 | | Journal (article/letter/editorial) | | concordant and discordant chromitites from Oman ophiolite are of low-pressure origin, containing primary...ネル は の岩石の生成環境の指示者として重要である(例えば， (Mg, Fe2＋ )(Cr, Al, Fe3＋ )2O4 と表記されるが，他に Ti, Mn, Zn なども含み，その化学組成は極めて多様なことか... 上部マントルの主要な構成要素であるかんらん岩にはク みクロムスピネルの Cr /( Cr＋ Al )原子比 0.5 前後)であ ロムスピネルが 2 体積程度以下含まれる。かんらん岩の ることが多い(Arai...場合がある する。ポディフォーム・クロミタイトについては， 1980 (Cassard et al. 1981)(Fig. 1)。前者を非調和性クロミタイ ト( concordant chromitite... et al., 1981)(Fig. ム・クロミタイトが形成される。ポディフォーム・クロミ 年代初頭にその岩脈状の形状(Cassard et al., 1981; Lago et al., 1982)が明らかにされ，1990 |  | | Journal (article/letter/editorial) | | formation of chromite-oversaturated magmas. Spandler et al. (2005) found a mixing trend for the bulk CE chemical...around the chromitite (e.g., Cassard et al., 1981; Lago et al., 1982) (Fig. 1). Following the hypothesis...Yurimoto, 1994; Zhou et 4 ACCEPTED MANUSCRIPT al., 1994) (Fig. 2). Since then, podiform chromitites...various types (e.g., Proenza et al., 1999; Uysal et al., 2005; Borisova et al., 2012; Ahmed and Habtoor, 2015)...ophiolites (e.g., Robinson et al., 2004; Yang et al., 2007, 2015; Yamamoto et al., MA 2009). The whole framework |  | Negishi, Hironori, Arai, Shoji, Yurimoto, Hisayoshi, Ito, Shoichi, Ishimaru, Satoko, Tamura, Akihiro, Akizawa, Norikatsu (2013) Sulfide-rich dunite within a thick Moho transition zone of the northern Oman ophiolite: Implications for the origin of Cyprus-type sulfide deposits. Lithos, 164. 22-35 doi:10.1016/j.lithos.2012.11.024 | Journal (article/letter/editorial) | | within a thick Moho transition zone of the northern Oman ophiolite: Implications for the origin of Cyprus-type...transition zone Cyprus-type sulfide deposits Oman ophiolite a b s t r a c t Peculiar dunites, in part...transition zone (MTZ) are found along Wadi Thuqbah in the northern Oman ophiolite. We discuss their relevance to...Mid-Atlantic Ridge (Hannington et al., 1998; Humphris and Cann, 2000; Humphris et al., 1995) as well as from ophiolites...ophiolites (e.g., Dergachev et al., 2010). Deep processes related to sea-floor sulfide deposit formation |  | | Journal (article/letter/editorial) | | the E‒W trend SC from Wadi Sayfayn, Wadi Bardah, and Jabal Al-Faliq to Wadi Al-Barramiyah, from east...[Cr/(Cr + Al)], 0.41–0.80, with low TiO2 (0.03 wt%), MnO (0. 3 wt%) and YFe [(Fe3+ /(Cr + Al + Fe3+)...increasing of their host-peridotite thickness from Northern to Southern Eastern SC Desert suggests that...Arabian-Nubian Shield (ANS). The ANS, which is the northern extent of the East African Orogen (550‒850 Ma)...formed in and close to the Mozambique Ocean (Fritz et al., 2013). The ED ophiolites were emplaced on the continent |  | | Journal (article/letter/editorial) | | harzburgite–dunite–chromitite complexes from the Neoproterozoic ophiolite, south Eastern Desert, Egypt: A possible recycled...high-Cr varieties. The average Cr-ratio (=Cr/(Cr + Al) atomic ratio) of chromian spinel in the chromitites...fertile mantle character with Al-rich chromian spinels (Cr-ratio = Cr/(Cr + Al) atomic ratio < 0.6), and... 1984; Arai, 1997a; Dilek and Thy, 1998; Arai et al., 2011). On the other hand, the refractory mantle...arc environments (e.g. Zhou et al., 1998; Dare et al., 2009; Arai et al., 2011). In many cases, ophiolites |  | | Journal (article/letter/editorial) | | in the Eastern Desert of Egypt, namely; Wadi Muweilha, Wadi Arayis and Gabal Kurbiyay. The present peridotites...lacking from the northern part. The best preserved ophiolitic successions are known from Wadi Ghadir, Fawakhir...1983; Zimmer et al. 1995; El-Sayed et al. 1999; Basta et al. 2011; Abdel-Karim et al. 2016; Abdel-Karim...Abdel-Karim and El-Shafei 2018; Azer et al. 2019). Serpentinites represent the most characteristic lithology...(e.g. Farahat et al. 2004; Abd El-Rahman et al. 2009a) or fore-arc (e.g. Stern et al. 2004; Geology Department |  | | Journal (article/letter/editorial) | | the Voidolakkos and Xerolivado mines, Vourinos ophiolite complex, Greece: implications for deformation-induced...Xerolivado districts, located in the Vourinos ophiolite complex, northwestern continental Greece, were...that shows a quite restricted range of Cr# [Cr/(Cr + Al)] values varying between 0.76 and 0.83, whereas Mg#...Paktunc, 1990; Pasava et al., 2011; Escayola et al., 2012; Shi et al., 2012; Ghosh et al., 2013; Najafzadeh...Najafzadeh and Ahmadipour, 2014; Zhou et al. 2014). These are generally referred to as podiform chromitites, being |  | Habtoor, Abdel Monem, Ahmed, Ahmed Hassan, Akizawa, Norikatsu, Harbi, Hesham, Arai, Shoji (2017) Chemical homogeneity of high-Cr chromitites as indicator for widespread invasion of boninitic melt in mantle peridotite of Bir Tuluha ophiolite, Northern Arabian Shield, Saudi Arabia. Ore Geology Reviews, 90. 