A preliminary assessment of the symmetry of source composition and melting dynamics across the Azores plume

Geochemistry, Geophysics, Geosystems

Volumn 11, Issue 2, 2010, Pages

  Beier, Christoph ^a,d   Turner, Simon ^a   Plank, Terry ^b   White, William ^c  

^a MACQUARIE UNIVERSITY   (Australia)

^b Department of Earth and Environmental Sciences   (United States)

^c Institute for the Study of the Continents   (United States)

^d UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

Author keywords

Azores; Basalts; Corvo; Flores; Mantle plumes

Indexed keywords

EID: 77249157278     PISSN: 15252027     EISSN: 15252027     Source Type: Journal    
DOI: 10.1029/2009GC002833     Document Type: Article

References (60)

1. Adler, R., L. Polyak, J. D. Ortiz, D. S. Kaufman, J. E. T. Channell, C. Xuan, A. G. Grottoli, E. Sellen, and K. A. Crawford (2009), Sediment record from the western Arctic Ocean with an improved Late Quaternary age resolution: HOTRAX core HLY0503-8JPC, Mendeleev Ridge, Global Planet. Change, 68, 18-29, doi:10.1016/j.gloplacha. 2009.03.026.
2. Backman, J., M. Jakobsson, R. Løvlie, L. Polyak, and L. A. Febo (2004), Is the central Arctic Ocean a sediment starved basin?, Quat. Sci. Rev., 23, 1435-1454, doi:10.1016/ j.quascirev.2003.12.005.
3. Backman, J., et al. (2008), Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge, Paleoceanography, 23, PA1S03, doi:10.1029/2007PA001476.
4. Beske-Diehl, S. J., and W. L. Soroka (1984), Magnetic properties of variably oxidized pillow basalt, Geophys. Res. Lett., 11, 217-220, doi:10.1029/GL011i003p00217.
5. Bleil, U. (1987), Quaternary high latitude magnetostratigraphy, Polar Res., 5, 325-327, doi:10.1111/j.1751-8369.1987. tb00566.x.
6. Channell, J. E. T., and C. Xuan (2009), Self-reversal and apparent magnetic excursions in Arctic sediments, Earth Planet. Sci. Lett., 284, 124-131, doi:10.1016/j.epsl.2009. 04.020.
7. Clark, D. L., R. R. Whitman, K. A. Morgan, and S. D. Mackay (1980), Stratigraphy and glacial-marine sediments of the basin, central Arctic Ocean, Spec. Pap. Geol. Soc. Am., 181, 1-57.
8. Clark, D. L., J.-S. Vincent, G. A. Jones, and W. A. Morris (1984), Correlation of marine and continental glacial and interglacial events, Arctic Ocean and Banks Island, Nature, 311, 147-149, doi:10.1038/311147a0.
9. Darby, D. A., J. F. Bischof, and G. A. Jones (1997), Radiocarbon dating of depositional regimes in the western Arctic Ocean, Deep Sea Res., Part II, 44, 1745-1757, doi:10.1016/ S0967-0645(97)00039-48
10. Doubrovine, P. V., and J. A. Tarduno (2004), Self-reversed magnetization carried by titanomaghemite in oceanic basalts, Earth Planet. Sci. Lett., 222, 959-969, doi:10.1016/ j.epsl.2004.04.009.
11. Doubrovine, P. V., and J. A. Tarduno (2005), On the compositional field of self-reversing titanomaghemite: Constraints from Deep Sea Drilling Project Site 307, J. Geophys. Res., 110, B11104, doi:10.1029/2005JB003865.
12. Doubrovine, P. V., and J. A. Tarduno (2006a), Alteration and self-reversal in oceanic basalts, J. Geophys. Res., 111, B12S30, doi:10.1029/2006JB004468.
13. Doubrovine, P. V., and J. A. Tarduno (2006b), N-type magnetism at cryogenic temperatures in oceanic basalt, Phys. Earth Planet. Inter., 157, 46-54, doi:10.1016/j.pepi.2006.03.002.
