Hostname: page-component-7479d7b7d-m9pkr Total loading time: 0 Render date: 2024-07-11T06:49:23.904Z Has data issue: false hasContentIssue false
  • English
  • Français

500,000-Year Paleomagnetic Record from New Zealand Loess

Published online by Cambridge University Press:  20 January 2017

Brad Pillans  and
Ian Wright
Brad Pillans
Affiliation:
Research School of Earth Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
Ian Wright
Affiliation:
New Zealand Oceanographic Institute, Department of Scientific and Industrial Research, Private Bag, Kilbirnie, Wellington 3, New Zealand
Get access Rights & Permissions [Opens in a new window]

Abstract

A paleomagnetic record of secular variation has been obtained from a 17.4-m-long core drilled from loess in North Island, New Zealand. Three dated rhyolitic tephra occur in the loess core at depths of 1.5, 3.4,and 13.0 m, with ages of 22,500, ≧42,000, and 370,000 years, respectively. The base of the core is estimated to be 500,000 years old, which makes this the longest continuous loess sequence yet described from the Southern Hemisphere. Two periods of anomalously low inclination in the core are correlated with the Mungo Event (ca. 35,000 years ago) and the Emperor Event (ca. 490,000 years ago); the Blake Event (ca. 115,000 years ago) is not recorded.

