 | Bojar, Ana-Voica, Barbu, Victor, Wojtowicz, Artur, Bojar, Hans-Peter, Hałas, Stanisław, Duliu, Octavian (2018) Miocene Slănic Tuff, Eastern Carpathians, Romania, in the Context of Badenian Salinity Crisis. Geosciences, 8 (2) 73 doi:10.3390/geosciences8020073 | Journal (article/letter/editorial) |
| University, Hellbrunnerstraße 34, 5020 Salzburg, Austria Studienzentrum Naturkunde Mineralogie, Universalmuseum...Universalmuseum Joanneum, Weinzöttlstraße 16, 8045 Graz, Austria; hans-peter.bojar@museum-joanneum.at OMV Petrom... As above these tuff layers discrete levels of gypsum occur, the age documents the beginning of the restrictive...Slănic tuff discrete layers of gypsum Slănic tuff discrete layers of gypsum and white tuffs rich in biotite... massive halite and gypsum as comprising salt breccia, massive halite and gypsum as continuous layers |
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| orpiment (holohedral) azurite malachite 2/m gypsum OA2.P epidote pyroxenes amphiboles micas monoclinic...orthoclase; (3, 4) contact twins of fluorite gypsum (.swallowtail) and cassiterite (intergrowth);...micaceous in this case), the tabular aggregates of gypsum and barite, and the radiating- spherulitic aggregates...minerals: for example, "swallowtail" crystals of gypsum, small "v" s in intergrowing crystals of cassiterite...HARDNESS minium powder ( + 1. TALC 6. 2. GYPSUM 7. ) 3. 4. 5. sulfur ^/sjpowder (_) positive |
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| is commonly weathered into Vertisols containing gypsum concretions in amounts commercially extractable...sulphur isotopic analysis. The isotopic ratios in the gypsum fall in the same range as those in atmospheric...AND CLIMATE The studies were done in Coimbatore district in the western part of Tamil Nadu (Fig. 1). The...subgroup contain gypsum concretions (Soil Survey and Land Use Organisation, 1972). The gypsum is commercially...as well have a sea spray origin. Vertisols with gypsum concretions occur in peninsular India. In general |
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| Meules Cap aux Meules calcite occurrence Cap aux Meules gypsum occurrence Cap au Taureau occurrences Fatima...Baie du Sud occurrence Île du Havre aux Maisons Anse à Damase occurrence Butte Ronde occurrence Chemin des...Head Île de la Grande Entrée Boudreau Island occurrence 26 26 27 27 27 28 30 30 Cap-aux-Meules to Havre-Aubert...Collines de la Demoiselle Collines de la Demoiselle occurrence 31 31 33 33 33 34 Sandy Hook Dune Île du Havre...amethyst occurrence Middle Cove, Outer Cove occurrences Torbay quarry Bauline Road occurrence Quidi Vidi |
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| Synonyms and Other Names or Spellings Deposit or District Name Province Latitude Longitude Commodity(s)...the name of the mine, deposit, field, area, or occurrence being described. Synonyms and Other Names or...might also 5 include any specific mine or occurrence names that are known, i.e. "includes Northern...Deposit or District Name field contains the name of any larger deposit, field, or district to which the...site has produced and when or if it is a mineral occurrence or showing. Host Rock Age and Host Rock contain |
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| . . . . . . . . . . . . . Cap aux Meules gypsum occurrence . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . Baie du Sud occurrence . . . . . . . . . . . . . . . . . . . . . . ................................... Butte Ronde occurrence . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . Ile Boudreau occurrence . . .. .. . .. ... . . . . .. . .. . .. . .....34 34 Contents (cont. ) Page Demoiselle Hill occurrence . . . . . . . . . . . . . . . . . . . . . . |
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| GEOLOGICAL SURVEYS MINERAL RESOURCES DIVISION GYPSUM AND ANHYDRI E By A. w. GROVES, D.Sc.(Lond...where available . •• • . 11 • CONTENTS PAGE GYPSUM AND ANHYDRITE Introduction . . . . . . . . Principal...Principal properties . . . . . . . Mode of occurrence . . . . . . . Gypsum in relation to Overseas Mining Laws:...mining of gypsum deposits . Beneficiation of gypsum . . . . . . Chemical by-product gypsum . . . . .... Uses of gypsum As mined or quarried . . . . . • Crushed gypsum . . . . . . • Ground gypsum . . . . |
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| Selected Annotated Bibliography of Gypsum and Anhydrite in the United States and Puerto Rico By CHARLES...geographic occurrences, origin, technology, and uses of gypsum and anhydrite UNIT.ED STATES GOVERNMENT PRINTING...Francis, 1920comp. Selected annotated bibliography of gypsum and anhydrite in the United States and Puerto Rico...S. Geological Survey. Bulletin 1105) 1. Gypsum-Bibl. 2. Gypsum-U.S. 3. Anhydrite--Bib!. 4. Anhydrite-U...______________________________________________ Gypsum and anhydrite_____________________________________________ |
