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Upolu Island

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Pb isotope plot of basalts from throughout the eastern volcanic province of...
Published: 01 June 2008
basalts from Ta'u, Ofu, and Olosega Islands. Malumalu Volcano (blue triangles) is a young submarine volcano anchoring the eastern end of the 90 km submarine lineament running SE from Tutuila Island. Subaerial basalts from the eastern and western shields of Upolu Island are shown as purple circles
Journal Article
Published: 10 February 2010
Geological Magazine (2010) 147 (5): 705–717.
... ago (McDougall, 1985 ). Further to the WNW lie the very much larger volcanic islands of Upolu and Savai'i, displaying relatively youthful volcanism in part covering older volcanics on Upolu (Friedländer, 1910 ; Thomson, 1921 ; Stearns, 1944 ; Kear & Wood, 1959 ), and the landscape of Savai'i...
Series: Geological Society, London, Engineering Geology Special Publications, Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2016
DOI: 10.1144/EGSP27.15
EISBN: 9781862399723
... Abstract Afulilo Dam was built as part of a hydroelectric scheme to augment the power supply for the island of Upolu, Samoa. The 23 m high concrete gravity dam sits on the crest of a waterfall that once drained an intermontane basin. Initially, concerns were expressed about a possible active...
FIGURES | View All (10)
Journal Article
Journal: Geology
Published: 01 June 2008
Geology (2008) 36 (6): 435–438.
... basalts from Ta'u, Ofu, and Olosega Islands. Malumalu Volcano (blue triangles) is a young submarine volcano anchoring the eastern end of the 90 km submarine lineament running SE from Tutuila Island. Subaerial basalts from the eastern and western shields of Upolu Island are shown as purple circles...
FIGURES | View All (4)
Journal Article
Journal: GSA Bulletin
Published: 01 November 1944
GSA Bulletin (1944) 55 (11): 1279–1332.
... that the fringing reefs of Tutuila are chiefly bedded calcareous sand and silt and not coral colonies. Upolu is a deeply eroded mass of Pliocene lavas surrounded by a drowned barrier reef and partly buried by late Pleistocene and Recent lavas. Upolu was submerged so rapidly in late Pleistocene time that only narrow...
Journal Article
Journal: GSA Bulletin
Published: 01 November 1944
GSA Bulletin (1944) 55 (11): 1333–1362.
...GORDON A. MACDONALD Abstract Tutuila Islands consists of five overlapping shield volcanoes. The lavas of all are predominantly olivine basalts, but picritic basalts, olivine-poor basalts, and olivine-free basalts also are present. Two flows of oligoclase andesite are found in the easternmost...
Journal Article
Published: 01 July 2010
Seismological Research Letters (2010) 81 (4): 577–591.
... the island of Tutuila (142 km 2 ; capital: Pago Pago), and the islets of Ofu, Olosega, Ta'u, Rose, and Swains, and the independent country of Samoa (formerly Western Samoa), comprised of the islands of Upolu (1,125 km 2 ; capital: Apia), Savai'i (1,708 km 2 ), and a few islets including Manono. The island...
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Journal Article
Published: 01 December 1963
Bulletin of the Seismological Society of America (1963) 53 (6): 1211–1227.
... between 168o08 'and 172°50'W longitude and 14°33 ' and 13°20'S latitude, about 1,500 miles north-northeast of New Zealand and 500 miles east of Fiji. The three main islands in the archipelago are those of Savai'i and Upolu, Western Samoa, and Tutuila, American Samoa. In general, the individual island...
Journal Article
Journal: GSA Bulletin
Published: 01 September 1972
GSA Bulletin (1972) 83 (9): 2709–2714.
...C. E HEDGE; Z. F PETERMAN; W. R DICKINSON Abstract Thirteen samples of basaltic rock from the islands of Upolu and Savai'i, Western Samoa, were analyzed for major element composition, for the minor elements Rb, Sr, and Ni, and for strontium isotopic composition. Ten high-potassium alkali basalts...
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1975
AAPG Bulletin (1975) 59 (5): 780–798.
... islands (Savaii, Upolu, Tutuila, and the Manua group), several offshore tuff-cone islets, and an isolated atoll (Rose Atoll). Another island, now a seamount 60 km northeast of Tutuila with a flat 2.5 km-wide summit at a depth of 60 m, was submerged by the Flandrian transgression, and there are many other...
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Journal Article
Published: 01 October 1950
Bulletin of the Seismological Society of America (1950) 40 (4): 323–331.
