| | Journal (article/letter/editorial) | ultramaĀ®c lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup...plug-like intrusive bodies in the East Antarctic Beaver Lake area. They consist of varying amounts of olivine...melilite, phlogopite, nepheline, titanomagnetite and perovskite as major phases, accompanied by minor amounts...suppressed the crystallization of clinopyroxene. The Beaver Lake ultramaĀ®c lamprophyres are a distal effect of...carbonates (partly primary), MgĀ±Mn-ilmenite, perovskite, TiĀ±Cr-spinel, Ti-magnetite, monticellite, and | | | Journal (article/letter/editorial) | ultramafic lamprophyres from the East Antarctic Beaver Lake area A.V. Andronikov a,) , S.F. Foley b a Department...ultramafic lamprophyres from the Beaver Lake area in East Antarctica, which are developed as sill, dyke...source region. A characteristic feature of the Beaver Lake rocks is low concentrations of Zr and Hf ŽZr...difference between the lamprophyre facies of the Beaver Lake intrusions can be explained by minor amounts...Melting; Fractional crystallisation; Isotopes; East Antarctica 1. Introduction ) Corresponding author. Tel | | | Journal (article/letter/editorial) | continental crust in the northern prince Charles mountains (East Antarctica) as evidenced by zircon xenocrysts...continental crust in the northern prince Charles mountains (East Antarctica) as evidenced by zircon xenocrysts...CONTINENTAL CRUST IN THE NORTHERN PRINCE CHARLES MOUNTAINS (EAST ANTARCTICA) AS EVIDENCED BY ZIRCON XENOCRYSTS...alkaline-ultramafic stocks in the northern Prince Charles Mountains (PCM) contain zircon xenocrysts entrained...rocks, zircon xenocrysts, UāThāPb dating, East Antarctica * Corresponding author: emikhalsky@mail.ru 1 | | | Journal (article/letter/editorial) | Manning Massif in the northern Prince Charles Mountains, East Antarctica. Several separate flows, each...phases such as apatite, amphibole, ilmenite and perovskite in the source region. According to Nd-Sr isotopic...REE-rich accessory phases such as apatite and perovskite were present in the vein, but were rare, so that...OlivinTrachybasalten im Manning Massiv in den n6rdlichen Prince Charles Mountains, Ost-Antarktis, untersucht. Proben wurden...Manning Massif of the Northern Prince Charles Mountains (NPCM), East Antarctica (Fig. 1). The trachybasalts | | Riley, Teal R, Leat, Philip T, Storey, Bryan C, Parkinson, Ian J, Millar, Ian L (2003) Ultramafic lamprophyres of the Ferrar large igneous province: evidence for a HIMU mantle component. Lithos, 66 (1) 63-76 doi:10.1016/s0024-4937(02)00213-x | Journal (article/letter/editorial) | Madingley Road, Cambridge CB3 0ET, UK b Gateway Antarctica, University of Canterbury, Private Bag 4800,...dykes from the Ferrar Province (Pensacola Mountains) of Antarctica preserve trace element and isotope signatures...province extends over 3500 km from the Theron Mountains of Antarctica to southeast Australia and Tasmania (e...Forrestal layered mafic intrusion of the Pensacola Mountains is located at the Ronne Ice Shelf end of the Ferrar...(2003) 63ā76 65 Fig. 2. Map of the Pensacola Mountains showing the location of the ultramafic lamprophyres | | Melluso, L., Srivastava, R. K., Guarino, V., Zanetti, A., Sinha, A. K. (2010) MINERAL COMPOSITIONS AND PETROGENETIC EVOLUTION OF THE ULTRAMAFIC-ALKALINE - CARBONATITIC COMPLEX OF SUNG VALLEY, NORTHEASTERN INDIA. The Canadian Mineralogist, 48 (1) 205-229 doi:10.3749/canmin.48.1.205 | Journal (article/letter/editorial) | emplaced slightly before or during the IndiaāAntarctica break-up. It consists of ultramafic rocks (dunites...