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| contain bassanite (CaSO4d 0.5H2O), associated with gypsum (CaSO4d 2H2O), in the upper ~1 m of the deposits...formed by dehydration of gypsum, is marked by variations in mode of occurrence with depth. In the lowest...bassanite occurs mainly along the contact between gypsum crystals in pores, which is related to the protection...the gypsum aggregates. At a higher level, bassanite occurs along the sides of lenticular gypsum crystals...sequence, bassanite mainly appears as inclusions in gypsum crystals, which represents a texture that developed |
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| Feldspar 9. Fluorite 10. Gamet .. l l. Graphite 12. Gypsum 13. Kyanite 14. Limestones .. 15. Magnesite .....and all cement, is being imported from abroad. Gypsum, asbestos and fluorspar have yet to be found in...brickearths. Future development of asbestos, fireclay, gypsum and brine deposits is probable, with possibilities...fields of industrial rocks e. g. building stones, gypsum, glass sand·s, cement materials, etc. Particular...concerned with asbestos (at Moshaneng, Keng Pan, etc.), gypsum (at Foley) and soda ash (at Sua Pan). Despite this |
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| Stream-sediment samples C9 Carbonate rocks Cll Gypsum Cll Sand and gravel Cll Assessment of mineral resource...gas, coal, and the industrial rocks and minerals gypsum, sand and gravel, and limestone (fig. 2) Character...Little Hatchet Mountains. The Big Hatchet mining district (fig. 1) is in the central part of the Big Hatchet...replacement deposits along faults. A little later some gypsum was produced from small pods (injected masses)...1 Sylvanite district 2 Fremont district 3 Animas district 4 Big Hatchet Mountains district Index map |
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| SULFUR-ISOTOPE GEOCHEMISTRY OF FRACTURE-FILLING GYPSUM IN AN ARCHEAN GRANITE NEAR ATIKOKAN, ONTARIO, CANADA...Sulfur-isotope geochemistry of fracture-filling gypsum in an Archean granite near Atikokan, Ontario, Canada...Canada. Chem. Geol., 3 9 : 2 6 3 - - 2 7 2 . Gypsum occurs as fracture-f'llling material in the Eye--Dashwa...Sulfur-isotope analyses and mode of occurrence indicate that the gypsum is probably of Precambrian age, even...the gypsum was formed by the interaction of porewater with epidote, plagioclase and pyrite. Gypsum occurs |
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| ___________________________________________________ 28 Gypsum ___________________________________________________...rocks _________________________________________3 4 Gypsum ______________________________________________35...and a scattering of mines in the Verde Ranger District (RD) and the southern half of the Bradshaw RD...found particularly in east Chino Valley Ranger District (fig. 1) and adjacent parts of the Kaibab National...pharmaceuticals and cosmetics. Clays, zeolite and gypsum with possible suitablity for use in cat-litter |
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| demonstrated. als, the which and observation gypsum partly and statistical elements, occur commonly...though revealed ably good correlation uranium and gypsum, between to in the The been and minerals...autunite them granite. Authigenic allogenic gypsum, and uranyl genic others Most mostly sphalerite...Ningyoite, I. sedimentation mineralization. gypsum, The typical sequence in Fig. 2, Plate the ...matter, unoxidized by oxidation, zone. with gypsum ore body and the Toga ningyoite as the It should |
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| Uranium and vanadium 17 Industrial minerals 19 Gypsum 19 Sandstone 19 Limestone 20 Petrified wood 20...Uranium and vanadium 20 Industrial minerals 20 Gypsum 20 Sandstone, sand, and gravel 21 Semiprecious...Gold and base metals 22 Industrial minerals 22 Gypsum 22 Limestone 22 Sandstone (silica) 23 Sand and...Wilderness Study Area-Continued Industrial minerals 24 Gypsum 24 Sand and gravel 24 Silica 24 Sulfur (gas sulfur...and vanadium 25 Copper 27 Industrial minerals 27 Gypsum 27 Sandstone 28 Sand and gravel 28 Oil, gas, and |
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| DOI 10.1007/s13146-011-0055-4 ORIGINAL ARTICLE Gypsum collapse hazards and importance of hazard mapping...2011 Springer-Verlag 2011 Abstract Collapse in gypsum terrains is a serious geological hazard and can...urban planing. Interpretation of future collapse occurrence requires an understanding of conditions and processes...collapse, it is necessary to assume that collapse occurrence is determined by collapse-related factors, and...presented for collapse susceptibility mapping in gypsum terrain in of Sivas basin (Turkey) using a statistical |
 | Hall, A. J., Fallick, A. E., Perdikatsis, V., Photos-Jones, E. (2003) A model for the origin of Al-rich efflorescences near fumaroles, Melos, Greece: enhanced weathering in a geothermal setting. Mineralogical Magazine, 67 (2) 363-379 doi:10.1180/0026461036720102 | Journal (article/letter/editorial) |
