 | | Journal (article/letter/editorial) | | A weathered skarn-type mineralization in Ivory Coast: The Ity gold deposit Didier Béziat a,⁎, Luc Siebenaller...Birimian Ivory Coast Gold mineralization Saprolitic zone Skarn a b s t r a c t Although the Ity deposit...operating mine in Ivory Coast, very few studies exist on this deposit. It is situated in Western Ivory Coast...Abidjan. The mine is presently operated and mined by SMI (Société des mines d'Ity — Society of Ity Mines),...in the Ity area form a cluster of mining operations of various sizes (Flotouo, Zia, Mont Ity), hosted |  | | Journal (article/letter/editorial) | | KIRSTEN L. PRICE AND S. DOUGLAS McDOWELL Department of Geological Engineering, Geology and Geophysics...crystalline liS (greater than 80% expandable) and kaolinite in the Freda Sandstone in Wisconsin appear to...Michigan. Mature oil seeps occur locally within the mine raising the possibility that the Nonesuch Formation...represents Waples' (1980) envelope based on Gulf Coast li S expandability data. The shape of Waples' curve...attributed to widespread potassium deficiency in Gulf Coast sediments; thus, the smectite to illite reaction |  | | Report (issue) | | 14 1. 2. 3. 4. 5. Asbestos ore Lead ore-Balmat Mine, N. Y. Chromite-chromium ore, Wash. Zinc ore-Friedensville...GOVERNMENT PRINTING OFFICE, WASHINGTON: 1986 DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary...Guinea-Bissau ............................... 96 Ivory Coast .. ............................... 97 Madagascar...1978), dawsonite, aluminum phosphate rock, coal mine waste, coal ash, and copper leach materials. SOURCES...Zaragoza, Turkey, Cameroon, Spain and France, Ivory Coast, and Spain; George Van Buren Day, the Aluminum |  | Sun, Xingquan, Liu, Shengfa, Fang, Xisheng, Li, Jingrui, Cao, Peng, Zhao, Guangtao, Khokiattiwong, Somkiat, Kornkanitnan, Narumol, Shi, Xuefa (2020) Clay minerals of surface sediments from the lower Bengal Fan: Implications for provenance identification and transport processes. Geological Journal, 55 (9). 6038-6048 doi:10.1002/gj.3786 | Journal (article/letter/editorial) | | Ocean University of China, Qingdao, China 4 Department of Marine and Coastal Resources, Marine and Coastal...study area, with an average of 51%, followed by kaolinite, with an average of 20%, while chlorite and smectite...Wiedicke-Hombach, Kudrass, & Erlenkeuser, 2003) and eastern coast of the Indian Peninsula during the winter monsoon...et al., along the coast, and south of 10 N, it flows southward along the coast 2016; Li, Liu, Feng...from the secondary source area kaolinite + chlorite at 0.7 nm. Kaolinite and chlorite were separated is |  | | Journal (article/letter/editorial) | | exploratory drillholes in the North Onega bauxite mine has been carried out, tak The diffraction patterns...tremolite, replaced by hema tite and a gel-like kaolinite with a trace of seri cite). Chlorite disappears...(Interval 4, depth 53.6-44.3 m), there is a hematite-kaolinite rock (lithomarge) with a relict texture of the...are replaced by gel-like and very finely flaky kaolinite and hematite, and the plagioclase platelets by..."ghosts" of the laths disappear, and the hematite-kaolinite rock loses its textural-structural connection |  | | Report (issue) | | 14 1. 2. 3. 4. 5. Asbestos ore Lead ore, Balmat mine, N. Y. Chromite-chromium ore, Washington Zinc ore...PRINTING OFFICE, WASHINGTON : 1978 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL...not yet discovered or not currently profitable to mine. The mining of mineral deposits, once discovered...inner argillic zone containing quartz, alunite, kaolinite, dickite, sericite assemblage, minor iron and...zunyite; (4) outer argillic zone containing quartz, kaolinite, sericite, illite, and less abundant chlorite |  | | Journal (article/letter/editorial) | | Šegvić1,3 1 Department of Earth Sciences, University of Geneva, Geneva, Switzerland 2 Department of Geology...Geology, Mansoura University, Mansoura, Egypt 3 Department of Geosciences, Texas Tech University, Lubbock...Lubbock, Texas, USA Correspondence Mahmoud Leila, Department of Earth Sciences, University of Geneva, Geneva...upper unit coated polished thin sections at the Department of Earth Sciences, Uni- shows low‐amplitude...Authigenic calcite Authigenic clays comprise kaolinite, illite, and chlorite, whereas (Figure 4b,c) |  | | Journal (article/letter/editorial) | | Khalil2 | Mohammed S. Fathy2 | Fatma Ali2 1 Department of Geophysical Sciences, National Research Centre...for water and hydrocarbons exploration in its Department of Geology, Faculty of Sciences, Tanta University...sandstone at Gebel Correspondence Bassem S. Nabawy, Department of Geophysical Sciences, National Research Centre...in the central Eastern as well as the eastern coast of Sinai (Nabawy, Abdelhalim, & El‐ Desert. Regarding...rock facies. The block samples were oriented hor- ity (σw; Figure 2). It can be calculated using the following |  | | Report (issue) | | occur in the Fruitland Formation at the Navajo Coal Mine, in the Menefee Formation near Chaco Canyon National...Cretaceous Fruitland Formation at the Navajo Coal Mine (22), and the Cretaceous Pierre Shale between Raton...Kottlowski, all of the Bureau, and by Robert L. Bates, Department of Geology, The Ohio State University. Special...permission to enter the pit area of the Navajo Coal Mine. The manuscript was typed by Mrs. Lois Devlin, figures...plants are in the eastern, midwestern, and west coast parts of the country. At present, no plants produce |  | | Journal (article/letter/editorial) | | 200fi-2014 ENVIRONMENTAL GEOLOGY OF THE SUMMITVILLE MINE, COLORADO JOH• E. GI•A¾, U.S.Geological Survey,FederalCenter... 