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| Springer-Verlag1985 Petrology and geochemistry of Rodrigues Island, Indian Ocean A.N. Baxter 1, B.G.J. Upton...Postfach 3060, D-6500 Mainz, FRG Abstract. Rodrigues Island is composed of a differentiated series of...an unusual degree of uniformity in Indian Ocean island sources. A small group of lavas with strong H R...refractory residua. Introduction Rodrigues, the easternmost of the Mascarene Island group of the western Indian...halfway between the Mid-Indian ocean ridge and Mauritius, at 19 ~ 4 2 ' S and 63 ~ 25' E. It forms the |
 | MACHIDA, SHIKI, ORIHASHI, YUJI, MAGNANI, MARCO, NEO, NATSUKI, WILSON, SAMANTHA, TANIMIZU, MASAHARU, YONEDA, SHIGEKAZU, YASUDA, ATSUSHI, TAMAKI, KENSAKU (2014) Regional mantle heterogeneity regulates melt production along the Réunion hotspot-influenced Central Indian Ridge. GEOCHEMICAL JOURNAL, 48 (5) 433-449 doi:10.2343/geochemj.2.0320 | Journal (article/letter/editorial) |
| source mantle for Rodrigues Ridge and the intermediate series of Mauritius Island (RE2, radiogenic enriched...Japan. 433 Fig. 1. Bathymetric maps around the Rodrigues segment (18–20 °S, between the Marie Celeste and...from the Piton de la Fournaise volcano of Réunion Island. From A to D, and A and B respectively represent...Central Indian Ridge (CIR) between 18°S and 20°S (Rodrigues segment) with the Réunion hotspot (Fig. 1), a...ridge-hotspot interaction, is more complicated. The Rodrigues, Three Magi, and Gasitao Ridges (Fig. 1) show |
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| The Mascarene Islands, R6union (R), Mauritius (M), and Rodrigues (Ro) are northwest of the triple junction...have been re- 381 A ~0 R°driguesL~~ I~ Mauritius (3 ~ .~," t J ~ i ~G. Figure 2B 70 ° 71°E...melt inclusion in olivine [38]; 4 = inclusion in spinel [42]; 5 = proposed parental basalt for picritic...60% 50% 20aS Carlsberg 70% O Carlsberg • Rodrigues • CIR • Reunion SEIR • St Paul /~ SWlR • Amsterdam...Islands (R~union, Mauritius and Rodrigues) and the easterly projection of the aseismic Rodrigues Ridge (Figs |
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| petrology of lavas from the submarine ¯anks of Reunion Island (western Indian Ocean): implications for magma...the ¯anks of Reunion island are reported. The submarine basalts of the island have major and trace element...agreement with the thickness of the plate beneath the island. Lavas from both Reunion volcanoes have similar...(Albarede et al., 1997). The subaerial volcanism of the island is well sampled and described, but little is known...rock samples from the submarine ¯ank of Reunion Island in order to determine possible differences between |
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| phase after extraction of LGT magmas at low ocean island basalts degrees of melting. Low absolute abundances...Basin Tromelin y 20°S Bassa da India Europa Mauritius Reunion Reunion Basin Fig. 1. Map of the western...The near-linear westnorthwesterly trend of the island chain and the apparent westward decrease in age...age from the oldest and most severely eroded island of Mayotte to the younger, volcanically active Grande...the active Karthala volcano in the south of the island, or from the older La Grille volcano in the north |
 | Melluso, L., Sethna, S. F., D'Antonio, M., Javeri, P., Bennio, L. (2002) Geochemistry and petrogenesis of sodic and potassic mafic alkaline rocks in the Deccan Volcanic Province, Mumbai Area (India) Mineralogy and Petrology, 74 (2) 323-342 doi:10.1007/s007100200009 | Journal (article/letter/editorial) |
| Olivine (Fo88±84) has inclusions of Cr-bearing spinel (Cr2O3 16.3 wt%), and is often altered to calcite...wt%), diopside-salite (Mg# from 0.83 to 0.79) and spinel (Cr2O3 from 31.8 to 0.4 wt%). Clinopyroxene is...from 0.77 to 0.75; TiO2 from 2.03 to 3.40 wt%). Spinel (Cr2O3 from 42.9 to 0.1 wt%) and slightly Si-rich...lamprophyres (Ba=Nb 6.2±7.5) is typical of average ocean island basalts (cf. Sun and McDonough, 1989), whereas...the lamprophyres of the Mumbai area. The Trombay island dyke reported by Mahoney et al. (1985) has (87Sr=86Sr)65 |
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| 0022-3530/94 $3.00 Geochemistry of Heard Island (Southern Indian Ocean): Characterization of an Enriched...accepted 4 October 1993) ABSTRACT Lavas from Heard Island, located on the Kerguelen Plateau in the southern...isotopic compositions yet observed on a single oceanic island. Isotopic compositions are well correlated and...first is at the low- 87 Sr/ 86 Sr end of the Heard Island data airay, represented most closely by lavas from...contribution of < 4 wt.% for all but one Heard Island sample. However, if the Kerguelen Plateau is a |
