 | | Book | | at researchers, students, and everyone interested in geology. The series includes peer-reviewed monographs...Science and Technology Houari Boumediene Algiers, Algeria Zakaria Hamimi Department of Geology Benha University...Science and Technology Houari Boumediene Algiers, Algeria Basem Zoheir Department of Geology Benha University...Science and Technology Houari Boumediene Algiers, Algeria ISSN 2197-9545 ISSN 2197-9553 (electronic) Springer...recitation, broadcasting, reproduction on microïŹlms or in any other physical way, and transmission or information |  | | Journal (article/letter/editorial) | | panafrikanische Orogen-Gfirtel des Hoggar-Gebirges in Siidalgerien erstreckt sich fiber eine Breite yon...geologischen Einheiten aufgebauten mobilen Zone. In seinem westlichen Tell zeugen bereits die untersten...Orogen vom andinen Typus auf granulitischem Untergrund in Betracht gezogen. Dieses der Kruste vor ca. 650~800...J. neu zugeffihrte Material steht m6glicherweise in Zusammenhang mit nach Osten einfallenden Subduktionszonen...Grabenzonen. Diese verschiedenen Elemente werden in unterschiedlichem MaBe von der panafrikanischen Tektogenese |  | | Report (chapter) | | granulite-facies metapelites of Tidjenouine (Central Hoggar, Algeria): witness of the LATEA metacratonic evolution ABDERRAHMANE...Eburnean and Pan-African orogenies. The Tidjenouine area in the Laouni terrane belongs to the LATEA metacraton...detailed petrological study coupled with in situ U âPb zircon dating by laser-ablation inductively coupled...on the basis of textural relationships, modelling in KFMASH and FMASH systems and thermobarometry. The...at c. 650 8C and 3â 4 kbar (M3) occurred. Uâ Pb zircon laser ablation ICP-MS analysis allows us to date |  | | Journal (article/letter/editorial) | | 1016/j.oregeorev.2019.103260 OREGEO 103260 To appear in: Ore Geology Reviews Received Date: Revised Date:...copyediting, typesetting and review before it is published in its final form, but we are providing this version...continental blocks. The belt, with major exposure in the Tuareg and Dahomeyan, consists of pre-Neoproterozoic...greenstone belts in terms of gold mineralization, displays reasonable gold mineralization in both the Tuareg...controlled by N-S trending Pan African shear zones. In the Tuareg shield, mineralized quartz veins are associated |  | | Journal (article/letter/editorial) | | Printed in The Netherlands PAN-AFRICAN AND PRE-PAN-AFRICAN HISTORY OF THE HOGGAR (ALGERIAN SAHARA) IN THE...pre-Pan-African history of the Hoggar (Algerian Sahara) in the light of new geochronological data from the Aleksod...structural and geochronological investigations carried out in the Central part of the Hoggar: -- confirm the existence...still to be defined. These results are discussed in the setting of available geochronological data concerning...and on the occurrence of unconformities, emphasized in some places by metamorphic conglomerates (Kilian |  | Fezaa, Nassima, LiĂ©geois, Jean-Paul, Abdallah, Nachida, Cherfouh, El Hadi, De Waele, Bert, Bruguier, Olivier, Ouabadi, Aziouz (2010) Late Ediacaran geological evolution (575â555Ma) of the Djanet Terrane, Eastern Hoggar, Algeria, evidence for a Murzukian intracontinental episode. Precambrian Research, 180 (3) 299-327 doi:10.1016/j.precamres.2010.05.011 | Journal (article/letter/editorial) | | (575â555 Ma) of the Djanet Terrane, Eastern Hoggar, Algeria, evidence for a Murzukian intracontinental episode...GĂ©ologie de lâingĂ©nieur et PlanĂ©tologie, USTHB, Algeria Isotope Geology, Royal Museum for Central Africa...GĂ©ographie, BP 32, El Alia, Bab Ezzouar, 16111 Alger, Algeria d FacultĂ© des Sciences Biologiques et des Sciences...GĂ©ologie de lâingĂ©nieur et PlanĂ©tologie, USTHB, Algeria e SRK Consulting, 10 Richardson Street, West Perth...Article history: Received 18 September 2009 Received in revised form 25 February 2010 Accepted 5 May 2010 |  | | Journal (article/letter/editorial) | | Springer-Verlag 1995 Gold mineralization in the West Hoggar shear zone, Algeria K. Ferkous 1, M. Leblanc 2 10...M., 8 rue des Aur6s, E1 Harrach, 16000 Alger, Algeria 2 C.N.R.S., Centre G6ologiqueet G6ophysique,Un...fault of the Pharusian Belt of the Tuareg Shield (Algeria). The Amesmessa shear zone is asymmetric: strong...biotitic ultramylonites are in contact with a rigid Archean complex (In Ouzzal block), whereas there is...