 | Wysoczanski, R.J., Gamble, J.A., Kyle, P.R., Thirlwall, M.F. (1995) The petrology of lower crustal xenoliths from the Executive Committee Range, Marie Byrd Land Volcanic Province, West Antarctica. Lithos, 36 (3) 185-201 doi:10.1016/0024-4937(95)00017-8 | Journal (article/letter/editorial) | | xenoliths from the Executive Committee Range, Marie Byrd Land Volcanic Province, West Antarctica R.J. Wysoczanski...magmas from the late-Cenozoic Marie Byrd Land Volcanic Province, West Antarctica, have entrained lithospheric...collected from the Executive Committee Range (Mounts Hampton in the north and Mount Sidley in the south) in...in central Marie Byrd Land, and their petrological characteristics together with preliminary geochemicai...xenoliths from Mounts Hampton and Sidley differ (e.g. Mount Sidley xenoliths have Mg# 32-80, are relatively |  | | Journal (article/letter/editorial) | | in pyroxenite xenoliths, Mount Sidley volcano, Marie Byrd Land, West Antarctica R. H. GRAPES1,*, R. J....in phonolite from the Mount Sidley composite volcano, Marie Byrd Land, Antarctica, as a localized breakdown...product after Ti-amphibole indicates that the Mount Sidley rhönite (and associated minerals) formed between...: rhonöte, pyroxenite xenoliths, Mount Sidney, volcano, Antarctica, kaersutite. Introduction RHÖNITE...K-feldspar, kaersutite, ; nepheline, ; leucite, apatite, Ti-magnetite ; ilmenite (Soellner, 1907; Lacroix |  | | Journal (article/letter/editorial) | | Phonolite–Trachyte Succession at Mount Sidley, Marie Byrd Land, Antarctica KURT S. PANTER1∗, PHILIP R. KYLE1...the Late Pliocene (5·7 to 4·2 Ma) Mt Sidley volcano, Marie Byrd Land, is examined using major and trace...caldera exposes lavas and tephras, deep within Mt Sidley, and allows its magmatic evolution to be elucidated...compositions in both series fall within a narrow range of 87Sr/86Sri (0·7028– 0·7032), 143Nd/144Ndi (0·51285–0·51290)...plagioclase, titaniferous magnetite, nepheline and/or apatite from basanite to derive 35% mugearite, 25% benmoreite |  | Panter, Kurt S, Hart, Stanley R, Kyle, Philip, Blusztanjn, Jerzy, Wilch, Thom (2000) Geochemistry of Late Cenozoic basalts from the Crary Mountains: characterization of mantle sources in Marie Byrd Land, Antarctica. Chemical Geology, 165 (3) 215-241 doi:10.1016/s0009-2541(99)00171-0 | Journal (article/letter/editorial) | | characterization of mantle sources in Marie Byrd Land, Antarctica Kurt S. Panter a,) , Stanley R. Hart...Department of Natural and EnÕironmental Sciences, Western State College, Gunnison, CO 81231, USA Department...basalts from the Crary Mountains, eastern Marie Byrd Land, Antarctica have low 87Srr86 Sr Ž0.70267–0.70283...together with Hobbs Coast basalts from western Marie Byrd Land have the strongest HIMU signature Ž206...Tasmania and New Zealand which were adjacent to the Antarctica coast prior to the mid-Cretaceous fragmentation |  | LeMasurier, Wesley E., Futa, Kiyoto, Hole, Malcolm, Kawachi, Yosuke (2003) Polybaric Evolution of Phonolite, Trachyte, and Rhyolite Volcanoes in Eastern Marie Byrd Land, Antarctica: Controls on Peralkalinity and Silica Saturation. International Geology Review, 45 (12) 1055-1099 doi:10.2747/0020-6814.45.12.1055 | Journal (article/letter/editorial) | | Trachyte, and Rhyolite Volcanoes in Eastern Marie Byrd Land, Antarctica: Controls on Peralkalinity and Silica...Trachyte, and Rhyolite Volcanoes in Eastern Marie Byrd Land, Antarctica: Controls on Peralkalinity and Silica...Trachyte, and Rhyolite Volcanoes in Eastern Marie Byrd Land, Antarctica: Controls on Peralkalinity and Silica...Otago, Dunedin, New Zealand2 Abstract In the Marie Byrd Land volcanic province, peralkaline and metaluminous...contamination. We focus on volcanoes of the Executive Committee Range and Mount Murphy, where we find good representation |  | | Journal (article/letter/editorial) | | Cenozoic, alkalic volcanic lineages at Mount Morning, West Antarctica and their entrained lithospheric mantle...identified at Mount Morning, a Cenozoic to recent, eruptive centre in the Ross Sea, West Antarctica, which is...trace element and isotope variation (Sr–Nd–Pb) in Mount Morning basaltic rocks and entrained xenoliths suggests...volcanic rocks in Antarctica (Victoria Land – including Mount Morning – and Marie Byrd Land), Zealandia and...measured in some SCLM xenoliths and volcanic rocks at Mount Morning, and in volcanic