(phonotephritic, tephriphonolitic) magmas. The sequence perovskiteātitanite and titaniteāgarnet noted in some ijolitic...LAāICPāMS data, trace elements, garnet, titanite, perovskite, clinopyroxene, Sung Valley complex, India. ...Later, Srivastava et al. (2005) provided a UāPb perovskite age of 115.1 Ā± 5.1 Ma for the ijolite SV58 of...intrusions (117ā110 Ma) are recorded also in East Antarctica (Foley et al. 2002). These are likely counterparts | | Srivastava, Rajesh K., Guarino, Vincenza, Wu, Fu-Yuan, Melluso, Leone, Sinha, Anup K. (2019) Evidence of sub-continental lithospheric mantle sources and open-system crystallization processes from in-situ UāPb ages and NdāSrāHf isotope geochemistry of the Cretaceous ultramafic-alkaline-(carbonatite) intrusions from the Shillong Plateau, north-eastern India. Lithos, 330. 108-119 doi:10.1016/j.lithos.2019.02.009 | Journal (article/letter/editorial) | ) intrusions from the Shillong Plateau, North-Eastern India, LITHOS, https://doi.org/10.1016/j.lithos...) intrusions from the Shillong Plateau, north-eastern India T Rajesh K. Srivastavaa, Vincenza Guarinob...the petrogenetic processes of volcanism in north-eastern India during the Cretaceous. Perovskites of Sung...on zircons of a Sung Valley nepheline syenite. Perovskite of a Jasra clinopyroxenite yielded an age of...the lowest initial 87 MA carbonatites, the perovskite in a dunite, and the bulk-rock carbonatites of | | Melluso, L., Srivastava, R. K., Petrone, C. M., Guarino, V., Sinha, A. K. (2012) Mineralogy and magmatic affinity of the Jasra intrusive complex, Shillong Plateau, India. Mineralogical Magazine, 76 (5) 1099-1117 doi:10.1180/minmag.2012.076.5.03 | Journal (article/letter/editorial) | phlogopite clinopyroxenites (with olivine or perovskite relics), alkali gabbros/monzodiorites, syenites...feldspars, feldspathoids, oxides, orthopyroxenes, perovskite, titanite and other accessory phases are variably...WORDS : clinopyroxenites, gabbros, syenites, perovskite, titanite, amphibole, potassic rocks, Jasra intrusion...lamprophyres in the conjugate margin of East Antarctica are coeval with the Indian intrusions (Andronikov...THE JASRA INTRUSIVE COMPLEX, INDIA tism at the eastern Indian and east Antarctican conjugate margins (cf | | Gwalani, L. G., Jaques, A. L., Downes, P. J., Rao, N. V. Chalapathi (2016) Kimberlites, lamproites, carbonatites and associated alkaline rocks: a tribute to the work of Rex T. Prider. Mineralogy and Petrology, 110 (2) 149-153 doi:10.1007/s00710-016-0429-3 | Journal (article/letter/editorial) | asthenospheric melts into the SCLM, in areas such as eastern Canada have been documented (Tappe et al. 2008)...olivine and leucite lamproites ā chromian spinel, perovskite, ilmenite, priderite, w adeite, jeppeite, and...and between individual intrusions in spinel and perovskite compositions reflects the degree of magma evolution...strongly zoned Walgidee Hills intrusion where perovskite and, to a much lesser extent, priderite show...from highly evolved, enriched lamproite magma. Perovskite records the evolutionary trend of enrichment | | Sushchevskaya, N. M., Migdisova, N. A., Antonov, A. V., Krymsky, R. Sh., Belyatsky, B. V., Kuzmin, D. V., Bychkova, Ya. V. (2014) Geochemical features of the quaternary lamproitic lavas of Gaussberg Volcano, East Antarctica: Result of the impact of the Kerguelen plume. Geochemistry International, 52 (12) 1030-1048 doi:10.1134/s0016702914120106 | Journal (article/letter/editorial) | Quaternary Lamproitic Lavas of Gaussberg Volcano, East Antarctica: Result of the Impact of the Kerguelen Plume...lamproites of the Gaussberg Volcano located at the eastern Antarctic coast and compared with data on the magmatic...isotopes. The Gaussberg Volcano located on the eastern Antarctic continental margin falls in the distribution...southwestern direction. Keywords: lamproites, Antarctica, plume magmatism, isotopy, geochemistry DOI:...underlying long evolved continental mantle of East Antarctica. At the same time, the very important tectonic | | | Book | phone 800-USA-MAPS Map 3. Arkansasā