 | | Journal (article/letter/editorial) | | unmetasomatized source for the Malaitan alniiite (Solomon Islands): Petrogenesis involving zone refining, megacryst... 24.5% subcalcic diopside, 27% garnet, 12.9% phlogopite, 5% bronzite, 0.5% ilmenite, and 0.1% zircon...source for mantle-derived magmas containing either phlogopite, amphibole, or both minerals (e.g., FRANZ, 1965;...compounded because GEOLOGICAL SETHNG The Solomon Islands chain delineates the boundary between the Pacific...ultrabasic rocks in streams from central north Malaita in 195 1 (RICKWOOD,1957) led to a fruitless search |  | | Journal (article/letter/editorial) | | 6 Petrogenesis of aln6itic rocks from Malaita, Solomon Islands, Melanesia PETER H. NIXON Geology Department... Aphanitic and fragmental aln6itic rocks from Malaita contain ultrabasic xenoliths and discrete nodules...natro-melilite (i/3 melilite-2/3 gtkermanite),phlogopite (1-9 ~ TiO2),perovskite, spinel (ulv6 spinel-magnetite...similar to that found in kimberlites, the host Malaita rocks are mineralogically and geochemicallydifferent...kimberlite. AN aln6ite intrusion from Malaita Island, in the Solomon Islands, described by Allen and Deans 0965) |  | | Journal (article/letter/editorial) | | spectroscopic study of a garnetite xenolith from Malaita, Southwest Pacific Rei SHIRAISHI and Eiji OHTANI...Japan A garnetite xenolith, KC−99−M5, from Malaita Island reported to contain minerals from the mantle...garnetite xenoliths discovered on the island of Malaita, Solomon Islands in the Southwest Pacific may contain...megacryst suite pyroxene−ilmenite xenoliths from Malaita, and showed that they were formed by exsolution...observation may suggest that the granitite xenoliths of Malaita may also have a similar deep origin to that of |  | Smith, D. J., Petterson, M. G., Saunders, A. D., Millar, I. L., Jenkin, G. R. T., Toba, T., Naden, J., Cook, J. M. (2009) The petrogenesis of sodic island arc magmas at Savo volcano, Solomon Islands. Contributions to Mineralogy and Petrology, 158 (6) 785-801 doi:10.1007/s00410-009-0410-9 | Journal (article/letter/editorial) | | The petrogenesis of sodic island arc magmas at Savo volcano, Solomon Islands D. J. Smith Æ M. G. Petterson...2009 Ó Springer-Verlag 2009 Abstract Savo, Solomon Islands, is a historically active volcano dominated...Energy Water and Mineral Resources, Honiara, Solomon Islands ascend periodically, where they are subject...agent. Keywords Sodic Island arc Trachyte Mugearite Alkaline Solomon Islands Savo Hot zone ... Introduction The Solomon Islands arc has experienced a complex subduction history, involving the collision |  | | Journal (article/letter/editorial) | | producing chromitite – dunite bodies in the unusual phlogopite peridotite of the Finero Complex in Permian to...and pervasive K-metasomatism that crystallized phlogopite and was associated with the intrusion of clinopyroxenite...(Coltorti and Siena, 1984) from core to rim: 1. Phlogopite peridotite—amphibole and phlogopitebearing harzburgite...layers. The occurrence of chromitite in the Finero phlogopite peridotite was described by Roggiani (1948),...massive chromitites and (c) chromite in chromite + phlogopite symplectites. As with nearly all such occurrences |  | | Journal (article/letter/editorial) | | other alkaline rocks, such as alnoites from Malaita Island, South Pacific (Nixon and Boyd, 1979) or minettes...in turn is partially replaced by metasomatic phlogopite. Textural relationships between ilmenite and...Vitim field (Fig. 4B), Yakutian kimberlites, and Malaita alnoites (Nixon and Boyd, 1979), which were considered...(Schulze, 1987) and for clinopyroxenes from the Malaita alnoites (Fig. 5D) (Nixon and Boyd, 1979). Secondary...3Metasomatic phlogopite from Ilm-Cpx-Gt symplectite, Mir pipe, this study. 4Metasomatic phlogopite from Ilm-Cpx-Gt |  | | Journal (article/letter/editorial) | | resembling those of shoshonitic lavas in modem island arcs. Other examples of Archean alkaline rocks...those of modem oceanic islands have not been reported. The oldest oceanic island suites are found in the...sill-like intrusions containing essentially biotite/phlogopite or amphibole, and clinopyroxene and olivine with...subduction processes (the shoshonitic association of island and continental arcs). Modem alkaline rocks associated...lavas? Are they best compared with lavas erupted in island or continental arcs, with lavas associated with |  | | Journal (volume) | | Reconnaissance of Parts of the Central Islands of the British Solomon Islands Protectorate. By The Department...Honduras Jamaica Leeward Islands Windward Islands Fiji British Solomon Islands Protectorate 53 , 183,...Prospects for Mining Development in the British Solomon Islands Tanganyika Mining Industry in 1955 Perlite...Guiana Occurrence of Helium- bearing Gases in Lake Province, Tanganyika 85 85 86 87 88 89 90 91 91 210 211...Geological Reconnaissance Survey of British Solomon Islands Coloured Geological Sketch Map of Santa Ysabel |  | | Journal (article/letter/editorial) | | Similarly, hydrous minerals such as amphibole and phlogopite, which can be found occasionally in mantle-derived...peridotite xenoliths in the back-arc region of Japan Islands. Abstract T33G2750 presented at 2012 Fall Meeting...Ichinomegata, Japan Malaita Island, Malaita Island Malaita Island Malaita Island, OJ Plateau Lihir, Papua |  | | Book (edition) | | .... 396 II.3. Sumatra - Offshore Forearc and islands............................................................. 496 II.4. Sunda Shelf (incl. 'Tin islands', Singkep, Karimata) ....................................... 1338 VII. BANDA SEA, LESSER SUNDA ISLANDS..................................................2140 IX.11. Papua New Guinea (East New Guinea main island) ................................................. 2210 IX.12. Papua New Guinea (Bismarck Sea, Solomon Sea, Woodlark Basin) ......................... |  | | Journal (issue) | | (Malawi Province) which impinges upon the subordinate Irumide and Ubendian belts. The Malawi Province has...carbonatites and related rocks of the Chilwa Alkaline Province and the petrological rock-types of the Basement...appear to underlie a large part of the Barotse Province in the west, though there they are for the most...In the areas east of Lusaka and in the Eastern Province granite-gneisses are widespread and are in part...below). The older Precambrian rocks of the Southern Province are mainly granite gneisses, but schists are |
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