...J. ROBERT BUTLER; PAUL D. FULLAGAR Abstract The Salisbury, Yadkin, Southmont, Gold Hill, and Kannapolis plutons and related smaller bodies in the Charlotte belt of central North Carolina are leucocratic albite adamellite. The Rb-Sr whole-rock ages for these plutons are 413 to 386 m.y...

... -86 III Calc-silicate granulite with groundmass K-feldspar 6.5 -86 IV K-feldspar from sillimanite-bearing, coarse, leucocratic bands and megacrysts 14.5 -80 IV' K-feldspar from sillimanite-free, coarse, leucocratic bands and megacrysts 10 -83 V Retrograded specimens 8.5 -88 VI Specimens with resorbed...

...Robert A. Wiebe Abstract Acadian granitic rocks in northern Cape Breton Island consist entirely of even-grained leucocratic granodiorite and adamellite. The compositional range is small, and the average composition corresponds well with melts that could be generated in the crust. Abundant...

... of western Venezuela are seen in the northern portions of the area. Two major granitic bodies intrude the area: (g) the El Carmen Granodiorite, characterized by a quartz-plagioclase-microcline-(mica) assemblage; and (h) the La Culata Adamellite, a leucocratic plagioclase-microcline-quartz-(mica) rock. Minor...

...PAUL D FULLAGAR; ROBERT E LEMMON; PAUL C RAGLAND Abstract The Salisbury pluton, composed chiefly of albite adamellite, is the most leucocratic and has the most anomalous trace element assemblage of 96 igneous bodies studied thus far in the Piedmont of the southeastern United States. Major element...

... Butler J. R. Fullagar P. D. Petrologic and geochronological studies of plutonic rocks in the Southern Appalachians: III, Leucocratic adamellites in the Charlotte belt near Salisbury, North Carolina Bull. geol. Soc. Am 1978 89 460 6 Clarke J. W. Geology and mineral resources...

... limestones, and polymictic sandstones; 7 – granitoids of the Kalba complex: granodiorites, adamellites, and leucocratic granites; 8 – granitoids of the Kunush complex (tonalites, plagiogranites): a – small intrusive bodies and stocks, b – dikes of the same composition; 9 – basic and ultrabasic...

..., ~2.0 to ~1.6 Ga, with associated calcalkaline magmatism) and the later Namaqua Event (NMO, ~1.2 to ~1.1 Ga, with associated granitic magmatism). The ORO magmatism includes the Vioolsdrif Suite, represented by outcrops of deformed leucogranite, adamellite, granodiorite and mafic rocks that were later...

... and orogeny of Upper Paleozoic age, represented by large massifs of complex structure with phases of granodiorites, adamellites, granites (of K-Na and Na-K alkalinity), leucogranites, and aplites; 4 – of small intrusive bodies and dikes of diverse compositions (basalt and andesitobasalt porphyrites, granite...

... are less abundant; leucocratic granites and orthite-bearing pegmatites are scarce. Other massifs are dominated by biotite, biotite-muscovite granites and leucogranites, and the share of granodiorites and adamellites is significantly less, in most cases being absent entirely. The granitoids...

...Figure 3. Syntectic (contaminated, hybridized) porphyritic granodiorite/adamellite displaying partially assimilated (granitized) nebulitic mafic relics derived from the nearby Zandspruit mafic-ultramafic complex ( Anhaeusser, 1992 ). The porphyritic granitoids in the area (part of the ca. 3114...

... it: adamellite-granite, intrusions of complex composition with a few phases of injection, and intrusions of biotite granites with late leucogranite phases. Thus, the majority of researchers agree that there is a genetic similarity with the Cretaceous granitoid magmatism of the Chukchi folded system...

... viz. agmatite (MGj2), biotite granite (127), granitic gneiss (143), porphyroblastic K-rich granitic gneiss (Tjl); and schistose quartzite viz. Schistose quartzite (TRjI2), migmatite (MGj3), adamellitic gneiss (BKjl) were particularly selected. The zircons from specimens (i) leucocratic "garnetiferous...

... twochemicallydifferentsourcetypes were invoIved. Keywords: Petrology, Geochemistry,Himalaya, Lahual. INTRODUCTION A two fold groupingof granitesin Himalaya is suggested by Debon er al. (1983): (i) the more or Iess gneissifled porphyritic granite group and (io the two-mica often tourmaline bearing leucocratic adamellite group...

... in the suture megablock, in the zone of the Main Uralian Deep Fault, southwest of Miass, among metabasites and compositionally diverse schists, fragments of the metamorphosed oceanic crust and crust of the passive margin of the Uralian paleoocean. It is composed of granodiorites, adamellites, and granites...

... of leucocratic granites and granite-aplites are widespread in the Aidyrlya Massif. They are characterized by high K concentrations (up to 5.3 % K 2 O) and elevated contents of U (up to 5.5 ppm) and Th (up to 27.1 ppm). These contents are close to those established in the syenitoids and dikes of the microcline...

... rocks. Champawat granite suite is a well differentiated, polyphase, calc-alkaline, peraluminous, S-type granitoid batholith that ranges in composition from granite to granodiorite- adamellite and trondhjemite. It is interpreted to be the product of anatexis of supracrustals at middle to lower crustal...