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Isotope and trace element evidence for three component mixing in the genesis of the North Luzon arc lavas (Philippines)

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Abstract

Post-3Ma volcanics from the N Luzon arc exhibit systematic variations in 87Sr/86Sr (0.70327–0.70610), 143Nd/144Nd (0.51302–0.51229) and 208Pb*/206Pb* (0.981–1.035) along the arc over a distance of about 500 km. Sediments from the South China Sea west of the Manila Trench also exhibit striking latitudinal variations in radiogenic isotope ratios, and much of the isotopic range in the volcanics is attributed to variations in the sediment added to the mantle wedge during subduction. However, Pb-Pb isotope plots reveal that prior to subduction, the mantle end-member had high Δ8/4, and to a lesser extent high Δ7/4, similar to that in MORB from the Indian Ocean and the Philippine Sea Plate. Th isotope data on selected Holocene lavas indicate a source with unusually high Th/U ratios (4.5–5.5). Combined trace element and isotope data require that three end-members were implicated in the genesis of the N Luzon lavas: (1) a mantle wedge end-member with a Dupal-type Pb isotope signature, (2) a high LIL/HFS ‘subduction component’ interpreted to be a slab-derived hydrous fluid, and (3) an isotopically enriched end-member which reflects bulk addition (<5%) of subducted S China Sea terrigenous sediment. The 87Sr/86Sr ratios in the volcanics show a restricted range compared with that in the sediments, and this contrasts with 143Nd/144Nd and 208Pb*/206Pb*, both of which have similar ranges in the volcanics and sediments. Such differences imply that whereas the isotope ratios of Nd, Pb and Th are dominated by the component from subducted sediment, those of Sr reflect a larger relative contribution from the slab-derived fluid.

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References

  • Allègre CJ, Dupré B, Lewin E (1986) Thorium/uranium ratio of the Earth. Chem Geol 56:219–227

    Google Scholar 

  • Arculus RJ (1981) Island arc magmatism in relation to the evolution of the crust and mantle. Tectonophysics 7:113–133

    Google Scholar 

  • Bellon H, Richard M, Jacques D, Maleterre P, Maury R, Stephan JF (1988) Geology and isotopic chronology of the Luzon magmatic arc. Int Symp Geodyn Evol East Eur Margin (Paris) (Abstr)

  • Catanzaro EJ (1967) Absolute isotopic abundance ratios of three common lead reference samples. Earth Planet Sci Lett 3:343–346

    Google Scholar 

  • Chen CH, Shieh YN, Lee T, Chen CH, Mertzman SA (1990) Nd−Sr−O isotopic evidence for source contamination and an unusual mantle component under Luzon are. Geochim Cosmochim Acta 54:2473–2483

    Google Scholar 

  • Condomines M, Hemond Ch, Allègre CJ (1988) U-Th-Ra radioactive disequilibria and magmatic processes. Earth Planet Sci Lett 90:243–262

    Google Scholar 

  • Defant MJ, Jacques D, Maury RC, de Boer JZ, Joron JL (1989) Geochemistry of the Luzon are, Philippines. Geol Soc Am Bull 101:663–672

    Google Scholar 

  • Defant MJ, Maury RC, Joron JL, Feigenson MD, Letterrier J, Bellon H, Jacques D, Richard M (1990) The geochemistry and tectonic setting of the northern section of the Luzon are (the Philippines and Taiwan). Tectonophysics 183:187–205

    Google Scholar 

  • De Paolo DJ, Wasserburg GJ (1977) The sources of island arcs as indicated by Nd and Sr isotopic studies. Geophys Res Lett 4:465–468

    Google Scholar 

  • Ellam RM, Hawkesworth CJ (1988) Elemental and isotope variations in subduction related basalts: evidence for a three component model. Contrib Mineral Petrol 98:72–80

    Google Scholar 

  • Fourcade S, Maury RC, Defant MJ, McDermott F (1993) 18O isotope evidence for a crustal component in northern Luzon are lavas and ultramafic xenoliths: mantle source versus are crust contamination. Earth Planet Sci Lett (in press)

  • Gill JB (1984) Sr−Pb−Nd isotopic evidence that both MORB and OIB sources contribute to oceanic island are magmas in Fiji. Earth Planet Sci Lett 68:443–458

    Google Scholar 

  • Gill JB, Williams RW (1990) The isotopes and U-series studies of subduction-related volcanic rocks. Geochim Cosmochim Acta 54:1427–1442

    Google Scholar 

  • Gill JB, Pyle D, Williams RW (1990) Igneous rocks. In: Ivanovich M, Harmon RS (eds), Uranium series disequilibrium, 2nd edn. Oxford University Press, Oxford, UK

