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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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| 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 |
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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 |
 | 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) |
| 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...druryi was recorded, together with the first occurrence of the endemic species Globorotalia transsylvanica...Nanoplankton Zone (CNZ) of [34], based on the co-occurrence of Sphenolithus heteromorphus, Helicosphaera |
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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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| 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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| . . . . . . . . . . . . . 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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| 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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| 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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| 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...replacement deposits along faults. A little later some gypsum was produced from small pods (injected masses)...silver, zinc, uranium; the industrial commodities gypsum, sand and gravel, and limestone; and energy sources...geologic features considered favorable for the occurrence of undiscovered mineral resources, except perhaps |
 | 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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| Antilles" journal of Sedimentary Petrology "An Occurrence of Gypsum in Southwest Texas" "Modern Evaporite Deposition...Salina Salt of Michigan" "Origin and Diagenesis of Gypsum and Anhydrite" PERMISSIONS The following papers...final part introduces some co mplexities of the gypsum-anhydrite equilibrium, the substitution of Br·...Papers 6 Through 12 6. Masson, P. H .: "An Occurrence of Gypsum in Southwest Texas" 42 45 ]our. Sed. Petrol...27 24. Murray, R. C.: "Origin and Diagenesis of Gypsum and Anhydrite" 248 251 ]our. Sed. Petrol. , |
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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...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...gypsiferous soils are associated with bedrock deposits of gypsum or pyrite but evapor ites with other sources of |
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| 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...site has produced and when or if it is a mineral occurrence or showing. Host Rock Age and Host Rock contain...gemstones Shl shale GRF graphite Tlc talc Gyp gypsum REFERENCES Abdullah, Sh., Chmyriov, V.M., Stazhilo-Alekseev...Nations, Atlas of Mineral Resources of the ESCAP Region, v. 12, 85 p. Jankovic, S., 1984, Strata-bound |
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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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| STRATIGRAPHIC NOTES ON MALONE MOUNTAIN AND THE SURROUNDING REGION NEAR SIERRA BLANCA, TEXAS BY T. W. STANTON WASHINGTON......__._._........ ._.._.___-..... Geography of region ...'.. ..........................................'...............^.... 9 9 9 10 Geology of the region .__._.._......;.............._.-.-....___._-.....the Malone district.......................... Occurrence of species by localities..-...-..--..-.--..----...graphic notes on Malone Mountain and the surrounding region, near Sierra Blanca, Tex.,by T. W. Stan ton... |
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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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| ___________________________________________________ 28 Gypsum ___________________________________________________...rocks _________________________________________3 4 Gypsum ______________________________________________35...pharmaceuticals and cosmetics. Clays, zeolite and gypsum with possible suitablity for use in cat-litter...with possible suitablity for filtering and fillers Gypsum for use in cement fabrication and agriculture Halite...geologic maps in the PNF area. Exceptions in the PNF region are the series of maps along the Verde River prepared |
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| orpiment (holohedral) azurite malachite 2/m gypsum OA2.P epidote pyroxenes amphiboles micas monoclinic...from a fissure in a calcareous rock (Solnhofen, Germany). in relation to the others. The possible faces...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 |
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| resources of wilderness study areas-San Rafael Swell Region, Utah) (U.S. Geological Survey bulletin ; 1752)...Mines and mineral resources-Utah-San Rafael Swell Region. 2. Mines and mineral resources-Utah-Muddy Creek...resources-Utah-Sids Mountain Wilderness. 7. San Rafael Swell Region (Utah). 8. Muddy Creek Wilderness (Utah). 9. Crack...resources 10 10 Mining history in the San Rafael Swell region 10 Muddy Creek Wilderness Study Area 11 Crack Canyon...Uranium and vanadium 17 Industrial minerals 19 Gypsum 19 Sandstone 19 Limestone 20 Petrified wood 20 |
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| information on the coba]t minerals, their mode of occurrence in economic deposits and methods of mining and...of the Bur Region, Somali Republic Fig. I Simplified drainage pattern of the Bur Region • • Fig...Fig. 2 Rosette diagrams of fold axes in the Bur Region . • page 429 ,, 430 Diagrammatic representation...representation of characteristics off olding in the Bur Region south-east of Baidoa . . . '' Magnetic pattern of...Fig. 5 Rosette diagram of 178 faults in the Bur Region . ,, • Fig. 6 Sketch map showing apparent distribution |
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| ------ -- ------ ---- ---- ---- ---Bighorn Mountain region ___________________________________________________...Mountain region. ____________________________________________________ Bighorn basin region _________...Mountain region. _______________________________ .______ _ Dikes of the Bighorn Mountain region. _____...Mountain region __________________________________________________ _ Bighorn Mountain region ________..._________________________ _ Owl Creek Mountain region ______________________ -·- _________________________ |
 | | Journal (article/letter/editorial) |
| 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 |
 | | Journal (article/letter/editorial) |
| Sea; Turkey. Introduction The eastern Black Sea region hosts several Kuroko-type, massive sulfide deposits...potential for epithermal gold deposits in this region. As a result of exploration works conducted in...Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, Germany DOI: 10.1127/0077-7757/2010/0157 www.schweizerbart...southwest of Ordu city in the eastern Black Sea region (Fig. 1). The geology of the area was studied ...smectitization and silicification. In addition, alunite and gypsum are also detected in a limited area. Kaolinite |
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| Copyright@gov.on.ca ONTARIO DEPARTMENT OF MINES GYPSUM IN ONTARIO By G. R. GUILLET INDUSTRIAL MINERAL...Treasurer, Ontario. Stamps are not acceptable. GYPSUM IN ONTARIO TABLE OF CONTENTS Page Acknowledgments... Evaluation of Gypsum Deposits.. . . . . . . . . . . . . . . . . . . . . . II Gypsum in South-Central...Subdivision of the Salina Formation.............. Gypsum-Anhydrite, Deposition and Distribution....... The... . . . . . . . . . . . . . . . Distribution of Gypsum and Anhydrite............. Welland County..... |
