassic volcanism produced a bimodal volcanic |  | | Journal (article/letter/editorial) | | esquistos epid6ticos cale~reos de origen vole~nico. Las dos subfacies estan separadas per fallas. La edad...a Medio. Las roeas del grade metam6rflco m~s bajo estan intrusionadas per serpentinitas, las cuales son...quartz, dllorite, muscovite, epidote, plagioclase, calcite, and iron oxides. In addition, the quartzites contain... Aufs~itze muscovite (much altered to serieite), calcite, plagioclase, iron oxides, and accessory tourmaline...sphene. The recrystallized limestones consist of a calcite mosaic, frequently containing quartz, chlorite |  | | Report (issue) | | .......................................... 29 Mine exposures.........................................Zipaquira* mine....... 40 3. Chemical analyses of twelve salt samples from the Upin mine.......... ... FIGURES (continued) Page 11. Lenses of fibrous calcite with well developed septa*................ 48...Cordillera Oriental. 3. Map of the Upin-Restrepo mine, Department of Meta. 4. Tectonic map of Zipaquira*...salt mine* 6. Map of the Zipaquira* salt mine, first level* 7. Map of the Zipaquira* salt mine, second |  | | Journal (article/letter/editorial) | | occasionally in REE [4,10,22–46]. For example, the Las Mercedes karstic bauxites in the Dominican Republic contain...Montenegro belong to the Dinaric metallogenetic province [60–62]. They are located in the metallogenetic...gibbsite,gibbsite calcite, but also present are:are: böhmite, goethite, quartz, rutile, calcite,cancrinite,... C—calcite, Cn—cancrinite, G—gibbsite, R—rutile, Basin A (a), basin B (b). H—hematite, C—calcite, Cn—cancrinite...minerals have been identified: hematite, gibbsite, calcite, cancrinite, less frequently but also presented |  | Reinhardt, Nils, Proenza, Joaquín, Villanova-de-Benavent, Cristina, Aiglsperger, Thomas, Bover-Arnal, Telm, Torró, Lisard, Salas, Ramon, Dziggel, Annika (2018) Geochemistry and Mineralogy of Rare Earth Elements (REE) in Bauxitic Ores of the Catalan Coastal Range, NE Spain. Minerals, 8 (12) 562 doi:10.3390/min8120562 | Journal (article/letter/editorial) | | lesser amounts of boehmite, diaspore, rutile and calcite. The mineralogy and major element composition indicate...(Figure 2), including four samples from an abandoned mine on the Plana de Casals (Figure 2A(i, ii)), three...three samples from the abandoned El Miracle mine near Les Pobles (Figure 2B(i, ii)) and one sample from a...outcrops (ii) (ii) in the CCR:CCR: A(i, ii) Abandoned mine Plana Casals,B(i, B(i, ii) ii) abandoned ElEl Miracle...Pobles, C(i, ii) Abandoned mine on on thethe Plana dedeCasals, abandonedmine mine Miracle Pobles, C(i, ii) |  | | Journal (article/letter/editorial) | | whereas in the lacustrine soil there is mostly calcite and opal of biogenic origin, as well as smectites...C. and L6pez, G., 1987. Amilisis comparativo de las variaciones de la calidad de aguas del Lago de Valencia...Men6ndez, A., 1966. Tect6nica de la parte central de las montafias occidentales del Caribe, Venezuela. Bol...tiempo de 81 los par~imetros fisico-quimicos de las aguas, C org~inico y metales pesados en los sedimentos...formados a partir de esquistos de la Formaci6n Las Mercedes en el ~irea de Guataparo, Estado Carabobo. Universidad |  | Pyrgaki, Konstantina, Gemeni, Vasiliki, Karkalis, Christos, Koukouzas, Nikolaos, Koutsovitis, Petros, Petrounias, Petros (2021) Geochemical Occurrence of Rare Earth Elements in Mining Waste and Mine Water: A Review. Minerals, 11 (8) 860 doi:10.3390/min11080860 | Journal (article/letter/editorial) | | Occurrence of Rare Earth Elements in Mining Waste and Mine Water: A Review Konstantina Pyrgaki 1, *, Vasiliki...Abstract: Mining waste, processing by-products and mine water discharges pose a serious threat to the environment...of rare earth elements (REE) in mining waste and mine water discharges produced from the exploitation...77 to 1957.7 ppm. The total REE concentrations in mine discharges from different coal and ore mining areas...ppm and from 1.6 to 24.8 ppm, respectively. Acid mine discharges and their associated natural and treatment |  | Ward, Dwight Edward, Goldsmith, Richard, Cruz, Jaime B., Restrepo, Hernan A. (1974) Geology of quadrangles H-12, H-13, and parts of I-12 and I-13, (zone III) in northeastern Santander Department, Colombia. Open-File Report Vol. 1974 (74-258) US Geological Survey doi:10.3133/ofr74258 | Report (issue) | | Uribante Group .........'........... 265 Tibu and Mercedes Formations. .......... 266 Aguardiente Formation...413 Alto de Guaca fault. ............ 