... . . . . . . . . . . . . . . 64, 161 Andaman Sea 59 Bhutan, India 316 Apla, Upolu Island, Samoa 317 Big Bear Lake, California 316, 318 Arabian Sea 150 Bishop, California 151,152 Arboleda, Colombia 311 Bismarck Sea 61, 66, 155 (2), 308 An'buckle, California 72 Blue Lake, California 306 Argentina . . . . . . . . . . . 73, 74, 154...
Journal Article
Journal: Geology
Published: 01 July 2008
Geology (2008) 36 (7): 551–554.
... in olivines from oceanic basalts (cf. Eiler, 2001 ). 7 11 2007 1 4 2008 4 4 2008 © 2008 Geological Society of America 2008 oxygen isotopes Samoa enriched mantle EM2 ocean island basalts The Samoan hotspot chain, located in the central South Pacific Ocean basin...
FIGURES
Journal Article
Published: 01 November 1991
Quarterly Journal of Engineering Geology and Hydrogeology (1991) 24 (4): 389–398.
...H. J. Gudge; A. B. Hawkins Abstract The geologically young Samoan Islands are situated in a seismically active area in the Pacific Ocean, at the northern end of the Kermadec-Tonga Trench. The paper discusses two faults not shown on the 1: 100 000 geological maps of the area. One of the faults...
Journal Article
Published: 01 March 2004
Seismological Research Letters (2004) 75 (2): 188–198.
... the benefit of ground truth. Should the latter become available in the future, it could provide an evaluation of the accuracy of our results, notably with regard to location. Further systematic corrections were applied to records obtained on high islands, to offset the effect of postconversion...
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Journal Article
Published: 01 October 1951
Bulletin of the Seismological Society of America (1951) 41 (4): 405–413.
..., Leeward Islands. : . . . . . . . . . 172 Adana, Turkey 247 Antofagasta Province, Chile 78 Adriatic Sea 253 Aoga Shima (Island) 395 Afghanistan 173 Apia, Upolu Island, Samoa 304 Agrihan Island, Marianas Islands 252 Arctic Ocean 173, 249 Alameda County, California 397 Arequipa Province, Peru 394 Alaska...
Journal Article
Published: 01 October 1950
Bulletin of the Seismological Society of America (1950) 40 (4): 305–319.
..., 172° W, and depth of focus about 150 km. This location is north of Apia, Upolu Island, Samoa. South Pacific Ocean, south of the Fiji Islands, August 17, 1950The Survey reports an earthquake at 162 15m 22 S, G.C.T., with provisional epicenter 21° S, 180° E, and depth about 600 km. Pasadena estimated...
Journal Article
Published: 01 July 1955
Bulletin of the Seismological Society of America (1955) 45 (3): 245–259.
... reports an e a r t h q u a k e at 11 h 16~ 12 ~, G.C.T., with preliminary epicenter 141//2° S, 174° W, which is in the Pacific Ocean west of Upolu Island, Samoa Islands. 250 BULLETINOF THE SEISMOLOGICALSOCIETYOIPAMERICA Fox Islands, Aleutian Islands, March 16, 1955The Survey reports an earth- quake at 02...
Journal Article
Published: 01 April 2003
Bulletin of the Seismological Society of America (2003) 93 (2): 804–816.
... stations,” later mandated by the CTBT ( Okal, 2001 ). In the absence of Station RKT (Gambier Islands), temporarily shut down for maintenance and upgrade during the Spring of 2000, records were obtained from three main sites in Polynesia: PMO in the Tuamotu Islands, PPT in the Society Islands, and TBI...
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Journal Article
Published: 01 August 1977
Bulletin of the Seismological Society of America (1977) 67 (4): 1225–1238.
... depth 33 kln constrained (GS). Minor damage (VI) on the island of Upolu, Western Samoa. Local tsunami (75 cm) at Pago, Pago, (15 era) at Apia, and (8 cm) at Suva (Apia and NOAA, National Weather Service). Magnitude 7.3 (PAS Ms), 7.6 (BRK Ms), 6.4 (GS rob), 7.8 (GS Ms). FranCe. December 28, 1975 02h16m07...
Journal Article
Published: 01 October 2015
Geochemical Perspectives (2015) 4 (2): 167–184.
... and the concentrations of those elements in lavas of the respective island arc. Return of oceanic crust to the mantle through subduction was explicitly part of plate tectonic theory (Isacks et al. , 1968; Le Pichon, 1968), but it took longer for the idea that sediment, and therefore indirectly continental crust...
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