(pyrite, galena, native gold, sphalerite) crystallized in the deformed quartz matrix along late shear planes |  | | Journal (article/letter/editorial) | | Zebane dyke swarm ĆŸPan-African Tuareg shield, Algeria /: prevalent mantle signature and late agpaitic...located along the western boundary of the Archaean In Ouzzal rigid terrane, but inside the adjacent Tassendjanet...at that period. No crustal contamination occurred in the genesis of the Tin Zebane swarm. Even the samples...granites: this geochemical signature is interpreted in terms of extensive differentiation effects due to...aegirine, zircon, titanite, allanite and possibly fergusonite, separated from the liquid in the swarm |  | | Journal (article/letter/editorial) | | V., Amsterdam - Printed in The Netherlands Location of extraneous argon in granulitic-facies minerals:...and Rahmani, A., 1990. Location of extraneous argon in granulitic-facies A paired microprobe-laser probe...investigated minerals from the In Ouzzal granulitic unit (Sahara, Algeria). As excess 40Ar frequently occurs...laser probe technique in an attempt to determine the location of the excess component in the minerals. Combining...found to be located on the rim of the biotite and in the microcracks of the pyroxene and garnet which |  | | Journal (article/letter/editorial) | | 5005, Australia Received 20 February 2007; received in revised form 30 May 2007; accepted 4 June 2007 Available...commonly occur in MgâAl-rich rock compositions that are unfortunately relatively rare in nature. These...for extracting information from mineral assemblages in conjunction with mineral chemistry, e.g. the aluminium...been proposed for the generation of UHT conditions in the deep crust. The two fundamental types of orogenic...proposed to be potential sites for UHT metamorphism. In contrast to current geodynamic models that are typically |  | | Journal (article/letter/editorial) | | Evolution of the Precambrian In-Ouzzal block (Central Sahara, Algeria) H. Haddoumâ, P. Choukroune**b...to constrain the evolution of the Precambrian In-Ouzzal block situated on the eastern side of the West...rocks which can be compared with those described in Archaean supracrustal terrains. (ii) The entire block...second phase. (iv) The major tectono-metamorphic event in the area is related to a 2.0 Ga-old (Ebumian) orogeny...erased by the Eburnian event. 1. Introduction The In-Ouzzal granulitic block is isolated between two branches |  | Doukkari, Sid Ali, Diener, Johann F.A., Ouzegane, Khadidja, Kienast, Jean-Robert (2018) Mineral equilibrium modelling and calculated chemical potential relations of reaction textures in the ultrahigh-temperature In Ouzzal terrane (In Hihaou area, Western Hoggar, Algeria) Journal of Metamorphic Geology, 36 (9) 1175-1198 doi:10.1111/jmg.12441 | Journal (article/letter/editorial) | | textures in the ultrahigh-temperature In Ouzzal terrane (In Hihaou area, Western Hoggar, Algeria) Sid Ali... B.P. 32 El Alia, Dar el Beida, 16111-Alger, Algeria. b DĂ©partement des Sciences de la Nature et de...orthopyroxeneâsillimanite-bearing granulites from In Hihaou, In Ouzzal terrane, NW Hoggar were previously determined...to be reliable, as textures do not typically form in this way or routinely record this information. Keywords:...that can be attained in the crust, there has been a proliferation of interest in identifying rocks and |  | | Journal (article/letter/editorial) | | and spinelâquartz parageneses in AlâMg granulites from In Hihaou, In Ouzzal, Hoggar K . OU Z EG A NE AN... Algiers, Algeria A B S TR A CT Quartz AlâMg granulites exposed at In Hihaou, In Ouzzal (NW Hoggar)...Grt+Crd+SilÂSpl+Qtz and (8) Grt+SilÂSpl+Qtz. Minerals in quartz AlâMg granulites display compositional variations...textures and the evolution of the mineral assemblages in the quartz AlâMg granulites indicate a clockwise...temperature of at least 900 °C. Key words: granulite; In Ouzzal, Hoggar; PâT path; ultrahigh-temperature metamorphism |  | | Report (chapter) | | Comparisons between the northwestern Borborema Province, NE Brazil, and the southwestern Pharusian Dahomey...Comparisons between the northwestern Borborema Province, NE Brazil, and the southwestern Pharusian Dahomey...Brasiliano Borborema Province are described and compared with their counterparts in the Pan-African Dahomey...West Gondwana assembly. In the MeÌdio CoreauÌ domain, NW Borborema Province, U âPb and Smâ Nd data have...with large tracts of 2.15â 2.10 Ga juvenile gneisses in the CearaÌ Central domain. These basement blocks |  | PEUCAT, J.-J., CAPDEVILA, R., DRARENI, A., CHOUKROUNE, P., FANNING, C. M., BERNARD-GRIFFITHS, J., FOURCADE, S. (1996) Major and trace element geochemistry and isotope (Sr, Nd, Pb, O) systematics of an Archaean basement involved in a 2.0 Ga very high-temperature (1000oC) metamorphic event: In Ouzzal Massif, Hoggar, Algeria. Journal of Metamorphic Geology, 14 (6) 667-692 doi:10.1111/j.1525-1314.1996.00054.x | Journal (article/letter/editorial) | | basement involved in a 2.0 Ga very high-temperature (1000 °C) metamorphic event: In Ouzzal Massif, Hoggar...Hoggar, Algeria J . - J . P E U CAT, 1 R . CA P DE V I LA , 1 A . D R AR E NI , 2 P . CH O UK R OU NE , 1*...USTHB, Institut des Sciences de la Terre, Algiers, Algeria 3 Research School of Earth Sciences, ANU, Canberra...CT The In Ouzzal granulitic massif is composed mainly of various meta-igneous rocks which, in spite of...high-Mg tholeiitic basalts similar to the suites found in Archaean greenstone belts and (3) calcalkaline protoliths |  | | Journal (article/letter/editorial) | | relationships in the Precambrian AI-Mg-rich granulites from In Ouzzal, Hoggar, Algeria P. BERTRAND,'...21nstitut des Sciences de la Terre, U.S.T.H.B., Alger, Algeria Laboratoire de Petrologie Mdtamorphique, Universite...ABSTRACT The Al-Mg-rich granulites from the In Ouzzal craton, Algeria, show a great diversity of mineral reactions...continuous equilibria as predicted by phase relationships in the Fe0-Mg0-A1,03SiO, system. The sequence of mineral...Sa-Qz-bearing assemblages; and (3) a later stage, in which garnet-bearing assemblages are replaced by |  | | Journal (article/letter/editorial) | | Special Issue Palaeoproterozoic UHT metamorphism in the Lewisian complex and North Atlantic region Sotaro...temperature (UHT) metamorphism of the Lewisian complex in South Harris and the North Atlantic regions were...The characteristic features of the UHT metamorphism in the South Harris can be summarized as a) mineral...established UHT metamorpism in South Harris is the emplacement of igneous suite in the magmatic arc at c.... 2.18 â 1.87 Ga. In the North Atlantic region, possible UHT metamorphism were reported from the Boothia |  | | Report (chapter) | | discovered in Al âMg granulites from the Khanfous area (In Ouzzal metacraton, Hoggar, Algeria) Z. ADJERID1...Khanfous area from the Archaean In Ouzzal granulite terrane (Western Hoggar, Algeria) preserves exceptional thermal-peak...ĂŸ quartz and sapphirine ĂŸ orthopyroxene ĂŸ quartz, in quartz-rich AlâMg granulites. Reaction textures coupled...Khanfous area, as well as the entire northern In Ouzzal metacraton, experienced ultrahigh-temperature...feldspar preserved as mesoperthite or antiperthite in metapelites (e.g. Harley 1985; Sandiford 1985; Sheraton |  | | Journal (article/letter/editorial) | | assemblages preserved in ultrahigh-temperature granulites from In Ouzzal (Hoggar, Algeria) Z. ADJERID,1,3 G...Naturelles, B.P. 92, Vieux Kouba, Alger, 16050, Algeria 2 Institut de Physique du Globe, Sorbonne Paris...Alger, 16111, Algeria 4 Univ. Paris-Diderot, Paris 7, France ABSTRACT Osumilite is reported in Palaeoproterozoic...granulites