Ocean Science Journal

, Volume 53, Issue 2, pp 369–380 | Cite as

Rock Magnetic Approaches Used on Deep-sea Sediments in the Northeastern Equatorial Pacific

  • Cheong Kee ParkEmail author
  • Gun Chang Lee
Part of the following topical collections:
  1. Deep Seabed Mining Resources


Rock magnetic properties of unconsolidated sediments from the Korea Deep Ocean Study area of the northeastern equatorial Pacific were analyzed to trace the time-dependent variations of sedimentary environments. For upper Pleistocene sediments, light-brown sediments predominate, whereas the lower sediments deposited in the late Pliocene are dark brown. Rock magnetic properties also clearly differ among the two distinct color environments. Values of anhysteretic remanent magnetization and low-field magnetic susceptibility are highly responsive to changes in the color of the sediment. For example, comparatively low values denote a dominance of coarse-grained magnetic minerals as observed in the lower dark-brown layers. With respect to the content of magnetic minerals, coarse magnetic grains are highly concentrated in the darker-colored sediment layers. However, both the magnetic mineral dependent parameter (S ratio) and results of the scanning electron microscope observation indicate that magnetic mineral changes did not occur along the core depth, which means that there was no apparent source change. Without distinctive source changes, the variations in the rock magnetic properties likely reflect a process by which the magnetic grains were primarily transported by enhanced wind and bottom currents and affected by diagenetic dissolution as a function of both the time from burial and the extremely low sedimentation rates after deposition.


rock magnetic properties paleoenvironment polymetallic nodules northeastern equatorial Pacific KODOS area 


