 | | Journal (article/letter/editorial) | | Territoire, BP 32, El Alia Bab Ezzouar 16 111 Algiers, Algeria b a r t i c l e i n f o Article history: Received...evolution of LATEA (Central Hoggar, Tuareg shield, Algeria) . . . . . . . . Magmatic metacratonization of...continental interior: the Murzukian evolution of Djanet/Edembo terranes (Eastern . . . . . . . . . ..... . . . . 225 227 . . . . . . . . . Hoggar, Algeria) . 228 230 ⁎ Corresponding author. E-mail addresses:...(Morocco) in the north, Trans-Saharan belt (from Algeria to Nigeria) in the east, Rockelides and the Bassarides |  | | Journal (article/letter/editorial) | | the possibility of an Archean basement in the Oumelalen domain has been pointed out by Latouche (1972);...gneisses u n c o n f o r m a b l y underlies the Oumelalen Formation (2000 m.y. old). T h e E b u r n e a...age: 2170 m.y.; Lancelot et al., 1973), but the Oumelalen granulites seem to be younger {1870 m.y. with...previously defined domains {except perhaps in the Djanet-Tiririne domain) a Tassendjanet-Arechchoum-type...paper, one can expect that the Egere--Aleksod, Oumelalen and Temasint domains could represent the main |  | Fezaa, Nassima, Liégeois, Jean-Paul, Abdallah, Nachida, Cherfouh, El Hadi, De Waele, Bert, Bruguier, Olivier, Ouabadi, Aziouz (2010) Late Ediacaran geological evolution (575–555Ma) 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) | | evolution (575–555 Ma) of the Djanet Terrane, Eastern Hoggar, Algeria, evidence for a Murzukian intracontinental...Géologie de l’ingénieur et Planétologie, USTHB, Algeria Isotope Geology, Royal Museum for Central Africa...Géographie, BP 32, El Alia, Bab Ezzouar, 16111 Alger, Algeria d Faculté des Sciences Biologiques et des Sciences...Géologie de l’ingénieur et Planétologie, USTHB, Algeria e SRK Consulting, 10 Richardson Street, West Perth...east, of the Aouzegueur, Edembo and Djanet Terranes. The Djanet Terrane is the easternmost Hoggar terrane |  | | Journal (article/letter/editorial) | | shear zones. In the Tuareg shield, mineralized quartz veins are associated with syntectonic granitoids...Pan African mega-shear zones. However, at the district scale, it is evident that the Pan African mega-shear...exploration targeting. Exploration particularly at district-scale might benefit from GIS-based prospectivity...and Cameroon through Chad, Niger, Mali, up to Algeria in North Africa (Castaing et al., 1993). Three...The Hoggar massif located in southern part of Algeria, the Adrar Iforars massif in northern part of Mali |  | | Journal (article/letter/editorial) | | al., 1966; ALL~GaE & CABY, 1972) and from the Oumelalen area in northeastern Hoggar (LATOUCHE& VIDAT....several places (Tassendjanet, In Ouzzal, Aleksod, Oumelalen) (ALL~CaE & CABY, 1972; BERTRAND • LASSERRE, 1976;...Hoggar shield. 1. Pharusian belt. 2. Polycyclie province of central Hoggar. 8. Eastern Hoggar including...ALLI~GRE & CASE, 1972), oldest basement of the Oumelalen area (LATOUCHE& VIDAL, 1974), Arechchoum unit...1970), Arechchoum Formation (BERTRAND, 1974), Oumelalen Formation (LATOUCHE, 1972); 361 Aufs~itzo 8 |  | | Journal (article/letter/editorial) | | and granulite-facies marbles of the Grenville Province. In 25 samples from the Adirondack Mountains,...granulite-facies marbles and talc-silicates of the Grenville Province that were metamorphosed at 1 Byr. Most samples...14.3 1.1 -2.5 3.6 23.7 1.5 -1.9 3.4 Grenoille Province. outside of the Adirondack Mountains 22.4 16.8...1Ocm in granulite facies marbles from Gour Oumelalen, Algeria. and Limecrest Quarry, near Franklin Furnace...assemblages from Algeria. Namibia. and New Jersey. Ten assemblages from marbles of Gour Oumelalen (Ahaggar. |  | | Journal (article/letter/editorial) | | earing assemblages at Laouni, Central Hoggar, Algeria M . GU I RA U D, 1 R . PO WE L L 2 A ND J. - Y...TR A CT In the Laouni region (Central Hoggar, Algeria), retrogression of high-grade orthopyroxene–cordieritebearing...EO L OG I CA L S E T TI N G The Central Hoggar Province is composed of an amalgamation of intensively...Pan-African orogeny at c. 600 Ma (Fig. 1A). This Province is supposed to have undergone thickening by thrusting...studies of some areas of the Central