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Isotopic and trace-element profiles across the New Britain island arc, Papua New Guinea

Abstract

New Pb-, Sr-, and Nd-isotopic data have been obtained for the rocks of volcanoes overlying a wide range of depths (100–580 km) to the Wadati-Benioff Zone (WBZ) in the New Britain island arc, Papua New Guinea. Well-defined trends consistent with two-component mixing are observed in combined Pb-isotope/trace-element plots. One of the components is believed to represent a slab contribution whose isotopic signature, unlike those noted for several other arcs, appears to be dominated by subducted, altered, oceanic crust rather than by sediment. This conclusion is consistent with the results of a recent Be−B study of New Britain rocks. The influence of the slab component is considered to decrease as depth to the WBZ increases. Higher abundances of high-field-strength elements correlate with increasing depths to the WBZ, and may be indicative of smaller degrees of partial melting of the mantle wedge as WBZ depths increase. Abundances of other incompatible elements appear to reflect a complex interplay between the slab-derived flux and melting process.

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References

  1. Arculus RJ, Johnson RW (1981) Island-arc magma sources: a geochemical assessment of the roles of slab-derived components and crustal contamination. Geochem J 15:109–133

  2. Chappell BW (1991) Trace element analysis of rocks by X-ray spectrometry. In: Barrett CS, Gilfrich JV, Noyan IC, Huang TC, Predecki PK (eds) Advances in X-ray analysis. Plenum Press, New York, pp 263–276

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

  4. Cox KG, Bell JD, Pankhurst RJ (1979) The interpretation of igneous rocks. Allen and Unwin, London, pp 450

  5. Davidson JP (1987) Crustal contamination versus subduction zone enrichment: examples from the Lesser Antilles and implications for mantle source compositions of island arc volcanic rocks. Geochim Cosmochim Acta 51:2185–2198

  6. Davidson JP, Wolff JA (1989) On the origin of the Nb−Ta “anomaly” in arc magmas. Trans Am Geophys Union (EOS) 70:1387

  7. DePaolo DJ, Johnson RW (1979) Magma genesis in the New Britain island arc: constraints from Nd and Sr isotopes and trace element patterns. Contrib Mineral Petrol 70:367–379

  8. Dickinson WR (1975) Potash-depth (K-h) relations in continental margin and intra-ocean magmatic arcs. Geology 3:53–56

  9. Ewart A, Hawkesworth CJ (1987) The Pleistocene-Recent Tonga-Kermadec arc lavas: interpretation of new isotopic and rare-earth data in terms of a depleted mantle source model. J Petrol 28:495–530

  10. Fryer P, Ambos EL, Hussong DM (1985) Origin and emplacement of Mariana forearc seamounts. Geology 13:774–777

  11. Gill JB (1981) Orogenic andesites and Plate Tectonics Springer Berlin Heidelberg New York, pp 358

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

  13. Gill JB, Gorton M (1973) A proposed geological and geochemical history of eastern Melanesia. In: Coleman PJ (ed) The Western Pacific Island Arcs, marginal seas, geochemistry. University of W Australia Press, pp 543–566

  14. Gill JB, Morris JD, Johnson RW (1992) Timescale for producing the geochemical signature of island arc magmas: U−Th−Po and Be−B systematics in recent Papua New Guinea lavas. Geochim Cosmochim Acta (submitted)

  15. Green DH (1972) Magmatic activity as the major process in the chemical evolution of the Earth's crust and mantle. Tectonophysics 13:47–71

  16. Green DH (1973) Experimental studies on a model upper mantle composition at high pressure under water-saturated and water-undersaturated conditions. Earth Planet Sci Lett 19:37–53

  17. Green TH (1981) Experimental evidence for the role of accessory phases in magma genesis. J Volcanol Geothermal Res 10:405–422

  18. Hamelin B, Mahnes G, Albarede F, Allègre CJ (1985) Precise lead isotope measurements by the double spike technique: a reconsideration. Geochim Cosmochim Acta 49:173–182

  19. Hamelin B, Dupré B, Allègre CJ (1985/86) 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

  20. Harris PG (1957) Zone refining and the origin of potassic basalts. Geochim Cosmochim Acta 12:195–208

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

  22. Hawkesworth CJ, Hergt JM, McDermott F, Ellam RM (1991b) Destructive margin magmatism and contributions from the mantle wedge and subducted crust. Aust J Earth Sci 38:577–594

  23. Hedge CE, Knight RJ (1969) Lead and strontium isotopes in volcanic rocks from northern Honshu, Japan. Geochem J 3:15–24

  24. Hergt JM, Hawkesworth CJ (1992) The Pb, Sr and Nd isotopic evolution of the Lau Basin. ODP Lau Basin Volume (submitted)

  25. Hildreth W, Moorbath S (1988) Crustal contributions to arc magmatism in the Andes of central Chile. Contrib Mineral Petrol 98:455–489

  26. Jakeš P, White AJR (1972) Major and trace element abundances in volcanic rocks of orogenic areas. Geol Soc Am Bull 83:29–40

  27. Jezek P, Gill J, Whitford D, Duncan R (1979) Reconnaissance geochemistry of the Sangihe-Sulawesi volcanic arc, Indonesia. Trans Am Geophys Union (EOS) 61:400

  28. Johnson RW (1977) Distribution and major element chemistry of late Cainozoic volcanoes at the southern margin of the Bismarck Sea, Papua New Guinea. Aust Bur Miner Resour Rep 188

