 | 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...breakdown product, with plagioclase, clinopyroxene, ; olivine ; Ti-magnetite + melt, of kaersutite, and as...as microphenocrysts (with olivine, plagioclase, clinopyroxene) in pockets of basanitic melt. RhoÌnite...product after Ti-amphibole indicates that the Mount Sidley rhoÌnite (and associated minerals) formed between |  | | Journal (article/letter/editorial) | | PhonoliteâTrachyte Succession at Mount Sidley, Marie Byrd Land, Antarctica KURT S. PANTER1â, 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 (0·7028â 0·7032), 143Nd/144Ndi (0·51285â0·51290)...modeled by fractionation of diopside, olivine, plagioclase, titaniferous magnetite, nepheline and/or apatite |  | 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 EnĂironmental Sciences, Western State College, Gunnison, CO 81231, USA Department...basalts from the Crary Mountains, eastern Marie Byrd Land, Antarctica have low 87Srr86 Sr Ćœ0.70267â0.70283...together with Hobbs Coast basalts from western Marie Byrd Land have the strongest HIMU signature Ćœ206...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) | | northâsouth-oriented fractures, away from the Marie Byrd Land dome8. Active volcanism has also been reported...37 seismic stations in Marie Byrd Land, a highland region of West Antarctica (Fig. 1). They identified...boundary between the crust and mantle beneath Marie Byrd Land, much © NG IMAGES / ALAMY he West Antarctic...surrounding floating ice shelves that buttress the land-based ice are eaten away at their base by warmer...waters1. However, the ice can also melt from below on land, where subglacial volcanic activity causes a high |  | 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 âą Sung Hi Choi âą...2011 Ă 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...history, by fractionating a high proportion of plagioclase under low pH2O. Mantle plume activity appears...rocks by fractional crystallization. Keywords Marie Byrd Land dome Polybaric fractionation Pantellerite |  | | Journal (article/letter/editorial) | | Cenozoic, alkalic volcanic lineages at Mount Morning, West Antarctica and their entrained lithospheric mantle...identiïŹed at Mount Morning, a Cenozoic to recent, eruptive centre in the Ross Sea, West Antarctica, which is...trace element and isotope variation (SrâNdâPb) in Mount Morning basaltic rocks and entrained xenoliths suggests...volcanic rocks in Antarctica (Victoria Land â including Mount Morning â and Marie Byrd Land), Zealandia and...measured in some SCLM xenoliths and volcanic rocks at Mount Morning, and in volcanic rocks across the DAMP, |  | | Report (chapter) | | 3, 2015 Lithospheric mantle domains beneath Antarctica P. T. L E A T 1, A . A. D E A N 1, I. L. M I...mantle sources. Data have been collated from Antarctica and the Falkland Islands (adjacent in Gondwana)...Proterozoic cratonic and circumcratonic areas of East Antarctica have time-corrected end values of -20 to -3....lithosphere-derived marie rocks from Middle Proterozoic to Early Palaeozoic areas of West Antarctica, Victoria...Victoria Land and the Falkland Islands that formed the Gondwana continental margin, have timecorrected eyd values |  | | 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 |  | Kipf, A., Hauff, F., Werner, R., Gohl, K., van den Bogaard, P., Hoernle, K., Maicher, D., KlĂŒgel, A. (2014) Seamounts off the West Antarctic margin: A case for non-hotspot driven intraplate volcanism. Gondwana Research, 25 (4) 1660-1679 doi:10.1016/j.gr.2013.06.013 | Journal (article/letter/editorial) | | pertain. ACCEPTED MANUSCRIPT Kipf et al.: Marie Byrd Seamounts⊠1 SEAMOUNTS OFF THE WEST ANTARCTIC...geochemical data of volcanic rocks from the guyot-type Marie Byrd Seamounts (MBS) and the De Gerlache Seamounts...lithosphere during the pre-rifting stage of Marie Byrd Land/Zealandia to explain intraplate volcanism in...rise of the HIMU material from the base of Marie Byrd Land to form the MBS. The De Gerlache Seamounts...Gerlache Gravity Anomaly. CE P KEYWORDS: Antarctica, Marie Byrd Seamounts, intraplate volcanism, 40 Ar/39Ar |  | Sharygin, V.V., KĂłthay, K., SzabĂł, 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 (1180â1260 °C) and P < 0.5 kbar. The petrography...can be associated with olivine, clinopyroxene, plagioclase, feldspathoids, and spinel (Grapes and Keller...Olsson, 1983 Iceland plume Prestvik et al., 1999 Western Romania Downes et al., 1995; Seghedi et al., 1995...TĂłth, 2003 Poland Ladenberger et al., 2006 Antarctica Kyle and Price, 1975; Wysoczanski, 1993 Cape...1964 Eifel, Germany Shaw and KlĂŒgel, 2002 Antarctica Gamble and Kyle; 1987; Grapes et al., 2003 |  | | Journal (article/letter/editorial) | | Aris collectively exhibit a narrow compositional range and represent a single magma system of highly evolved...identical to a small occurrence of associated plagioclase-bearing nephelinite indicating a possible petrogenetic...