Hoggar Province: Gour Oumelalen (Latouche, 1978); Aleksod (Bertrand et |  | | Journal (article/letter/editorial) | | Geochemistry of Granulite Xenoliths from Central Hoggar (Algeria) - Implications for the Lower Crust A. Leyreloup...N'Addjer volcanic massifs in Central Hoggar, southern Algeria, include marie metaigneous and felsie metasedimentary...xenoliths are plagioclase and pyroxenes whereas quartz, feldspars, sillimanite, garnet and sapphirine...Tertiary alkali basalts from Central Hoggar, southern Algeria. Geology Neogene alkali basalts (Girod 1968) from...from the Touareg belt in 9 southern Algeria brought up to the surface numerous upper mantle and cognate |  | Doukkari, Sid Ali, Ouzegane, Khadidja, Godard, Gaston, Diener, Johann F.A., Kienast, Jean-Robert, Liégeois, Jean-Paul, Arab, Amar, Drareni, Amar (2015) Prograde and retrograde evolution of eclogite from Adrar Izzilatène (Egéré-Aleksod terrane, Hoggar, Algeria) determined from chemical zoning and pseudosections, with geodynamic implications. Lithos, 226. 217-232 doi:10.1016/j.lithos.2014.12.007 | Journal (article/letter/editorial) | | Adrar Izzilatène (Egéré-Aleksod terrane, Hoggar, Algeria) determined from chemical zoning and pseudosections..., B.P. 32 El Alia, Dar el Beida, Alger 16111, Algeria Institut de Physique du Globe de Paris, Sorbonne...Egéré-Aleksod terrane of the LATEA metacraton (Hoggar, Algeria) exposes one of the best preserved examples of...(M1), characterised by garnet, amphibole, epidote, quartz and rutile, the peak eclogite facies stage (M2)...consisting of omphacite, garnet, edenite, epidote, quartz and rutile, and the retrograde stage (M3), where |  | | Report (chapter) | | granulite-facies metapelites of Tidjenouine (Central Hoggar, Algeria): witness of the LATEA metacratonic evolution ABDERRAHMANE...a great diversity of minerals (garnet, biotite, quartz, sillimanite, gedrite, corundum, orthopyroxene...lithology The Tidjenouine area (Central Hoggar, Algeria; Fig. 1) is located in the NW part of the Laouni...recorded the Pan-African orogeny; (2) in the Gour Oumelalen region (NE LATEA), a series of granulitic rocks...to coarse-grained migmatitic orthogneiss made of quartz þ K-feldspar þ plagioclase þ biotite with minor |  | Barbey, Pierre, Bertrand, Jean-Michel, Angoua, Serge, Dautel, Danielle (1989) Petrology and U/Pb geochronology of the Telohat migmatites, Aleksod, Central Hoggar, Algeria. Contributions to Mineralogy and Petrology, 101 (2) 207-219 doi:10.1007/bf00375307 | Journal (article/letter/editorial) | | the Telohat migmatites, Aleksod, Central Hoggar, Algeria* Pierre Barbey 1, 2, Jean-Michel Bertrand 2 Serge...granulite-facies rocks of the Tamanrasset and Oumelalen areas (Latouche and Vidal 1974; Bertrand et al...the 2.0 Ga formations in the Tamanrasset and Oumelalen areas (Latouche 1978), which they closely resemble...map are Aleksod (AL), Arefsa (AR), Egere (EG), Oumelalen (OUM) and Tamanrasset (TAM). B Geological sketch...mineralogical compositional range in any layer is quartz (15 25 vol.%), K-feldspar (10 20%), plagioclase |  | Perron, Paul, Guiraud, Michel, Vennin, Emmanuelle, Moretti, Isabelle, Portier, Éric, Le Pourhiet, Laetitia, Konaté, Moussa (2018) Influence of basement heterogeneity on the architecture of low subsidence rate Paleozoic intracratonic basins (Reggane, Ahnet, Mouydir and Illizi basins, Hoggar Massif). Solid Earth, 9 (6). 1239-1275 doi:10.5194/se-9-1239-2018 | Journal (article/letter/editorial) | | basins (Figs. 1 and 2) are located in southwestern Algeria, north of the Hoggar Massif (Ahaggar). They are...al., 1959), (3) a geological map (1/200 000) of Algeria (Bennacef et al., 1974; Bensalah et al., 1971)...Tchilit (Tch), Aouzegueur (Ao), Edembo (Ed), and Djanet (Dj). Shear zone and lineament names and abbreviations:...sandstones, ironstones, phosphorites, corroded quartz grains, calcareous matrix, brachiopod coquinas...coquinas, phosphatized pebbles, hematite, azurite, quartz Biotic/non-biotic grains Criteria & characteristics |  | | Journal (article/letter/editorial) | | recent alkaline basalt-trachytephonolite volcanic province. The crystalline basement is surrounded and covered...anorthosite-bearing alkaline ring-complexes of the Niger-Nigeria Province (Black, 1965; Bowden et al., 1987; Demaiffe et...post-kinematic calc-alkaline granitoids ranging from quartz-diorite to leucocratic monzogranite with predominance...