 | | Journal (article/letter/editorial) | | Island, a part of Burma-Andaman-Java subduction complex in the Bay of Bengal. Chromite mainly occurs as...as massive chromitite pods in mantle ultramafic tectonite and as thin massive chromitite bands together...together with minor disseminations in crustal ultramafic cumulate. Other than pods chromite also appears as:...Burma-Java subduction complex. Introduction Chromite is a common mineral in ultramafic rocks especially in...2004). The composition of magmatic spinel is a complex function of magma and source peridotite composition |  | | Journal (article/letter/editorial) | | rocks Syn-emplacement thrust fault Sheeted dyke complex Backthrust fault Normal fault Acadian thrust...chromite outer rims, and also along fractures, into a complex mixture of alteration phases (serpentine + chlorite...either with a SIMS ion microprobe (Tari-Misaka ultramafic complex, Northern Oman, Central Oman, Troodos;...sample) and for reference material KPT-1 (quartz diorite; Webb et al., 2006). 0361-0128/98/000/000-00 $6...Ocean) Tr = Troodos Supra-subduction zone (SSZ) Japan Arc Xenolith TMO boninite NO 50 MO R rce dep |  | | Journal (article/letter/editorial) | | rocks Syn-emplacement thrust fault Sheeted dyke complex Backthrust fault Normal fault Acadian thrust...chromite outer rims, and also along fractures, into a complex mixture of alteration phases (serpentine + chlorite...either with a SIMS ion microprobe (Tari-Misaka ultramafic complex, Northern Oman, Central Oman, Troodos;...sample) and for reference material KPT-1 (quartz diorite; Webb et al., 2006). 0361-0128/98/000/000-00 $6...Ocean) Tr = Troodos Supra-subduction zone (SSZ) Japan Arc Xenolith TMO boninite NO 50 MO R rce dep |  | | Journal (article/letter/editorial) | | Platiniferous Dunite Horizon, Zambales Ophiolite Complex, Philippines: Melt Type and Associated Geochemical...P. YUMUL, Jr. Abstract: The Zambales Ophiolite Complex, a supra-subduction zone ophiolite, is made up...possible exploration targets in the ophiolite complex. 1. Introduction Layered intrusions and ophiolite...host PGM mineralization is the Zambales Ophiolite Complex (ZOC). Geochemical evidence also shows that PGE...1. Geologic outline of the Zambales Ophiolite Complex The Eocene ZOC is a north-south trending, east |  | | Journal (article/letter/editorial) | | significance of spinel-group minerals from the ultramafic rocks of the Iti and Kallidromon ophiolites (Central...considered when studying spinels of serpentinized ultramafic rocks (e.g. Kimball, 1990; Burkhard, 1993). This...variability of spinel-group minerals occurring in ultramafic rocks from the Iti and Kallidromon ophiolite...lherzolite and harzburgite), olivine gabbro, gabbro, diorite, dolerite, pillow lava, amphibolite, coarse-grained...considerable amounts of rodingite. 3. Petrography of the ultramafic rocks of Iti and Kallidromon A number of thin |  | | Journal (article/letter/editorial) | | varieties, are present in the Kop ophiolitic ultramafic rocks, which extend from Erzincan to Erzurum...chromitites from the Bushveld complex and layer B chromitites of the Stillwater complex) are represented by positively...Othrys, Greece (Garuti et al. 1999a), the Ray-Iz complex, Russia (Garuti et al. 1999b), Oman (Ahmed & Arai...metamorphic massifs and granitic rocks. Ultramafic complexes, gabbro and diorite and associated deep pelagic sedimentary...consumption of Paleotethys, whereas obduction of the ultramafic complexes during the Cenomanian as well as Cretaceous |  | Zanetti, Alberto, Giovanardi, Tommaso, Langone, Antonio, Tiepolo, Massimo, Wu, Fu-Yuan, Dallai, Luigi, Mazzucchelli, Maurizio (2016) Origin and age of zircon-bearing chromitite layers from the Finero phlogopite peridotite (Ivrea–Verbano Zone, Western Alps) and geodynamic consequences. Lithos, 262. 