  29. Johnson RW, Arculus RJ (1978) Volcanic rocks of the Witu Islands, Papua New Guinea: the origin of magmas above the deepest parts of the New Britain Benioff zone. Bull Volcanol 41:609–655

  30. Johnson RW, Chappell BW (1979) Chemical analyses of rocks from the late Cainozoic volcanoes of north-central New Britain and the Witu Islands, Papua New Guinea. Aust Bur Miner Resour Rep 209

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

  32. Kelemen PB, Johnson KTM, Kinzler RJ, Irving AJ (1990) High field strength element depletions in arc basalts due to mantle-magma interactions. Nature 345:521–524

  33. Klein EM, Langmuir CH, Zindler A, Staudigel H, Hamelin B (1988) Isotopic evidence of a mantle convection boundary at the Australian-Antarctic discordance. Nature 333:623–629

  34. Marsh BD (1982) On the mechanics of igneous diapirism, stoping and zone melting. Am J Sci 282:808–855

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

  36. McKenzie D, O'Nions RK (1991) Partial melt distributions from inversion of rare earth concentrations. J Petrol 32:1021–1091

  37. Morris JD, Hart SR (1980) Transverse geochemical variations across the Aleutian arc: Cold Bay to Amak. Trans Am Geophys Union (EOS) 61:400

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

  39. Morris JD, Leeman WP, Tera F (1990) The subducted component in island arc lavas: constraints from Be isotopes and B−Be systematics. Nature 344:31–36

  40. Navon O, Stolper E (1987) Geochemical consequences of melt percolation: the upper mantle as a chromatographic column. J Geol 95:285–307

  41. Page RW, Johnson RW (1974) Strontium isotope ratios of Quaternary volcanic rocks from Papua New Guinea. Lithos 7:91–100

  42. Peacock SM (1990) Numerical simulation of subduction zone pressure-temperature-time paths: constraints on fluid production and arc magmatism. Philos Trans R Soc London A 335:341–353

  43. Plank T, Langmuir H (1988) An evaluation of the global variations in the major element chemistry of arc basalts. Earth Planet Sci Lett 90:349–370

  44. Ringwood AE (1990) Slab mantle interactions 3: petrogenesis of intraplate magmas and structure of the upper mantle. Chem Geol 82:187–207

  45. Ryerson FJ, Watson EB (1987) Rutile saturation in magmas: implications for Ti−Nb−Ta depletion in island arc basalts. Earth Planet Sci Lett 86:225–239

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

  47. Sigmarsson O, Condomines M, Morris JD, Harmon RS (1990) Uranium and10Be enrichments by fluids in Andean arc magmas. Nature 346:163–165

  48. Spiegelman M, McKenzie D (1987) Simple 2-D models for melt extraction at mid-ocean ridges and island arcs. Earth Planet Sci Lett 83:137–152

  49. Stern RJ, Morris J, Bloomer SH, Hawkins JW (1991) The source of the radiogenic component in convergent margin magmas: trace element and radiogenic isotope evidence from Eocene boninites, Mariana forearc. Geochim Cosmochim Acta 55:1467–1481

  50. Stipp JJ (1968) The geochronology and petrogenesis of the Cenozoic volcanics of the North Island island, New Zealand. PhD thesis, Australian National University, Canberra (unpublished)

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

  52. Tatsumi Y (1989) Migration of fluid phases and genesis of basalt magmas in subduction zones. J Geophys Res 94:4697–4707

  53. Taylor SR, Gorton M (1977) Geochemical application of spark-source mass spectrometry III: element sensitivity, precision and accuracy. Geochim Cosmochim Acta 41:1375–1380

  54. Vukadinovic D, Nicholls IA (1989) The petrogenesis of island arc basalts from Gunung Slamet volcano, Indonesia: trace element and87Sr/86Sr constraints. Geochim Cosmochim Acta 53:2349–2363

  55. White WM, Patchett PJ (1984) Hf−Nd−Sr isotopes and incompatible elements abundances in island arcs: implications for magma origins and crust-mantle evolution. Earth Planet Sci Lett 67:167–185

  56. White WM, Hofmann AW, Puchelt H (1987) Isotope geochemistry of Pacific Mid-Ocean Ridge Basalt. J Geophys Res 92:4881–4893

  57. Whitford DJ, Nicholls IA, Taylor SR (1979) Spatial variations in the geochemistry of Quaternary lavas across the Sunda arc in Java and Bali. Contrib Mineral Petrol 70:341–356

  58. Whitford DJ, White WM, Jezek PA (1981) Neodymium isotopic composition of Quaternary island arc lavas from Indonesia. Geochim Cosmochim Acta 45:989–995

  59. Wilson M (1989) Igneous petrogenesis. Unwin Hyman Ltd, London

  60. Woodhead JD (1989) Geochemistry of the Mariana arc (western Pacific): source composition and processes. Chem Geol 76:1–24

  61. Woodhead JD, Johnson RW, Dunkley PN (1992) Arc reversal, sediment subduction and forearc volcanism: isotope and trace element geochemistry of volcanic rocks from the New Georgia Group, Solomon Islands. Geochim Cosmochim Acta (submitted)

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Correspondence to Jon D. Woodhead.

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Woodhead, J.D., Johnson, R.W. Isotopic and trace-element profiles across the New Britain island arc, Papua New Guinea. Contr. Mineral. and Petrol. 113, 479–491 (1993). https://doi.org/10.1007/BF00698317

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Keywords

  • Mineral Resource
  • High Abundance
  • Partial Melting
  • Oceanic Crust
  • Isotopic Signature