4). The emanatingfrom the mine. The EPA haspluggedthe major acid mine drainagesources(the Reynoldsand...acid- and term concern, whereas acidic, metal-rich mine metal-rich waters. Most of these waters emanate...waters emanatingfrom severalsourcesare longer acid mine drainagefrom smallseepsin and around the open pit...geologicpit mapispresentedin Grayet al. gold zones.Acid mine drainageemanatedfrom the (1993). Additional studiesof |  | | Journal (volume) | | analysis on sampies collected from study pits. The kaolinite in the till fines is due to intense chemical weathering.......... ... ............................. 18 Kaolinite ........... ......... .......................... ........................................ 29 Kaolinite ............................................................. ............. 48 Occurrence of kaolinite south of Lapland .. .......... ...... .. .......conte nt ma y vary markedl y . According to Ni e mine n ( 1985 ), till s containin g we ath e red m a |  | | Journal (article/letter/editorial) | | , 4 , A ND M IC H AE L A. V E LB E L 2 1 Department of Earth Sciences, P.O. Box 1002, Millersville...University, Millersville, PA 17551-0302, USA Department of Geological Sciences, 206 Natural Science Building...reactant-mineral compositions when they contain goethite, kaolinite, and pyrolusite. However, this combination requires...almandine garnet. To form a PSL of goethite and kaolinite, an almandine garnet must have a minimum Al stoichiometric... A PSL consisting of goethite, gibbsite, and kaolinite yields excess Al for export during almandine garnet |  | | Journal (article/letter/editorial) | | Mexico in a small area near Rockport along the Texas coast (Fig. 1), and to consider the significance of these...Contribution from the Clay Minerals Laboratory, Department of Geology, University of Illinois. 81 82...area investigated near Roekport along the Texas coast of the Gul f of Mexico. FIGURE the sampies studied...investigated is along the central part of the Texas Coast around Rockport and Aransas Pass. 1t includes the...bays. The area was chosen because of its va riabil ity, the small seale of industrial activity which might |  | McArthur, J.M., Turner, J.V., Lyons, W.B., Osborn, A.O., Thirlwall, M.F. (1991) Hydrochemistry on the yilgarn block, western Australia: Ferrolysis and mineralisation in acidic brines. Geochimica et Cosmochimica Acta, 55 (5) 1273-1288 doi:10.1016/0016-7037(91)90306-p | Journal (article/letter/editorial) | | B. LYON&~A. 0. OSBORN,’and M. F. THIRLWALL~ ‘Department of Geological Sciences, University College London...soils. The acidity causes the dissolution of kaolinite, which is abundant in playa sediments and as a...and SO,, and (3) a source of Al in the abundant kaolinite present in playa sediments and weathered regolith...each site revealed varying amounts of alunite, kaolinite, and quartz, and, in some samples, minor amounts...ready source of Al in abundant and ubiquitous kaolinite, which is present in Australia as a result of |  | | Journal (article/letter/editorial) | | 1910). At one time, jasper was mined at the Parrot mine (Chittenden Co.) on a small scale for use in colorful...hornblende? humite? ilmenite jimthompsonite* kaolinite kyanite lazulite leucoxene limonite lizardite...sources and are not included in the following local ity list. Perkins (1900) indirectly suggests that native...tremolite. Monkton orebeds south of East Monkton: kaolinite. Unnamed location in Weybridge: enstatite. Vermont...goethite, hematite, kaolinite, limonite, wad. Bennington County Bennington manganese mine in Bennington: wad |  | | Journal (issue) | | Braithwaite and JI. Wilson 87 Rosiaite from Bwlch mine, Deganwy, Conwy, Wales C; Ryback and J G. Francis... D.I. Green and G. Ry back Raspite from Carrock mine, Caldbeck Fells, Cumbria, England: a first British...Neall and D.I. Green Vesignieite from Castletown mine, Lochgilphead, Argyll and Bute, a first Scottish...George RYBACK, Alan D. HART and Chris J. STANLEY Department of Mineralogy. T he Natural Histo ry Museum ...to have surviv~d undamaged and unweathered in a mine dump from which they are supposed to have been collected |  | | Journal (issue) | | microscopic crystals. Most of them come from the Mariposa mine which was the original town site for Terlingua....moved several miles eastward to be near the Chisos mine after