413 Morro Las Penas fault. ........... / / Rio Listara fault. ...Mundo sync.1 ine and La Salina fault . . 434 .Las Monas anticline .......... 435 Provincia fault... Some greenish-Tray p'nyllite contains laminae of calcite, but no distinct lines tone or marble ^eds v.-ere...alteration products are chlorite, epidote, and calcite. Lamprophyre dikes*-** ^ Lamprophyre dikes are |  | Mondillo, Nicola, Balassone, Giuseppina, Boni, Maria, Chelle-Michou, Cyril, Cretella, Salvatore, Mormone, Angela, Putzolu, Francesco, Santoro, Licia, Scognamiglio, Gennaro, Tarallo, Marcella (2019) Rare Earth Elements (REE) in Al- and Fe-(Oxy)-Hydroxides in Bauxites of Provence and Languedoc (Southern France): Implications for the Potential Recovery of REEs as By-Products of Bauxite Mining. Minerals, 9 (9) 504 doi:10.3390/min9090504 | Journal (article/letter/editorial) | | goethite kaolinite hematite boehmite anatase goethite calcite hematite 16–17 LBP 7 53–58 4–10 16–17 15–22 53–58...(b) (c) Method wt.% XF701 XF701 XF701 anatase calcite 2–2.3 - 43◦ 300 1600 N 43◦ 270 2700 N 43◦ 270...deposits in the Xiuwen ore belt, Central Guizhou Province, Southwest China. Ore Geol. Rev. 2015, 65, 84–96...mineralogical characteristics of REE-bearing Las Mercedes bauxite deposit, Dominican Republic. Ore Geol |  | | Report (issue) | | 14 1. 2. 3. 4. 5. Asbestos ore Lead ore-Balmat Mine, N. Y. Chromite-chromium ore, Wash. Zinc ore-Friedensville.............. Districts in the Valley and Ridge province Ferruginous bauxite in Washington, Oregon, and...1978), dawsonite, aluminum phosphate rock, coal mine waste, coal ash, and copper leach materials. SOURCES...plastic, and paint. Bauxite is used in highway, mine-road, and railroad construction in countries having.... (Roy Chowdhury, 1965, p. 14-15). East Coast province ...... (Bharat Aluminium Co., 1977). Indonesia |  | | Journal (issue) | | with thinbedded, black limestone layers. White calcite veining is common, often forming a complete network...at only one locality near Balandra Bay. White calcite segregation veins are common. ArenaceousRocks:...interlaminar and cross-cutting 'gash' veins, and calcite segregation veins are abundant in the calcareous...content, may pass locally into shaly limestones. Calcite veining, both transverse and interlaminar, may...ragged, and fluted weathering are characteristic. Calcite veining is often present and may be extensive. |  | Shagam, R., Hargraves, R. B., Morgan, W. J., Houten, F. B. Van, Burk, C. A., Holland, H. D., Hollister, L. C. - Eds. (1972) Studies in Earth and Space Sciences. GSA Memoir 132. Geological Society of America doi:10.1130/mem132 | Report (issue) | | Orogeny in the Hanson Lake Area of the Churchill Province of the Canadian Shield.L.C. Coleman Possible Fracture...Magnetic anomalies and sea-floor spreading on the Chile Rise: Nature, v. 222, p. 137-142. 22 W. J. Morgan...(Irian) these rocks make up the north New Guinea province described by Visser and Hermes (1962) and equivalent...beds, showing joints and solution features where calcite has been leached from the siliceous rock. C, Closeup..., and Termier, G., 1952, Histoire geologique de las biosphere: Paris, Masson. - 1969, Global paleogeography |  | | Report (chapter) | | influenced exploration in this prolific oil and gas province, having met with wide acceptance (but see James...frontal (thrust); I, Ibague; L, Los Bajos; MCT, Mercedes– Caño Tomas; Mu, Murrucucú; O, Oriente; R, Romeral;...Conoropa, Grande Riviere, Güinimita, Las Brisas, Las Mercedes, Las Placitas, Los Naranjos, Mamey, Maracas...constrained to Mid or Late Cretaceous age (Aragüita, Las Placitas, Mejillones), yet volcanics are unknown...1980; LEV 1997). In eastern Venezuela, the Paso de las Peñas Quarry (Socas 1991; Pindell & Erikson 2001 |  | Putzolu, Francesco, Piccolo Papa, Armando, Mondillo, Nicola, Boni, Maria, Balassone, Giuseppina, Mormone, Angela (2018) Geochemical Characterization of Bauxite Deposits from the Abruzzi Mining District (Italy) Minerals, 8 (7) 298 doi:10.3390/min8070298 | Journal (article/letter/editorial) | | J.A. Meissonnier in 1857, and the first Italian mine for aluminum production was opened near the village...the Monti d’Ocre area [29]. They correspond to old mine sites all established on the first and most prominent...deposits is kaolinite. Accessory minerals are calcite and illite. The petrographic characteristics of...earthAnt elements) excess Al-deficiency have Cal = calcite. been detected in the Abruzzi samples, in comparison...mineralogical characteristics of REE-bearing Las Mercedes bauxite deposit, Dominican Republic. Ore Geol |
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