 | Cousens, Brian L., Allan, James F., Leybourne, Matthew I., Chase, R. L., Van Wagoner, Nancy (1995) Mixing of magmas from enriched and depleted mantle sources in the northeast Pacific: West Valley segment, Juan de Fuca Ridge. Contributions to Mineralogy and Petrology, 120 (3) 337-357 doi:10.1007/bf00306512 | Journal (article/letter/editorial) |
| Total Cr=~ Fe3+:~ Mg+~ Melt Mg4~ Glass M g ~ Cr-spinel Analysis 45.96 33.78 0.38 0.23 17.79 1.56 0.02...403 0.126 0.556 0.560 0.562 C16-3 GR an olivine-spinel Mg-Fe 2+ exchange K a of 0.3. [Mg@ M g / ( M g...procedures are given in Allan et al. (1993). For Cr-spinel, analyses show Fe203 and FeO calculated from stoichiometry...represents the equlibrium melt predicted from Cr-spinel composition by the algorithm of Allan (1992), assuming...euhedral Crspinel inclusions up to 70 Ixm in size; Cr-spinel is also found as loose, euhedral crystals in the |
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| ......................................... B. Mauritius. . . . . . . . ... . . . . . ........ . . . ............................................. D. Rodrigues .................................................................................... IX. Heard Island ................................................................................. XI. Christmas Island .................................................Ocean is bounded by Australia and by the Indonesian Island Arc, which extends from Burma to the northwestern |
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| IAWE ~ I I 20 ~ 45' I i Fig. 1. Map of the island of Lanai (after Stearns 1940) showing locations...lavas (e.g., zeolite, clay minerals, calcite). The island of Lanai, which rises to a maximum elevation of...volcanic activity on the southern portion of the island and along the northwest rift zone (Stearns 1940)...These results refute the contention that ocean island basalts (OIB) and M O R B possess constant Ce/Pb...Wawaeku section, located on the windward side of the island where rainfall is somewhat higher than at the other |
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| to 1.42). This feature is not observed in modern island-arc tholeiites or MORB, but characterizes some...relatively low abundances in Y, compared to modern island-arc calc-alkaline rocks, suggest the presence of...garnet lherzolite (from Bodinier et al., 1989) and a spinel iherzolite (from Viereck et al. 1989). Partition...Partition coefficients for La and Yb in garnet and spinel are taken from Irving and Frey (1984), and Pearce...produced by partial melting of a LREE-depleted spinel and/or garnet lherzolite are plotted in Fig. 16 |
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| olivine; Cpx, clinopyroxene; Opx, orthopyroxene; Sp , spinel. の 初 生 マ グ マ の 部 分 溶 融 度 はK2Oの 変 化 か ら従 来考 え...concentration in the mantle beneath the Rishiri volcanic island. The degree of partial melting is also shown. ... M. (1985), Petrology and geochemistry of Rodrigues Island, Indian Ocean. Contrib. Mineral. Petrol.,...Middleton, R., Sacks, I.S. and Tera, F. (1982), 10Be in island-arc volcanoes and implications for subduction.... R.W. (1979), Magma genesis in the New Britain island arc: con straints from Nd and Sr isotopes and trace |
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| 4.3.2 The continents 4.3.3 Mountain chains and island arcs The prediction of volcanic eruptions Geothermal...are distributed between the continental rises, island arcs and trench structures, volcanic and other...Such trenches occur in association with off-shore island arc structures round the north and western margins...Trenches are also associated with the South Sandwich Island arc, the Caribbean arc and the Banda arc. The Philippine...Paul’s Rock, Ascension Island, Tristan da Cunha and Gough Island. At Bouvet Island the system turns east |
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| complex of ocean-derived rock suites dominated by island arcs, ophiolites, and sediments derived from these...compare more closely to hot spot related ocean island tholeiites than to MORBs. A detailed systematic...Petrol. 21,629-650. Duncan, R.A. (1982). A captured island chain in the coast range of Oregon and Washington...much like the sources of many intraplate oceanic island basalts. Low Ti0zIP20S' on the other hand is a...Mtn; 25. Basin City; 26. Martindale; 27. Goose Island; 28. Lower Monwnental; 29. Steens Mtn; 30. High-AI |
