 | | Journal (article/letter/editorial) | | between South Africa and Namibia. They occur in the central parts of the Kakamas Domain in the Namaqua Sector...Gneiss occurs mainly on the outer perimeter and northern parts of the batholith and comprises equigranular...grain-ïŹattening of quartz and feldspar in the equigranular leucogneisses and aligned K-feldspar megacrysts in the...northwest Northern Cape (Figure 1). The pre- to syn-tectonic batholith is situated in the central parts of...Gneiss occurs mainly on the outer perimeter and northern parts of the batholith and comprises equigranular |  | | Journal (article/letter/editorial) | | Hegner, 1992). (B) E â W cross section of the central Slave craton, illustrating eastdipping boundary...Mesoarchean basement (4.0 â2.9 Ga), referred to as the Central Slave Basement Complex (Bleeker et al., 1999b)...Mesoarchaen basement dips to the east and underlies the central part of the craton at depth, although its eastern...sequences were extruded over the quartzites and Central Slave Basement Complex between 2.73 and 2.70 Ga...several 100 my after development of the Mesoarchean Central Slave Basement Complex. Post-2.64 Ga structures |  | | Book | | kimberlites of the Siberian kimberlite province. 9 K - rich clinopyroxenes as mantle conveyers of crustal-derived...subduction regime in eastern New South Wales, Australia. Mantle Dynamics beneath Mongolia: Implications...diamond. 61 Cr-poor Megacrysts from the Frank Smith Mine and the source regions of transitional kimberlites...statistic method. Andre,L., Shatsky, V.S., De Corte, K., Sobolev, N.V., Navez, J., Jagoutz, E. Andronikov...Geology of the Timber Creek Kimberlites, Northern Territory, Australia. Source Characteristics of Brazilian |  | | Journal (article/letter/editorial) | | Yavapai-Mazatzal 14 Belt, USA Adeladian Belt, Australia Total 498 55 422 27 458 117 87 16 29 116...well documented in samples from the Roberts Victor Mine (e.g., MacGregor and Carter, 1970; Hatton, 1978;...documented in a lherzolite from the Roberts Victor mine by Viljoen et al. (1994), who concluded that a low-CaO...Pan-African Wadi Haimur metamorphic sole, Eastern Desert, Egypt. J. Metamorph. Geol. 18, 639 â 651. Ater...Metamorphic evolution of granulites in the Minto Block, northern QueÌbec: extraction of peak P â T conditions taking |  | | Journal (article/letter/editorial) | | Cambrian Gahcho Kue kimberlite cluster (Slave craton, northern Canada). This Group-IA kimberlite is a multiphase...Canada. Kimberlites are now found in all parts of northern Canada, from Coronation Bay in the west to Quebec...lobes (Figs. 1, 2), a western, central, and eastern lobe, as well as a northern lobe intersected in drill...pipe consists of western (W), central (C), and eastern (E) lobes. The northern lobe intersected in the drill...the southern Slave and the Yamba suite in the central Slave (Yamashita et al. 1999). Granitic rocks of |  | Mikhailenko, Denis, Golovin, Alexander, Korsakov, Andrey, Aulbach, Sonja, Gerdes, Axel, Ragozin, Alexey (2020) Metasomatic Evolution of Coesite-Bearing Diamondiferous Eclogite from the Udachnaya Kimberlite. Minerals, 10 (4) 383 doi:10.3390/min10040383 | Journal (article/letter/editorial) | | phlogopite, orthopyroxene, clinopyroxene (secondary), K-feldspar, plagioclase, spinel, sodalite and djerfisherite...of olivine, orthopyroxene and coesite/quartz with K-Na-Cl minerals in the xenolith indicates that eclogite...non-serpentinized kimberliteinin Udachnaya-East open-pit mine [79,80]. It is a medium-grained eclogite with a...a massive structure and a granoblastic texture mine [79,80]. It is a medium-grained eclogite with a massive...