from the Khanfous area (Tekhamalt, In Ouzzal, Hoggar, Algeria). The main peak assemblages are osumilite...orthopyroxene + sillimanite + quartz biotite (K-feldspar) in silica-deficient and silica-saturated granulites |  | | Book | | recitation, broadcasting, reproduction on microïŹlms or in any other physical way, and transmission or information...trademarks, service marks, etc. in this publication does not imply, even in the absence of a speciïŹc statement...are safe to assume that the advice and information in this book are believed to be true and accurate at...scientiïŹc papers on mineral deposits of North Africa. In total, 22 papers report new ïŹeld and laboratory data...data on diverse types of metallic deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan |  | | Journal (article/letter/editorial) | | e and sapphirine parageneses in Archaean rocks from the Hoggar, Algeria J. R. Kienast Laboratoire de...Dar el Beida, Alger, Algeria An orthopyroxene-sillimanite association occurs in AI-Mg rich granulites...aluminous metapelites at In Hibaou (NW Hoggar). Sapphirine is characteristically present in those rocks as a...geothermometers and geobarometers to the observed parageneses in the two metamorphic events gives the following P-T...are in general agreement with those deduced from associated pyrigarnites. K E Y WORDS Algeria Hoggar |  | | Journal (article/letter/editorial) | | Springer-Verlag 1983 Deformation and Related Radiochronology in a Late Pan-African Mylonitic Shear Zone, Adrar des...Abstract. The influence of a deformation on the zircon U/ Pb system was studied using the example of the...fracturation of the crystals and dispersion of the fragments in the ductile matrix. An equilibrium grain size was...the initial size of the zircons and of the strain. In order to establish an accurate radiochronology of...zircons. In agreement to previous U - Pb, Rb - Sr and S m - Nd data, the present results show that in the |  | | Journal (article/letter/editorial) | | associated carbonatites (In Ouzzal Proterozoic granulites, Hoggar, Algeria) S . F OU RC A DE , 1 J ....B.P. 9, Dar el Beida, Algiers, Algeria A B S TR A CT The In Ouzzal granulitic unit (IOGU ) consists...metamorphism. Most of the isotopic variation in the marbles is explained in terms of pregranulitic features. Metasomatic...with respect to these elements, a relative depletion in Nb, Ta, Hf, Zr and Ti. The isotopic compositions...signatures. The zones of metasomatic alteration in the In Ouzzal granulites may be the deep-seated equivalents |  | Audibert, N., Bertrand, P., Hensen, B. J., Kienast, J.-R., Ouzegane, Kh. (1993) Cordierite-K-feldspar-quartz-orthopyroxene symplectite from southern Algeria: new evidence for osumilite in high-grade metamorphic rocks. Mineralogical Magazine, 57 (387) 354-357 doi:10.1180/minmag.1993.057.387.20 | Journal (article/letter/editorial) | | 354 SHORT COMMUNICATIONS observed in close association with the sodiumzippeite on several specimens...Botallackite was also recorded within the mine, but not in association with sodium-zippeite. Gypsum, johannite...earlier draft of this paper and for access to specimens in the NHM collections and Dr. G. Ryback for assistance...bestimmenden Mineralogie, Vienna. [Not seen: quoted in Frondel (1958)] James, C. C. (1947) Trans. Roy. Geol..., 5, 254; Chem. Phys., 32,248. [Not seen: quoted in Frondel (1958)] Robson, J. (1948) Trans. Roy. Geol |  | | Journal (article/letter/editorial) | | compositions in rhyo-ignimbrites in the In Hihaou (In Zize) Magmatic Center, central Ahaggar, Algeria Serge...Cedex 05, France Abstract. The 620 M.y.-old in Hihaou (In Zize) magmatic complex located at the north-western...north-western boundary of the Archaean In Ouzzal block (western Ahaggar), is composed of massive alkaline...granophyric and granitic body. The whole is preserved in a cauldron structure. Extrusive rocks are strongly...within the upper parts of plutonic complexes and in the surrounding rocks, by means of large-scale hydrothermal |
|