(Dabaga-east type). These granitoids typically display quartz and K-feldspar megacryst-rich dark microgranular...followed northwards nearly 1000 km to Hoggar in Algeria where identical facies have been described (Caby |  | | Journal (article/letter/editorial) | | mostly as intergrowths with pyroxene, scapolite, and quartz. Samples were collected for isotope analysis from...associated rocks of the Scafell area, English Lake District. Q. J. Geol. Sot. London CXlIl (part 4). 377 417...dans les marbres metamorphiques des Gour Oumelalen (Ahaggar. Algeria). des Adirondacks (New Jersey, U.S...(1913) Mirlrs trnd .Miniry III the (Engqti\trl Lake District. 164~~. Moss. RANKAMA K. (1950) Corycium Resuscitatum:...XXI, part Il. 281. black shale of the Iron River district, northern Michigan. Geol. Sot. Am. Bull. 68, 1293-1304 |  | | Journal (article/letter/editorial) | | south-eastem extension of the Canadian Grenville Province. The region experienced a complex history of orogenic...weight in CuO. This mixture was sealed at vacuum in quartz glass tubes and combusted at 850" C for a minimum... C A R B O N ISOTOPE THERMOMETRY, N Y loading, quartz tubes were heated in air at 850°C for >10h to remove...assemblages of the following minerals: phlogopite, quartz, diopside, titanite, humite, tremolite, forsterite...Sri Lanka Eknheimer (1988) (4) 4.0-2.5 Gour Oumelalen. Algeria Pineau el a/. (1976) (10) 4.9-2.3 Iwea |  | Drost, Kerstin, Gerdes, Axel, Jeffries, Teresa, Linnemann, Ulf, Storey, Craig (2011) Provenance of Neoproterozoic and early Paleozoic siliciclastic rocks of the Teplá-Barrandian unit (Bohemian Massif): Evidence from U–Pb detrital zircon ages. Gondwana Research, 19 (1) 213-231 doi:10.1016/j.gr.2010.05.003 | Journal (article/letter/editorial) | | fluvial-dominated shelf environment, Q:F: L = 86:14:0 Isolated quartz grains and fine-grained rock fragments in finegrained...such ages are for example currently exposed in Gour Oumelalen in NE Hoggar, in the Ouzzal massif in NW Hoggar...and are therefore assigned to the Mediterranean province fauna or referred to as peri-Gondwanan (e.g.,...Ordovician (its position within the mediterranean province, series division, benthic and pelagic associations)...Saharan metacraton, Eastern Hoggar, Tuareg Shield, Algeria: an AMS and U–Pb zircon age study. Tectonophysics |  | | Journal (article/letter/editorial) | | FROM THE ALEKSOD BASEMENT, CENTRAL HOGGAR, SOUTH ALGERIA VIOLAINE SAUTTER Laboratoire de Mindralogie, Musdum...from the Aleksod basement, Central Hoggar, south Algeria. In: D.C. Smith, G. Franz and D. Gebauer (Guest-Editors)...t i o n The central part of the Hoggar, south Algeria, is formed by a Precambrian polymetamorphic basement...association is the following: garnet + omphacite + quartz + zoisite ± amphibole. Accessory phases are rutile...phase, is often replaced by a pale-green amphibole. Quartz either crystallizes at the grain boundaries of |  | | Journal (article/letter/editorial) | | increasing meta amounts of chlorite, muscovite, albite, quartz morphic grade. Figure 1 shows the meta and sphene...marbles occur as thin muscovite+zoisite+albite+quartz+sphene. layers or in lenticular form (less than...et al., 1976; TAKASU and MAKINO, 1980; YOKOYAMA, quartz schist (1976), solved. the the origin of the...subordinate amounts of chlorite, muscovite, albite, quartz and sphene. Sample EA08 con tains grossular in...blende + epidote + chlorite + muscovite + albite + quartz (HIDE, 1954), suggesting the metamorphic grade |  | Arneth, J.D., Schidlowski, M., Sarbas, B., Goerg, U., Amstutz, G.C. (1985) Graphite content and isotopic fractionation between calcite-graphite pairs in metasediments from the Mgama Hills, Southern Kenya. Geochimica et Cosmochimica Acta, 49 (7) 1553-1560 doi:10.1016/0016-7037(85)90260-1 | Journal (article/letter/editorial) | | impure varieties containing conspicuous amounts of quartz, plagioclase, mica. kyaniie, scapoiite and graphite...metamorphic sequence and tremotite + 3 calcite + 2 quartz to obtain