 | | Journal (article/letter/editorial) | | "CenomanoTuronian" Formations in the Manganese District of Imini (Morocco) and their Relation to Ore Deposition JEAN..."Cenomano-Turonian"formations in the manganese district of Imini (Morocco) and their relation to ore deposition. In:...formation of the high-grade manganese ores in the Imini and Tasdremt district, south of the High Atlas....surrounding carbonates can be used for the exploration of Imini-type manganese deposits. Introduction During the...subsiding basin in the area of the present High Atlas Mountain Range in Morocco, was invaded by both the |  | Dekoninck, A., Bernard, A., Barbarand, J., Saint-Bezar, B., Missenard, Y., Lepretre, R., Saddiqi, O., Yans, J. (2016) Detailed mineralogy and petrology of manganese oxyhydroxide deposits of the Imini district (Morocco) Mineralium Deposita, 51 (1) 13-23 doi:10.1007/s00126-015-0590-3 | Journal (article/letter/editorial) | | manganese oxyhydroxide deposits of the Imini district (Morocco) A. Dekoninck 1 & A. Bernard 2 & J. Barbarand...Cenomanian-Turonian dolostone of the Imini district (south of the High Atlas, Morocco) displays a high Mn content...Pyrolusite is the main Mn oxide observed in the Imini district during both early and late stages. The...concentrate Mn oxides and oxyhydroxides. Keywords Imini . Manganese deposits . Weathering . Cretaceous dolostone...the beginning of active exploitation in 1928, the Imini district (Fig. 1a) has been considered as the most |  | Verhaert, Michèle, Gautheron, Cécile, Dekoninck, Augustin, Vennemann, Torsten, Pinna-Jamme, Rosella, Mouttaqi, Abdellah, Yans, Johan (2022) Unravelling the Temporal and Chemical Evolution of a Mineralizing Fluid in Karst-Hosted Deposits: A Record from Goethite in the High Atlas Foreland (Morocco) Minerals, 12 (9) 1151 doi:10.3390/min12091151 | Journal (article/letter/editorial) | | Record from Goethite in the High Atlas Foreland (Morocco) Michèle Verhaert 1,2 , Cécile Gautheron 2 , Augustin...Record from Goethite in the High Atlas Foreland (Morocco). Minerals 2022, 12, 1151. https://doi.org/ Institute...Mines, Avenue Moulay Hassan 5, BP 99, Rabat 10000, Morocco Correspondence: augustin.dekoninck@unamur.be Abstract:...pure goethite formed in the Imini karst-hosted Mn district (High Atlas, Morocco) were examined in detail...stable isotope; δD; δ18 O; manganese; Imini; anti-atlas; Morocco 10.3390/min12091151 Academic Editor: |  | | Journal (article/letter/editorial) | | Cave-Fill Manganese-Lead-Barium Deposits of Imini, Morocco J. GUTZMER†, N. J. BEUKES, Paleoproterozoic...Sciences and Techniques, BP 523, Beni Mellal, Morocco AND J. MUKHOPADHYAY Paleoproterozoic Mineralization...important high-grade manganese ores of the Imini district, Morocco, are exceptional because of their unusually...the three strata-bound manganese orebodies of the Imini district formed in a laterally extensive karst cave...migrated from the elevated regions of the Anti Atlas region into the exposed carbonate succession. Alkali feldspar-rich |  | | Catalog/List | | small damage on one central Barytes . 9x7 Mibladen Morocco £70 4 VISHNEVITE slightly pale blue, small massive...interesting white platy flat calcite-- attractive piece 6x4. Whitesmith Mine Stontian Scotland £25 7 ElJDIAL...covering all over the top surface 4x3cm Cassagna Mine, Ne Liguria Italy £ 25 14 STRONTIO-ORTHO JOAQU1N1TE...pinkish micro crystals on Boracite crystals Boulby mine Loftus Yorkshire 3x2cm £18 16 PRICEITE hard white...orange crystal sections on lx2cm surface Molinello Mine, Val Graveglia Italy £8 18 NATIVE COPPER a cleaned |  | | Book | | of Earth Sciences Mohammed Ist University Oujda Morocco ISSN 2365-0559 Mineral Resource Reviews ISBN 978-3-319-31731-1...data on diverse types of metallic deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan...the setting and origin of major deposits in the region, together with information on tonnages and grades...lead-zinc-silver deposits of the Tighza district of Morocco, proposing links to