  1. Aoki S, Kohyama N, Sudo T (1979) Mineralogical and chemical properties of smectite in sediment cores from southeastern Pacific. Deep-Sea Res 26:893–902CrossRefGoogle Scholar
  2. Bischoff JK, Heath GR, Leinen M (1979) Geochemistry of deepsea sediments from the Pacific manganese nodule province: DOMES site A, B and C. In: Bischoff JL, Piper DZ (eds) Marine geology and oceanography of the pacific manganese nodule province. Plenum, New York, pp 397–436CrossRefGoogle Scholar
  3. Bloemendal J, King JW, Hall FR, Doh SJ (1992) Rock magnetism of Late Neogene and Pleistocene deep-sea sediments: relationship to sediment source, diagenetic processes, and sediment lithology. J Geophys Res 97(B4):4361–4375CrossRefGoogle Scholar
  4. Bostock HC, Hayward BW, Neil HL, Currie KI, Dunbar GB (2011) Deep-water carbonate concentrations in the southwest Pacific. Deep-Sea Res Pt I 58(1):72–85CrossRefGoogle Scholar
  5. Channell JET, Hodell DA, Margari V, Skinner LC, Tzedakis PC, Kesler MS (2013) Biogenic magnetite, detrital hematite, and relative paleointensity in Quaternary sediments from the Southwest Iberian Margin. Earth Planet Sc Lett 376:99–109CrossRefGoogle Scholar
  6. Corliss BH, Hollister CD (1979) Cenozoic sedimentation in the central north Pacific. Nature 282:707–709CrossRefGoogle Scholar
  7. Deng C, Shaw J, Liu Q, Pan Y, Zhu R (2006) Mineral magnetic variation of the Jingbian loess/paleosol sequence in the northern Loess Plateau of China: implication for Quaternary development of Asian aridification and cooling. Earth Planet Sc Lett 271:248–259CrossRefGoogle Scholar
  8. Doh SJ, King JW, Leinen M (1988) A rock-magnetic study of giant piston core LL44-GPC3 from the central north Pacific and its paleoceanographic implication. Paleoceanography 3:89–111CrossRefGoogle Scholar
  9. Doh SJ (1989) Stratigraphic and sedimentological implications of rock-magnetic properties of marine sediments from the north west Pacific. J Geol Soc Korea 25:137–151Google Scholar
  10. Evans ME, Heller F (2003) Environmental magnetism: principles and applications of enviromagnetics. Academic Press, Oxford, 299 pGoogle Scholar
  11. Fostner U, Stoffer P (1981) Chemical fractionation of transition elements in Pacific pelagic sediments. Geochim Cosmochim Ac 45:1141–1146CrossRefGoogle Scholar
  12. Greenslate JL, Frazer JZ, Arrehenius G (1973) Origin and deposition of selected transition elements in the seabed. In: Morgenstein M (ed) The origin and distribution of manganese nodules in the Pacific and prospects for exploration. Hawaii Inst. Geophysics, Honolulu, pp 45–69Google Scholar
  13. Hein GR, Ross CR, Alexander E (1979) Mineralogy and diagenesis of surface sediments. In: Bischoff JL, Piper DZ (eds) Marine geology and oceanography of the Pacific manganese nodule province. Plenum Press, New York, pp 365–396CrossRefGoogle Scholar
  14. Henshaw PC Jr, Merill RT (1980) Magnetic and chemical changes in marine sediments. Rev Geophys Space Phys 18:483–504CrossRefGoogle Scholar
  15. Horn DR, Horn BM, Delach MN (1973) Copper and nickel content of ocean ferromanganese deposits and their relation to properties of the substrate. In: Morgenstein M (ed) The origin and distribution of manganese nodules in the Pacific and prospects for exploration. Hawaii Inst. Geophysics, Honolulu, pp 71–76Google Scholar
  16. Jacob MB, Hays JD (1972) Paleo-climate events indicated by mineralogical changes in deep-sea sediments. J Sediment Petrol 42:889–898Google Scholar
  17. Janecek TR, Rea DK (1983) Eolian deposition in the northeast Pacific ocean: Cenozoic history of atmospheric circulation. Geol Soc Am Bull 94:730–738CrossRefGoogle Scholar
  18. Johnson HP, Kinoshita H, Merill RT (1975) Rock magnetism and paleomagnetism of some north Pacific deep-sea sediments. Geol Soc Am Bull 86:412–420CrossRefGoogle Scholar
  19. Jung HS, Lee CB, Jeong KP, Kang JK (1998) Geochemical and mineralogical characteristic in two-color core sediments from the Korea Deep Ocean Study (KODOS) area, northeast equatorial Pacific. Mar Geol 144:295–309CrossRefGoogle Scholar
  20. Karlin R (1990) Magnetic mineral diagenesis in suboxic sediments at Bettis site W-N, NE Pacific ocean. J Geophys Res 95:4421–4436CrossRefGoogle Scholar
  21. Karlin R, Levi S (1985) Diagenesis of magnetic minerals in recent hemipelagic sediments. J Geophys Res 90:10373–10392CrossRefGoogle Scholar
  22. Kent PV, Lowrie W (1974) Origin of magnetic instability in sediments cores from the central north Pacific. J Geophys Res 79:2987–3000CrossRefGoogle Scholar
