 | | Report (chapter) | | Publications The Sapat mafic-ultramafic complex, Kohistan arc, North Pakistan M. Qasim Jan, M. Asif Khan and M...2014 The Sapat mafic-ultramafic complex, Kohistan arc, North Pakistan M. Q A S I M J A N , M. A S I F...Geology, University o f Peshawar, Pakistan Abstract: The Sapat layered complex, occupying the tectonic base...base of the Cretaceous Kohistan island arc, occurs in the immediate hanging wall of the Indus suture zone...Kaghan valley. Previously undescribed, much of the complex consists of gabbroic rocks, but in the basal part |  | | Journal (article/letter/editorial) | | ophiolitic rocks of the Indus Suture Zone in Swat, NW Pakistan M. Arif a,â, D.J. Henry b, C.J. Moon c a b c ...Geology, University of Peshawar, Peshawar 25120, Pakistan Department of Geology and Geophysics, Louisiana...petrography Geochemistry Mineralizing elements Swat Pakistan a b s t r a c t Bodies of magnesite-rich rocks...associated, originally sedimentary rocks of the Indo-Pakistan plate. Locally, late-stage hydrothermal activity...geology . . . . . . . . . . . . . . . . 2.1.1. The Kohistan arc sequence . . . . . . . 2.1.2. The Main Mantle |  | | Journal (article/letter/editorial) | | serpentinised, and are part of a dismembered ophiolite complex. In Tobago, dunites, wehrlites, pyroxenites and...hornblendites form the lower part of a plutonic complex of island arc aÂnity. The mineral assemblages and...intrusives. Ni-Cu-PGE assemblages in Jamaica are pentlandite, with later low temperature heazlewoodite, awaruite...latter with Pt and Pd. In Tobago an assemblage of pentlandite, pyrrhotite, pyrite and chalcopyrite is much...dismembered ophiolite suite (Wadge et al. 1982, 1984) of Upper Cretaceous age (Robinson 1994) and are in tectonic |  | Mondal, S. K., Baidya, T. K., Rao, K. N. G., Glascock, M. D. (2001) PGE and Ag mineralization in a breccia zone of the Precambrian Nuasahi ultramafic-mafic complex, Orissa, India. The Canadian Mineralogist, 39 (4) 979-996 doi:10.2113/gscanmin.39.4.979 | Journal (article/letter/editorial) | | ZONE OF THE PRECAMBRIAN NUASAHI ULTRAMAFIC-MAFIC COMPLEX, ORISSA, INDIA SISIR K. MONDAL§ AND TAPAN K. BAIDYA...U.S.A. ABSTRACT The Nuasahi ultramaficâmafic complex, in Orissa, India, contains high concentrations... The plutonic complex occurs within an Archean belt of supracrustal rocks. The complex consists of an...NNW-trending shear zone. Keywords: ultramafic complex, breccia zone, chromite, sulfides, platinum-group...MINERALOGIST INTRODUCTION The Nuasahi ultramaficâmafic complex (21°16âN, 86°20âE), located in the southeastern |  | | Journal (article/letter/editorial) | | mineral compositions, particularly that of spinels of upper mantle peridotites, are a key to constrain the extent...which was subsequently trapped in the accretionary complex of Ladakh magmatic arc (Bhat et al., 2017). To...al., 2006). The sedimentary unit is dominated by Upper Cretaceous turbidites intercalated with blocks of...At Shergol village (30 km south-east of Kargil district along Srinagar-Leh National highway), the blocks...characteristic features of alpine type or ophiolite upper mantle peridotites. The SSPs are serpentinized to |  | | Journal (article/letter/editorial) | | Asia and New Guinea is recognized as being highly complex. Collisions of the Indo-Australian Plate with the...Department of Mineral and Energy Resources in the Papua Province selected six geological provinces with high deposit...Southern Papua and Fafak. The Jayapura geological province contains the CuâZnâPbâFeâCrâCoâNiâAu mineralization...(Figure 1). The mountains may be considered a complex anticline represented by two slices thrust over...rocks formed during the ophiolite obduction. The upper part of the geological profile consists of ophiolite |  | | Journal (article/letter/editorial) | | temperature (~800 °C) hydrothermal circulation in the upper mantle. Bach and Klein (2009), based on thermodynamic...suites) (Terentiev, 2014). These are intruded by the complex meta-gabbroids (~2120 Ma) (Terentiev, 2014), and...diopsidites veins (boreholes 7011 and 7005). Close to the upper boundary of the metabasite are metamorphosed gabbroids...Vorontsovka series meta-terrigenous rocks are complex. In some cases, layer by layer (few centimetres...represented by pyrrhotite and rare grains of pentlandite, as well as Ni, Co and As sulphides. The compositions |  | | Journal (article/letter/editorial) | | and associated rocks from the Abdasht ultramafic complex, Kerman, Southeastern Iran Ali Reza Najafzadeh...and associated rocks from the Abdasht ultramaïŹc complex, Kerman, Southeastern Iran, Ore Geology Reviews...and associated rocks from the Abdasht ultramafic complex, Kerman, Southeastern Iran IP Department of geology...IRAN Abstract D The Abdasht complex is a major ultramafic complex in south-east Iran TE (Esfandagheh...of chromitites and peridotites of the Abdasht complex which reflects crystallization under low oxygen |  | Gahlan, Hisham A., Azer, Mokhles K., Asimow, Paul D., Al-Kahtany, Khaled M. (2020) Petrogenesis of gold-bearing listvenites from the carbonatized mantle section of the Neoproterozoic Ess ophiolite, Western Arabian Shield, Saudi Arabia. Lithos, 372. 