 | | 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...(1-9 ~ TiO2),perovskite, spinel (ulv6 spinel-magnetite series) and accessory nepheline, melanite, and...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 (issue) | | Reconnaissance of Parts of the Central Islands of the British Solomon Islands. Protectorate. By The Department...British Territories in Borneo • • British Solomon Islands Protectorate • • • • • • • NOTES • ...Selefer, San Jorge. fig. 4 Micro-syeno-diorite, Island Point, Buena Vista . . . . . . . Plate IV Photomicrographs...Plate V Photomicrographs Vista . fig. I Albitised Island fig. 2 Albitised fig. 3 Albitised fig. 4 Albitised...Rongovali, San Jorge basalt, Buena Vista . . . basalt, Island Point, Buena Vista . and chloritised dolerite, |  | | Journal (article/letter/editorial) | | unmetasomatized source for the Malaitan alniiite (Solomon Islands): Petrogenesis involving zone refining, megacryst...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...ROSENBUSCH (1887) for a suite of dike rocks found on the island of Alnii, off the coast of Sweden. ROCK (1986)...oceanic crust. The island of Malaita is geologically distinct from other islands in the Solomons chain |  | 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...(plagioclase–clinopyroxene–magnetite ± amphibole ± olivine) and trachytes (plagioclase–amphibole–magnetite ± biotite)...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 |  | | Journal (article/letter/editorial) | | from that of the wustite-magnetite buf fer to that of the fayalite-magnetite-quartz buffer. Runs 5-15...(South Africa); 2) Hanaus I and Laurencia (Gibeon province, Namibia); 3) Late Cretaceous geo therm for Frank...Smith pipe; 4) Late Cretaceous geotherm for Gibeon province; 5 and 6) ClarkRingwood shield geotherms for 37...explains the absence of diamonds in the Gibeon province, where the kimberlites are considered to be due...pipe 400 km to the west of the Northern Lesotho province, which dif fers from nearby pipes in the Kimberley |  | Liu, Fei, Yang, Jing-sui, Dilek, Yildirim, Xu, Zhi-qin, Xu, Xiang-zhen, Liang, Feng-hua, Chen, Song-yong, Lian, Dong-yang (2015) Geochronology and geochemistry of basaltic lavas in the Dongbo and Purang ophiolites of the Yarlung-Zangbo Suture zone: Plume-influenced continental margin-type oceanic lithosphere in southern Tibet. Gondwana Research, 27 (2) 701-718 doi:10.1016/j.gr.2014.08.002 | Journal (article/letter/editorial) | | involving the accretion of ancient oceanic lithosphere, island arc systems and microcontinents along the margins...the northern part of Malaita (Ontong-Java ocean plateau) in the Solomon Islands (Phinney et al., 2004);...late Cretaceous, fossil seamount sequence on the island of Crete-Greece (Palamakumbura et al., 2013), of...1995), and of the Malaita Island of the OntongJava ocean plateau near the Solomon arc in the SW Pacific...of the Malaita Island, characterized by an early Cretaceous basaltic basement sequence (Malaita Volcanic |  | | Report (issue) | | SOLOMON ISLANDS PAPUA NEW GUINEA Guadalcana11lill Island Santa Isabel Island Russe/ Islands Florida...Florida Islands Malaita Island Tangarare Guadalcanal /slant! Queensland AUSTRALIA San CristobalIsland...OVERSEAS MEMOIR 6 The geology of Guadalcanal, Solomon Islands B. D. Hackman London Her Majesty's Stationery...ARCS Ministry ofNatural Resources, Honiara, Solomon Islands and Institute ofGeological Sciences, London...B. D. - 1980. The geology of Guadalcanal, Solomon Islands. Overseas Mem. Inst. Geol. Sci., No. 6. ISBN |  | | Report (volume) | | M. G. The geology of north and central Malaita, Solomon Islands: the thickest and most accessible part...CHAZEY, W. J., Ill & NEAL, C. R. Large igneous province magma petrogenesis from source to surface: platinum-group...it has been uplifted through collision with the Solomon arc. mantle. The nature and origin of this compositional...Tremolada 2004). Collision of the OJP with the old Solomon arc has resulted in uplift of the OJP's southern...of basaltic basement in the Solomon Islands (Fig. 1), notably in Malaita, Santa Isabel and San Cristobal |  | | Journal (article/letter/editorial) | | secondary assemblage of orthopyroxene, clinopyroxene, magnetite, plagioclase, and glass. E and F. Samples VBS-1...other alkaline rocks, such as alnoites from Malaita Island, South Pacific (Nixon and Boyd, 1979) or minettes...intergrowth, with the ilmenite matrix containing Ti-magnetite lamella, similarly to discrete ilmenite megacrysts...and Ashchepkov, 1996). Orientation of the Ti-magnetite lamellae invariably coincides with orientation...979 secondary clinopyroxene, orthopyroxene, Ti-magnetite, plagioclase, and glass (Figs. 1C–1F). Downloaded |  | | 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...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...in oceanic intraplate settings, such as oceanic islands or volcanic plateaus? Have lavas from more than |  | | Journal (article/letter/editorial) | | enriched it in Fe and formed minor amounts of magnetite. The PGE, which are present mainly as laurite...distribution. Arrows point at small overgrowth of magnetite on chromite. 