rocks across the DAMP, |  | LeMasurier, Wesley E., Choi, Sung Hi, Kawachi, Y., Mukasa, Samuel B., Rogers, N. W. (2011) Evolution of pantellerite-trachyte-phonolite volcanoes by fractional crystallization of basanite magma in a continental rift setting, Marie Byrd Land, Antarctica. Contributions to Mineralogy and Petrology, 162 (6) 1175-1199 doi:10.1007/s00410-011-0646-z | Journal (article/letter/editorial) | | magma in a continental rift setting, Marie Byrd Land, Antarctica Wesley E. LeMasurier • Sung Hi Choi •...2011 Ó Springer-Verlag 2011 Abstract The Marie Byrd Land province includes 18 large (up to 1,800 km3)...isotopic equilibrium throughout the basalt-felsic range, and the results of modeling, all exclude significant...rocks by fractional crystallization. Keywords Marie Byrd Land dome Polybaric fractionation Pantellerite...which is available to authorized users. The Marie Byrd Land (MBL) province lies within the West Antarctic |  | | Report (chapter) | | evolution of hydrovolcanic deltas in Marie Byrd Land, Antarctica W. E. L E M A S U R I E R University...wlemasur@carbon.cudenver.edu) Abstract: The Marie Byrd Land volcanic province is a late Cenozoic alkaline...basalttrachyte volcanic field on the Pacific coast of West Antarctica. Most of these volcanoes are partially buried...province-wide lack of pillow lava cores in Marie Byrd Land englacial volcanoes, and factors that may be...ice or water level. Hydrovolcanic phenomena in Antarctica have been compared to this model since the earliest |  | Sharygin, V.V., Kóthay, K., Szabó, Cs., Timina, T.Ju., Török, K., Vapnik, Ye., Kuzmin, D.V. (2011) Rhönite in alkali basalts: silicate melt inclusions in olivine phenocrysts. Russian Geology and Geophysics, 52 (11) 1334-1352 doi:10.1016/j.rgg.2011.10.006 | Journal (article/letter/editorial) | | kbar. Rhönite crystallized in a narrow temperature range (1180–1260 °C) and P < 0.5 kbar. The petrography...sequence: Al-spinel → rhönite → clinopyroxene → apatite → ± amphibole, Fe-Ti oxide (ilmenite or Ti-magnetite)...Olsson, 1983 Iceland plume Prestvik et al., 1999 Western Romania Downes et al., 1995; Seghedi et al., 1995...Tóth, 2003 Poland Ladenberger et al., 2006 Antarctica Kyle and Price, 1975; Wysoczanski, 1993 Cape...1964 Eifel, Germany Shaw and Klügel, 2002 Antarctica Gamble and Kyle; 1987; Grapes et al., 2003 |  | | Journal (article/letter/editorial) | | Elsevier B.V. All rights reserved. 1. Introduction Mount Suswa is a large (>700 km 2) trachytic shield volcano...west Africa (Fitton, 1987); the Marie Byrd Land province, west Antarctica rift system (LeMasurier et al...Syn‐caldera Phreatomagmatic Group Ring Feeder Group Western Pumice Group Enkorika Fissure Group Early Post‐caldera...(RFG, S3), including trachytic lava flows; (c) the Western Pumice Group (WPG, S4) consisting of pumice-lapilli...(Omenda, 1997). Fig. 2. Simplified geologic map of Mount Suswa following Skilling (1988, 1993). J.C. White |  | | Journal (article/letter/editorial) | | Aris collectively exhibit a narrow compositional range and represent a single magma system of highly evolved...approaching 1 km3 ) are widespread throughout western southern Africa from Windhoek (in Namibia) southwards...felsic trachytes and phonolites. Available ages range from 77 to 32 Ma but relatively few occurrences...17° 10.755′ E — Fig. 1), the highest peak in the range just S of Windhoek (see Fig 22.11 in Miller, 2008...presence of aenigmatite, ferropargasite, kaersutite, apatite, aragonite, calcite, leucite, fluorite and biotite |  | | Book | | 6-15 August 1970, organized by the SCIENTIFIC COMMITTEE ON ANTARCTIC RESEARCH and sponsored by the INTERNATIONAL...earth scientists in the scientific exploration of Antarctica can best be judged from the fact that 7 years...Cape Town, Antarctic earth scientists were able to mount a larger but similarly effective symposium at Oslo...geology and solid earth geophysical literature of Antarctica. It is worth noting that two important differences...result of much work by the Norwegian National Committee under the Chairman, Dr T. Gjelsvik, and the grateful |  | | Journal (article/letter/editorial) | | 96Al2.04)6O20 in limburgite. Mg/(Mg þ Fe2þ) ratios range between 0.40 and 0.49, and the Fe2þ-rich rhönite...