58-74 doi:10.1016/j.lithos.2016.06.015 | Journal (article/letter/editorial) | | Phlogopite Peridotite mantle unit in the Finero Complex (FPP, Ivrea–Verbano Zone, Southern 23 Alps) aimed...evidence of the occurrence in the Finero Mafic Complex (northernmost IVZ) of 62 widespread events of...64 (e.g. zircon-bearing diorites and nepheline diorite pegmatites) mostly showing Late Triassic to 65...the associated crustal rocks of the Finero Mafic Complex 4 ACCEPTED MANUSCRIPT (Giovanardi et al., 2014)...al., 2012; Beltrando et al., 2015). The Finero Complex outcrops as an antiform in the 125 northernmost |  | 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) | | Sciences, Kanazawa University, Kanazawa 920-1192, Japan * Corresponding author: ahmh2jp@yahoo.com Abstract...petrogenetic indicator, even in highly serpentinized ultramafic rocks (Liipo et al., 1995; Ahmed et al., 2005)...are abundant as varyingly dismembered mafic– ultramafic assemblages that have suffered multiple phases...including podiform chromitites and their host ultramafic rocks. The parental melt composition in equilibrium...zone. From the viewpoint of age, the known mafic-ultramafic complexes in the Arabian Shield of Saudi Arabia |  | | Journal (article/letter/editorial) | | University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan. SC R 3 Research and Development Center for Ocean...Ocean Drilling Science, JAMSTEC, Yokosuka 237-0061, Japan. *Corresponding author. Tel: +2-047-3215174, Fax:...crystallization of K- or Na-rich minerals. The Balamhindit complex, where the chromitite showed K-phlogopite 1 ACCEPTED...into: Bitan gneisses, Balamhindit and Arais mafic-ultramafic rocks (Dismembered-ophiolite), Umm Araka metavolcanics...metagabbros, and metavolcanic rocks MA (Fig. 1a). The ultramafic rocks are outcropped as elongated thrust slices |  | | Journal (article/letter/editorial) | | high-Ti) within separated massifs or a single ultramafic massif makes their 47 formation processes and...2015; Lian et al., 2017), implies a series of 55 complex processes of formation of podiform chromitites...chromitite varieties outcropping within 90 the same ultramafic massif provide an ideal window to indicate the...308 ± 3 Ma, Chen and Guo, 2010), pyroxene 117 diorite and granite porphyry (310.7 ± 3.7 Ma and 312 ±...fault (Fig. 2a). The ophiolite consists mainly of ultramafic rocks, podiform 123 chromitites, cumulates |  | | Journal (article/letter/editorial) | | scale. I-type petrogenesis appears to be more complex and probably involves mixing processes (mixed sources...1698555, Japan (*correspondence: m-shikit@aoni.waseda.jp) 2 School of Engineer., Univ. of Tokyo, Japan 3 Center...Asian Studies, Tohoku Univ., Japan 4 Grad. School of Sci., Kanazawa Univ., Japan 1 Petit-spot, new type young...from twelve petit-spot volcanoes at a site in the Japan Trench (Site A), a site approximately 600 km ESE...Canada (dames@nrcan.gc.ca) 1 The Sudbury Igneous Complex (SIC), Ontario, Canada, is a large (~60km x 30km) |  | | Book (volume) | | original monoclinic Ca-poor pyroxene. Bushveld complex. Crossed polars x60. C. Pigeonite inverted to...of exsolved augite lamellae //(100). Bushveld complex. Crossed polars x60. D. Orlhopyroxene with exsolved...The Chemical Society of Japan for diagram from Bulletin Chemical Society of Japan: Chapman & Hall Ltd for...Fe3 +)2 SiO6 and CaTi(Al,Fe 3 +) 2 O 6 . A more complex method, involving the estimation of twelve components...K-1., J964. Clinopyroxenes from alkaline rocks of Japan. Amer. Min., 49, 1199-1223. Berman, H., 1937. Constitution |
|