(CpxIIâsecondary clinopyroxene, Plâplagioclase, KfsâK-feldspar); KfsâK-feldspar); (ĐĄ):with quartz grain with an inclusion |  | | Journal (article/letter/editorial) | | and other oxides in Mn-rich rocks from the Hutter mine, Pittsylvania County, Virginia, U.S.A.: Implications...Lake, Ontario, Canadaâ A. Dogan Paktunc and Nand K. DavĂ© High-pressure IR-spectra and the thermodynamic...Yamamoto 100 Origin of silicic volcanic rocks in Central Costa Rica: A study of a chemically variable ash-flow...from the Saruta-gawa area in the Sanbagawa belt, central Shikoku, JapanâYasuyuki Banno 425 0361-0128/98/000/000-00...Mitchell The distribution of rare-earth elements in K-feldspar as an indicator of petrogenetic processes in |  | | Journal (article/letter/editorial) | | Jwaneng, Botswana; Argyle lamproite, Western Australia; the Sloan kimberlite pipe, United States; and...eclogites in the continental lithospheric mantle of the region. Ac ce p Geological setting of Catoca and Cat-115...separate episodes of an kimberlite magmatism in the central part of the Congo-Kasai Craton, in late Archean...Nb, Ba, La, Hf, Ta, Pb, Th, U and LOI) in the Central Laboratory, Russian Geological Research Institute...biotite, phlogopite, apatite, sodium plagioclase, K-feldspar and serpentine. Xenoliths of garnet lherzolites |  | | Report (volume) | | color shaded relief aeromagnetic map of north-central Minnesota. Color changes represent broad changes...H. I. J. K. L. Part 3. Tertiary calderas and regional extension of the east-central part of the...Basement structure in the Railroad Valley-Grant Range region, eastcentral Nevada, from interpretation of potential-field...Cu-Mo deposit, Maine By Robert A. Ayuso and Nora K. Foley..............................................Structure and origin of the Ely copper deposit, east-central Vermont By Terry W. Offield, John F. Slack, and |  | | Journal (article/letter/editorial) | | lithospheric root was coupled to Mesoarchean crust of the Central Slave superterrane (CSST) prior to accretion of...ultra-depleted harzburgitic layer (UDL) under the central part of the Contwoyto terrane, where it is trapped...in depletion of peridotite bulk compositions. A central domain, characterized by an abundance of ultra-depleted...to as Central Slave Mantle Conductor (CSMC) (Jones et al., 2001; Jones et al., 2003). A northern domain...(GrĂŒtter et al., 1999). The boundary with the central and southern domains is less sharp, but also marked |  | | Report (issue) | | tuff, etc.-Utah-Keg Mountain region. 2. Beryllium ores-Utah-Keg Mountain region. 3. Trace elements. I. Title...and maps showing mean values at each sampling station in water-laid tuff in the Keg Moutain area for..._________________________________ -----------------8. Potassium feldspar content _______________________ - _____ -- _---------------...and maps showing mean values at each sampling station in water-laid tuff in the Keg Mountain area for...produced a detrital facies rich in quartz, potassium feldspar, plagioclase, and iron oxides. The concentration |  | | Journal (article/letter/editorial) | | Planetary Sciences, Macquarie University, NSW 2109, Australia LaboratĂłrio de estudos geocronolĂłgicos, geodinĂąmicos...xenoliths from the A154 kimberlite of the Diavik mine, Lac de Gras area. The melts range from carbonatitic...Planetary Sciences, Macquarie University, NSW 2109, Australia. Tel.: +61 2 9850 4401; fax: +61 2 9850 8943....composition ranges continuously from phlogopite to a low K, high MgâAl phase, probably inter-layered phlogopite/chlorite...abundance tend to have mica compositions with low K, Rb, Cs, Y, Ta, and REE contents. Phlogopite has higher |  | | Journal (article/letter/editorial) | | Prindle volcano, Alaska: Implications for the northern Cordilleran crustal lithosphere Edward D. Ghent...opportunity to examine the lower crust of the northern Canadian Cordillera. The cone's pyroclastic deposits...those rocks metamorphosed at shallow depths. The northern Cordillera of North America (Fig. 1) is a typical...volcanic centres (open circles) belonging to the Northern Cordilleran volcanic province (NCVP; Edwards and...terrane (as defined by Mortensen, 1992) of Yukon Territory and Alaska. The purpose of this paper is to describe |  | | Journal (article/letter/editorial) | | University NU of Tasmania, Hobart, TAS, 7001, Australia Research School of Earth Sciences, The Australian...MA 3 ACT 0200, Australia Unit 3, 13 Hyland Street Foster, Victoria 3960 Australia ED 4 SC RI Ekaterina...overprint is represented mainly by enrichments in Na, K, Ba Ti and LREE and the original source of this fluid...mantle xenolith from the Roberts Victor kimberlite mine in South Africa. We find that its textural and mineralogical...SX100 Electron probe Microanalyser (EPMA) at the Central Science NU Laboratory, University of Tasmania |  | | Journal (issue) | | and other beryls from Connecticut âą Catâs-eye K-feldspar and other chatoyant gems from Tanzania âą Green...Beach, California A. J. A. (Bram) Janse Perth, Australia Mark Newton Coventry, United Kingdom James E...nucleated and tissue nucleated are often used (see, e.g., K. Scarratt et al., âCharacteristics of nuclei in Chinese...single carbon-carbon stretching vibration in the central part of the chain, with the CH3 in plane-bending...diamonds of cube and cuberelated shape from the Jwaneng mine,â Journal of Crystal Growth, Vol. 94, 1989, pp. |  | | Report (issue) | | Macquarie University North Ryde, N.S.W. 2109, Australia *Present address: Department of Geology and Geophysics...Geophysics, University of Western Australia, Nedlands, W.A. 6009, Australia. Copyright © 1994, The Geological... McA. Powell, with contributions by E. J. Cowan, K. L. McDonnell, and S. E. Shaw . Permian-Triassic...Macquarie University, North Ryde, N.S.W. 2109, Australia The idea for this volume arose during the Third...Sedimentological Congress held in Canberra in tors, eastern Australia, Antarctica, southern Africa, and south- August |  | DemĂ©ny, Attila, Nagy, GĂ©za, BajnĂłczi, Bernadett, NĂ©meth, Tibor, Garai, JĂłzsef, Drozd, Vadym, Hegner, Ernst (2011) Hydrogen isotope compositions in carbonado diamond: constraints on terrestrial formation. Central European Geology, 54 (1) 51-74 doi:10.1556/ceugeol.54.2011.1-2.6 | Journal (article/letter/editorial) | | ESIR 2011 Central European Geology, Vol. 54/1â2, pp. 51â74 (2011) DOI: 10.1556/CEuGeol.54.2011.1â2.6...is found in placer deposits in Brazil and the Central African Republic (Trueb and Addresses: A. DemĂ©ny...deuterium (interstellar organic matter from which the Central European Geology 54, 2011 Hydrogen isotope compositions...purpose five carbonado samples from Brazil and Central Africa were studied. However, as usual in stable...carbonado samples from Brazil (sample BR-H) and the Central African Republic (samples CAR-J2, CAR-J4, CAR-J5 |  | | Journal (article/letter/editorial) | | beachrocks of Java, Indonesia, and the Nile Delta, northern Egypt which formed under conditions of natural...(1968) described the wreckage of an aircraft in the northern islands of the Great Barrier Reef in which aircraft...the Galapagos Islands), Red Sea, Arabian Gulf, northern Egypt, and Indonesia. The rocks were thin-sectioned...light-colored matrix of carbonate (calcite), quartz, and feldspar (Table 1; Fig. 4). The black volcanic rock is...recorded in history, being heard as far away as Australia, and India. The dust shot up 30 miles into the |  | | Report (volume) | | years âą Eocene Paleocene Cretaceous Lale Upper (K) Early Lower Mesozoic Jurassic (Mz) (J) Troassic...15-28. White, W. H., Erickson, G. P., Northcote, K. E., Dirom, G. E., and Harakal, J. E., 1967, Canadian... M. G., Toghill, P., Dean, W. T., and Ingham, J. K., 1978, U.S. Geological Survey Open-File Rept. 78-701... M. G., Toghill, P., Dean, W. T., and Ingham, J. K., 1978, U.S. Geological Survey Open-File Rept. 78-701... 