14. Dunlop, D. J., and O. Özdemir (1997), Rock Magnetism: Fundamentals and Frontiers, 573 pp., Cambridge Univ. Press, New York.
15. Egli, R. (2003), Analysis of the field dependence of remanent magnetization curves, J. Geophys. Res., 108(B2), 2081, doi:10.1029/2002JB002023.
16. Gubbins, D. (1999), The distinction between geomagnetic excursions and reversals, Geophys. J. Int., 137, F1-F3, doi:10.1046/j.1365-246x.1999.00810.x.
17. Herman, Y. (1974), Arctic Ocean sediments, microfauna, and the climatic record in late Cenozoic time, in Marine Geology and Oceanography of the Arctic Seas, edited by Y. Herman, pp. 283-348, Springer, Berlin.
18. Heslop, D., M. J. Dekkers, P. P. Kruiver, and I. H. M. van Oorschot (2002), Analysis of isothermal remanent magnetization acquisition curves using the expectation-maximization algorithm, Geophys. J. Int., 148, 58-64, doi:10.1046/j.0956- 540x.2001.01558.x.
19. Heslop, D., G. McIntosh, and M. Dekkers (2004), Using time and temperature dependant Preisach models to investigate the limitations of modelling isothermal remanent magnetisation curves with cumulative log Gaussian functions, Geophys. J. Int., 157, 55-63, doi:10.1111/j.1365-246X.2004.02155.x.
20. Hunkins, K., A. W. H. Bé, N. D. Opdyke, and G. Mathieu (1971), The Late Cenozoic history of the Arctic Ocean, in The Late Cenozoic Glacial Ages, edited by K. K. Turekian, pp. 215-237, Yale Univ. Press, New Haven, Conn.
21. Jakobsson,M., R. Løvlie, H. Al-Hanbali, E. Arnold, J. Backman, and M. Mörth (2000), Manganese and color cycles in Arctic Ocean sediments constrain Pleistocene chronology, Geology, 28, 23-26, doi:10.1130/0091- 7613(2000)28 2.0.CO;2.
22. Jakobsson, M., J. Backman, A. Murray, and R. Løvlie (2003), Optically Stimulated Luminescence dating supports central Arctic Ocean cm-scale sedimentation rates, Geochem. Geophys. Geosyst., 4(2), 1016, doi:10.1029/2002GC000423.
23. Jakobsson, M., R. Macnab, M. Mayer, R. Anderson, M. Edwards, J. Hatzky, H.-W. Schenke, and P. Johnson (2008), An improved bathymetric portrayal of the Arctic Ocean: Implications for ocean modeling and geological, geophysical and oceanographic analyses, Geophys. Res. Lett., 35, L07602, doi:10.1029/ 2008GL033520.
24. Kaufman, D. S., L. Polyak, R. Adler, J. E. T. Channell, and C. Xuan (2008), Dating late Quaternary planktonic foraminifer Neogloboquadrina pachyderma from the Arctic Ocean by using amino acid racemization, Paleoceanography, 23, PA3224, doi:10.1029/2008PA001618.
25. Kirschvink, J. L. (1980), The least squares lines and plane analysis of paleomagnetic data, Geophys. J. R. Astron. Soc., 62, 699-718.
26. Krása, D., and J. Matzka (2007), Inversion of titanomaghemite in oceanic basalt during heating, Phys. Earth Planet. Inter., 160, 169-179, doi:10.1016/j.pepi.2006.11.004.
27. Krása, D., V. P. Shcherbakov, T. Kunzmann, and N. Petersen (2005), Self-reversal of remanent magnetization in basalts due to partially oxidized titanomagnetites, Geophys. J. Int., 162, 115-136, doi:10.1111/j.1365-246X.2005. 02656.x.
28. Kruiver, P. P., M. J. Dekkers, and D. Heslop (2001), Quantification of magnetic coercivity components by the analysis of acquisition curves of isothermal remanent magnetisation, Earth Planet. Sci. Lett., 189, 269-276, doi:10.1016/S0012- 821X(01)00367-373
