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Geo-Marine Letters

, Volume 8, Issue 3, pp 139–147 | Cite as

Quaternary hemipelagic sedimentation in the basins flanking the Solomon Islands volcanic arc

  • J. B. Colwell
  • N. F. Exon
Article

Abstract

Quaternary sediments in the Woodlark Basin and New Georgia Sound, adjacent to the Solomon Islands volcanic arc, are hemipelagic. They consist of mixtures of clay minerals, calcareous plankton (foraminifera, coccoliths, and pteropods), and sand- and silt-sized volcanic debris. Variations in sediment composition are related primarily to distance from land (the source of volcanic components), water depth (because of the Aragonite and Calcite Compensation Depths), and bathymetric isolation. Much of the sedimentary debris is delivered to the basin by turbidity currents and other mass movements; little material is supplied by ash fall. Sedimentation rates appear to exceed 3 cm/1,000 years in New Georgia Sound, and range from 2 to 4.5 cm/1,000 years in the Woodlark Basin.

Keywords

Clay Sedimentation Calcite Water Depth Turbidity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Adelseck CG (1977) Recent and late Pleistocene sediments for the Equatorial Pacific Ocean: Sedimentation and dissolution. PhD Thesis, University of California, San Diego (unpubl.) 179 ppGoogle Scholar
  2. Andrews JE, HIG Core Laboratory Staff (1973) Sediment core descriptions: R/V Mahi 1970 cruise, Western Pacific. Hawaii Institute of Geophysics Data Report 24, HIG-73-7Google Scholar
  3. Andrews JE, Packham G, and others (1975) Initial Reports of the Deep Sea Drilling Project, Volume 30. U.S. Government Printing Office, Washington, D.C., 753 ppGoogle Scholar
  4. Berger WH (1973) Deep-sea carbonates: Pleistocene dissolution cycles. Journal of Foraminifera Research 3:187–195Google Scholar
  5. Berger WH (1977) Deep-sea carbonate and the deglaciation preservation spike in pteropods and foraminifera. Nature 269:301–304Google Scholar
  6. Berger WH (1981) Paleocenography: the deep-sea record. In: Emiliani C (ed) The Oceanic Lithosphere, the Sea, 7. John Wiley and Sons, NY, NY pp 1437–1519Google Scholar
  7. Blow WH (1969) Late Middle Eocene to Recent plantonic foraminiferal biostratigraphy. Proceedings First International Conference on Planktonic Microfossils, 1967, Leiden, E. J. Brill 1:199–421Google Scholar
  8. Brocher TM, Wirasantosa S, Theyer F, Mato C (1985) Regional sedimentation patterns along the northern Melanesian borderland. In: Brocher TM (ed) Geological Investigation of the Northern Melanesian Borderland. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 3, pp 77–102Google Scholar
  9. Bruns TR, Cooper AK, Mann DM, Vedder JG (1986) Seismic stratigraphy and structure of sedimentary basins in the Solomon Islands region. In: Vedder JG, Pound KS, Boundy SQ (eds) Geology and Offshore Resources of Pacific Islands Arcs—Central and Western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 4, pp 177–214Google Scholar
  10. Coleman PJ (1965) Stratigraphic and structural notes on the British Solomon Islands with reference to the first geological map. British Solomon Islands Geological Record (1959–1962) 2:17–31Google Scholar
  11. Coleman PJ (1966) The Solomon islands as an island arc. Nature 211:1249–1251Google Scholar
  12. Coleman PJ (1970) Geology of the Solomon and New Hebrides Islands, as part of the Melanesian re-entrant, Southwest Pacific. Pacific Science 24:289–314Google Scholar
  13. Colwell JB (1986) Preliminary descriptions of gravity cores from New Georgia Sound, Solomon Islands. In: Vedder JG, Pound KS, Boundy SQ (eds) Geology and Offshore Resources of Pacific Island Arcs-Central and Western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 4, pp 237–242Google Scholar
  14. Colwell JB, Vedder JG (1984) Initial results of the 1984 S. P. Lee cruise L6-B4-SP in the western Solomon Islands and eastern Papua New Guinea. UN ESCAP CCOP/SOPAC Cruise Report 91, 25 ppGoogle Scholar
  15. Colwell JB, Tiffin DL (1986) Recent depositional patterns in the Central Solomons Trough of the Solomon Islands. In: Vedder JG, Pound KS, Boundy SQ (eds) Geology and Offshore Resources of Pacific Island Arcs-Central and Western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 4, pp 243–254Google Scholar
  16. Colwell JB, Niem AR, Niem WA (1987) Sedimentology and clay mineralogy of Quaternary sediments from New Georgia Sound, Solomon Islands. In Vedder JG, Bruns TR, Colwell JB (eds) Aspects of Regional Geology, Solomon Islands and Papua New Guinea. UN ESCAP CCOP/SOPAC Joint Cruise Report R/V S.P. Lee 1984, 258 ppGoogle Scholar