1979, Upper Paleozoic carbonate bank in east-central Idaho--Snaky Canyon, Bluebird Mountain, and Arco |  | | Book (volume) | | Clermont-Ferrand, France (1982), Perth, Western Australia (1987), Araxa, Brazil (1991), Novosibirsk, Russia...India, (ii) lamproites of Bundelkhand Craton in northern India and (iii) diamond cutting and polishing... Geological Society of India, Bangalore Members: K. Ayyasami, Geological Survey of India, Hyderabad Abhijeet...Hindu University, Varanasi D. K. Paul, Kolkata University, Kolkata E. V. S. S. K. Babu, NGRI, Hyderabad J...Survey of India, Bangalore K. Sajeev, Indian Institute of Science, Bangalore K. S. Godhavari, Geological |  | Aulbach, Sonja, Krauss, Cristen, Creaser, Robert A., Stachel, Thomas, Heaman, Larry M., Matveev, Sergei, Chacko, Thomas (2010) Granulite sulphides as tracers of lower crustal origin and evolution: An example from the Slave craton, Canada. Geochimica et Cosmochimica Acta, 74 (18) 5368-5381 doi:10.1016/j.gca.2010.06.005 | Journal (article/letter/editorial) | | may record major tectonothermal events in the central Slave craton spanning several billion years of...2005), such as the kimberlites erupted in the central Slave craton (Davis, 1997; Pearson et al., * ...isotope systematics of granulite sulphides from the central Slave craton, which sits atop the inferred suture...Diavik kimberlites in the Lac de Gras area of the central Slave craton were investigated, with a focus on...crustal domains, an ancient (4.0â2.8 Ga) west-central domain and a juvenile (<2.8â2.7 Ga) eastern domain |  | | Journal (article/letter/editorial) | | A1141 Mineralogy, chemistry and distribution of mine tailings from the Murgul (Artvin) Cu deposit and...edu.tr) Murgul Cu deposit is the largest copper mine of Turkey and is in production since pre-Republican...impact of mine tailings disposed of into the streams draining the deposit. Due to disposal of mine waste...the streams, particles originating from the Murgul mine are highly enriched in the alluvium. Stream sediment...to quartz content due to dilution at times of no-mine production. However, the second group of samples |  | | Book (volume) | | (Licking Co.) and Zanesville (Muskingum Co.), a region of rolling, wooded hills. Here, prehistoric Indians... ROSS COUNTY CHILLICOTHE, W several mi., in a region exposures of blue clay, as large masses⯠Pyrite...valley of the Tuscarawas R. from Bolivar to Zoar Station, as nodules in limestone outcropsâŻflint. VINTON...Sec. 9âŻflint; d townships of Richland (Sec. 1, central part along an abandoned rd.), Wilkesville, Vinton...south and east of the Wichita Mts. and in the central counties of Comanche, Kiowa, Stephens and Tillman |  | | Book (volume) | | (Licking Co.) and Zanesville (Muskingum Co.), a region of rolling, wooded hills. Here, prehistoric Indians... ROSS COUNTY CHILLICOTHE, W several mi., in a region exposures of blue clay, as large masses⯠Pyrite...valley of the Tuscarawas R. from Bolivar to Zoar Station, as nodules in limestone outcropsâŻflint. VINTON...Sec. 9âŻflint; d townships of Richland (Sec. 1, central part along an abandoned rd.), Wilkesville, Vinton...south and east of the Wichita Mts. and in the central counties of Comanche, Kiowa, Stephens and Tillman |  | | Book (volume) | | rises abruptly into the 6,000 sq. mi. Black Hills region enclosed by the Belle Fourche and Cheyenne rivers...instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...the core of the Black Hills region. Two divisions are recognized: the Northern Section, centered in lead...a somewhat larger area around Harney Peak. The northern section is characterized by vein deposits, while...United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles Eye Tunnel, on the W |
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