Peridotite

Honma et al. (1991) have shown that the Okinawa Trough basalts have significantly high K, Rb and Sr contents and D/H, 0/ 0 and Sr/ Sr ratios than N-Morb have and these are due to generation of magma from normal-type mantle peridotite modified by component from the subducted slab and crustal contamination. [Pg.333]

Hajash, A. and Chandler, G.W. (1981) An experimental investigation of high-temperature interactions between seawater and rhyolite, andesite, basalt and peridotite. Contrib. Mineral. Petrol., 78, 240-254. [Pg.427]

Attree RW, Cabell MJ, Cushing RL, Pieroni JJ (1962) A calorimetric determination of the half-life of thorium-230 and a consequent revision to its neutron capture cross section. Can J Phys 40 194-201 Bateman H (1910) Solution of a system of differential equations occurring in the theory of radioactive transformations. Proc Cambridge Phil Soc 15 423-427 Beattie PD (1993) The generation of uranium series disequilibria by partial melting of spinel peridotite ... [Pg.19]

Beattie P (1993a) The generation of uraiuum series disequilibria by partial melting of spinel peridotite Constraints from partitioiung studies. Earth Planet Sci Lett 117 379-391... [Pg.119]

Beattie P (1993b) Uranium-thorium disequihbria and partitioning on melting of garnet peridotite. Nature 363 63-65... [Pg.119]

Falloon TJ, Green DH (1987) Anhydrous partial melting of MORE pyrolite and other peridotite compositions at 10 kbar implications for the origin of primitive MORE glasses. Mineral Petrol 37 181-219... [Pg.121]

Robinson JAC, Wood BJ, Blundy J D (1998) The beginning of melting of fertile and depleted peridotite at 1.5 GPa. Earth Planet Sci Lett 155 97-111... [Pg.123]

Asimow PD (1999) A model ttot reconciles major- and trace-element data from abyssal peridotites. Earth Planet Sci Lett 169 303-319... [Pg.207]

Figure 1. Solidus as a function of pressure and temperature for diy peridotite, wet peridotite, pyroxenite and eclogite. This diagram illustrates the range in solidus temperatures potentially found in the intraplate tectonic setting where compositional differences and differences in volatile contents are expected compared with the mid-ocean ridge (dry peridotite).

Melting of a mixed peridotite-pyroxenite source. The observation that ocean island and intraplate basalts have >1 indicates that garnet is required as a residual... [Pg.222]

An alternative view presented by Reiners (2002), suggests that in general pyroxenites do not have more enriched signatures than peridotites in their trace element... [Pg.222]

Figure 5. Histogram Th/U for clinopyroxenes in peridotites and pyroxenites from the Ronda peridotite massif Concentrations were measured by isotope dilution mass spectrometry in acid-leached clinopyroxenes. This histogram shows that pyroxenites do not have larger Th/U ratios than peridotites. Thus, the correlation found between ( °Th/ U) and Th/U cannot be explained by mixing of peridotite and pyroxenite melts as advocated in Sigmarsson et al. (1998). Data from Hauri et al. (1994) and Bourdon and Zindler (unpublished). It can be shown with a simple Student t-test that the two populations are indistinguishable.

Table 2. Experimentally determined mineral/melt partition coefficients (x 10 ) for U, Th, and Ba in clinopyroxene and garnet and calculated bulk partition coefficients (xlO ) for a garnet peridotite source.

Falloon TJ, Green DH (1989) The solidus of carbonated, fertile peridotite. Earth Planet Sci Lett 94 364-370 Galer SJG, O Nions RK (1986) Magmagenesis and the mapping of chemical and isotopic variations in the mantle. Chem Geol 56 45-61... [Pg.245]

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