granite-related porphyry and...Zgounder epithermal silver-mercury deposit of Morocco, providing evidence for a genetic tie to Neoproterozoic |  | | Journal (article/letter/editorial) | | Model for the Origin of the Imini ManganeseDeposit(Cretaceous)of Morocco ERIC R. FORCE,WILLIAM BACK,ELLIOTT...Arizona85287 Abstract The Imini deposit,just southof the AtlasMountainsof Morocco,consists of three bedsof...and dolomite matrix and pyrolusite-hollandite-calcite cement.The ore, solution-collapse breccia,and ...dolomite-janggunite, and(3) hollandite-pyrolusite-chert-calcite. Diagenesisprobablyoccurredduringthe Late Cretaceousin...mixingzone,where it precipitated. Descriptionof the Imini ManganeseDeposit Objective of Study SHALLOW-MARINE |  | | Journal (article/letter/editorial) | | carbonate;rarely, it results from Table 1, DFH-169). In this mine, somelayers m chocolate-brown plumo• supergene alterationof...manganit•, overlain by • layer of barite, •egaunee area, Marquette Range, •ichiga,. The specimen is ten...areas of rhodochrosite wi• drusy cavities, New Ross mine, Lunenburg, Nova Scoti The specimen is ten centimeters...percent;andcopperis lower. Smallamounts the Club House mine, Arkansas, in which such of cobalt,nickel, and thallium...tetragonal system,but well-terminated crystals are Cove mine, Hants, Nova Scotia (Fig. 5); and the vein depositsof |  | | Report (issue) | | and recommendations for the cobalt mission to Morocco sponsored by The Trade and Development Program...and Development Program and the Government of Morocco This report is preliminary and has not been reviewed...of the adequacy of exploration 'in the Bou Azzer area ............................................ 12...................... 16 EVALUATION OF THE BLEIDA AREA ........................................ 18 Summary....................................... 18 SIROUA REGION COBALT OCCURRENCES ........................... |  | | Report (chapter) | | Department de Géologie, BP. 20, 24 000, El Jadida, Morocco (e-mail: ezzouhairi_hassan@yahoo.fr) 2 INETI—Área... Portugal Abstract: The Late Neoproterozoic Ouarzazate Group crops out on the north margin of the West...southwestern side (Kerdous region) and northeastern side (Ouarzazate-Agdz region), interbedded in the Early...spread later to the Western High Atlas of the Morocco northern WAC outboard areas. This magmatism changes...Neoproterozoic formations, locally known as the Ouarzazate Group (or ‘Precambrian III’), correspond to fluvial |  | | Journal (article/letter/editorial) | | "volcanogene sedimentaire"by French geologistsworking in Morocco. Since then, other names,suchas "exhalative sedimentaire...thickerbedof tuff, and,in the central part of the Lucifer mine,the baseof the bed of oxideslies near the baseof...The manganesecontentof shipmentsfrom the Lucifer mine commonly rangesfrom 48 to 52 percent,the contentof...and the lead contentfrom 0 to 0.23 percent. In the area that includesthe two districts,there appearsto be...about70 mileslong that extendseastwardacrossOriente province(24, 45, 32). Althoughthe exploreddepositshave |  | Verhaert, Michèle, Bernard, Alain, Saddiqi, Omar, Dekoninck, Augustin, Essalhi, Mourad, Yans, Johan (2018) Mineralogy and Genesis of the Polymetallic and Polyphased Low Grade Fe-Mn-Cu Ore of Jbel Rhals Deposit (Eastern High Atlas, Morocco) Minerals, 8 (2) 39 doi:10.3390/min8020039 | Journal (article/letter/editorial) | | Ore of Jbel Rhals Deposit (Eastern High Atlas, Morocco) Michèle Verhaert 1, * ID , Alain Bernard 2 , Omar...Hassan II, BP 5366, Maârif, 20100 Casablanca, Morocco; omarsaddiqi@yahoo.fr Equipe de Recherche: Géophysique...Ismaïl, BP. 509, Boutalamine, 52000 Errachidia, Morocco; mourad.essalhi@gmail.com Correspondence: michele-alexandra...deposit, located in the Oriental High Atlas of Morocco, hosts a polymetallic Fe-Mn-Cu ore. Large metric...assemblage (goethite, pyrolusite, malachite and calcite). In the Paleozoic basement, Fe-Mn oxihydroxides |  | Álvaro, J. Javier, Ezzouhairi, Hassan, Ayad, Nouredine