(‘‘fassaite’’), plagioclase, titanian magnetite, apatite, K-feldspar, melilite, titanian andradite, nepheline...compositions indicating that there is an almost continuous range of Fe2þ $ Mg substitution with Mg/(Mg þ Fe2þ) ranging...xenoliths from Foster Crater, McMurdo Volcanic Group, Antarctica. J. Petrol., 28, 755–780. Ghiorso, M.S. & Sack...in pyroxenite xenoliths, Mount Sidley volcano, Marie Byrd Land, West Antarctica. Mineral. Mag., 67, 629–651 |  | | Journal (article/letter/editorial) | | alkali lamprophyre dyke swarm was emplaced in western South Island, New Zealand, during transtensional...aegirine–riebeckite schists. Carbonatites show a wide range of compositions from calcite- through dolomite–ankerite-...(Paterson 1993). Other accessory minerals include apatite, monazite, sporadic barite, hematite, niobian rutile...synthetic standards were prepared to extend the range of calibration for Ca, Mg and Fe. Fused discs of...matrix-calibration curves and to extend the analytical range. Proportions of the stable isotopes were measured |  | | Journal (article/letter/editorial) | | and 5 vol.% carbonate, apatite and other silicates. The pyroxene and apatite form an equigranular cumulate...intergrain spaces among pyroxene grains (Px); (b) apatite (Ap) embedded in pyroxene; (c) phlogopite (Phl)...of Lindsley (1983) yielded a rather inconsistent range of temperatures between 880 and 1200ºC, in spite...Mašková at 6.7 7.5 kbar. The corresponding depth range of 25 28 km points to a strongly fractionated reservoir...References Barnes, S.J. and Roeder, P.L. (2001) The range of spinel compositions in terrestrial mafic and ultramafic |  | Brenna, Marco, Pontesilli, Alessio, Mollo, Silvio, Masotta, Matteo, Cronin, Shane J., Smith, Ian E.M., Moufti, Mohammed Rashad Hassan, Scarlato, Piergiorgio (2019) Intra-eruptive trachyte-phonolite transition: Natural evidence and experimental constraints on the role of crystal mushes. American Mineralogist, 104 (12) 1750-1764 doi:10.2138/am-2019-6963 | Journal (article/letter/editorial) | | (<200 MPa) reservoirs. In the Marie Byrd Land volcanic province (Antarctica), LeMasurier et al. 1750 Downloaded...of the Al Shaatha eruption along a wadi on the western side of the volcano. The crater rim (dashed) is...(Fe), rutile (Ti), orthoclase (K), barite (Ba), apatite (P), and spessartine (Mn). Sodium and potassium...is its distal equivalent. The eruptive products range from poorly vesicular (<25%) and crystalline (diktytaxitic...benmoreite (Electronic Appendix B1). Zircon and apatite occur as rare accessory mineral phases. Experimental |  | | Journal (article/letter/editorial) | | 40Ar/39Ar dating of lamprophyre dike swarms in the Western Province of New Zealand PT reveals these dikes...intraplate source. These dikes represent the oldest Western Province representatives of alkaline magmatism...precursor to the Alpine Fault. Dike emplacement in the Western Province coupled to metamorphism of the Alpine...separation occurring RI in the East Africa and West Antarctica rift systems (e.g. Jestin et al., 1994; Behrendt...continental separation of New Zealand, Australia and Antarctica. A voluminous suite of mafic, mainly lamprophyric |  | Eskandari, Amir, Deevsalar, Reza, De Rosa, Rosanna, Shinjo, Ryuichi, Donato, Paola, Neill, Iain (2020) Geochemical and isotopic constraints on the evolution of magma plumbing system at Damavand Volcano, N Iran. Lithos, 354. 105274 doi:10.1016/j.lithos.2019.105274 | Journal (article/letter/editorial) | | oligoclase-andesine, anorthoclase, phlogopite and apatite from intermediate enriched melts occurred at shallow...(stage-4). The results affirm the advantages of using a range of compositional and textural records in modeling...oligoclase-andesine, anorthoclase, 34 phlogopite and apatite from intermediate enriched melts occurred at shallow...The results affirm the 43 advantages of using a range of compositional and textural records in modeling...crustal thickness beneath the central part of Alborz range has been estimated from 46-58 km, 92 comprising |  | | Journal (article/letter/editorial) | | garnet, phlogopite, hornblende, monazite, and apatite. Peralkalic rocks tend to be much higher in Ce/Yb...value of Ba/Ce. The Bransfield Strait IAV in Antarctica plots closest to OIV, and is responsible for...Britain and Mariana Islands and Bransfield Strait, Antarctica: see Fig. BRUCE R. DOE Downloaded by [Temple...