Type
Articles
Information
Quaternary Research , Volume 33 , Issue 2 , March 1990 , pp. 178 - 187
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barbetti, M. F. McElhinny, M. W. Evidence of a geomagnetic excursion 30,000 years B.P.. Nature (London) 239 1972 327 330 Google Scholar
Barbetti, M. F. McElhinny, M. W. The Lake Mungo geomagnetic excursion. Philosophical Transactions of the Royal Society of London A281 1976 515 542 Google Scholar
Burbank, D. W. Li, J. J. Age and palaeoclimatic significance of the loess of Lanzhou, north China. Nature (London) 316 1985 429 431 Google Scholar
Champion, D. E. Dalrymple, G. B. Kuntz, M. A. Radiometric and paleomagnetic evidence for the Emperor reversed polarity event at 0.46 ± 0.05 m.y. in basalt lava flows from the eastern Snake River Plain, Idaho. Geophysical Research Letters 8 1981 1055 1058 Google Scholar
Coe, R. S. Source models to account for Lake Mungo palaeomagnetic excursion and their implications. Nature (London) 269 1977 49 51 Google Scholar
Collen, J. D. Vella, P. Hautotara, Te Muna and Ahiaruhe Formations, middle to late Pleistocene, Wairarapa, New Zealand. Journal of the Royal Society of New Zealand 14 1984 297 317 CrossRefGoogle Scholar
Cox, A. A paleomagnetic study of secular variation in New Zealand. Earth and Planetary Science Letters 6 1969 257 267 CrossRefGoogle Scholar
Cox, A. Remanent magnetisation and susceptibility of Late Cenozoic rocks from New Zealand. New Zealand Journal of Geology and Geophysics 14 1971 192 207 Google Scholar
Creer, K. M. Geomagnetic variations for the interval 7000–25,000 years B.P. as recorded in a core of sediment from Station 1474 of the Black Sea cruise of “Atlantis II.”. Earth and Planetary Science Letters 23 1974 34 42 Google Scholar
Dunlop, D. J. Magnetic mineralogy of unheated and heated red sediments by coercivity spectrum analysis. Geophysical Journal of the Royal Astronomical Society 27 1972 37 55 CrossRefGoogle Scholar
Fink, J. Kukla, G. J. Pleistocene climates in central Europe: At least 17 interglacials after the Olduvai event. Quaternary Research 7 1977 363 371 CrossRefGoogle Scholar
Froggatt, P. C. Paleomagnetism of Last Glacial loess from two sections in New Zealand Eden, D. N. Furkert, R. J. Loess, Its Distribution, Geology and Soils 1988 A. A. Balkema Rotterdam 59 68 Google Scholar
Hatherton, T. The magnetic properties of the Whakamaru ignimbrites. New Zealand Journal of Science and Technology B35 1954 421 432 Google Scholar
Heller, F. Liu, T. S. Magnetostratigraphical dating of loess deposits in China. Nature (London) 300 1982 431 433 Google Scholar
Heller, F. Liu, T. D. Magnetism of Chinese loess deposits. Geophysical Journal of the Royal Astronomical Society 77 1984 125 141 Google Scholar
Huxtable, J. Aitken, M. J. Thermoluminescent dating of Lake Mungo geomagnetic polarity excursion. Nature (London) 265 1977 40 41 CrossRefGoogle Scholar
Jacobs, J. A. Reversals of the Earth's Magnetic Field 1984 Adam Hilger Bristol Google Scholar
Kennedy, N. M. Late Quaternary loess associated with the Mamaku Plateau, North Island, New Zealand Eden, D. N. Furkert, R. J. Loess, Its Distribution, Geology and Soils 1988 A. A. Balkema Rotterdam 71 80 Google Scholar
Kukla, G. J. Loess stratigraphy of Central Europe Butzer, K. W. Isaac, G. L. After the Australopithecines 1975 Mouton The Hague 99 188 Google Scholar
Kukla, G. Loess stratigraphy in central China. Quaternary Science Reviews 6 1987 191 219 Google Scholar
Kukla, G. Heller, F. Liu, X. M. Xu, Tc, Liu, T. S. An, Z. S. Pleistocene climates in China dated by magnetic susceptibility. Geology 16 1988 811 814 Google Scholar
Lewis, K. B. A storm-dominated inner shelf, western Cook Strait, New Zealand. Marine Geology 31 1979 31 43 Google Scholar
McGlone, M. S. Howorth, R. Pullar, W. A. Late Pleistocene stratigraphy, vegetation and climate of the Bay of Plenty and Gisborne regions, New Zealand. New Zealand Journal of Geology and Geophysics 27 1984 327 350 Google Scholar
Milne, J. D. G. Upper Quaternary geology of the Rangitikei Drainage Basin, North Island, New Zealand. Unpublished Ph.D. dissertation 1973 Victoria University of Wellington Google Scholar
Milne, J. D. G. Smalley, I. J. Loess deposits in the southern part of the North Island of New Zealand: An outline stratigraphy. Acta Geologica Academiae Scientiarium Hungaricae 22 1979 197 204 Google Scholar
Murphy, R. P. Seward, D. Stratigraphy, lithology, paleomagnetism, and fission track ages of some ignimbrite formations in the Matahana Basin, New Zealand. New Zealand Journal of Geology and Geophysics 24 1981 325 331 CrossRefGoogle Scholar
Pillans, B. Upper Quaternary marine terrace chronology and deformation, South Taranaki, New Zealand. Geology 11 1983 292 297 Google Scholar
Pillans, B. Loess chronology in Wanganui Basin, New Zealand Eden, D. N. Furkert, R. J. Loess, its Distribution, Geology and Soils 1988 A. A. Balkema Rotterdam 175 191 Google Scholar
Pillans, B. Holgate, G. McGlone, M. Climate and sea level during Oxygen Isotope Stage 7b: On-land evidence from New Zealand. Quaternary Research 29 1988 176 185 CrossRefGoogle Scholar
Pillans, B. Kohn, B. Rangitawa Pumice: A Widespread(?) Quaternary Marker Bed in Taranaki-Wanganui 1981 94 104 Victoria University of Wellington Geology Department Publication, No. 20 Google Scholar
Ryan, W. B. F. Stratigraphy of Late Quaternary sediments in the Eastern Mediterranean Stanley, D. J. The Mediterranean Sea: A Natural Sedimentation Laboratory 1972 Dowden, Hutchinson and Ross, Inc Stroudsburg 149 169 Google Scholar
Stewart, R. B. Neall, V. E. Pollok, J. A. Syers, J. K. Parent material stratigraphy of an Egmont Loam profile, Taranaki, New Zealand. Australian Journal of Soil Research 15 1977 177 190 Google Scholar
Thomson, R. Oldfield, F. Environmental Magnetism 1986 Allen and Unwin London Google Scholar
Tucholka, P. Fontugne, M. Guichard, F. Paterne, M. The Blake magnetic polarity episode in cores from the Mediterranean Sea. Earth and Planetary Science Letters 86 1987 320 326 Google Scholar
Turner, G. M. Lyons, R. G. A palaeomagnetic secular variation record from c. 120,000 year-old New Zealand cave sediments. Geophysical Journal of the Royal Astronomical Society 87 1986 1181 1192 Google Scholar
Vella, P. Upper Pleistocene succession in the inland part of Wairarapa Valley, New Zealand. Transactions of the Royal Society of New Zealand, Geology 2 1963 63 78 Google Scholar
Verosub, K. L. Geomagnetic excursions: A critical assessment of the evidence as recorded in sediments of the Brunhes Epoch. Philosophical Transactions of the Royal Society of London A306 1982 161 168 Google Scholar
Vucetich, C. G. Howorth, R. Proposed definition of the Kawakawa Tephra, the c. 20,000 B.P. marker horizon in the New Zealand region. New Zealand Journal of Geology and Geophysics 19 1976 43 50 Google Scholar
Wilde, R. H. Vucetich, C. G. Aeolian cover beds of marine terraces in the western Wanganui district, North Island, New Zealand Eden, D. N. Furkert, R. J. Loess, Its Distribution, Geology and Soils 1988 A. A. Balkema Rotterdam 215 232 Google Scholar
Wilson, C. J. N. Switsur, V. R. Ward, A. P. A new 14C age for the Oruanui (Wairakei) eruption, New Zealand. Geological Magazine 125 1988 297 300 Google Scholar
Wilson, D. S. Hey, R. N. The Galapagos axial magnetic anomaly: Evidence for the Emperor event within the Brunhes and for a two-layer magnetic source. Geophysical Research Letters 8 1981 1051 1054 Google Scholar