 | | Journal (article/letter/editorial) | | USA Small (<5 km2), lithologically diverse gabbro and diorite that mafic magmas present during the production...I-type bath- KEY WORDS; arc magmatism; Cascades; gabbro; granitoid; trace eltoliths, and represent basaltic...1992), but in general these marily from multiple intrusion of related magmas, in some have been extensively...are obscured (Eberz & ation (gabbronorite-quartz diorite) is modeled by low-pres- Nicholls, 1990). By comparison...study the petrotopic variation among LKS gabbro—quartz diorite at Copper genesis of mantle-derived magmas |  | | Journal (article/letter/editorial) | | the Atud gold deposit hosted in the metagabbro–diorite complex of Gabal Atud (Central Eastern Desert,...classified as an intrusion-related gold deposit, in which the gabbro–diorite host intrusion acted as the...February 2017 1. Introduction Genesis of most intrusion related-gold deposits in the Eastern Desert of...its ore-bearing fluids and metal sources. The intrusion-related gold deposits (IRGDs) are the most important...related to calcalkaline to alkaline, intermediate (diorite–monzonite), and I-type intrusions ranges from Cu–Au |  | | Journal (article/letter/editorial) | | two-pyroxene—biotite diorite and monzodiorite; (3) heterogeneous hornblende-rich rocks varying from gabbro to diorite;...relations, suggest that the two-pyroxene-biotite diorite/monzodiorite unit was consanguineous with the clinopyroxene-rich...clinopyroxene-rich ultramafic and gabbroic rocks. The diorite/ monzodiorite unit, therefore, is an intermediate...rare-earth-element data characteristic of the diorite/monzodionte unit indicate strong similarities to...leucocratic units are younger and represent the intrusion of other magmas into the same igneous locus. Petrographic |  | | Report (chapter) | | significance of Neoarchaean variably alkali-enriched gabbro and diorite intrusions of the western Karelia Province...approached individually. Three Neoarchaean gabbro and diorite intrusions and two associated mafic dykes...Neoarchaean events is the widespread migmatization and intrusion of anatectic leucogranitoids at 2.7 Ga (Käpyaho...O-isotope ratios of zircons from the Änäkäinen intrusion were measured using Cameca IMS 1280 multi-collector...(Pietikäinen et al. 2005). The vicinity of the intrusion consists of variably migmatized TTG suite granitoids |  | | Journal (article/letter/editorial) | | ORIGINAL PAPER Petrogenesis of the Nesryin gabbroic intrusion in SW Sinai, Egypt: new contributions from mineralogy...Springer-Verlag 2008 Abstract The Wadi Nesryin gabbroic intrusion is part of the Neoproterozoic Pan-African basement...of Egypt. The intrusion comprises hornblende gabbro, pyroxene–hornblende gabbro, diorite and appinitic...fine-grained gabbro and dolerite and belongs to what is known throughout Egypt as the “younger gabbro suite”...rock Rb–Sr isochron age of the Nesryin gabbroic intrusion is 617±19 Ma with initial 87Sr/86Sr=0.70322±0 |  | | Report (chapter) | | rocks are widely exposed, emplaced by extensive hypersthene granites and tonalite– trondhjemite –granites...and trachyandesites. The gabbros and gabbroic diorite generally show a mosaic texture with euhedral to...cumulate texture (e.g. norites from the Jinan intrusion and pyroxenites from the Dabie terrane (Table...metagabbros Hyperite – norite–gabbro– diorite intrusion Gabbro – diorite intrusion Basaltic trachyandesite...trachyandesite Basalts and andesites Gabbro and diorite Gabbro and diorite Rock type 125 132 – 116 122 – 125 132 |  | Gao, Lei, Liu, Shuwen, Sun, Guozheng, Guo, Rongrong, Hu, Yalu, Fu, Jinghao, Wang, Maojiang, Ma, Chenchen, Hu, Fangyang (2018) Petrogenesis of late Neoarchean high-K granitoids in the Western Shandong terrane, North China Craton, and their implications for crust-mantle interactions. Precambrian Research, 315. 138-161 doi:10.1016/j.precamres.2018.07.006 | Journal (article/letter/editorial) | | granodioritic gneisses (Group #3) and coarse-grained gabbro-diorites (Group #4). The first three groups of...A/NK versus A/CNK plot. In contrast, the gabbro and diorite samples display low SiO2 and K2O contents...3) were emplaced at ~2511-2497 Ma and that the gabbro-diorites were emplaced at ~2511 Ma. All of these...metagreywackes at lower to mid-crustal levels. The gabbro-diorites (Group #4) were derived from the partial...both areas, it consists of hornblendites, (hypersthene) amphibolites, biotite gneisses and mus |  | | Book | | Riphean-Vendian; 8-14: intrusions (8 = gabbro-mnphibolite, 9 = gabbro-labradorite, 10 = microcline and plagiomicrocline...leucogranite, 12b = charnockite-granite, 13 = ultrabasic-gabbro-norite, 14 = nepheline syenite);15 = faults. -...93 1.42 0.10 0.08 0.57 0.08 0.10 1 = quartz diorite, 2 = tonalite, 3 = trondhjemite. (“plafiogranite”...