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| subfiles E and N. See symposia. Ada County Adak Island In central part of Aleutian SW of Alaska Peninsula...Australia Australia SA geosynclines Adelaide Island Off W coast of Antarctic Peninsula S of Cape Horn...Islands aegerine use aegirine Aegina Town and island in Saronic Gulf. BT Sterea Ellas Greece aegirine...waste disposal Agto Fishing settlement on small island in Davis Strait. BT Greenland Arctic region SA...BT Gulf of Mexico Alae Crater Kilauea volcano on island of Hawaii. BT Hawaii United States SA Kilauea |
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| U.S. BA United States NA Columbia Kentucky Adak Island In central part of Aleutian Islands SW of Alaska...Australia SA geosynclines SA Stuart Shelf Adelaide Island Off W coast of Antarctic Peninsula S of Cape Horn...Islands aegerine use aegirine Aegina Town and island in Saronic Gulf. BT Sterea Ellas BT Greece aegirine...international cooperation Agto Fishing settlement on small island in Davis Strait. BT Greenland BT Arctic region...Gulf of Mexico Alae Crater On Kilauea Volcano on island of Hawaii. Autoposting of broader terms to this |
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| Ireland Tourist Board) Figure 1.2 Fingal's Cave, Island of Staffa, west of Mull, Scotland. (Paul Pepper...responsible for the Murchison earth¬ quake of 1929, South Island, New Zealand. The uplifted block rose about 5 metres...the generation of igneous activity; a volcanic island arc is formed. On the other hand if one of the...Characteristic examples NESOSILICATES or Island Silicates (Gr. nesos, an island) Separate Si04 tetrahedra, held...are along mid-ocean ridges (e.g. Iceland) and in island arcs (e.g. Japan) (Figure 13.13). These are the |
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| Ontario Oregon Prince Edward Island Puerto Rico Pennsylvania Queensland Rhode Island South Australia South Carolina...(Mich.) Alcorn County (Miss.) Alcyonaria Aldabra Island (Seychelles) Aldehydes aromatic chemistry chemical...59 T2—492 352 Amsterdam (Netherlands) Amsterdam Island 969.9 T2—699 Amto-Musan languages T6—991 2 Amulets...Russian history 947.085 Andros Island (Bahamas) T2—729 6 Andros Island (Greece) T2—495 85 Androscoggin...Anticonvulsants pharmacokinetics 615.784 Anticosti Island (Quebec) T2—714 178 2 Anticyclones (Meteorology) |
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| Conn. D.C. Connecticut Or. Oregon Prince Edward Island Del. Dept. Delaware Department Pa. Puerto...New Jersey New Mexico P.E.I. P.R. Aust U.K. Island Wash. West Virginia Washington Wis. Wisconsin...engineering Acipenseriformes paleozoology Acklins Island 621.254 Acoli (African people) Acoli language...939.7 968 967 T2-67 Africa, West : Agalega Island Agapes (Christian 966 T2-66 African languages...Albokas see also Woodwind Alcyonaria Aldabra Island (Seychelles) Aldehydes 616.55 aromatic chemistry |
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| language Tlingit language Na Guardis Island (Spain) USE Guardia Island (Spain) Na-hsi (Chinese people) USE...(Stratigraphy)—Namibia Nama Island (Micronesia) (Not Subd Geog) UF D’Urville Island (Micronesia) Namo Island (Micronesia)...(Micronesia) Nema Island (Micronesia) San Rafael Island (Micronesia) Urville Island (Micronesia) BT Islands—Micronesia...people) BT Ethnology—Ghana Namo Island (Micronesia) USE Nama Island (Micronesia) Namoi River (N.S.W.)...Atoll (Marshall Islands) USE Namur Island (Marshall Islands) Namur Island (Marshall Islands) UF Namu Atoll |
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| internal interior decoration international Ireland island(s) jurisdiction(s) Kansas Kentucky Louisiana language...paleozoology Parish pathological, pathology Prince Edward Island performance personnel persons [Table 7] pharmacological...ethnic, national groups [Table 5] reservoir Rhode Island Russian Soviet Federated Socialist Republic Abbreviations...husbandry other aspects see Cattle area—423 43 island Alders see Fagales Aldershot Hampshire Eng. area—422...Crippled people Amsterdam city Netherlands area-492 3 island area-699 Amulets Islamic practice 297.33 numismatics |