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° 10.755âČ E â Fig. 1), the highest peak in the range just S of Windhoek (see Fig 22.11 in Miller, 2008 |  | | Journal (article/letter/editorial) | | 96Al2.04)6O20 in limburgite. Mg/(Mg ĂŸ Fe2ĂŸ) ratios range between 0.40 and 0.49, and the Fe2ĂŸ-rich rhoÌnite...olivine, TiâAl-bearing augite (ââfassaiteââ), plagioclase, titanian magnetite, apatite, K-feldspar, melilite...compositions indicating that there is an almost continuous range of Fe2ĂŸ $ Mg substitution with Mg/(Mg ĂŸ Fe2ĂŸ) ranging...assemblage rhoÌnite ĂŸ olivine ĂŸ clinopyroxene ĂŸ plagioclase ĂŸ magnetite at temperatures ,1090 C. Experimental...xenoliths from Foster Crater, McMurdo Volcanic Group, Antarctica. J. Petrol., 28, 755â780. Ghiorso, M.S. & Sack |  | | 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...Synâcaldera Phreatomagmatic Group Ring Feeder Group Western Pumice Group Enkorika Fissure Group Early Postâcaldera...(RFG, S3), including trachytic lava ïŹows; (c) the Western Pumice Group (WPG, S4) consisting of pumice-lapilli...(Omenda, 1997). Fig. 2. SimpliïŹed geologic map of Mount Suswa following Skilling (1988, 1993). J.C. White |  | | Journal (article/letter/editorial) | | Ca-K sanidine Albite Diopside Foid K-feldspar Plagioclase Clinopyroxene Olivine Mica VillaÌny Mountains...ruled out due to the absence of olivine and/or plagioclase in the mineral assemblage of the carbonatite...of Lindsley (1983) yielded a rather inconsistent range of temperatures between 880 and 1200ÂșC, in spite...MasÌkovaÌ 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 maïŹc and ultramaïŹc |  | 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...is its distal equivalent. The eruptive products range from poorly vesicular (<25%) and crystalline (diktytaxitic...clinopyroxene (Fig. 7b). Overall, in the temperature range 850â1000 °C, the effect of H2O in decreasing the...6f). A pressure of 500 MPa subdues both the plagioclase and clinopyroxene saturation surfaces, resulting |  | 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) | | (stage-4). The results affirm the advantages of using a range of compositional and textural records in modeling...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...deposits are well preserved on the southern and western flanks of the volcano and consist of thick lava...microlite feldspars have a broad 125 composition range from oligoclase-andesine (An28â49) to anorthoclase-sanidine |  | | Journal (article/letter/editorial) | | calcic plagioclases have been altered to albitic plagioclase, and Rb has clearly been altered; however, Ba...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) | | amphibole breakdown coronas (olivine + Tiaugite + plagioclase + magnetite + ilmenite + rhfnite) in response...01 m/s, corresponding to an ascent time in the range of 5â29 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 westernâsouthern domain characterized by a variably thick...orientation and particularly well exposed in the western side of the island. 153 Fig. 3. Microscope photo |  | | Journal (article/letter/editorial) | | latter can be followed for 50â60 cm along the western contact, which is the least deformed part of the...sample 400Shch-5 is an amphibole-biotitetitanite-plagioclase schist with accessory zircon, apatite, and ilmenite...5O18] âZircon Pointâ, Khmara Bay, Enderby Land, Antarctica Metamorphosed granite pegmatitic leucosomes...much more dominant and coarser-grained than plagioclase. Quartz locally appears granulated and the pegmatite... Appendix 1, Table 4). It is separated from plagioclase by a discontinuous, thin selvage of phenakite |  | | Journal (article/letter/editorial) | | alkali lamprophyre dyke swarm was emplaced in western South Island, New Zealand, during transtensional...aegirineâriebeckite schists. Carbonatites show a wide range of compositions from calcite- through dolomiteâankerite-...revised classification of Tappe et al. (2005) and plagioclase-bearing (camptonite) lamprophyres, tinguaite...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 |  | 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 maficâultramafic...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) charnockiteâmigmatite...Dharwar craton with the Napier complex of East Antarctica. A second major igneous event, associated with...show effects of strain including bending of plagioclase. High-Al gabbroic dykes are most common in the |  | | Journal (article/letter/editorial) | | coexists with Mg-Fe olivine, clinopyroxene, plagioclase, titanium magnetite, spinel ± Ti-Al augite (âfassaiteâ)...kaersutite-bearing spinel-wehrlite xenoliths in Foster Crater, Antarctica (Gamble and Kyle, 1987); (5) tephrite and nepheline...(38â44 wt.% SiO2) with melilite, clinopyroxene, plagioclase and nepheline (olivine-melilite nephelinites)...The glass encloses partially molten quartz and plagioclase (andesine) grains, as well as rare inclusions...composed of 200â400 ”m melilite and clinopyroxene ± plagioclase and Mg-Fe olivine microphenocrysts, with nepheline |  | | 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 NEâSW extension within western Anatolia initiated the formation of prominent NWâSE |
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