Ouachita Mountains 7.5 Minute Quadrangal Map index. V Contents...Quarry................................... C. Perovskite Hill...........................................better locations are concentrated in the Ouachita Mountains in the west central portion of the state and it...of Magnet Cove. The V-Intrusive on the shore of Lake Catherine has some interesting minerals. Amethyst...the Ouachita Mountains. This trend extends west from just north of Little Rock through Lake Ouachita and | | | Journal (article/letter/editorial) | Labrador Sea province (Labrador, QueĢbec), (2) an eastern Jurassic province (Ontario, QueĢbec, New York,...Territories, Colorado/Wyoming). Ten new U ā Pb perovskite/mantle zircon and Rb ā Sr phlogopite age determinations...Jurassic and Permian kimberlite fields. New U ā Pb perovskite results for the 614.5 F 2.1 Ma Chicken Park and...the Cambrian (Venetia, South Africa; Snap Lake and Kennady Lake, Canada) to the Tertiary (Mwadui, Tanzania;...encapsulated in a finer-grained matrix of calcite, perovskite, phlogopite, and spinel ( F apatite, monticellite | | | Journal (issue) | time in the past. Subscription numbers continue Charles and Marcelle Weber, we continued to have a booth...silver and the many associĀ ated minerals of the Lake Superior Copper District in the Upper PeninĀ sula...interesting side note, the relatively small Red Lake Belt in Ontario, Canada is only some 350-400 miles...and resembles the Michigan belt in many ways. Red lake has much greater exploration and production, and...and the district is also home to Goldcorp's Red Lake Mine. This mjne has been described as "The richest | | | Journal (article/letter/editorial) | being procĀ essed on land it manages. This does not include mines on private land and smaller unreported...Howard, A l Kidwell, Don Owens, Charles Steuart, Meredith York, and Charles Milton. Without the knowledge...Madison, Rhodes-ManĀ chester and other mines; eastern edge of county around Zinc; mineralized Everton...Uranium Prospect, 4 miles southeast of FounĀ tain Lake; fractured Bigfork Chert; dozer cut made in the...2 miles southwest of Avant on the north shore of Lake Ouachita; quartz veins in Womble Shale; worked 1933-37; | | Maria, Anton H., Denny, F. Brett, DiPietro, Joseph A., Howard, Kevin F., King, Maxwell D. (2019) Geochemistry and Sr-Nd isotopic compositions of Permian ultramafic lamprophyres in the Reelfoot Rift ā Rough Creek Graben, southern Illinois and northwestern Kentucky. Lithos, 340. 191-208 doi:10.1016/j.lithos.2019.05.007 | Journal (article/letter/editorial) | phlogopite, serpentinized olivine (~Fo88), diopside, perovskite, Fe-Ti-spinel, apatite, and calcite. Blocky and...clinopyroxene (1-7 mm), phlogopite (20%), apatite (1%), perovskite (6%), Fe-Ti spinel (4%), and interstitial calcite...mineralization (some have what appears to be a core of perovskite). Most of the samples exhibit panidiomorphic...Wildcat Hills dike, illustrates the distribution of perovskite, olivine, and phlogopite (Fig. 3C). Olivine often...can ACCEPTED MANUSCRIPT be found enclosing perovskite, spinel, apatite, as well as pseudomorphed prismatic | | Rosenthal, A., Foley, S.F., Pearson, D.G., Nowell, G.M., Tappe, S. (2009) Petrogenesis of strongly alkaline primitive volcanic rocks at the propagating tip of the western branch of the East African Rift. Earth and Planetary Science Letters, 284 (1) 236-248 doi:10.1016/j.epsl.2009.04.036 | Journal (article/letter/editorial) | magmas within a continental rift: it consists of eastern and western branches that have contrasting alkaline...rights reserved. doi:10.1016/j.epsl.2009.04.036 eastern branch, and more potassic ones restricted to the...famous Oldoinyo Lengai and Napak localities in the eastern rift, but also occur as lavas and tuffs in the...western branch, lying E and SE of the Rwenzori