 | | Journal (article/letter/editorial) | | Osumilite-Sapphirine-Quartz Granulites From Enderby Land Antarctica Mineral Assemblages and Reactions* D.J...granulites of Enderby Land Antarctica, contain coexisting spinel-quartz, sapphirine-quartz, hypersthene-sillimanite-quartz...common rock compositions, garnet, cordierite, hypersthene, sapphirine and sillimanite cannot coexist with...field of cordierite, such as sapphirine-quartz, hypersthene-sillimanite (or kyanite). Such examples provide...: Osumilite-Sapphirine-Quartz Granulites From Antarctica are rare in nature, and are restricted to isolated |  | | Journal (article/letter/editorial) | | fragments, particularly the relation between East Antarctica, and the Indian subcontinent. A considerable...considerable development in recent studies in East Antarctica has been the recognition of contrasting thermal histories...principal lithological and structural elements. (1) Eastern Vijayan Series; (2) Western Vijayan Series; (3)...(Cooray, 1961). It is bounded to the east by the Eastern Vijayan Complex which comprises predominantly amphibolite...grade granitic and migmatitic gneisses in the eastern lowlands (Fig. 1). For much of its length the boundary |  | | Journal (article/letter/editorial) | | exsolution in granulites from Fyfe Hills, Enderby Land, Antarctica: Evidencefor 1000 oC metamorphictemperaturesin...orourpaper rnadiscussion granulites from Fyfe Hills, Enderby I Evidence for 1000 "c metamorphic ter cheancontinental...therefore cannot be igneour the metapelitesin the Enderby Land g number of exceptionallyrare assembla6 regional...with subordinatepyroxt out the Napier complex in Enderby typically occur as horizons lessthan 3 with aluminous...Enu64ress:DepartmentofGeology,universityofAdederby Land in recent years concerning the exceptional' laide |  | | Journal (article/letter/editorial) | | METAMORPHIC TERRAIN: LATE PROTEROZOIC DATES FROM THE EASTERN GHATS PROVINCE OF INDIA EDWARD S. GREW Department...metamorphic terrain: late Proterozoic dates from the Eastern Ghats Province of India. Precambrian Res., 33:...perrierite and zircons in two samples from the Eastern Ghats Province of South India, a sapphirine-bearing...late Proterozoic granulite-facies event in the Eastern Ghats Province. In reassemblies of Gondwanaland...proposal, the Eastern Ghats Province is juxtaposed against a high-grade terrain in East Antarctica affected |  | | Journal (article/letter/editorial) | | T i O 2 - 0 2 in the presence of quartz and hypersthene Roger Powell and Michael Sandiford Department...(henceforth magnetite), in the presence of quartz and hypersthene in the system F e O - M g O - A 1 2 0 3 - S i...the sillimanite-sapphirine-cordierite-garnet-hypersthene-quartz assemblage is in equilibrium at about...kbars, while sapphirine-cordierite-spinel-garnet-hypersthene-quartz occurs at temperatures in excess of those...Napier Complex, Antarctica, can only occur at > 1000 ~ C. Also, spinel-rutile-hypersthene-quartz assemblages |  | | Journal (article/letter/editorial) | | tandfonline.com/loi/tigr20 The oldest rocks of Antarctica (Enderby Land) E.V. Sobotovich a b c a a b c & V.A...V.A. Rudnik (1976) The oldest rocks of Antarctica (Enderby Land), International Geology Review, 18:4,...page/terms-and-conditions The oldest rocks of Antarctica (Enderby Land) Downloaded by [New York University]...the oldest rocks of the crystalline basement of Antarctica, owing to the ncod for reliably ascertain ing...in particular, the supracrustal complexes of Enderby Land (Ravich and Kamenev, 1972). Besides ordinary |  | | Journal (article/letter/editorial) | | Geochronology of Proterozoic Tholeiite Dykes of East Antarctica: Evidence for Mantle Metasomatism J.W. Sheraton...high-grade metamorphics of the Napier Complex in Enderby Land. Middle Proterozoic Amundsen dykes are typical...komatiitic affinity, ranging in composition from hypersthene-rich tholeiite (norite) to quartz-rich tholeiite...