 | | Journal (article/letter/editorial) | | granitic post-collisional Tin Zebane dyke swarm žPan-African Tuareg shield, Algeria /: prevalent mantle signature...December 1997; accepted 30 June 1998 Abstract The Tin Zebane dyke swarm was emplaced at the end of the Pan-African...remobilized at the end of the Precambrian. The Tin Zebane swarm was emplaced during post-collisional sinistral...contamination occurred in the genesis of the Tin Zebane swarm. Even the samples showing evidence of fluid...effects due to late cumulates comprising aegirine, zircon, titanite, allanite and possibly fergusonite, separated |  | | 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” |  | | Journal (article/letter/editorial) | | deposit contains mainly U6+ minerals. In the Arlit district, the uranium deposits show a typical U–Zr–Zn–Mo–V...Tagora Group, the uranium deposits in the Akokan district are located in the organic-matter-rich Guezouman...sandstones, and the uranium deposits in the Arlit district occur in the Tarat Formation (Fig. 2). Only the...(1989) Hoggar Immezzarene Taourirts " Tioueine Tin Zebane batholith granite " syenite granite U–Pb Rb...present in all rock types, contrary to the case of zircon, usually considered in such provenance studies |  | | Journal (article/letter/editorial) | | layered intrusions ŽPan-African belt, Hoggar, Algeria.: evidence for post-collisional continental tholeiitic... Mendes, P.P. Simoes ˜ and J.M. Bertrand, U–Pb zircon and monazite geochronology of post-collisional...granitic post-collisional Tin Zebane dyke ´ swarm ŽPan-African Tuareg shield, Algeria.: prevalent mantle signature...post-collisional syn-shear Tioueine pluton ŽWestern Hoggar, Algeria. . . . . . . . . . . . . . . . . . . . . . . ....Caldear Volcanic Group, Neogene Alboran ´ volcanic province, southeastern Spain . . . . . . . . . . . 563 |  | Bosch, Delphine, Hammor, Dalila, Bruguier, Olivier, Caby, Renaud, Luck, Jean-Marc (2002) Monazite “in situ” 207Pb/206Pb geochronology using a small geometry high-resolution ion probe. Application to Archaean and Proterozoic rocks. Chemical Geology, 184 (1) 151-165 doi:10.1016/s0009-2541(01)00361-8 | Journal (article/letter/editorial) | | Université d’Annaba, B.P. 12, El Hadjar Annaba, Algeria c Service ICP-MS, ISTEEM, Université Montpellier...a pelitic metatexite from Northwestern Hoggar (Algeria), contains rounded metamorphic monazites that provide...as a geochronometer and this mineral is, after zircon, probably the most used U-rich phase in geochronology...a relatively simple behaviour in comparison to zircon and is often found in concordant position in the...system. In contrast to silicate minerals such as zircon, which have a tendency to become metamict, monazite |  | Decrée, Sophie, Marignac, Christian, Liégeois, Jean-Paul, Yans, Johan, Ben Abdallah, Randa, Demaiffe, Daniel (2014) Miocene magmatic evolution in the Nefza district (Northern Tunisia) and its relationship with the genesis of polymetallic mineralizations. Lithos, 192. 240-258 doi:10.1016/j.lithos.2014.02.001 | Journal (article/letter/editorial) | | com/locate/lithos Miocene magmatic evolution in the Nefza district (Northern Tunisia) and its relationship with the...Nefza Tunisia a b s t r a c t The Nefza mining district in Northern Tunisia comprises late Miocene (Serravallian...lithosphere–asthenosphere boundary. In the Nefza mining district, magmatic rock emplacement has enhanced hydrothermal...rights reserved. 1. Introduction The Nefza mining district of Northern Tunisia (Fig. 1), although extending...asthenosphere. These events started in Central Eastern Algeria during the Langhian age (16–14 Ma; lower Miocene) |  | | Journal (article/letter/editorial) | | ´ ´´ Laouni ŽLa., Iskel ŽIsk., In Teidini ŽIt., Tin Zaouatene ŽZa., Tirek ŽTir., Ahnet ŽAh., In Ouzzal...the eastern Tuareg terranes ŽEastern Hoggar in Algeria and Aır ¨ in Niger. and the East Saharan craton...Black, 1987.. The emplacement of this ´ alkaline province is linked to post-collisional stress reversals...trends. This is mainly due to the saturation in zircon at intermediate compositions. As a consequence...concentration of Zr at which the saturation in zircon occurs can be used to determine the temperature |  | | Journal (article/letter/editorial) | | the WAC occurs north, and not south, of Ougarta (Algeria). Support for this model is provided by geological...basement. A recent geochronological study (U– Pb on zircon; Aı̈t Malek et al., 1998) has shown the presence...1999), also occur in the Saghro region and U– Pb on zircon age determinations on plutons show they are late...1994) and the huge alkaline–peralkaline magmatic province, associated