| alunogen, alunite, natroalunite, melanterite, gypsum, sulphur, sylvite, quartz, cristobalite and kaolin...may contain sulphates, near entrance. Fibrous gypsum? Vein, near entrance. White ef orescence, tunnel...Fragments of vein of coarse crystalline brous brittle gypsum. 1.5 cm wide. Some wall rock impurity, white to...(94) quartz (80) quartz (84) gypsum (100) gypsum (3), halite (3) gypsum (3), halite (1) quartz (3)...but gritty. 3 cm size lump of coarse crystalline gypsum. Pale yellowish to pale orange. Large rock fragment |
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| _____ . _.- : _.. _. __ ·______ , _: ___ . Cody district .............................................................. _____ .. : ___ _ ?\Ieeteetse district .................................................... ___ ... _.. ___ ·_. _.. _ Thermopolis district ......... _...... _..... __ .... _..... _..... ______...______ ... ___ . __ ..... _. ___ _ No Wood district ............................... : .......... __ ........ _.... __ . _____ ._. __ Basin district. .............. ~ ...... ___ ............... ____ .. _.. _ |
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| GYPSUM KARST IN THE WESTERN UKRAINE: HYDROCHEMISTRY AND SOLUTION RATES A.B. Klimchouk and S.D. Aksem...Kiev-Ol030, Ukraine; klim@klim.arrier.kiev.ua ABSTRACT: Gypsum karst in the westernUkraine underliesa largeterritoryof...higher there,due to higher rates of flowthroughthe gypsum and the largerarea of rock/solventcontact. The...solubility of gypsum and fast solution rates, sulphate ions commonly dominate in groundwaters of gypsum-karst...Even more important is determination of actual gypsum-solution rates. Solution rates from field studies |
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| Geokhimiya, 2015, No. 9, pp. 828–841. Kinetics of Gypsum Dissolution in Water A. L. Lebedev Faculty of Geology...dissolution of different lithological varieties of gypsum was experimentally inves tigated at 5–25°C and...kinetics. It was shown that the kinetic parameters of gypsum dissolution are invariant to the initial concentrations...size of gypsum and changes during epigenetic processes. The obtained kinetic parameters of gypsum dissolution...mass transfer. Keywords: lithological varieties of gypsum, kinetically controlled dissolution, rate constant |
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| SURVEY GEOKGE OTIS SMITH, Director Bulletin 697 GYPSUM DEPOSITS OF THE UNITED STATES BY R. W. STONE....................... Mineralogy and geology of gypsum, by R. W. Stone....................... Chemical............................................... Occurrence.......................:.......................................................... Analyses of gypsum, by R. W. Stone..................................in the chemical analysis of gypsum, by George Steiger............ The gypsum industry, by R. W. Stone. |
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| information on the coba]t minerals, their mode of occurrence in economic deposits and methods of mining and...Graphite • • • RADIOACTIVE • • • • • • • 397 Gypsum 399 Kaolin • 399 . • • • • . • • • •...include diamonds, chromite, fluorspar, graphite, gypsum, kaolin, phosphates, diatomite, talc and vermiculite...limited development at the Bushman Mine copper occurrence, however, little or no mining activity ensued...Bakgatla Tribal Territories, the Bushman Mine copper occurrence and various other mineral occurrences discovered |
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| Redwall Limestone and the Martin Formation. Known gypsum deposits have grades comparable to those in production...Forest plastic index parts per billion Ranger district metric tons unknown, but likely short ton in...environments.........................................5 Gypsum.................................................. Marine and lacustrine environments Gypsum Background Gypsum, or hydrous calcium sulfate (CaSO4-2H20)...sulfate (Harben and Bates, 1990). Upon loss of water gypsum becomes the mineral anhydrite (CaSC>4). Use of |
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| ...................... ^...... Character and occurrence.................................. Fossils and...Little Colorado. East of that valley is a wide district of rolling highlands, which to the north rise...Sandy shales and sandstones, redtion." dish to gray gypsum, and limestone. "Leroux formation".. Sandy shale...base.) Sandstones and sandy shales, with local gypsum beds. Massive bright-red sandstone.. . . . Larai... CAMBKIAN SYSTEM. TONTO GROUP. CHARACTER AND OCCURRENCE. The Tonto group underlies at least 30,000 square |
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| [(UO2)8(SO4)(OH)14 • 13(H2O)], with ubiquitous gypsum (CaSO4 • 2H2O). Several phosphates are identified...such as at the Piedra Triste mine in the Laguna District (Fig. 3). Samples from the St. Anthony and Section...zippeite + autunite (St. Anthony), and andersonite + gypsum. These minerals reflect the composition of post-deposition...to Ambrosia Lake 6 2.2 Laguna District 8 2.3 Ambrosia Lake District 10 2.4 Midnite Mine (Washington...Figure 2: Cross Section, Ambrosia Lake to Laguna District 7 Figure 3: Grants Mineral Belt Map 8 Figure |