29. Laj, C., and J. E. T. Channell (2007), Geomagnetic excursions, in Treatise on Geophysics, vol.5, edited by G. Schubert, pp. 373-416, Elsevier, Amsterdam.
30. Løvlie, R., B. Markussen, H. P. Sejrup, and J. Thiede (1986), Magnetostratigraphy in three Arctic Ocean sediment cores; arguments for magnetic excursions within oxygen isotope stage 2-3, Phys. Earth Planet. Inter., 43, 173-184, doi:10.1016/0031-9201(86)90084-1.
31. Marshall, M., and A. Cox (1972), Magnetic changes in pillow basalt due to sea-floor weathering, J. Geophys. Res., 77, 6459-6469, doi:10.1029/ JB077i032p06459.
32. Morris, T. H., D. L. Clark, and S. M. Blasco (1985), Sediments of the Lomonosov Ridge and Makarov Basin: A Pleistocene stratigraphy for the North Pole, Geol. Soc. Am. Bull., 96, 901-910, doi:10.1130/0016-7606(1985)96 2.0.CO;2.
33. Moskowitz, B. M. (1980), Theoretical grain size limits for single-domain, pseudo-single-domain and multi-domain behavior in titanomagnetite (x = 0.6) as a function of lowtemperature oxidation, Earth Planet. Sci. Lett., 47, 285-293, doi:10.1016/0012-821X(80)90045-X.
34. Nishitani, T., and M. Kono (1983), Curie temperature and lattice constant of oxidized titanomagnetite, Geophys. J. R. Astron. Soc., 74, 585-600.
35. Nowaczyk, N. R., and M. Baumann (1992), Combined highresolution magnetostratigraphy and nannofossil biostratigraphy for late Quaternary Arctic Ocean sediments, Deep Sea Res., Part A, 39, S567-S601, doi:10.1016/S0198- 0149(06)80021-X. Nowaczyk, N. R., T. W. Frederichs, H. Kassens, N. Nørgaard-
36. Pedersen, R. F. Spielhagen, R. Stein, and D. Weiel (2001), Sedimentation rates in the Makarov Basin, central Arctic Ocean: A paleomagnetic and rock magnetic approach, Paleoceanography, 16, 368-389, doi:10.1029/2000PA000521.
37. O'Regan, M., J. King, J. Backman, M. Jakobsson, H. Pälike, K. Moran, C. Heil, T. Sakamoto, T. M. Cronin, and R. W. Jordan (2008), Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge, Paleoceanography, 23, PA1S19, doi:10.1029/2007PA001551.
38. O'Reilly, W. (1983), The identification of titanomaghemites: Model mechanisms for the maghemitization and inversion processes and their magnetic consequences, Phys. Earth Planet. Inter., 31, 65-76, doi:10.1016/0031-9201(83) 90067-5.
39. O'Reilly, W., and S. K. Banerjee (1966), Oxidation of titanomagnetites and self-reversal, Nature, 211, 26-28, doi:10.1038/211026a0.
40. Özdemir, Ö . (1987), Inversion of titanomaghemites, Phys. Earth Planet. Inter., 46, 184-196, doi:10.1016/0031- 9201(87)90181-90186
41. Özdemir, Ö., and S. K. Banerjee (1981), An experimental study of magnetic viscosity in synthetic monodomain titanomaghemites: Implications for the magnetization of the ocean crust, J. Geophys. Res., 86, 11,864-11,868, doi:10.1029/ JB086iB12p11864.
42. Özdemir, Ö., and D. J. Dunlop (2010), Hallmarks of maghemitization in low-temperature remanence cycling of partially oxidized magnetite nanoparticles, J. Geophys. Res., doi:10.1029/2009JB006756, in press.
43. Özdemir, Ö ., and W. O'Reilly (1982), Magnetic hysteresis properties of synthetic monodomain titanomaghemites, Earth Planet. Sci. Lett., 57, 437-447, doi:10.1016/0012- 821X(82)90162-90165