(19 = andesitic porphyrite, 20 = wehrlite, 21 = gabbro-diabase);22 = faults. 31 The eastern Baltic...embraces a wide spectrum of rocks - tonalite, diorite, enderbite and charnockite. Establishing the relationships |  | | Report (chapter) | | 85-2.87 Ga) 2.86-2.85 Ga complexe / '%, [ ~ gabbro-diorites (2.85 Ga) ~ andesitic to dacitc volcanics...86-2.85 Ga) / 3.05-2.9 Ga fiomplexe / high-Mg gabbro ~ ~ komatiitic-basalticassociation (lavas and..._+ 15 Ma (A. Samsonov, pers. comm.) as well as gabbro-diorites, dated at 2890 ___40 Ma (Sergeyev et al...strongly tectonized and internally differentiated gabbro-anorthosite bodies, such as the Patchemvarek massif...of the Iringora sequence are interpreted as the gabbro unit, which appears to be the deepest exposed level |  | | Journal (article/letter/editorial) | | were derived from asthenospheric upwelling. The gabbro-dioritic rocks with higher light to heavy REE ratios...serpentinized peridotite, cumulate pyroxenite, gabbro and SC R troctolite, diabase, basalt, plagiogranite...crystalline series are mainly composed of massive gabbro and diabase. NU The Kelameili ophiolite is composed...peridotite, serpentinite, MA cumulate pyroxenite and gabbro, diabase, olivine basalt, plagiogranite, basalt...include peralkaline granite, monzogranite, gabbro-diorite and diorite that tend to be elongate and trend NW-SE |  | | Report (issue) | | group element mineralization of the River Valley intrusion, Dana Township J. Hrominchuk 32. Geological setting...Chemostratigraphy and Ore Mineralogy of the River Valley Intrusion (Partnership Project) Grenville-Southern Province...on the Entwine Stock of quartz under-saturated diorite through monzodiorite to monzonite (Stone and Hallé...include Lac des Iles, the Awkward Lake gabbro and the Chrome Lake intrusion in the Obonga lake greenstone belt...the Tisdale assemblage include 2707 ± 3 Ma for gabbro associated with an ultramafic dike intruding the |  | | Book | | the mariupolites of the Oktyabr'skii (Mariupol) intrusion, Ukraine were recognized and described by Morozewicz...Geology and petrology of magmatic rocks of the Guli intrusion. S.tate Publishing House of Literature for Mining...The oldest massifs are the Proterozoic alkaline-gabbro occurrences of Gremyakha-Vyrmes, Elet'ozerskii...Elisenvaarskii 69°22'N; 32°45'E Fig. 3 The Chagvedaiv intrusion is situated in Archaean biotite gneisses and takes...Archaean gneisses and is a downward tapering intrusion of 4 X 5 km. Clinopyroxenites are abundant with |  | Nokleberg, Warren J., Bundtzen, Thomas K., Dawson, Kenneth M., Eremin, Roman A., Goryachev, Nikolai A., Koch, Richard D., Ratkin, Vladimir V., Rozenblum, Ilya S., Shpikerman, Vladimir I., Frolov, Yuri F., Gorodinsky, Mary E., Melnikov, Vladimir D., Ognyanov, Nikolai V., Petrachenko, Eugene D., Pozdeev, Anany I., Ross, Katherina V., Wood, Douglas H., Grybeck, Donald, Khanchuk, Alexander I., Kovbas, Lidiya I., Nekrasov, Ivan Ya., Sidorov, Anatoly A. (1996) Significant metalliferous and selected non-metalliferous lode deposits and placer districts for the Russian Far East, Alaska, and the Canadian Cordillera. Open-File Report Vol. 1996 (96-513) US Geological Survey doi:10.3133/ofr96513a | Report (issue) | | associated with tectonized dunite, harzburgite, gabbro, sheeted diabase dikes, and fine-grained sedimentary...and to isolated small intrusions of gabbro-diorite, quartz diorite, and potassic alaskite granites. Late-stage...Associated igneous rocks are hypabyssal and subvolcanic diorite, granodiorite, and hypabyssal-andesite intrusions...associated with hypabyssal intrusions varying from diorite to granite, and widespread albitized granite-porphyry...more of the following lithologies: pyroxenite, gabbro, unites, ijolite, foyaite. nephelinite, alkaline |  | | Book | | 3. 3.4. 3.5. Kemi intrusion................................106 Penikat intrusion ................................123 5.4. PGE reefs of the Penikat intrusion .123 5.5. Marginal series Cu-Ni-PGE and reef-type...Lapland ....167 Akanvaara intrusion .......................167 Koitelainen intrusion .......................intrusions ......................172 Keivitsa intrusion ...........................172 5. Lapland granulite..............................415 3.3. Lapinlahti gabbro–anorthosite .......416 4. Intrusions of the Tampere |
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