Ait, Charif, Abdelmounim, Solá, Rita, Ribeiro, M. Luisa (2010) Alkaline lake systems with stromatolitic shorelines in the Ediacaran volcanosedimentary Ouarzazate Supergroup, Anti-Atlas, Morocco. Precambrian Research, 179 (1) 22-36 doi:10.1016/j.precamres.2010.02.009 | Journal (article/letter/editorial) | | Ediacaran volcanosedimentary Ouarzazate Supergroup, Anti-Atlas, Morocco J. Javier Álvaro a,∗ , Hassan...Université Chouaib Doukkali, 24000 El Jadida, Morocco c INETI -Area de Geociências, Estrada da Portela, Zambujal...Saghro inliers of the Anti-Atlas, Morocco, the Ediacaran Ouarzazate volcanosedimentary Supergroup preserves...weathered palaeodepressions preserved in the Ouarzazate Supergroup. Fluids passing through the surrounding...reserved. 1. Introduction In the Atlas Mountains, Morocco, the northern limit of the West African craton |  | | Book | | Courtesy M. Ihmadi (Ihmadi Trilobite Center, Alnif, Morocco) André Michard · Omar Saddiqi · Ahmed Chalouan...(Eds.) Continental Evolution: The Geology of Morocco Structure, Stratigraphy, and Tectonics of the ...Faculty of Sciences B.P. 5366 Maârif Casablanca Morocco o.saddiqi@fsac.ac ma Prof. Dr. Ahmed Chalouan...University avenue Ibn Batouta Rabat B.P. 1014 Morocco chalouan@fsr.ac.ma Prof. Dr. Dominique Frizon...including the major Pan-African and Variscan cycles, Morocco has always been characterized by intense mining |  | Garnit, Hechmi, Kraemer, Dennis, Bouhlel, Salah, Davoli, Mariano, Barca, Donatella (2020) Manganese ores in Tunisia: Genetic constraints from trace element geochemistry and mineralogy. Ore Geology Reviews, 120. 103451 doi:10.1016/j.oregeorev.2020.103451 | Journal (article/letter/editorial) | | (Fan 89 and Yang, 1999). 90 Northern Africa (Morocco, Algeria, Tunisia and Egypt) is noteworthy for...Africa (after Beukes et al., 2016). The Imini district 94 (Morocco) is considered as the economically most...Atlasic domain represents the largest structural area of Tunisia and corresponds to a 191 transitional...From 205 the north to the south, this structural area can be divided into (Gharbi, 2013; Gharbi et al... 220 (Zargouni et al., 1985; Fig. 1B). In this area, only Cretaceous and Cenozoic strata and some 221 |  | | Journal (article/letter/editorial) | | (Gulbrandsenand Reeser, 1969); the Upper Cretaceous of Imini, manganese deposit •noX•C• •.•"•-'-•'•---••"•...transgressive-regressive cycle.Insetsapply to Morocco (Stamm and Thein, 1982; Force et al., 1986), and...TUR0NIAN •:•.,.. re<...•.... ,:•. • ::•• Imlm, Morocco CENOMANIAN ••. .•;•==i•i .•=i! ;•=• Groote Eylandt...Cenomanian-Turonian carbonatesof Morocco,fromStammandThein (1982). I = the Imini district,T = the coevalrea...ageform a largedepositin Hidalgoexposed over an area 20 by 50 km. The best publishedde- 02 zone 2O |  | | Journal (article/letter/editorial) | | lamellosa), which are locally cemented by sparitic calcite and Mn oxides. Fine, reworked Mn oxides occur in...18±0.6 Ma old (Oudet et al., 2010; Fig. 3a). The area is characterized by a volcanic– sedimentary succession...further two types of Mn ore : 1) in the La Piramide area, Mn mineralization occurs within a welded ignimbrite...are the main gangue minerals; 2) in the Cala Fico area, the Mn minerals (VH3 subgroup) are hosted within...and RS3 (manganite). Gangue minerals are quartz, calcite, plagioclase and K-feldspar. The XRD data also |  | | Book | | marokkanischen ses Buches die äußerst mineralreiche Region in Nordafrika nicht wiedergeben. Mineralien aus...„Goldmine No. 2" von Ali Moudoud, an der Straße von Ouarzazate nach Tizi-n-Tichka gelegen. 