Mountains (right; modiļ¬ed after Holmes, 1950). Dark shading...velocity gradients begin at ~ 70 and ~ 80 km in the eastern and western rift, respectively (Weeraratne et al | | TAPPE, SEBASTIAN, FOLEY, STEPHEN F., JENNER, GEORGE A., HEAMAN, LARRY M., KJARSGAARD, BRUCE A., ROMER, ROLF L., STRACKE, ANDREAS, JOYCE, NANCY, HOEFS, JOCHEN (2006) Genesis of Ultramafic Lamprophyres and Carbonatites at Aillik Bay, Labrador: a Consequence of Incipient Lithospheric Thinning beneath the North Atlantic Craton. Journal of Petrology, 47 (7) 1261-1315 doi:10.1093/petrology/egl008 | Journal (article/letter/editorial) | subordinate dolomite-bearing carbonatite with UāPb perovskite emplacement ages of 590ā555 Ma occur in the...Mitchell et al., 1999; Heaman, 2005), the Torngat Mountains in northern Quebec and Labrador (Digonnet et al...al., 2000; Tappe et al., 2004), the Otish Mountains region in centralānorth Quebec (Heaman et al., 2004)...petrological and geochemical study, combined with UāPb perovskite and 40 Ar/39Ar phlogopite age determinations...crust dominates the central (Aillik Group) and eastern part close to the Grenville deformation front (Culshaw | | Kerr, Andrew C., Khan, Mehrab, Mahoney, John J., Nicholson, Kirsten Ngaire, Hall, Chris M. (2010) Late Cretaceous alkaline sills of the south Tethyan suture zone, Pakistan: Initial melts of the RĆ©union hotspot?. Lithos, 117 (1) 161-171 doi:10.1016/j.lithos.2010.02.010 | Journal (article/letter/editorial) | andraditic garnet macrocrysts, set in a groundmass of perovskite, olivine, phlogopite, apatite, monticellite,...Cretaceous Beaver Lake ultramaļ¬c lamprophyres in East Antarctica. Although the Beaver Lake lamprophyres...from Mahoney et al. (2002). The data for the Beaver Lake ultramaļ¬c lamprophyres are from Andronikov and...rejected residual zircon in the source of the Beaver lake lamprophyres was that they had primitive-mantle-normalised...with ThN/NbN values ā¤1.0. However, although the Beaver Lake lamprophyres have ThN/NbN values N1.0 (2.3ā7 | | Tappe, Sebastian, Foley, Stephen F., Kjarsgaard, Bruce A., Romer, Rolf L., Heaman, Larry M., Stracke, Andreas, Jenner, George A. (2008) Between carbonatite and lamproiteāDiamondiferous Torngat ultramafic lamprophyres formed by carbonate-fluxed melting of cratonic MARID-type metasomes. Geochimica et Cosmochimica Acta, 72 (13) 3258-3286 doi:10.1016/j.gca.2008.03.008 | Journal (article/letter/editorial) | available online 30 March 2008 Abstract New UāPb perovskite ages reveal that diamondiferous ultramaļ¬c lamprophyre...Archean crust of northern Labrador and Quebec (eastern Canada) between ca. 610 and 565 Ma, a period of...of diamondiferous ultramaļ¬c lamprophyres from eastern Canada 3259 carbonatite magmas when present as...(Tappe et al., 2004). In this study we report UāPb perovskite ages, radiogenic (SrāNdāHfāPb) and stable (CāO)...BACKGROUND 2.1. North Atlantic craton, Torngat Mountains, and diamondiferous UML dykes Two contrasting | | | Other Paper | Kimzey Calcite Quarryā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦. 18 Perovskite Hillā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦.. 20 The Syenite...Molydenum-Titanium Prospect (Mo-Ti)ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦... Perovskite Hillā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦... 104 104 105...life in general. Special appreciation goes to Charles Milton (deceased), Malcolm Ross, Marta Flohr, and...minerals, particularly brookite, rutile, and perovskite. Today, over 100 mineral species are known from...Arkansas. This area is covered by the Malvern North and Lake Catherine 7.5 minute topographic quadrangles. The | | | Journal (article/letter/editorial) | much higher than usual for a craton; the level of Lake Victoria on the craton is 1,100 m. This is believed...carbonate-rich and low-SiO2 silicate rocks are seen in eastern Antarctica, where the Lambert-Amery Rift cuts the edge...from the Vitim volcanic field, Transbaikalia, eastern Siberia. Lithos 48, 263ā285 (1999). 