with late movements along 296 N...a similar situation? The AAMF continues SE to Algeria, extending to the SW of the Ougarta area (Fig. |  | | Journal (article/letter/editorial) | | (Avigad et al., 2003; Kolodner et al., 2006) and Algeria (Williams et al., 2002; Linemann et al., 2011)...Geyer et al., 2008; Nance et al., 2008), detrital zircon U–Pb geochronology is an important tool in detecting...2010, 2008; Drost et al., 2011). Because detrital zircon U–Pb geochronology from Cambro-Ordovician sandstone...et al., 2006; Linnemann et al., 2011), detrital zircon age spectra from peri-Gondwana terranes were usually...North Gondwana. Herein we verify whether detrital-zircon age data from Cambrian overstep sequences in Morocco |  | Gladkochub, D.P., Wingate, M.T.D., Pisarevsky, S.A., Donskaya, T.V., Mazukabzov, A.M., Ponomarchuk, V.A., Stanevich, A.M. (2006) Mafic intrusions in southwestern Siberia and implications for a Neoproterozoic connection with Laurentia. Precambrian Research, 147 (3) 260-278 doi:10.1016/j.precamres.2006.01.018 | Journal (article/letter/editorial) | | Zircons from one Group 3 dyke provided a SHRIMP U–Pb zircon age of 511 ± 5 Ma, similar to the age of regional...Australia include the 1075 Ma Warakurna Large Igneous Province (Wingate et al., 2004), 825 Ma Gairdner dykes...2000), and the 511 Ma Kalkarinji Large Igneous Province (Hanley and Wingate, 2000; 261 Glass, 2002)...biotite, chlorite, quartz, Fe–Ti oxides, apatite, and zircon. Northwest-trending dolerite dykes (Group 3) are...interstitial quartz, chlorite, albite, apatite, titanite, zircon, and Fe–Ti oxides. The centres of most Group 3 |  | Deng, Yu-Feng, Song, Xie-Yan, Chen, Lie-Meng, Zhou, Taofa, Pirajno, Franco, Yuan, Feng, Xie, Wei, Zhang, Dayu (2014) Geochemistry of the Huangshandong Ni–Cu deposit in northwestern China: Implications for the formation of magmatic sulfide mineralization in orogenic belts. Ore Geology Reviews, 56. 181-198 doi:10.1016/j.oregeorev.2013.08.012 | Journal (article/letter/editorial) | | 1989; Liu et al., 2005). SHRIMP U–Pb dating of zircon from the Huangshandong intrusion yielded an age...intrusive rocks of the Permian Tarim large igneous province, the Huangshandong intrusion is characterized...J.L., Liu, D.Q., Tang, Y.L., Zhou, R.H., 2005. Zircon SHRIMP U–pb dating and its geological significance...eastern Tianshan Belt, Northwest China: geochemistry, zircon U–Pb geochronology and implications for the Paleozoic...layered intrusions (Pan-African belt, Hoggar, Algeria): evidence for post-collisional continental tholeiitic |  | Lan, Ting-Guang, Fan, Hong-Rui, Santosh, M., Hu, Fang-Fang, Yang, Kui-Feng, Yang, Yue-Heng, Liu, Yongsheng (2011) Geochemistry and Sr–Nd–Pb–Hf isotopes of the Mesozoic Dadian alkaline intrusive complex in the Sulu orogenic belt, eastern China: Implications for crust–mantle interaction. Chemical Geology, 285 (1) 97-114 doi:10.1016/j.chemgeo.2011.03.013 | Journal (article/letter/editorial) | | The high crystallization temperatures revealed by zircon saturation thermometry and low pressures suggested...quartz and biotite and accessory titanite, apatite, zircon and magnetite. The subhedral– anhedral feldspars...biotite and hornblende and accessory titanite, zircon and magnetite. The subhedral–anhedral feldspars...isotope analyses; and 40–60 micron mesh crushings for zircon separation and U–Pb dating and Hf analyses. 4.1...cathodoluminescence (CL) images of zircon grains Mineral compositions and CL images of zircon grains were obtained |  | | Journal (article/letter/editorial) | | minerals include magnetite, sphene, apatite and zircon. The ma®c enclaves hosted by the trondhjemite-tonalite...accessory magnetite, ilmenite, sphene, apatite and zircon. Poikilitic plagioclase inclusions in some of the...Pan-African post-collision peralkaline granites from Algeria (Fig. 5b). This may indicate an alkaline to slightly...suggests fractionation of plagioclase, K-feldspar, and zircon. The ma®c enclaves have major and trace element...evolution of Pan-African peralkaline granites from Algeria (Hadj-Kaddour et al., 1998). The Kab Amiri granitoids |  | | Journal (article/letter/editorial) | | melt, such as monazite, allanite, titanite, or zircon, is inhibited in peralkaline melts until the latest...and felsic volcanic rocks of the Etendeka-Paraná province and with other Early Cretaceous intrusive complexes...including HFSE-bearing silicates and oxides like zircon, thorite, pyrochlore, rutile, and wulfenite are...Pyrochlore was observed as an inclusion in zircon, which suggests that zircon postdates pyrochlore in these rocks...properties, we tentatively identify these crystals as