105679pp. doi:10.1016/j.lithos.2020.105679 | Journal (article/letter/editorial) | | ophiolitic rocks of the Arabian Shield are fragments of upper mantle and oceanic ur crust that were obducted...âmantleâ unit of serpentinized peridotite and an upper âcrustalâ unit of layered and isotropic gabbro,...arsenopyrite, sphalerite, chalcopyrite, galena, and pentlandite. Pyrite is the most common di-sulfide (s.l.)...anhedral crystals, altered in places to covellite. Pentlandite is found mainly as small, randomly- ur fractures...minute, anhedral to rounded, grains of na pentlandite are occasionally found. Sphalerite occurs as |  | Gahlan, Hisham A., Arai, Shoji, Abu El-Ela, Fawzy F., Tamura, Akihiro (2012) Origin of wehrlite cumulates in the Moho transition zone of the Neoproterozoic Ras Salatit ophiolite, Central Eastern Desert, Egypt: crustal wehrlites with typical mantle characteristics. Contributions to Mineralogy and Petrology, 163 (2) 225-241 doi:10.1007/s00410-011-0669-5 | Journal (article/letter/editorial) | | is a part of the Arabian Nubian Shield (ANS), a complex amalgam of arc, ophiolite and microcontinental...succession of the Egyptian Pan-African basement complex (e.g., Ries et al. 1983; El Gaby et al. 1984, 1990;...Salatit ophiolite (serpentinized ultramaficâmafic complex) (Fig. 2) forms elongate faultbounded sheets that...metasediments. Island-arc metagabbro/ metadiorite complex and syn- to late-orogenic calc-alkaline Fig. 1...Pseudo-lithostratigraphic column of the Ras Salatit ophiolite complex (not to scale) 123 228 Contrib Mineral Petrol |  | | Journal (article/letter/editorial) | | Permian (260 Ma) Emeishan Large Igneous Province in Yunnan Province, SW China and hosts an economical PtâPdâsulphide...Africa (Maier et al., 2003), the upper zone of the Bushveld Complex, south Africa (von Gruenewaldt, 1976)...intrusion within the Duluth Complex, USA (Miller, 1999), and the Coldwell Complex of Ontario, Canada (Barrie...the UG2 and Merensky Reef within the Bushveld Complex indicates that the contamination process that resulted...al., 2002). The 260 Ma Emeishan Large Igneous Province (ELIP) in SW China and northern Vietnam is composed |  | Melcher, F., Grum, W., Simon, G., Thalhammer, T. V., Stumpfl, E. F. (1997) Petrogenesis of the Ophiolitic Giant Chromite Deposits of Kempirsai, Kazakhstan: a Study of Solid and Fluid Inclusions in Chromite. Journal of Petrology, 38 (10) 1419-1458 doi:10.1093/petroj/38.10.1419 | Journal (article/letter/editorial) | | saline, sodium-dominated aqueous solutions with complex gas contents. Variable amounts of water, hydrogen...northern and western part of the Kempirsai massif, complex silicateâoxide assemblages formed in small orebodies...Mt chromite) are known only from the Kempirsai district, Kazakhstan. In addition to high-grade chromite...concepts, processes such as multi-stage melting of upper mantle, melt segregation, magma mixing and meltârock...et al., 1984). Uralian ophiolites underwent a complex evolution in the Uralian palaeo-ocean. An early |  | | Journal (article/letter/editorial) | | Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for...Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for...Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for...PajeĂș and PiancĂłâAlto BrĂgida domains, Borborema Province, Northeast Brazil. Ultramafic lithologies including...from the cores of igneous zircons represent an upper intercept age of crystallization at 1024 ± 18 Ma |  | | Journal (article/letter/editorial) | | emplacement, as previously proposed, and that the entire complex resided at this depth and cooled slowly from aureole...component derived from the subducted slab to the upper mantle source. In this scenario, the most negative...formations, in the QuadrilĂĄtero FerrĂfero mining district. It is located in the south of the SĂŁo Francisco...concentrations, 2) a middle zone with an extremely complex zoning which is principally composed of an alternation...growth, and yield a progression from simple to complex zircon systematics, and protracted cooling. Emplacement |  | | Book | | Importance of Determining Crust Composition 3.01.2 THE UPPER CONTINENTAL CRUST 3.01.2.1 Surface Averages 3.01...Glacial deposits and loess 3.01.2.3 An Average Upper-crustal Composition 3.01.3 THE DEEP CRUST 3.01.3...continental crust is defined seismically to consist of upper-, middle-, and Figure 1 Map of continental regions...Geophys. Space Phys., 1984, 22, 101 â 122). The Upper Continental Crust lower crustal layers (Christensen...et al., 1992; Rudnick and Fountain, 1995). The upper crust is readily accessible to sampling and robust |  | | Book | | 10M( stars is now understood to be an extremely complex process (Busso et al., 1999). On the first ascent...2003; Westin et al., 2000; Cowan et al., 2002). Upper limits are indicated by inverted triangles (source...our solar system formed. The final step in the complex history of stellar grains is the formation of planetesimals...meteorite is an important parameter that adds to the complex textural variability among chondritic meteorites...deviations reflect problems with the extremely complex analyses or whether they are true variations that |
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