    Google Scholar 

  • Green TH (1980) Island-are and continent-building magmatism. A review of petrogenetic models based on experimental petrology and geochemistry. Tectonophysics 63:367–385

    Google Scholar 

  • Hamelin B, Dupré B, Allègre CJ (1986) Pb−Sr−Nd isotopic data of Indian Ocean Ridges: new evidence of large scale mapping of mantle heterogeneities. Earth Planet Sci Lett 76:288–298

    Google Scholar 

  • Hart SR (1984) A large-scale isotope anomaly in the Southern Hemisphere mantle. Nature 309:753–757

    Google Scholar 

  • Hart SR, Gerlach DC, White WM (1986) A possible new Sr−Nd−Pb mantle array and consequences for mantle mixing. Geochim Cosmochim Acta 50:1551–1557

    Google Scholar 

  • Hayes DE, Lewis SD (1984) A geophysical study of the Manila Trench, Luzon, Philippines 1. Crustal structure, gravity and regional tectonic evolution. J Geophys Res 89:9171–9195

    Google Scholar 

  • Hawkesworth CJ, Ellam RM (1989) Chemical fluxes and wedge replacement rates along Recent destructive plate margins. Geology 17:46–49

    Google Scholar 

  • Hawkesworth CJ, O'Nions RK, Pankhurst RJ, Hamilton PJ, Evenson NM (1977) A geochemical study of island-are and back-are tholeiites from the Scotia Sea. Earth Planet Sci Lett 36:253–262

    Google Scholar 

  • Hawkesworth CJ, O'Nions RK, Arculus RJ (1979) Nd and Sr isotope geochemistry of island are volcanics, Grenada, Lesser antilles. Earth Planet Sci Lett 45:237–248

    Google Scholar 

  • Hawkesworth CJ, Hergt JM, Ellam RM, McDermott F (1991) Element fluxes associated with subduction related magmatism. Philos Trans R Soc London, 335 A:393–405

    Google Scholar 

  • Hickey-Vargas R (1991) Isotope characteristics of submarine lavas from the Philippine Sea: implications for the origin of are and basin magmas of the Philippine tectonic plate. Earth Planet Sci Lett 107:290–304

    Google Scholar 

  • Jacques D (1987) Geologie et pétrographie de L'Archipel Babuyan et des Monts Tabungon et Cagua, Nord Luzon, Philippines: implications magmatologiques et géodynamiques: Thèse Doct Univ Jersité Bretagne Occidentale

  • Kay RW (1980) Volcanic are magmas: implications of a melting-mixing model for element recycling in the crust-upper mantle system. J Geol 88:497–522

    Google Scholar 

  • Kay RW, Sun SS, Lee-Hu CN (1978) Pb and Sr isotopes in volcanic rocks from the Aleutian Islands and Pribilof Islands, Alaska. Geochim Cosmochim Acta 42:263–272

    Google Scholar 

  • Knittel U, Defant MJ, Raczek I (1988) Recent enrichment in the source region of are magmas from Luzon island, Philippines: Sr and Nd isotopic evidence. Geology 16:73–76

    Google Scholar 

  • Lan CY, Chen JJ, Lee T (1986) Rb−Sr isotopic study of andesites from Lu-Tao, Lan-Hsu and Hsiao-Lan-Lsu: eruption ages and isotopic heterogeneity. Bull Inst Earth Sci Acad Sin 6:211–226

    Google Scholar 

  • Le Roux LE, Glendenin LE (1963) Half-life of 232Th. Proc Natl Meet on Nuclear Energy, Pretoria South Africa, pp 83–94

  • Mahoney JJ, Natland JH, White WM, Poreda R, Bloomer SH, Fisher RL, Baxter AN (1989) Isotopic and geochemical provinces of the Western Indian Ocean spreading centers. J Geophys Res 94:4033–4052

    Google Scholar 

  • Meadows JW, Armani RJ, Callis EL, Essling AM (1980) Half-life of 230Th. Phys Rev C22:750–754

    Google Scholar 

  • McCulloch MT, Gamble JA (1991) Geochemical and geodynamical constraints on subduction zone magmatism. Earth Planet Sci Lett 102:358–374

    Google Scholar 

  • McDermott F, Hawkesworth CJ (1991) Th, Pb and Sr isotope variations in young island are volcanics and oceanic sediments. Earth Planet Sci Lett 104:1–15

    Google Scholar 

  • McDermott F, Elliott TR, van Calsteren P, Hawkesworth CJ (1992) Measurement of 230Th/232Th ratios by thermal ionisation mass-spectrometry. Isotope Geosci (in press)