(Moll-Stalcup and Arth , 1991); Antarctica: Mt. Sidley plus Mt. Waesche, Marie Byrd Land (Panter et al., 1997)...Plateau on the West rift shoulder, Northern Victoria Land (Rocholl et al., 1995); Arizona: gabbroic xenoliths |  | | Journal (article/letter/editorial) | | latter can be followed for 50–60 cm along the western contact, which is the least deformed part of the...ite-plagioclase schist with accessory zircon, apatite, and ilmenite, the last mostly enclosed in titanite;...5O18] “Zircon Point”, Khmara Bay, Enderby Land, Antarctica Metamorphosed granite pegmatitic leucosomes...3 μm spot size. Standards were kyanite (SiKα), apatite (PKα), LiNbO3 (NbLα), LiTaO3 (TaMα), rutile (TiKα)...reÞnement. Estimated standard deviations (e.s.d.) range from 0.8–1.0% of the reÞned Be occupancies in makarochkinite |  | | Journal (article/letter/editorial) | | 01 m/s, corresponding to an ascent time in the range of 5–29 days for a depth of entrapment of 25 km...coeval (Aeolian archipelago) or older (e.g. the sea-mount Anchise, a few km west of Ustica, whose age is 3...thinned oceanic crust (about 8 km thick) and a western–southern domain characterized by a variably thick...orientation and particularly well exposed in the western side of the island. 153 Fig. 3. Microscope photo...island suggests five periods of activity in the range 735 to 130 ka (De Vita et al., 1998). From the volcanological |  | VIJAYAKUMAR, K, FROST, C, FROST, B, CHAMBERLAIN, K (2007) The Chimakurti, Errakonda, and Uppalapadu plutons, Eastern Ghats Belt, India: An unusual association of tholeiitic and alkaline magmatism. Lithos, 97 (1) 30-57 doi:10.1016/j.lithos.2006.11.008 | Journal (article/letter/editorial) | | Intraplate continental magmatism produces the widest range of magma compositions on Earth. These include mafic–ultramafic...Mesoproterozoic igneous activity in the transition and western charnockite zones. The box outlines the Prakasam...northwest to southeast they include 1) western charnockite zone, 2) western khondalite zone, 3) charnockite–migmatite...Dharwar craton with the Napier complex of East Antarctica. A second major igneous event, associated with...1997). Ferrosyenites of Errakonda occur along the western and southwestern margin of the Chimakurti pluton |  | | Journal (article/letter/editorial) | | clinopyroxene, titanomagnetite, plagioclase, apatite, ilmenite, and glass. Melt inclusions were found...between mountain structures of the Kuznetsk Alatau, western Sayan, and east- ern Sayan. A peculiar zone of...analyses), and the majority of pipes lay within the range 65–45 Ma [12]. According to recent 39Ar/40Ar datings...1280–1320°ë corresponding to the homogenization range of inclusions and exposed to the experimental temperature...clinopyroxene, calcic plagioclase, Ti-magnetite, F-apatite, ilmenite, and glass. In addition to glass (occasionally |  | | Journal (article/letter/editorial) | | Quaternary Kula Volcanic Province is located in western Anatolia, Turkey. This Na-alkaline anorogenic volcanism...to lower pressures. The Kula Volcanic Region in western Anatolia, Turkey represents one of the best preserved...contrast to older surrounding volcanic regions in western Anatolia (Fig. 1) that are dominated by K-enriched... Geological setting The geological history of western Anatolia is dominated by collisional tectonics...1996). This post-Oligocene NE–SW extension within western Anatolia initiated the formation of prominent NW–SE |  | Marzoli, Andrea, Renne, Paul R., Piccirillo, Enzo M., Francesca, Castorina, Bellieni, Giuliano, Melfi, Adolpho J., Nyobe, Jean B., N'ni, Jean (1999) Silicic magmas from the continental Cameroon Volcanic Line (Oku, Bambouto and Ngaoundere): 40 Ar- 39 Ar dates, petrology, Sr-Nd-O isotopes and their petrogenetic significance. Contributions to Mineralogy and Petrology, 135 (2) 133-150 doi:10.1007/s004100050502 | Journal (article/letter/editorial) | | younger (11-9 Ma) than the Q-trachytes of the Western Highlands. The least dierentiated silicic volcanics...mechanism for genesis of the silicic melts of both Western and Eastern Highlands, as shown by modeling major...genesis of the least evolved Q-trachytes from the Western Highlands, starting from slightly to moderately...data on the main silicic volcanic centres of the Western (Mt. Oku, Sabga and Mt. Bambouto) and Eastern (Ngaoundere...this study belong to the volcanic centres of the Western (Mt. Oku, Sabga area and Mt. Bambouto) and Eastern |
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