  17. Coulson Fl, Vedder JG (1986) Geology of the western and central Solomon Islands. In: Vedder JG, Pound KS, Boundy SQ (eds) Geology and Offshore Resources of Pacific Island Arcs-Central and Western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 4, pp 59–87Google Scholar
  18. Crook KAW, Taylor GR (1987) Sedimentary petrology and mineral chemistry, Woodlark Basin-Solomon Islands offshore region. In: Taylor B, Exon NF (eds) Marine Geology, Geophysics and Geochemistry of the Woodlark Basin-Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources EartH Science Series 7, pp 295–346Google Scholar
  19. Eade JV (1986) Nature and origin of volcanic glass in deep-sea sediments of North Fiji Basin. Abstracts Twelfth International Sedimentological Congress, Canberra, Australia, pp 89–90Google Scholar
  20. Eberl DD (1984) Clay mineral formation and transformation in rocks and soils. Philosophical Transactions Royal Society London A 311:241–257Google Scholar
  21. Eswaran H, De Conick F (1971) Clay mineral formations and transformations in basaltic soils in tropical environments. Pedologie 21:181–210Google Scholar
  22. Exon NF (1982) Offshore sediments, phosphorite and manganese nodules in the Samoan region, southwest Pacific. South Pacific Marine Geology Notes 2:103–120Google Scholar
  23. Exon NF, Colwell JB, Bolton B (1987) Sedimentology of Quaternary sediment cores from the Solomon Islands offshore region. In: Taylor B, Exon NF (eds) Marine Geology, Geophysics and Geochemistry of the Woodlark Basin—Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 7, pp 241–263Google Scholar
  24. Griffin JJ, Koide M, Hohndorf JW, Hawkins JW, Goldberg ED (1972) Sediments of the Lau Basin-rapidly accumulating volcanic deposits. Deep Sea Research 19:139–148Google Scholar
  25. Jezek PA (1976) Composition variations within and among volcanic ash layers in the Fiji Plateau area. Journal Geology 84:595–616Google Scholar
  26. Kennett JP (1982) Marine Geology. Prentice Hall, Englewood Cliffs, NJ, 813 ppGoogle Scholar
  27. Kroenke LW (1972) Geology of the Ontong Java Plateau. Hawaii Institute of Geophysics Report 72-5, University of Hawaii, 119 ppGoogle Scholar
  28. Kroenke LW (1984) Solomon Islands: San Cristobal to Bougainville and Buka. In: Kroenke LW (ed) Cenozoic Tectonic Development of the Southwest Pacific. UN ESCAP, COOP/SO-PAC Technical Bulletin 6, pp 47–61Google Scholar
  29. Lonsdale P (1975) Sedimentation and tectonic modification of Samoan archipelago apron. American Association of Petroleum Geologists Bulletin 59:780–798Google Scholar
  30. Saito T, Burckle LH, Hays JD (1975) Late Miocene to Pleistocene biostratigraphy of equatorial Pacific sediments. Micropalaeontology Special Publication 1:226–244Google Scholar
  31. Shafik S (1987) Calcareous nannofossils from the Solomons-Bougainville region. In: Vedder JG, Bruns TR, Colwell JB (eds) Aspects of Regional Geology, Solomon Islands and Papua New Guinea. UN ESCAP CCOP/SOPAC Joint Cruise Report R/V S.P. Lee 1984, 258 ppGoogle Scholar
  32. Shafik, S, Belford DJ (1987) Quaternary calcareous microfossils in deep-sea samples from the Woodlark-Solomons region, tropical Pacific. In Taylor B, Exon NF (eds) Marine Geology, Geophysics and Geochemistry of the Woodlark Basin-Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 7, pp 347–363Google Scholar
  33. Taylor B (1987) A geophysical study of the Woodlark-Solomons region. In: Taylor B, Exon NF (eds) Marine Geology, Geophysics and Geochemistry of the Woodlark Basin-Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 7, pp 25–48Google Scholar
  34. Taylor B, Exon NF (1987) An investigation of ridge subduction in the Woodlark-Solomons region: introduction and overview. In: Taylor B, Exon NF (eds) Marine Geology, Geophysics and Geochemistry of the Woodlark Basin-Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Science Series 7, pp 1–24Google Scholar
  35. Valencia MJ (1973) Calcium carbonate and grainsize analysis of surface sediments, western equatorial Pacific. Pacific Science 27:290–303Google Scholar
  36. Velde B (1985) Clay minerals—a physico-chemical explanation of their occurrence. Developments Sedimentology 40, Elsevier, Amsterdam, 427 ppGoogle Scholar
  37. Volat J-L, Pastouret L, Vergnaud-Grazzini C (1980) Dissolution and carbonate fluctuations in Pleistocene deep-sea cores: a review. Marine Geology 34:1–28CrossRefGoogle Scholar

Copyright information

© Springer-Verlag New York Inc. 1988

Authors and Affiliations

  • J. B. Colwell
    • 1
  • N. F. Exon
    • 1
  1. 1.Bureau of Mineral Resources, Geology & GeophysicsCanberraAustralia

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