9 /' .. ., ...zum Beispiel auf der Strecke von Tazenakht nach Ouarzazate. nur fal sch verstanden habe? In Amizmiz sagt...r, al so wieder zurück zur Hauptstraße. Nahe der Mine von Guemassa können wir im Gelände noch kleine Achatkugeln...beleuchtete Filmlandschaft talabwärts nach Ouarzazate. Ouarzazate Hier finden wir ein ruhiges Quartier mit |  | | Report (chapter) | | volcanism onlapping the western Saghro inlier, Morocco J. JAVIER ÁLVARO1,2, MÉLINA MACOUIN3, HASSAN...Université Chouaib Doukkali, 24000 El Jadida, Morocco 5 INETI—Area de Geociências, Estrada da Portela, Zambujal...transition onlapping the western Saghro inlier, Morocco. Sedimentation of the ‘Calcaires inférieurs’ was...Neoproterozoic –Cambrian transition in the Souss Basin (Morocco) was the configuration of a basement inherited...centres and volcanosedimentary deposition (the Ouarzazate Group). Subsequent pulses of rifting reactivation |  | | Journal (article/letter/editorial) | | Zircon-quartz-calcite segregations in carbonate-alkaline metasomatic rocks of the western Baikal region and their...carbonatereplacement deposit (western High Atlas, Morocco)—Said Ilmen, Abdelkhalek Alansari, Bouchra Baidada...occurrence of banded iron formation in Ogbomoso area, southwestern Nigeria—Michael Adeyinka Oladunjoye...manganese oxyhydroxide deposits of the Imini district (Morocco)—A. Dekoninck, A. Bernard, J. Barbarand...associated with VHMS deposits in the Kristineberg area, Skellefte district, northern Sweden— Riia M. Chmielowski |  | | Catalog/List | | quality specimens, continuously 'rolling in' from mine contracts, general imports and collection purehases...something of an expert especially in the Lizard area where he had his own mineral dealership. We are...nnss, 2x1¾x1 , f.2. 50. APATITE/SIDERITE. Poldicc Mine, Illogan, Cormr.:i.llo Rare 19th C, specimen. Cavernous...xtls"3x2x1 11 ,215 00" 8. ARAG0NITE. Cape Sounion Mine,Attica,Greccc, Sharp spiky po..lc-green to _spnrkling... 4x2x1i~' 1 ,28. 00. AZUHITE/MALACHITE,.Morenci Mine \Arizona., U ..S.A. -Bri 15ht-blue spherical xtl· |  | | Journal (article/letter/editorial) | | polished sections, Mn carbonates in (originally calcite) monaxon sponge spicules are seen to have been...Mn, and major diagenetic alteration of primary calcite to Mn carbonate and finally to Mn oxide. Throughout...than 250 mT of ore) and of this major manganese province. However, while the eastern deposits lie within...Geologic sketch map of the Thrace Basin and surrounding area showing major tectonostratigraphic units, and the...topmost unit in this region is a series of fluvial sands and clays which contains calcite concretions locally |  | | Journal (article/letter/editorial) | | oceansshow in the presenceof a large amountof calcite,rho- effectsofbacterialscavenging of Mn, with or...sediments andfixationof Fe mainly at or aroundthe axial region of spreading in otherphasesmayalsoaffectMn/Fe ratiosin...et al., 1988a). Mn oxides,often with fluorite, calcite, barite, and dominant relativeto thatfromterrigenous...(Oligocene)(TR) OlympicPeninsula, U.S.A.(Eocene); Oriente Province, Cuba(Eocene) Mesozoic Timor Island (Cretaceous);...Groote Eylandt, Australia (Cretaceous)(TR) Imini-Tasdremt, Morocco (Cretaceous) (TR) Costa Rica (Cretaceous) |  | | Catalog/List | | shows hollow casts of a rbombic mineral up to 8mm (calcite?) 110x50x20rnm. £58. (a) £38. 60x50x15mm. (b) 45x40xl5mm...matrix, the top of wh.ich is flat and shows a 60x30mm area of pale amethystine quartz xls to 5mm approx, mostly...These are surrounded by small spikey colourless calcite xls and clear quartz with the dark grc�n· l>asalt...35x30x20mm. £ 12. ..._ 5) ARGYRODITE. Himmelsfurst Mine, Saxony, Gennany. Several lead grey metallic fragments...azuritc with azurite/malachite matrix. A 90x90mm area of dark blue lustrous xls to 5mm in the form of |  | | Journal (issue) | | .................... 211 by Richard V. Gaines Morocco M ineralogy......................................name on a label when additional details (such as mine, district or county) are easily obtained. Unlike...me a coll to arrange a showing when I am in your area. Of course, oil of us occasionally like to "window...Louis Joliet to search for copper deposits in the area, but Joliet in stead went on to discover the Mississippi...that the first exploration of the Lake Superior region was undertaken by the United States Government |
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