243-259 doi:10.1016/j.oregeorev.2017.03.010 | Journal (article/letter/editorial) | | melt in mantle peridotite of Bir Tuluha ophiolite, Northern Arabian Shield, Saudi Arabia Abdel Monem...melt in mantle peridotite of Bir Tuluha ophiolite, Northern Arabian Shield, Saudi Arabia, Ore Geology...melt in mantle peridotite of Bir Tuluha ophiolite, Northern Arabian Shield, Saudi Arabia Abdel Monem...author: ahmh2jp@yahoo.com Abstract The Bir Tuluha ophiolite is one of the most famous chromitite-bearing occurrences...chromitite pods are of high-Cr variety; Cr-ratio (Cr/(Cr + Al) atomic ratio) show restricted range between 0.73 |  | | Book | | bin Said Al Shanfari Minister of Petroleum and Minerals The Speech of H.E. Said Bin Ahmed Al Shanfari...Symposium Your Royal Highness Sayed Fahad Bin Mahmoud al Said, Your Royal Highness Members of the Honourable...pleasure to welcome you in this scientific gathering in Oman which has been made possible through the directives...contribute to the advancement of earth sciences. We, in Oman look forward with keen interest to the outcome of... I wish to thank the Ministry of Defence, Royal Oman Police and the Ministry of Information for their |  | Pujol-Solà, Núria, Proenza, Joaquín, Garcia-Casco, Antonio, González-Jiménez, José, Andreazini, Aleu, Melgarejo, Joan, Gervilla, Fernando (2018) An Alternative Scenario on the Origin of Ultra-High Pressure (UHP) and Super-Reduced (SuR) Minerals in Ophiolitic Chromitites: A Case Study from the Mercedita Deposit (Eastern Cuba). Minerals, 8 (10). 433pp. doi:10.3390/min8100433 | Journal (article/letter/editorial) | | in peridotites and associated chromitites from ophiolite complexes, along with minerals that typically...Amphibolite Complex) related to the onset of ophiolite obduction [16,23–39] (Figure 1a,b). The synorogenic...plate (Figure 1b) [23,27,28,35,36]. The Cuban Ophiolite Belt represents oceanic lithosphere obducted onto...Ophiolites The Mayarí-Baracoa ophiolite belt, in the eastern part of the Cuban Ophiolite Belt, outcrops for The...The Mayarí‐Baracoa ophiolite belt, in the eastern part of the Cuban Ophiolite Belt, outcrops for more |  | | Book | | Spreading-rate paran1eters in ocean crust: analogue for ophiolite? .......... . SMEWl:---JG, J. D., C HRISTENSEN...upper mantle and lower crust as deduced fro,n the northern section of the On1an ophio lite ................variation within the Cumu late Sequence of the Oman ophiolite: mag,na cha ,nber depth and petrological implications...North Arm Mountain massif of the Bay of Islands ophiolite, Newfoundland ..................................Petrology of the Upper Pillow Lava suite, Troodos ophiolite, Cyprus .................... .. ............. |  | | Journal (article/letter/editorial) | | atmospheric CO2 level The Paleozoic SSZ-type ophiolite and subduction rollback in the eastern Junggar...present day values (Kasting, 1993; Berner et al., 2001; Kaufman et al., 2003). If so, it would imply a high...(xamzhongping@cgs.gov.cn) There are two Paleozoic ophiolite belts, Karamaili and Aermantai, in the eastern...northerly Aermantai ophiolite, aged by 503 to 481Ma (Xiao et al., 2006; Jian et al., 2003), has been testified...et al., 2001) of suprasubduction zone (SSZ). Our data show that the southerly Karamaili ophiolite, generated |  | | Journal (article/letter/editorial) | | MR12A-01. [2] Goreva et al. (2001) American Mineralogist, 86, 466-472. [3] Ma et al. (2002) American Mineralogist... 269-276. [4] Ma et al. (2007) Canadian Mineralogist, 45, 551-557. [5] Ma et al. (2001) Canadian Mineralogist...3 7 4 4 [1] Oliver et al. (1984) GCA 48, 1759-1767. [2] PiersonWickman et al. (2001) EPSL 194, 165-175...et al. (2010) GCA 74, 4893-4901. [4] Lupton and Evans (2004) GRL 31, L13101. [5] Brennwald et al. (2013)...palaeothermometer to natural dolostone samples from the Northern Marion Platform (NMP, offshore NE Australia) and |
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