305 306 G. Grieco et al. / Ore...map). The chromite grain shows an overgrowth of magnetite and depletion in Al on the right border. Depletion...Orthopyroxene Clinopyroxene Amphibole Phlogopite Magnetite 61.8 21.8 13.2 3.2 0.0 0.0 0.0 74.0 27.4 3.2...of Cr/(Cr + Al) in spinels in xenoliths from Malaita Island, New Caledonia, reflected leaching of Al by |  | | 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 (issue) | | • • Federation of Nigeria • • • • • • Windward Islands • • • 391 407 416 429 • • • 442 • • •...• • Occurrence of Helium-bearing Gases in Lake Province, Tanganyika Platinum Metals Review . . . Sedimentological...Text-fig. . . facing p. 430 . 430 . . 431 Brother Islands . . . . . . ,, 434 figs. 1 & 2 Photomicrographs...Map of the Brother Islands . page 430 • • Geological Sketch Map of West Brother Island 432 .,' Geological...Sketch Map of East Brother Island 435 • Geological Sketch Map of Reef Island . 437 • • fig. l Reef fig |  | | Report (issue) | | ............ The Columbia River Flood Basalt Province: Current Peter R. Hooper ix Status ........... 183 The Paran•-Etendeka David W. Peate Province ...............................................of Texasat The Columbia River Flood Basalt Province: Current Status Peter R. Hooper Departmentof...northeast 2 COLUMBIA RIVER FLOOD BASALT PROVINCE (Figure 1). Basalt flows dip gently west (<2ø)...basaltprovince,makesthe CRBG Columbia River basalt province (southernmargin of the importantin the developmentand |  | | Journal (issue) | | First Geological Map of Santa Ysabel, British Solomon Islands Protectorate. By R. L. Stanton, M.Sc., Ph.D.... . . . . . . 127 The Geology of Mf"\vanganu Island, Whitworth, M.A., D.Phil. (Oxon.) Western . ...facing p. 148 • • • • • The Geologyof Mfwanganu Island, Western Kenya . Plate I 1. 2. 3. Fig. I...I Fig. 2 Fig. 3 Fig. 4 Fig. 5 Mfwanganu Island, showing the northward-facing dip-slope and the steep.... . . Sketch map of Mfwanganu Island and neighbouring small islands, Lake Victoria . . . . Geological |  | | Report (issue) | | the Wessels Mine near Hotazel in northern Cape Province, South Africa. Dan Carlson specimen; Jeff Scovil...villages of Soghan and Bagha Borsch in Kerman Province, 6 Iran. The cat's-eye is caused by oriented...Mountain in the High Atlas Mountains, Khenifra Province, Meknes-Tajilalet Region, Morocco; the large,...Other occurrences include Iivaara, Finland; Alno Island, Sweden; and Ardnamurchan, Scotland. 8 Goldmanite...include Cambrian black shales in China and a magnetite skarn in Tashelginskaya, Russia. A manganese-rich |  | | 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 |  | | 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) ......................... |  | | Report (chapter) | | the south, with the Clew Bay Complex in Achill Island and in the Ox Mountains. In Connemara, a Dalradian...along the southern shores of Clew Bay, on Clare Island and in the southern Ox Mountains, and a disrupted...partly correlative Ballytoohy 'Series' on Clare Island (Phillips 1973) has an oceanic affinity with cherts...Killadangan turbidites from a transitional continental province untouched by vulcanism is supported by wholerock...the Betts Cove (Bedard et al. 1998) and Bay of Islands Complex (Fig. 17, items 10-15), were still developing |  | | Book (volume) | | (Sturnus vulgaris) live year-round on the Shetland Islands at 60°N, while at the same latitude in Russia (and...greater sea areas and larger numbers of scattered island breeding sites, pelagic seabirds breed much more...between Alaska and Hawaii and other central Pacific Islands (5000-6000 km). To judge from their normal flight...opposing winds, mist or rain, or reach coastlines or islands. The observer equipped only with binoculars might...return unerringly to their own particular nesting islands. Great Shearwaters (Puffinus gravis), for example |  | | Journal (issue) | | suitable for local use. SOILS FROM THE BRITISH SOLOMON ISLANDS PROTECTORATE FouR samples of soil received...Lever, . Government Entomologist, British Solomon Islands, have recently been examined at the Imperial...appears to be available regarding the soils of these islands, an account of the results obtained may be of interest...interest. The samples had been taken on Malaita Island from a block yielding very poor crops of coconuts...size of the samP SOILS FROM THE BRITISH SOLOMON ISLANDS 499 ~ 11ailabl, Portion (i.,. P<>rlion Sol'Ubl |  | | Report (volume) | | little animal is apparently longicaudata of the Aru Islands, described in 1866 by Schlegel and Miiller. 1 That...1935, Amer. Mus. Novit., No. 820, p. 1.-Cboiseul Island. DIAGNOSis.-AnuLT.-Upper parts brown, upper be...RANGE.-Solomon Islands (Choiseul, Arnavon, Ysabel, Vella Lavella, New Georgia, Kicha, Malaita, Guadalcanar... 364, p. 1). Soon after I had entered the Solomon Islands in 1929 with the Whitney South Sea Expedition...Choiseul Island. Dr. Hartert wrote me that there was no brown eagle known from the Solomon Islands and that |  | | Book (volume) | | droppings and often contribute significant resources to island ecosystems (Anderson & Polis 1999). Woodpeckers...and may facilitate plant colonization of oceanic islands (Nogales (336) Fish Seed (1099) (594) Nectar ...significantly increase the species richness of island floras (Price & Wagner 2004). Indeed, even species...was higher (Wenny 2000). On the Barro Colorado island of Panama, Black-mandibled Toucans (Ramphastos...disappeared from some areas, particularly many islands in the Pacific (Pimm er al. 1995; McConkey & Drake |
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