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Upolu

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Journal Article
Published: 01 November 1991
Quarterly Journal of Engineering Geology and Hydrogeology (1991) 24 (4): 389–398.
... in Upolu, Western Samoa, 3rd International Conference on Small Hydro, Mexico, International Water Power & Dam Construction, Surrey, 119–140. Gudge, H. J. & Hawkins, A. B. 1990. Afiamalu pump assisted hydropower project, Western Samoa. Proceedings of Institution of Civil Engineers...
Image
—Echograms, on same scale, across bajada north of <span class="search-highlight">Upolu</span> and north of Tutuil...
Published: 01 May 1975
Fig. 7. —Echograms, on same scale, across bajada north of Upolu and north of Tutuila. A few troughs between large hummocks ( e.g ., third from left) are flat floored. See Figure 5 for location.
Journal Article
Published: 10 February 2010
Geological Magazine (2010) 147 (5): 705–717.
... youthful ages, with most <0.4 Ma, in keeping with the geological observations. Tutuila consists of several volcanoes, and previous work yielded a mean K–Ar age of 1.26 ± 0.15 Ma for the shield-building volcanism. Upolu, to the WNW of Tutuila, gives a mean age of 2.15 ± 0.35 Ma for the shield-building...
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...
FIGURES | View All (15)
Image
▴ Dataset of flow depth  (left)  and run-up  (right)  heights surveyed on U...
Published: 01 July 2010
Figure 2E. ▴ Dataset of flow depth (left) and run-up (right) heights surveyed on Upolu.
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.
... olivine basalt, basaltic andesite, and picritic basalt with many phenocrysts of augite. Similar olivine basalts and a picritic basalt were collected on Tau. The oldest (Pliocene?) lavas of Upolu are preponderantly olivine basalt, with smaller amounts of olivine-poor basalt, picritic basalt, and basaltic...
Image
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: 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: 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: AAPG Bulletin
Published: 01 May 1975
AAPG Bulletin (1975) 59 (5): 780–798.
...Fig. 7. —Echograms, on same scale, across bajada north of Upolu and north of Tutuila. A few troughs between large hummocks ( e.g ., third from left) are flat floored. See Figure 5 for location. ...
FIGURES | View All (10)
Image
—Bathymetric profiles along tracks across area of large hummocks north of U...
Published: 01 May 1975
Fig. 8. —Bathymetric profiles along tracks across area of large hummocks north of Upolu (surface-ship broad-beam profiles) and area north of Tutuila (deep-tow narrow-beam profiles). Note 5 × difference in scale. On Figure 8b , regional contours (dashed lines) are from surface-ship surveys. See
Series: 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: 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...
Image
▴ A) Map of the regional results of the simulation using Model USGS-1. The ...
Published: 01 July 2010
). Note the focusing of the wave toward Niuatoputapu, and the general agreement of the predicted wave heights with our field surveys. B) Close-up of the simulated wavefield around Upolu. Note the predicted high amplitudes at both its southeastern tip (observed) and southwestern one (not observed).
Journal Article
Journal: Geology
Published: 01 July 2008
Geology (2008) 36 (7): 551–554.
... of MacDonald and Katsura (1964) . Four samples are picrites with Mg#s [molar percent of Mg/(Mg+Fe 2+ )] of ≥80 and MgO contents of ≥23.9 wt%. All lavas have Mg#s >55 with the exception of Upolu samples U14 and U19, which have Mg#s of 43 and 49, respectively. Olivine phenocryst abundances range from 3% to 40...
FIGURES
Journal Article
Published: 01 March 2004
Seismological Research Letters (2004) 75 (2): 188–198.
... Rangiroa RSP 17:34:16.0 66.04 −30.0 PPN Papeeno Tahiti RSP 17:37:55.5 68.95 −29.0 RKT Rikitea Gambier RSP 17:41:33.7 71.82 −22.7 AFI Afiamalu Upolu WWSSN 17:44:12.1 74.06 −38.9 RAR Rarotonga Rarotonga WWSSN 17:46:14.8 75.62 −30.3 Event 5—01 OCT 1969, Average r...
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Image
Plots showing correlations between δ 18 O of olivine phenocrysts (this stud...
Published: 01 July 2008
such as these are strong evidence that the δ 18 O values are representative of mantle sources. Error bars on δ 18 O represent 1σ standard error, except for Upolu samples, which were run only once and have error bars representing 1σ reproducibility of UWG-2 garnet standard (0.07‰). Ticks along mixing lines in panel
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
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...