  • Morris JD, Hart SR (1983) Isotopic and incompatible trace element constraints on the genesis of island are volcanics from Cold Bay and Amak Island, Aleutians and implications for mantle structure. Geochim Cosmochim Acta 47:2015–2030

    Google Scholar 

  • Mukasa SB, McCabe R, Gill JB (1987) Pb isotopic compositions of volcanic rocks in the west and east Philippine island arcs presence of the Dupal isotopic anomaly. Earth Planet Sci Lett 84:153–164

    Google Scholar 

  • Pearce JA (1983) Role of the sub-continental lithosphere in magma genesis at active continental margins. In: Hawkesworth CJ, Norry MJ (eds) Continental basalts and mantle xenoliths, Shiva, Nantwich, UK pp 230–249

    Google Scholar 

  • Peccerillo A, Taylor SR (1976) Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastomanu area, Northern Turkey, Contrib Mineral Petrol 58:63–81

    Google Scholar 

  • Rangin C and the Tethys Pacific working group (1990) The quest for Tethys in the Western Pacific: 8 palaeogeodynamic maps for Cenozoic time. Bull Soc Geol Fr (8), VI, 907–913

    Google Scholar 

  • Richard M, Maury RC, Bellon H, Stephan JF, Boirat JM, Calderon A (1986) Geology of Mt, Irayo volcano and Batan Island, northern Philippines. Philipp Bull Volcanol: 1–27

  • Rogers NW (1992) Potassic magmatism as a key to trace-elemen enrichment processes in the upper mantle. J Volcanol Geotherm Res 50:85–99

    Google Scholar 

  • Saunders AD, Tarney J, Weaver SD (1980) Transverse geochemical variations across the Antarctic Peninsula: implications for the genesis of calc-alkaline magmas. Earth Planet Sci Lett 46:344–360

    Google Scholar 

  • Sun SS, (1980) Lead isotopic study of young volcanic rocks from mid-ocean ridges, ocean islands and island arcs. Philos Trans R Soc London 297 A:409–445

    Google Scholar 

  • Sun SS, McDonough WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and process. In: Saunders AD, Norry MJ (eds) Magmatism in ocean basins. Geol Soc Spec Publ 42: pp 313–345

  • Tatsumi Y, Hamilton DL, Nesbitt RW (1986) Chemical characteristics of fluid phase released from a subducted lithosphere and origin of are magmas: evidence from high-pressure experiments and natural rocks. J Volcanol Geotherm Res 29:293–309

    Google Scholar 

  • Taylor B, Hayes DE (1983) Origin and history of the South China basin. In: Hayes D (ed) The tectonic and geologic evolution of southeast Asian seas and islands, 2. Am Geophys Union Monogr 27:23–56

  • Taylor SR, McLennan SM (1985) The continental crust: its composition and evolution. Blackwell, Oxford, UK

    Google Scholar 

  • Tu K, Flower MFJ, Carlson RW, Xie G, Chen CY, Zhang M (1992) Magmatism in the South China Basin 1. Isotopic and trace element evidence for an endogenous Dupal mantle component. Chem Geol 97:47–63

    Google Scholar 

  • Vidal P, Dupuy C, Maury RC, Richard M (1989) Mantle metasomatism above subduction zones: trace and radiogenic isotopes in xenoliths from Batan Island, Philippines. Geology 17, 1115–1118

    Google Scholar 

  • White WM, Hoffman AW (1982) Sr and Nd isotope geochemistry of oceanic basalts and mantle evolution. Nature 296:821–825

    Google Scholar 

  • Zindler A, Hart S (1986) Chemical geodynamics. A Rev Earth Planet Sci 14:493–571

    Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Earth Sciences, The Open University, Walton Hall, MK7 6AA, Milton Keynes, UK

    F. McDermott & C. J. Hawkesworth

  2. Department of Geology, University of South Florida, 33620-5200, Tampa, FL, USA

    M. J. Defant

  3. Department des Sciences de la Terre, Université de Bretagne Occidentale, Faculté des Sciences, Avenue Le Gorgeu, F-29283, Brest, France

    R. C. Maury

  4. Groupe des Sciences de la Terre, C.E.N. Sacley, F-91191, Gif-sur-Yvette, France

    J. L. Joron

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  1. F. McDermott
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  2. M. J. Defant
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  3. C. J. Hawkesworth
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  4. R. C. Maury
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  5. J. L. Joron
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McDermott, F., Defant, M.J., Hawkesworth, C.J. et al. Isotope and trace element evidence for three component mixing in the genesis of the North Luzon arc lavas (Philippines). Contr. Mineral. and Petrol. 113, 9–23 (1993). https://doi.org/10.1007/BF00320828

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