zircon. All further homogenization runs were performed |  | Toummite, A., Liegeois, J. P., Gasquet, D., Bruguier, O., Beraaouz, E. H., Ikenne, M. (2013) Field, geochemistry and Sr-Nd isotopes of the Pan-African granitoids from the Tifnoute Valley (Sirwa, Anti-Atlas, Morocco): a post-collisional event in a metacratonic setting. Mineralogy and Petrology, 107 (5) 739-763 doi:10.1007/s00710-012-0245-3 | Journal (article/letter/editorial) | | Imourkhssen granite have been dated by LA-ICPMS on zircon at 558±2 Ma and 561±3 Ma, respectively. These granitic...identify the source of the magmas. Then, we present zircon U-Pb ages from these rocks and a modelling of the...and 605±9 Ma close to the Zenaga basement (U-Pb zircon SHRIMP dates; Thomas et al. 2002). Finally the...anhedral megacrysts. Accessory minerals are apatite, zircon and epidote with rare titanite. Post-collisional...al. The Amassine magmatic suite LA-ICP-MS U-Pb zircon dating The main pluton of this suite is the Imourkhssen |  | | Journal (article/letter/editorial) | | garnet (Y, HREE, Sc), rutile (Ti, Nb, Ta) and zircon (Zr, Hf ) at eclogite-facies conditions. Omphacite...the P–T–t evolution of a subduction complex: U–Pb zircon ages will date the high-pressure event if U–Th...U–Th characteristics and REE analyses constrain zircon growth to being metamorphic and essentially synchronous...in Zr content of rutile grown in the presence of zircon and quartz are mainly attributable to differences...Thomas, J.B., 2006. Crystallization thermometers for zircon and rutile. Contrib. Mineral. Petrol. 151, 413–433]) |  | | Journal (article/letter/editorial) | | and accessory amounts of rutile, sphene, apatite, zircon, and calcite. Based on modes of the essential minerals...post-Cenomanian (Whitney et al. 2003; U-Pb SHRIMP zircon age of 91±2 Ma) times. The CAG intrudes both the...Accessory minerals are Ti-rich phases, apatite, zircon and pyrite. Sphene with strong pleochroism is the...sporadic apatite aggregates and pyrite rarely occur. Zircon crystals were too tiny to be petrographically identified...basaltic components. However, Fe-Ti oxides, apatite, zircon and sphene of the studied rocks may require an |  | Zhao, Yun, Xue, Chunji, Symons, David T.A., Zhao, Xiaobo, Zhang, Guozhen, Yang, Yongqiang, Zu, Bo (2018) Temporal variations in the mantle source beneath the Eastern Tianshan nickel belt and implications for Ni–Cu mineralization potential. Lithos, 314. 597-616 doi:10.1016/j.lithos.2018.06.011 | Journal (article/letter/editorial) | | layered sequence and deeper dike-like unit. Precise zircon U–Pb dating yielded ages of 381.0 ± 1.3 and 377...fall outside of these fields. Systematic in situ zircon O and Hf isotope analyses from the Devonian mafic–ultramafic... clinopyroxene mineralogical compositions, and zircon U–Pb ages and Hf–O isotopic data are presented...and Hf–O isotopic analysis of zircons SC RI PT Zircon grains were separated using standard density and...magnetic separation techniques. These grains and the zircon standards Penglai and Qinghu were mounted in epoxy |  | | Journal (article/letter/editorial) | | Santa Catarina, southern Brazil: U–Pb LA-MC-ICP-MS zircon geochronology of coeval mafic–felsic magmatism related...Syntectonic granite Zircon U–Pb LA-MC-ICP-MS Pluton growth a b s t r a c t LA-MC-ICP-MS U–Pb zircon dating was...peraluminous granites. Although ca. 650 Ma inherited zircon components are identified in granites from both...in each domain are revealed by the patterns of zircon inheritance, indicating different crustal sources...importance of detailed field work and in situ U–Pb zircon dating to obtain magmatic crystallization ages |  | Merdith, Andrew S., Collins, Alan S., Williams, Simon E., Pisarevsky, Sergei, Foden, John D., Archibald, Donnelly B., Blades, Morgan L., Alessio, Brandon L., Armistead, Sheree, Plavsa, Diana, Clark, Chris, Müller, R. Dietmar (2017) A full-plate global reconstruction of the Neoproterozoic. Gondwana Research, 50. 84-134 doi:10.1016/j.gr.2017.04.001 | Journal (article/letter/editorial) | | Neoproterozoic Eastern Ghats Belt of India with the Rayner Province of CE Antarctica. C-SF was attached to Rodinia...coeval growth in Amazonia (in the Ventauri-Tapajos province), if they were in the SAMBA position, suggesting...Siberia (e.g. the ca. 725 Ma Irkutsk large-igneous-province (LIP), Ernst et al. 2013; 2016) with the Franklin...the Palaeozoic Gondwanan configuration. Detrital zircon and palaeontology are used to infer affinity of...outboard of northwest India, due to a peak of detrital zircon ages at ca. 950 Ma, suggesting input from the subduction |
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