 | | Journal (article/letter/editorial) | | Bir102, Ali, Yemen 137 LETTER Clinopyroxene-rich lherzolite xenoliths from Bir Ali, Yemen possible...possible product of peridotite/melt reactions Murad ALI and Shoji ARAI Department of Earth Sciences, Kanazawa...− Quaternary basalts from Bir Ali, the Shabwa Governorate, southern Yemen, were studied to examine upper...ratios (> 1), which are characteristic of the Bir Ali xenolith suite, contain lower Fo contents of olivine... Metasomatism, Rifted continental margins, Bir Ali, Yemen INTRODUCTION Major mantle processes such as |  | | Journal (article/letter/editorial) | | Murad Ali* and Shoji Arai** * Department of Geology, University of Taiz, P.O. Box 5607, Taiz, Yemen Department...xenoliths hosted by Pliocene-Quaternary basalts from Yemen. The amphibole is Cr-rich magnesiokatophorite high...Na-rich carbonatite in the upper mantle. Keywords: Yemen, Ataq, Peridotite xenoliths, Magnesiokatophorite...1982; Roden et al., 1984; Menzies et al., 1987; Ali and Arai, 2007). Mantle metasomatism, which enriches...analyses of hydrous mantle xenoliths from Ataq, Yemen, reveals the presence of an unusual hydrous phase |  | | Journal (article/letter/editorial) | | hydrous and anhydrous peridotite xenoliths from Ataq, Yemen, from Eifel, Germany, and from Massif Central, France...different lithospheric mantle regions: (i) Ataq, Bir Ali (Yemen), (ii) Dreis Weiher, Meerfelder Maar (Eifel...respectively, as discussed below (Table 1). 2.1. Yemen: JK2, JK3, JK7, JK8 and BA8 Mantle xenoliths were...fields on the south coast of Yemen (Chazot et al., 1996b, 1997): Bir Ali (BA8) and Ataq (JK7 and JK8)...samples from Yemen, (BA8, JK7, JK8), see also Chazot et al. (1997). Yemen Ataq Bir-Ali Eifel Meerfelder |  | | Journal (article/letter/editorial) | | of structural observations that show that the harzburgite is older than the lherzolites. Refertilization...Zealand contain peridotite spinel-facies dunite, harzburgite, lherzolite, and wehrlite mantle xenoliths (Fig...2005); Kola Peninsula (Beard et al. 2007); Bir Ali, Yemen (Ali and Arai 2007; Sgualdo et al. 2015); Damara...for a large number of spinel lherzolite and harzburgite xenoliths around the world. In general, the results...295–308. Ali, M., S. Arai 2007: Clinopyroxene-rich lherzolite xenoliths from Bir Ali, Yemen – possible |  | Grégoire, M., Langlade, J.A., Delpech, G., Dantas, C., Ceuleneer, G. (2009) Nature and evolution of the lithospheric mantle beneath the passive margin of East Oman: Evidence from mantle xenoliths sampled by Cenozoic alkaline lavas. Lithos, 112 (3) 203-216 doi:10.1016/j.lithos.2009.02.002 | Journal (article/letter/editorial) | | Microphotographs. A: An angular-shaped protogranular harzburgite xenolith (size of the xenolith: 13 mm × 6 mm);...diamonds: Spitsbergen mantle lherzolite and harzburgite xenoliths from Ionov et al. (2002a); Filled squares:...Safarjalani, 2002; Ismail et al., 2008 and Yemen, Chazot et al., 1996 and Ali and Arai, 2007). clinopyroxene abundance...15 wt.%) orthopyroxene. On the other hand the harzburgite 04OM64b1 contains the less aluminous (2 wt.%)...samples are out of this Cr-number range. The harzburgite 04OM62b1 and the lherzolite 04OM62b2 respectively |  | | Journal (article/letter/editorial) | | 159-179 Silicate glasses in spine1 lherzolites from Yemen: origin and chemical composition Gilles Chazot a’*...lherzolites found in alkali basalts from Southern Yemen contain melt-pockets with silicate glasses from...mantle conditions. Comparison of the glasses in the Yemen lherzolites with published chemical compositions...Mantle xenoliths from the Ataq and Bir Ali volcanic fields of Southern Yemen contain such quenched glasses...Mantle xenoliths in Yemen have been collected in two different Quaternary volcanoes, Bir Ali on the southern |  | | Journal (article/letter/editorial) | | plagioclase-free spinel peridotites (lherzolite to harzburgite). Cr and Mg numbers (Cr#, Mg#) of Cr-spinel vary...a carbonatitic melt, for example xenoliths from Yemen and Tanzania (Chazot et al., 1994; Rudnick et al...widespread volcanic province that extends from Yemen