Mantle recycling

Geochemistry of oceanic carbonatites compared with continental carbonatites mantle recycling of oceanic crustal carbonate. Contributions to Mineralogy and Petrology, 142, 520-542. 

Bouman C, Elliott TR (1999) Li isotope compositions of Mariana arc lavas Implications for crust-mantle recycling. Ninth Goldschmidt Conf Abst, LPI Contribution 971, Lunar Planetary Institute, 35 Bouman C, Elliott TR, Vroon PZ, Pearson DG (2000) Li isotope evolution of the mantle from analyses of mantle xenoliths. J Conf Abst 5 239... 

Moriguti T, Nakamura E (1998b) Across-arc variation of Li isotopes in lavas and implications for crust/mantle recycling at subduction zones. Earth Planet Sci Lett 163 167-174... 

Ader M, Coleman ML, Doyle SP, Stroud M, Wakelin D (2001) Methods for the stable isotopic analysis of chlorine in chlorate and perchlorate compounds. Anal Chem 73(20) 4946-4950 Ben Othman D, White WM, Patchett J (1989) The geochemistry of marine sediments, island arc magma genesis, and crust-mantle recycling. Earth Planet Sci Lett 94 1-21 Beneteau KM, Aravena R, Frape SK (1999) Isotopic characterization of chlorinated solvents-laboratory and field results. Organic Geochemistry 30(8A) 739-753... 

Following burial, marine sediments are recycled via two pathways a crustal route or a mantle route. In the crustal route, burial followed by diagenesis, catagenesis, and metagenesis transfers sediments into either sedimentary or metamorphic rocks. These rocks are eventually uplifted onto land by crustal motions associated with plate tectonics. In the mantle recycling route, sediments and sedimentary rocks are subducted at... 

Ben Othman D., White W. M., and Patchett J. (1989) The geochemistry of marine sediments, island arc magma genesis, and crust-mantle recycling. Earth Planet. Set Utt. 94, 1-21. 

Calculated bulk rock trace-element systematics of eclogites have wider implications for mantle recycling models and bulk silicate earth mass balance. The subchondritic Nb/Ta, Nb/La, and Ti/Zr of both continental cmst and depleted mantle require the existence of an additional reservoir with superchondritic ratios to complete the terrestrial mass balance. Rudnick et al. (2000) have shown that rutile-bearing eclogites from cratonic mantle have suitably superchondritic Nb/Ta, Nb/La, and Ti/Zr such that if this component formed 1 -6% by weight of the bulk silicate earth, this would resolve the mass imbalance. This mass fraction far exceeds the likely mass of eclogite in the continental lithosphere and so the material is proposed to reside in the lower mantle, possibly at the core-mantle boundary. 

Rapp R. P. and Watson E. B. (1995) Dehydration melting of metabasalt at 8-32 kbar implications for continental growth and crust-mantle recycling. J. Petrol. 36, 891-932. 

Schubert, 1984) for no mantle recycling and about twice that much for the alternative where about one-half of the juvenile crust contributes to the orogenic buildup of the continents, while the other half is recycled into the mantle. 

First, the total amount of crust-to-mantle recycling is defined by R, the time-integrated recycling mass flux over Earth history expressed as a fraction of present-day crust mass ... 

Second, it is assumed that the recycling mass flux and its ancillary trace species fluxes are at any time dependent on the amount of crust in existence at that time. This dependence can take the form of various functions, and a variable geometry parameter E is introduced, which describes the crust to mantle recycling flux (t)recycimg function of crust mass in existence. 

However, the results do provide a perspective, which is summarized in Figure 7. Integrating the crust-mantle recycling fluxes of Figure 4b over... 

Hoemle K., Tilton G., Le Bas M. J., Duggen S., and Garbe-Schonberg D. (2002) Geochemistry of oceanic carbonatites compared with continental carbonatites mantle recycling of oceanic crustal carbonate. Contrib. Mineral. Petrol 142, 520-542. 

Hart SR, Staudigel H (1989) Isotopic characterization and identification of recycled components. In Crast/mantle recycling at convergence zones. Hart SR, Giilen L (eds) Klewer Academic Publishers, Dordrecht, p 15-28... 

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