2003
DOI: 10.1016/j.chemgeo.2003.08.002
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Isotope and trace element variations in lavas from Raivavae and Rapa, Cook–Austral islands: constraints on the nature of HIMU- and EM-mantle and the origin of mid-plate volcanism in French Polynesia

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Cited by 112 publications
(73 citation statements)
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“…The HIMU lavas in the Cook-Austral Islands show higher 187 Os/ 188 Os than bulk silicate Earth and MORB (Hauri and Hart, 1993;Reisberg et al, 1993;Schiano et al, 2001;Lassiter et al, 2003;Hanyu et al, 2011a), consistent with the involvement of the recycled oceanic crust in the HIMU reservoir (Fig. 11).…”
Section: Origin Of the Himu Reservoirsupporting
confidence: 55%
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“…The HIMU lavas in the Cook-Austral Islands show higher 187 Os/ 188 Os than bulk silicate Earth and MORB (Hauri and Hart, 1993;Reisberg et al, 1993;Schiano et al, 2001;Lassiter et al, 2003;Hanyu et al, 2011a), consistent with the involvement of the recycled oceanic crust in the HIMU reservoir (Fig. 11).…”
Section: Origin Of the Himu Reservoirsupporting
confidence: 55%
“…Indeed, Os isotopic composition is susceptible to crustal assimilation, but the relatively low 187 Os/ 188 Os characteristics of EM2 are confirmed by Os isotope measurements of olivine phenocrysts in Samoan lavas (Jackson and Shirey, 2011 Parai et al (2009) and Hanyu et al (2011b) Eiler et al (1995Eiler et al ( , 1997 Nishio et al (2005), Vlastélic et al (2009), andChan et al (2009) (Hanyu et al, 2011a;Jackson and Shirey, 2011 Hanyu et al (2011a). Data sources are Hauri and Hart (1993), Reisberg et al (1993), Roy-Barman and Allègre (1995), Schiano et al (2001), Lassiter et al (2003), and Hanyu et al (2011a …”
Section: Origin Of the Em1 And Em2 Mantle Reservoirsmentioning
confidence: 97%
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“…[25] HIMU basalts are characterized by unusually low K/U ratios [Lassiter et al, 2003]. The low K/U ratios observed in some ocean island basalts (in particular HIMU basalts) have commonly been ascribed either to K-loss caused by post-eruption weathering or by the presence of a K-bearing phase such as amphibole or phlogopite during low-degree melting, which would result in partial melts with K/U ratios lower than their source [Sun and McDonough, 1989].…”
Section: Evidence For a Low-k/u Reservoir(s) In The Mantlementioning
confidence: 99%
“…The Polynesian islands chains show examples of all these types of source signatures (3,(6)(7)(8)(9) (11), which constitute the most recent volcanism of the Pitcairn-Gambier chain, located on the southeast side of the Polynesian Superplume (Fig. 1).…”
mentioning
confidence: 99%