through Saudi Arabia, Jordan, Syria to Turkey covering...Rollinson, 2009; Krienitz and Haase, 2011), in Yemen (e.g. Sgualdo et al., 2015), in Jordan (Nasir and...lherzolite, clinopyroxene-poor lherzolite rn and harzburgite. Modal compositions of the peridotite xenoliths |  | | Report (issue) | | Volcanic rifted margins also characterize Ethiopia-Yemen, India-Australia, and Africa-Madagascar. The transition...the betterknown volcanic rifted margins, Ethiopia-Yemen, the Atlantic margins, and the Australia-India conjugate...volcanism to synrift domino fault-block terranes (Yemen) and subaerial seaward-dipping re×ector series (Ethiopia)...volcanic rifted margin based on data from Ethiopia-Yemen and the Atlantic margins. Volcanic rifted margin...150 250 200 Ethiopia Yemen Southern Red Sea Oceanic Crust Ethiopia - Yemen Flood Volcanism Northeast |  | | Journal (article/letter/editorial) | | Ahmed Hassan Ahmed, Shehta Abdallah, Kamal Ahmed Ali, Minghua Ren PII: DOI: Reference: S0024-4937(19)30252-X...cite this article as: A.H. Ahmed, S. Abdallah, K.A. Ali, et al., Nature and evolution of the Precambrian...fertile lherzolite and moderately depleted AC harzburgite, (2) spinel-rich clinopyroxenite cumulates, lower...Jordan, Syria, AC Lebanon, Saudi Arabia, and Yemen (Fig. 1). The volcanic eruptions are mostly initiated...collected mantle xenoliths include lherzolite, harzburgite, and clinopyroxenite. The color of mantle xenoliths |  | | Journal (article/letter/editorial) | | that many Gondwana CFB provinces (e.g. Ethiopia-Yemen, Deccan, and Karoo) are compositionally zoned and...for other Gondwana provinces, such as Ethiopia-Yemen, Deccan and Karoo, where CFB generation was triggered...other Gondwana CFB provinces, such as Ethiopia-Yemen and Deccan (Natali et al 2016, 2017). Coherently...G., Siena, F., 2017. Comparison among Ethiopia-Yemen, Deccan, and Karoo continental flood basalts of...Afro-Arabian domain: insights from Bir Ali mantle xenoliths (Yemen). Tectonophysics 650, 3–17. Stanley |  | | Journal (article/letter/editorial) | | G., Siena, F., 2017. Comparison among Ethiopia-Yemen, Deccan, and Karoo continental flood basalts of...Afro-Arabian domain: Insights D from Bir Ali mantle xenoliths (Yemen). Tectonophysics 650, 3-17. PT E ...realm PT that consist of Sp- to Gt-lherzolite/harzburgite variably enriched by metasomatic phases RI |  | | Journal (article/letter/editorial) | | O2） （A-type （Δlog FMQ＝−4〜−10）を 示 す か ん ら ん 岩 harzburgite）を報告している． 議 にやや先行するマントルでの諸過程 （スラブからの流体供給 グマ...Kaeser et al., 2006; イエ とほぼ同様である． メン, 880–1130°C; Ali and Arai, 2007） ただし，野山岳のかんらん岩捕獲岩は 1200°C 前後の例外 ．これは，アイフェル...（Comments on Garnet岩 （山元ら , 1999） bearing spinel harzburgite xenolith from Arato-yama alkali basalt, southwest...219–232. Ali, M. and Arai, S., 2007, Clinopyroxene-rich lherzolite xenoliths from Bir Ali, Yemen-possible...Arai, S., 1975, Contact metamorphosed dunite-harzburgite complex in the Chugoku district, western Japan |  | | Journal (article/letter/editorial) | | spreading centres. The AN transitional (Ethiopian and Yemen trap series) to tholeiitic (Red Sea) volcanism is...such as mafic granulites from Tanzania, Sudan and Yemen. On this basis, we performed bulk mixing and as...contemporaneous derivatives of silicate melt harzburgite reaction. Journal of Petrology 45, 299–320. ...amphibole, and melt in natural spinel lherzolites from Yemen: Implications for wet melting of the lithospheric...AfroArabian domain: Insights from Bir Ali mantle xenoliths (Yemen). Tectonophysics 650, 3– 17. AC Shaw |  | | Journal (article/letter/editorial) | | in agreement with a formation through melt-harzburgite reactions. The preservation of this geochemical...peridotite sequence is composed of tectonized harzburgite and ultramafic cumulate rocks representing refractory...plutonic complex, Hamedan, Iran ALI A. SEPAHI Department of Geology, Bu-Ali Sina University, Hamedan, Iran...Conference Abstracts Mantle xenoliths from Bir Ali (Yemen) Pore-scale simulation of calcite dissolution...(*sglpla@unife.it) Mantle xenoliths from the Bir Ali diatrema (southern Yemen) consist of spinel peridotites and |
|