inde~nde~t constraints on the tem~mtures...work hitherto conducted. Accordingly. carcalcite i quartz - wollastonite + CO? bon and oxygen isotope anaiyses...Table I. The gr&zir~ sch&.r are composed mainly of quartz, alkali feldspar. mica and graphite. while plagiociase...minor (though varying) arno~~ts. The gnejssrs with quartz and alkali feldspar as main constituents contain |  | | Book | | diverse types of metallic deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan, and Eritrea...tungsten-gold and lead-zinc-silver deposits of the Tighza district of Morocco, proposing links to granite-related...polymetallic vein deposits of the Edough-Cap de Fer district of Algeria, including fluid inclusion data that support...porphyry–epithermal transition recorded in the Ouixane iron district of Morocco, using new geochronological and fluid...(±gold ±silver) deposits of the famous Bou Azzer district in Morocco, and proposes a long-lived, magmatic-hydrothermal |  | | Journal (article/letter/editorial) | | amounts of graphite. with or wtthout trace amounts of quartz, talc, tremolite, diopside, forsterite. clinohumite...'OrSterite-ltalc: tremollte-phlogoolte tremolite-talc tre~llte-quartz-phl"go",.,. ~luartz-talc talc-tremol~te :alc-trerno...hydr~h~o~c acid. An aliquot of graphite was put into a quartz vessef. and was burnt to CO? in the pure oxygen...Cc&cite, Di4iopside. Do-doiomite, F+forsterite, Qz-quartz. Tc-talc, Tr-tnmolite. light fraction separated...central Japan. A“&+ values from the Kamioka mining district and the adjacent Takahamgawa area are located |  | | Journal (article/letter/editorial) | | mainly consists of calcite, with minor amounts of quartz, talc, phlogopite, and carbonaceous material. The...The pelitic schist of the GG-group contains quartz, albite, white mica, biotite, chlorite, calcite, titanite...pelitic schist/ phyllite of the G-group consists of quartz, albite, white mica, calcite, titanite, and carbonaceous...PP-group comprises chlorite-illite, kaolinite, quartz, albite, calcite, and carbonaceous material. The...the Z-group contains illite/smectite, kaolinite, quartz, feldspar, calcite, and carbonaceous material. |  | | Book | | 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...participants from 15 Arab and Western countries (Morocco, Algeria, Tunisia, Egypt, Sudan, Yemen, the Emirates, Libya...Magmatism in the In Ouzzal Terrane (Tuareg Shield, Algeria): Witness of the Metacratonisation of a Rigid Block” |  | Bea, F., Montero, P., Anbar, M. Abu, Molina, J.F., Scarrow, J.H. (2011) The Bir Safsaf Precambrian inlier of South West Egypt revisited. A model for ~1.5Ga TDM late Pan-African granite generation by crustal reworking. Lithos, 125 (3) 897-914 doi:10.1016/j.lithos.2011.05.004 | Journal (article/letter/editorial) | | composed of a gneissic granoblastic groundmass of quartz, plagioclase (An32–21), scarce K-feldspar, biotite...abundant myrmekitic structures; it is composed of quartz, oligoclase (An27–21), Kfeldspar, and scarce crystals...mesosome is gneissic granoblastic, composed of quartz, oligoclase (An21–16), microcline, biotite, minor...leucosome has a finer grain size; it is composed of just quartz, oligoclase–albite, and microcline, with very little...crystals of quartz and perthitic Carlsbad-twinned Kfeldspar within a medium-grained groundmass of quartz, oligoclase– |  | Liu, D.Y., Shen, Q.H., Zhang, Z.Q., Jahn, B.M., Auvray, B. (1990) Archean crustal evolution in China: U-Pb geochronology of the Qianxi Complex. Precambrian Research, 48 (3) 223-244 doi:10.1016/0301-9268(90)90010-n | Journal (article/letter/editorial) | | Complex (formerly the Qianxi Group) in eastern Hebei Province is a key terrain for studying the Archean crustal...Publishers B.V. 224 D.Y. LIU ET AL. Hebei Province, Archean granulite and amphibolite facies gneisses...Fig. 1. Simplified geologic map of eastern Hebei Province (after Sun and Lu, 1985). This map is only used...association) north of Huangbaiyu village. It consists of quartz, fuchsite, sillimanite, epidote and accessory zircon...contains phenocrysts of K-feldspar in an assemblage of quartz, plagioclase, microcline, biotite, and accessory |
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