36. Wass, S...apatite-rich xenoliths in basaltic rocks from eastern Australia. Phil. Trans. R. Soc. Lond. A 297, 333ā346...Spinel+garnet lherzolites from the Jetty Peninsula, East Antarctica: mineralogical features and geotherms in the | | Tappe, Sebastian, Brand, Natalie B., Stracke, Andreas, van Acken, David, Liu, Chuan-Zhou, Strauss, Harald, Wu, Fu-Yuan, Luguet, Ambre, Mitchell, Roger H. (2017) Plates or plumes in the origin of kimberlites: U/Pb perovskite and Sr-Nd-Hf-Os-C-O isotope constraints from the Superior craton (Canada) Chemical Geology, 455. 57-83 doi:10.1016/j.chemgeo.2016.08.019 | Journal (article/letter/editorial) | or plumes in the origin of kimberlites: U/PB perovskite and Sr-Nd-HfOs-C-O isotope constraints from the...or plumes in the origin of kimberlites: U/PB perovskite and Sr-Nd-Hf-Os-C-O isotope constraints from...OR PLUMES IN THE ORIGIN OF KIMBERLITES: U/PB PEROVSKITE AND SR-ND-HF-OS-C-O ISOTOPE CONSTRAINTS FROM...(new SIMS U/Pb perovskite ages) and 629 Ma ābarrenā Wemindji kimberlites on the eastern Superior craton...isotopes, highly siderophile elements, SIMS U/Pb perovskite geochronology; supercontinent breakup ED Terrestrial | | Tappe, Sebastian, Romer, Rolf L., Stracke, Andreas, Steenfelt, Agnete, Smart, Katie A., Muehlenbachs, Karlis, Torsvik, Trond H. (2017) Sources and mobility of carbonate melts beneath cratons, with implications for deep carbon cycling, metasomatism and rift initiation. Earth and Planetary Science Letters, 466. 152-167 doi:10.1016/j.epsl.2017.03.011 | Journal (article/letter/editorial) | North Atlantic craton, with fragments preserved in eastern Canada and Greenland (Fig. 1A, B), represents one...al., 2015). The rifted North Atlantic craton in eastern Canada and Greenland (Fig. 1) records a protracted...2.2. Mesozoic kimberlitesācarbonatites of the eastern CanadianāGreenland Shield On a continental scale...lamprophyre magmatism was widespread across the eastern CanadianāGreenland Shield between 240 and 120 Ma...lamprophyre (UML) occurrences in West Greenland and eastern North America. (A) Paleogeographic reconstruction | | Ruberti, Excelso, Enrich, Gaston E. R., Azzone, RogĆ©rio G., Comin-Chiaramonti, Piero, De Min, Angelo, Gomes, Celso B. (2012) The BanhadĆ£o Alkaline Complex, Southeastern Brazil: source and evolution of potassic SiO2-undersaturated high-Ca and low-Ca magmatic series. Mineralogy and Petrology, 104 (1) 63-80 doi:10.1007/s00710-011-0171-9 | Journal (article/letter/editorial) | (Wo47-38En46-37Ae0-8) + phlogopite + apatite + perovskite (Prv>92) crystallized to form the phlogopite...abundance with accessory apatite, magnetite, perovskite and calcite. Diopside is commonly prismatic and...āschorlomite-fixed trendā may be due to the presence of perovskite rather than titanite in phl-Mtg. These phases...the lithologies but is absent in phl-Mtg where perovskite occurs. Titanite, ideally CaTi(SiO) 4 (O,OH,F)...rocks. Perovskite crystals occur only in phl-Mtg and show more than 74 mol% of the perovskite end-member | | | Report (issue) | -_-_____-____ Management of natural resources on the public land. _ Classification of mineral lands. _______________...engineering geology ___ Problems in engineering hydrology. Land subsidence. _________-__ Artificial recharge _ _...England and eastern New York.. ___________ Appalachian region. ___________________________ Eastern plateaus..._______ Interior Highlands and eastern plains _____-__-_-Northern Rocky Mountains and plains ___________ Southern...Southern Rocky Mountains and plains ___________ Colorado Plateau_-_____--__-____-____--_-_-_-_ Basin and |
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