//~f,l//z/,/,/zl/ " " " " " " " / LAND ~S,~/~ ~ " "" LAND LAND Vestfold ~ ~/x.x//l 9 .., . Late...;zz~%','..~,~,,~//,'t4~ ~'o% ~" PRINCESS ELIZABETH LAND "~ , ~ " " , . ~ -X-~[[~ EarlyArchaean Napier |  | Chetty, T.R.K., Vijay, P., Narayana, B.L., Giridhar, G.V. (2003) Structure of the Nagavali Shear Zone, Eastern Ghats Mobile Belt, India: Correlation in the East Gondwana Reconstruction. Gondwana Research, 6 (2) 215-229 doi:10.1016/s1342-937x(05)70971-0 | Journal (article/letter/editorial) | | 1342-937X GR;Z Structure of the Nagavali Shear Zone, Eastern Ghats Mobile Belt, India: Correlation in the East...tectonic framework of the central part of the Eastern Ghats Mobile Belt. The complex geology of the study...reworking. Regionally, the central part of the Eastern Ghats Mobile Belt can be divided into five distinct...data, Eastern Ghats, shear zones, megacrystic gneisses, East Gondwana. Introduction The Eastern Ghats...forms a major part of Mesoproterozoic Circum East Antarctica Mobile Belt (Yoshida, 1995). The EGMB plays a |  | | Journal (article/letter/editorial) | | cordierite by sillimanite and hypersthene and formation of sapphirine-hypersthene-K-feldspar-quartz symplectites...comparatively low A12Oa-contents of secondary hypersthene. This pressure-temperature path implies that:...the unusual symplectite assemblage sapphirine-hypersthene-K-feldspar-quartz believed to derive from prograde...Quartz Plagioclase K-feldspar Osumilitea Garnet Hypersthene 4799 4 8 0 0 4801 4802 4803 4804 4805 4806...equilibrated texture between three phases including hypersthene (hy) and quartz (q). The third phase, (o), has |  | | Journal (article/letter/editorial) | | Garnet-Orthopyroxene Bearing Granulites from Enderby Land, Antarctica: Metamorphic Pressure-Temperature-Time...assemblages from the Archaean Napier Complex, Enderby Land, Antarctica, display a variety of exsolution, recrystallization...Napier Complex (Ravich & Kamenev, 1975) of Enderby Land, Antarctica, is unusual among granulite facies terrains...et al, 1980; Ellis et al, 1980; Grew, 1980), hypersthene-sillimanite (Harley, 1981 and in prep.), and...extensive area (10-15 x 103 km2) in south-western Enderby Land, primary garnet-cordierite assemblages were |  | | Journal (article/letter/editorial) | | Osumilite-Sapphirine-Quartz Granulites From Enderby Land, Antarctica: P--T Conditions of Metamorphism, Implications...Osumilite-sapphirine-quartz granulites from Enderby Land, Antarctica (Ellis et al. 1980) were metamorphosed...the exposure of these unusual granulites in Enderby Land are considered. Although they formed at much...independent of T as well as P and Pn2o- The Enderby Land granulites have been metamorphosed under P-Tconditions... in which spinel-quartz, sapphirine-quartz, hypersthene-sillimanite-quartz and osumilite developed (Ellis |  | | Journal (article/letter/editorial) | | known the geological structure of the wonderful land that has been committed to its care. The problem...(1926) as " essentially a hypersthene granite . . . composed of hypersthene, microcline, quartz, and iron...examination of a group of rocks collected from Enderby Land, Antarctica, by the B.A.N.Z. Antarctic Research Expedition...foliation given by the linear disposition of hypersthene and by discontinuous bands of quartz. The constituents...constituents are quartz, plagioclase (antiperthite), hypersthene, and as accessory constituents, magnetite and |  | | Journal (article/letter/editorial) | | sapphirine-cordierite-garnet-sillimanite granulite from Enderby Land, Antarctica: implications for FMAS petrogenetic grids...Sones, in the Archaean Napier complex of Enderby Land, Antarctica, contains the stable divariant FMAS