  23. Kirschvink JL, Chang SR (1984) Ultra-fine grained magnetite in deep-sea sediments: possible bacterial magnetofossils. Geology 12:559–562CrossRefGoogle Scholar
  24. Korff L, Dobeneck T, Frederichs T, Kasten S, Kuhn G, Gersonde R, Diekmann B (2016) Cyclic magnetite dissolution in Pleistocene sediments of the abyssal northwest Pacific Ocean: evidence for glacial oxygen depletion and carbon trapping. Paleoceanography 31:600–624CrossRefGoogle Scholar
  25. Leslie BW, Lund PSP, Hammond DE (1990) Rock magnetic evidence for the dissolution and authigenic growth of magnetic minerals within anoxic marine sediments of the California continental borderland. J Geophys Res 95:4437–4452CrossRefGoogle Scholar
  26. Lovlie R, Lowrie W, Jacobs M (1971) Magnetic properties and mineralogy of four deep-sea cores. Earth Planet Sc Lett 15:157–168CrossRefGoogle Scholar
  27. Maher BA (1988) Magnetic properties of some synthetic submicron magnetite. Geophys J Int 94:83–96CrossRefGoogle Scholar
  28. Marchig V, Gundlach H (1981) Separation of iron from manganese and growth of manganese nodules as a consequence of diagenetic ageing of radiolarians. Mar Geol 40:35–43CrossRefGoogle Scholar
  29. Munsell (1975) Soil colour charts. Kollmorgen, BaltimoreGoogle Scholar
  30. Opdyke ND, Foster JH (1970) Paleomagnetism of cores from the north Pacific. Geol Soc Am Mem 126:83–119Google Scholar
  31. Park CK, Doh SJ, Suk DW (2000) Sedimentary fabric on deep-sea sediments from KODOS area in the eastern Pacific. Mar Geol 171:115–125CrossRefGoogle Scholar
  32. Park CK, Son SK, Kim KH, Chi SB, Doh SJ (2004) Paleomagnetic results from deep-sea sediment of the Korea Deep Ocean Study (KODOS) area (northern equatorial Pacific) and their paleodepositional implications. Geo-Mar Lett 24:112–124CrossRefGoogle Scholar
  33. Park CK, Kim W, Ko Y, Lee HB, Moon JW, Doh SJ (2012) Paleomagnetic records and mineral-magnetic properties of deep-sea sediments in the NW Pacific: paleoenvironmental implication. Ocean Sci J 47:497–508CrossRefGoogle Scholar
  34. Piper DZ (1988) The metal oxide fraction of pelagic sediment in the equatorial north Pacific ocean: a source of metal in ferromanganese nodules. Geochim Cosmochim Ac 52:2127–2145CrossRefGoogle Scholar
  35. Prince RA, Heath GR, Kminz M (1980) Paleomagnetic studies of central north Pacific sediments cores: stratigraphy, sedimentation rates, and the origin of magnetic instability: summary. Geol Soc Am Bull 91:1789–1835CrossRefGoogle Scholar
  36. Sagnotti L, Macri P, Camerlenghi A, Rebesco M (2001) Environmental magnetism of Antarctic Late Pleistocene sediments and interhemispheric correlation of climatic events. Earth Planet Sc Lett 192:65–80CrossRefGoogle Scholar
  37. Smirnov AV, Tarduno JA (2000) Low-temperature magnetic properties of pelagic sediments (Ocean Drilling Program Site 805C): tracers of maghemitization and magnetic mineral reduction. J Geophys Res 105:16457–16471CrossRefGoogle Scholar
  38. Tarduno JA, Tian W, Wilkison S (1998) Biogeochemical remanent magnetization in pelagic sediments of the western equatorial Pacific Ocean. Geophys Res Lett 25:3987–3990CrossRefGoogle Scholar
  39. Tarduno JA (1994) Temporal trends of magnetic dissolution in the pelagic realm: gauging paleoproductivity? Earth Planet Sc Lett 123:39–48CrossRefGoogle Scholar
  40. Tarling DH, Hrouda F (1993) The magnetic anisotropy of rocks. Chapman & Hall, London, 218 pGoogle Scholar
  41. Verosub KL, Roberts AP (1995) Environmental magnetism: past, present, and future. J Geophys Res 100:515–529CrossRefGoogle Scholar
  42. Yamazaki T, Ioka N (1997) Environmental rock-magnetism of pelagic clay: implications for Asian eolian input to the North Pacific since the Pliocene. Paleoceanography 12:111–124CrossRefGoogle Scholar
  43. Yamazaki T, Katsura T (1990) Magnetic grain size and viscous remanent magnetization of pelagic clay. J Geophys Res 95: 4373–4382CrossRefGoogle Scholar
  44. Yamazaki T, Katsura T, Marumo K (1991) Origin of stable remanent magnetization of siliceous sediments in the central equatorial Pacific. Earth Planet Sc Lett 105:81–93CrossRefGoogle Scholar
  45. Yamazaki T (2009) Environmental magnetism of Pleistocene sediments in the North Pacific and Ontong-Java Plateau: temporal variations of detrital and biogenic components. Geochem Geophy Geosy 10:1–18CrossRefGoogle Scholar

Copyright information

© Korea Institute of Ocean Science & Technology (KIOST) and the Korean Society of Oceanography (KSO) and Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Deep-sea and Seabed Mineral Resources Research CenterKIOSTBusanKorea

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