the Marfa Mariposa mining company shut down...but there is even less remaining at the Mariposa mine except an open pit and some underground workings...opened the Perry pit at the Mariposa mine site. It is the Mariposa mine that has the rare oxy-chloride mercury...never been specifically reported from the Chisos mine and most other mines in the district. So probably |  | | Journal (article/letter/editorial) | | binding material of the quartz of the veins. Kaolinite has resulted. Erosion has removed the upper part...one-half from the southern end. The names of the mine workings (Fig. 2) listed in order from north to...Columbia University, New York, N. Y. 2 National Department of Mineral Production, Rio de Janeiro, Brazil...1'rQ ).i,'.)l;ltg b-\',ry:5.? \:, -,1)1'.i, ,'11. ItY l'.tj'li'J'#; )_\', /,, , / ,'-i. ) {{ I r l(...assistance of Dr. Djalma Guimardes, formerly with the department, who has written numerous contributions on Brazilian |  | | Report (issue) | | United States Department of the Interior Geological Survey Strategic Minerals Investigations PRELIklNARY...Survey and the Bureau of Mines, United States Department of Interior, between October 1943 and February...glacial deposits. The ore minerals are mainly kaolinite and boehmite but gibbsite and alumina gel ere...boehmite and gibbsite were deposited with the kaolinite,vfere formed from it by alteration after deposition...the operation of both processes. Some of the kaolinite ^s probc.bly derived from a weathering profile |  | | Journal (issue) | | heard that "a volcano sprung out of the sea on the coast of Norway". Perhaps the correct news of a terrible...curator of American Museum of Natural History, Department of Invertebrates, has turned his talents to producing...are a distinctive feature in one area. Around the coast, basalts full of vesicles and miocene gypsum deposits...Our guest speaker is Head of the Earth Sciences department of the University of Greenwich and is in fact...show 5g. to the ton to be worthwhile. An open cast mine in Australia is worthwhile at only 0.25g. per ton |  | | Journal (article/letter/editorial) | | Abdel Wahab * The University of Texas at Austin, Department of Geological Sciences, Austin, TX 78712, USA...heavy minerals; (2) formation of local patches of kaolinite (mean D 3%); and (3) formation of extensive iron-oxide...Keywords: diagenetic history; porosity; authigenic kaolinite; quartz cement Ł Present address: Faculty of...of Education at Kafr El-Sheikh, Geology Department, Tanta University, Kafr El-Sheikh, Egypt. E-mail: antaraaw@frcu...The Ras Dib–Zeit Bay area is located on the west coast of the Gulf of Suez between Ras Dib to the north |  | | Book | | Information Office. United States Bureau of Mines, U.S. Department of the Interior, Washington, D.C.-for providing...I-larold A. Taylor, Jr., physical scientist. Nevada Department of Minerals, Carson City, Nevada-for permission...Driesner, administrator of the Division of Abandoned Mine Lands. The staff of Sterling Publishing Company...your portable mineral ultraviolet la1np. Pour some mine concentrate through a sifting screen, and pick out...Latin root mineralis ("mineral"), from rninera ("a mine,, or "ore"), and it is the study of minerals, those |  | | Journal (article/letter/editorial) | | chemical model for the origin of gibbsite from kaolinite. Amer. Minerar. 55, 1880-1889. Knr,r,nn, W. D...K-FELDSPAR-FURTHER DISCUSSION Lnowlnr Rosnnr GennNon,Department of GeologE,[Jntuersitg of South Carolina. Columbia...always be preceded by the precipitation of some kaolinite and/or gibbsite. This result may partly explain...Activities Proilucts of Speeies and Appanent SolubiJ-ity of Intersection Line andLGibbsite of K-Feldspar...Solubility Productb at Intersection Line ancl Kaolinite of K-FeIdspar Congruent Dissolution Stability |  | | Journal (article/letter/editorial) | | of sericite (muscovitepolytype 1M, in part), kaolinite,andmontmorillonite.Otheralterationproducts are...elevationsof about 4,000 to 5,000 CLANCY •fo HELENA IE ITY' / HOT BUTTE. BOULDER 5000 ABOVE Horizontal ...a depositof the "basemetal" type, the Lone Eagle Mine, has been reported previously(34). Past Work.--After...New development in the recentlyreopenedLone Eagle mine presentedan opportunityfor detailedstudy of one...centimeterin diameterare readily recognizedin the mine and dump specimens. FIELD STUDY Most of the field |  | | Journal (issue) | | ORE.-BIN 109 Portland, Oregon STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES Head Office:...relict textures * Field Geologist, State of Oregon Department of Geology and Mineral Industries. EXPLANATION...pyrite-impregnated tuffs. 112 Vol. 22 No. 11 STATE DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES As shown on...large that they were used for living quarters by the mine owners during the exploration period. The cavernous...reasonable in light of the small inclusions of clay (kaolinite) seen in thin sections of the silicified rock |
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