assemblage...interpreted to indicate the former stability of a hypersthene-quartz absent assemblage followed by the development...invariant point involving the phases spinel, garnet, hypersthene, cordierite, sillimanite and quartz. The observed...Complex. Introduction The Napier Complex of Enderby Land, Antarctica, is an Archaean, 3070 Ma (Sheraton and |  | | Book | | PUBLICATIONS EXCHANGE AGREEMENT BEDROCK GEOLOGY JU ANTARCTICA Alfred R. Taylor U.S. Antarctic Projects Officer...Washington BEDROCK GEOLOGY OFFICER D.C. OF ANTARCTICA by Alfred R, Taylor LTJG, USNR June 1960 Introduction...Island Arc and Palmer Peninsula Marie Byrd Land and "Ellsworth Land" Volcanic Islands on West Side of the...Trans-antarctic Mountain Belt Wilkes Land-Enderby Land Queen Maud Land-Coats Land Structural Relationship of the...org/details/bedrockgeologyot0Otay! INTRODUCTION Antarctica It was gan. in the was visited early as |  | | Journal (article/letter/editorial) | | Metamorphic evolution of the Bunger Hills, East Antarctica: evidence for substantial post-metamorphic peak...3052, Australia ABSTRACT The Bunger Hills, East Antarctica, experienced a low-pressure granulite facies...lowermost crust. Key words: Bunger Hills, East Antarctica; compression; granulite facies; Proterozoic orogeny;...have been recorded from the Napier Complex in Enderby Land (Ellis, Sheraton, England & Dallwitz, 1980;...Harley, 1985; Sandiford, 1985), from MacRobertson Land (Clarke, Powell & Guiraud, 1989) and possibly from |  | | Journal (article/letter/editorial) | | Mafic Dyke Swarm in the Archaean Vestfold Block, Antarctica: Inferences about Proterozoic Dyke Emplacement...ABSTRACT Archaean gneisses in the Vestfold Block, Antarctica are cut by abundant tholeiite and rare alkaline...mantle source region. 2400 Ma high-Mg dykes in Enderby Land have virtually identical chemical and isotopic...Shield (James & Tingey, 1983), is situated on the eastern shore of Prydz Bay, occupying a relatively ice-free...form important lithostratigraphic markers in Enderby Land, the southern Prince Charles Mountains, the |  | | Journal (article/letter/editorial) | | RAYNER COMPLEX, MacROBERTSON AND KEMP LAND COAST, EAST ANTARCTICA GEOFFREY L. CLARKE* Department of Geology...Rayner Complex, MacRobertson and Kemp Land coast, East Antarctica. Precambrian Res., 40/41: 137-156. The...rocks exposed along the MacRobertson and east Kemp Land coasts consist of, in the west, Archaean gneisses...coastline of MacRobertson, Kemp and Enderby Land, East Antarctica (Sheraton et al., 1980 ). An Archaean...block, the Napier Complex, comprises most of the Enderby Land promontory, and is bounded on both sides and |  | SENGUPTA, P., KARMAKAR, S., DASGUPTA, S., FUKUOKA, M. (1991) Petrology of spinel granulites from Araku, Eastern Ghats, India, and a petrogenetic grid for sapphirine-free rocks in the system FMAS. Journal of Metamorphic Geology, 9 (4) 451-459 doi:10.1111/j.1525-1314.1991.tb00539.x | Journal (article/letter/editorial) | | 451-459 Petrology of spinel granulites from Araku, Eastern Ghats, India, and a petrogenetic grid for sapphirine-free...assemblages in Fe-rich granulites from the Araku area, Eastern Ghats belt, India. Subsequent reactions produced...met-quartzsillimanite-hypersthene, sapphirine-spinel-cordierite- hypersthene-sillimanite-quartz and...and sillimanite-spinelcordierite-garnet-hypersthene-quartz are not well constrained from experimental and...occurrences include sapphirinespinel-quartz-hypersthene-sillimanite-hematite-magnetite (Caporuscio & |  | | Journal (article/letter/editorial) | | Springer-Verlag1991 The stability of sapphirine-quartz and hypersthene-sillimanite-quartz assemblages: an experimental...involving the phases garnet (Gt), spinel (Sp), hypersthene (Hy), sapphirine (Sa), cordierite (Cd), sillimanite...Mg)3A12Si3Olz) Her = hercynite (FeA120~) Hy = hypersthene ((Mg,Fe)SiO3) Liq = liquid Qz = quartz (SiO2)...are in Precambrian granulites facies terranes: Enderby Land, Antartica (Dallwitz 1968; Ellis et al. 1980;...1971), Manitoba, Canada (Arima and Barnett 1984), Eastern Siberia, Russia (Perchuk et al. 1985), South India |  | | Report (chapter) | | The Archaean geological evolution of Enderby Land, Antarctica S. L. Harley and L. P. Black Geological... The Archaean geological evolution of Enderby Land, Antarctica S. L. Harley & L. P. Black SUMMARY: The...The Napier Complex of Enderby Land, Antarctica, is a major terrain exhibiting Archaean granulite-facies...gneiss terrain (Napier Complex) of Enderby Land, east Antarctica (Fig. 1), has, in recent years, become...These early studies demonstrated the presence in Enderby land of very high-grade mineral parageneses such |  | | Journal (article/letter/editorial) | | OF EARLY ARCHAEAN ROCKS AT FYFE HILLS, ENDERBY LAND, ANTARCTICA L.P. BLACK Bureau of Mineral Resources...Hills, Enderby Land, Antarctica. Precambrian Res., 21: 197--222. The Fyfe Hills of Enderby Land, Antarctica...current poor understanding of the geochronology of Enderby Land (and that of the shield itself) results from...resetting. Until recently, isotopic dating in Enderby Land was concentrated in the mobile-belt rocks of...recorded in the cratonic rocks (Napier Complex) of Enderby Land, geochronological interest in which was stimulated |  | | Journal (article/letter/editorial) | | the minerals cordierite (Cd), sapphirine (Sa), hypersthene (Hy), garnet (Ga), spinel (Sp), sillimanite (Si)...minerals such as sapphirine, spinel, cordierite and hypersthene, makes them potentially useful indicators of...Molar volume* Mineral cordierite sapphirine hypersthene spinel garnet sillimanite kyanite corundum Abbreviation...reactions that involve cordierite, sapphirine, hypersthene, spinel, garnet, sillimanite and corundum were...spinel and sillimanite, becomes stable with hypersthene, cordierite and garnet. The resulting P-T grid |  | | Journal (article/letter/editorial) | | Proterozoic Eastern Ghats Mobile Belt: A Proposed Correlation Between India and Antarctica in Gondwana...accepted June 3,2003) Abstract The Proterozoic Eastern Ghats Mobile Belt along the east coast of India...the northwestern corner of the mobile belt. The Eastern Ghats Mobile Belt is divided into two lithotectonic...from a Deep Seismic Sounding (DSS) profile of the Eastern Ghats crust, the Terrane Boundary Shear Zone is...and granulite metamorphism that occurred in the Eastern Ghats, as in the Caledonide type of fold thrust |  | | Journal (article/letter/editorial) | | anorthosite complexes. Nevertheless, a U-Pb date on a hypersthene from the granulites of the Chogar complex (3050...gabbro-norites and olivine gabbros, and two-pyroxene and hypersthene gneisses. Anorthositic gabbros and anorthosites...gabbro-norites and gabbros, two-pyroxene and hypersthene gneisses, and olivine gabbros; 11-14) rocks of...and olivinites, 12) enderbites, 13) garnet and hypersthene gneisses, granulites, charnockites, and migmatites...section show changes in the iron index of garnet, hypersthene, and cordierite, and the horizontal line marks |  | | Journal (article/letter/editorial) | | WITH MAINLAND ROCK OUTCROPS ALONG THE COAST OF ANTARCTICA BETWEEN LONGITUDES 40°E AND 150°E C. C. VON DER...outcrop pattern based on the geological map of Antarctica of RAVICHet al., 1965. The relationship between...-) -4 )0 HEAVY MINERALS ALONG THE COAST OF ANTARCTICA 79 likely to contain amphibole which, though...Sedimentary material more than a certain distance from land is unlikely to be correlatable with adjacent outcrops...Heavy minerals are garnet, hypersthene and amphibole. The presence of hypersthene in assemblages from this |
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