44. Özdemir, Ö ., D. J. Dunlop, and B. M. Moskowitz (1993), The effect of oxidation on the Verwey transition in magnetite, Geophys. Res. Lett., 20, 1671-1674, doi:10.1029/ 93GL01483.
45. Petersen, N., and H. Vali (1987), Observation of shrinkage cracks in ocean floor titanomagnetites, Phys. Earth Planet. Inter., 46, 197-205, doi:10.1016/0031-9201(87)90182-8.
46. Phillips, R. L., and A. Grantz (1997), Quaternary history of sea ice and paleoclimate in the Amerasia basin, Arctic Ocean, as recorded in the cyclical strata of Northwind ridge, Geol. Soc. Am. Bull., 109, 1101-1115, doi:10.1130/0016-7606(1997)1092.3.CO;2.
47. Polyak, L., et al. (2009), Quaternary stratigraphy and sedimentation patterns in the western Arctic Ocean, Global Planet. Change, 68, 5-17, doi:10.1016/j.gloplacha.2009.03.014.
48. Poore, R. Z., R. L. Phillips, and H. J. Rieck (1993), Paleoclimate record for Northwind Ridge, western Arctic Ocean, Paleoceanography, 8, 149-159, doi:10.1029/93PA00146.
49. Readman, P. W., and W. O'Reilly (1972), Magnetic properties of oxidized (cation deficient) titanomagnetites (Fe, Ti, 5)3O4, J. Geomagn. Geoelectr., 24, 69-90.
50. Roberts, A. P., and M. Winklhofer (2004), Why are geomagnetic excursions not always recorded in sediments? Constraints from post-depositional remanent magnetization lock-in modeling, Earth Planet. Sci. Lett., 227, 345-359, doi:10.1016/j.epsl.2004.07.040.
51. Robertson, D. J., and D. E. France (1994), Discrimination of remanence-carrying minerals in mixtures, using isothermal remanent magnetisation acquisition curves, Phys. Earth Planet. Inter., 82, 223-234, doi:10.1016/0031-9201(94)90074-4.
52. Ryall, P. J. C., J. M. Hall, J. Clark, and T. Milligan (1977), Magnetization of oceanic crustal layer 2-Results and thoughts after DSDP Leg37, Can. J. Earth Sci., 14, 684-706.
53. Sejrup, H. P., H. M. Gifford, J. Brigham-Grette, R. Løvlie, and D. Hopkins (1984), Amino acid epimerization implies rapid sedimentation rates in Arctic Ocean cores, Nature, 310, 772-775, doi:10.1038/310772a0.
54. Spielhagen, R. F., et al. (1997), Arctic Ocean evidence for Late Quaternary initiation of northern Eurasian ice sheets, Geology, 25, 783-786, doi:10.1130/0091-7613(1997)0252.3.CO;2.
55. Spielhagen, R. F., K. H. Baumann, H. Erlenkeuser, N. R. Nowaczyk, N. Nøorgaard-Pedersen, C. Vogt, and D. Weiel (2004), Arctic Ocean deep-sea record of northern Eurasian ice sheet history, Quat. Sci. Rev., 23, 1455-1483, doi:10.1016/j.quascirev.2003.12.015.
56. Steuerwald, B. A., D. L. Clark, and J. A. Andrew (1968), Magnetic stratigraphy and faunal patterns in Arctic Ocean sediments, Earth Planet. Sci. Lett., 5, 79-85, doi:10.1016/ S0012-821X(68)80018-80024
57. Verhoogen, J. (1956), Ionic ordering and self-reversal in impure magnetites, J. Geophys. Res., 61, 201-209, doi:10.1029/JZ061i002p00201.
58. Verhoogen, J. (1962), Oxidation of iron-titanium oxides in igneous rocks, J. Geol., 70, 168-181, doi:10.1086/626806.
59. Witte, W. K., and D. V. Kent (1988), Revised magnetostratigraphies confirm low sedimentation rates in Arctic Ocean cores, Quat. Res., 29, 43 - 53, doi:10.1016/0033- 5894(88)90070-90071
60. Xu, W., D. R. Peacor, W. A. Dollase, R. Van Der Voo, and R. Beaubeuf (1997), Transformation of titanomagnetite to titanomaghemite: A slow, two-step, oxidation-ordering process in MORB, Am. Mineral., 82, 1101-1110.