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Discordant 14C Ages from Buried Tidal-Marsh Soils in the Cascadia Subduction Zone, Southern Oregon Coast

Published online by Cambridge University Press:  20 January 2017

Alan R. Nelson
Alan R. Nelson*
Affiliation:
U.S. Geological Survey, MS 966, P.O. Box 25046, Denver, Colorado 80225 USA
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Abstract

Peaty, tidal-marsh soils interbedded with estuarine mud in late Holocene stratigraphic sequences near Coos Bay, Oregon, may have been submerged and buried during great (M > 8) subduction earthquakes, smaller localized earthquakes, or by nontectonic processes. Radiocarbon dating might help distinguish among these alternatives by showing that soils at different sites were submerged at different times along this part of the Cascadia subduction zone. But comparison of conventional 14C ages for different materials from the same buried soils shows that they contain materials that differ in age by many hundreds of years. Errors in calibrated soil ages represent about the same length of time as recurrence times for submergence events (150–500 yr)—this similarity precludes using conventional 14C ages to distinguish buried soils along the southern Oregon coast. Accelerator mass spectrometer 14C ages of carefully selected macrofossils from the tops of peaty soils should provide more precise estimates of the times of submergence events.

Type
Research Article
Information
Quaternary Research , Volume 38 , Issue 1 , July 1992 , pp. 74 - 90
Copyright
University of Washington

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References

Adams, J. Paleoseismicity of the Cascadia subduction zone—Evidence from turbidites off the Oregon-Washington margin Tectonics 9 1990 569 583 CrossRefGoogle Scholar
Allen, E.A.D. Petrology and Stratigraphy of Holocene Coastal-Marsh Deposits along the Western Shore of Delaware Bay Unpublished Ph.D. dissertation 1978 Dept. of Geology, University of Delaware Newark, DE Google Scholar
Allen, J.R.L. Salt-marsh growth and stratification—A numerical model with special reference to the Severn Estuary, southwest Britain Marine Geology 95 1990 77 96 CrossRefGoogle Scholar
Ando, M. Source mechanisms and tectonic significance of historical earthquakes along the Nankai Trough, Japan Tectonophysics 27 1975 119 140 CrossRefGoogle Scholar
Atwater, B.F. Evidence for great Holocene earthquakes along the outer coast of Washington State Science 236 1987 942 944 CrossRefGoogle ScholarPubMed
Atwater, B.F. Geologic studies for seismic zonation for the Puget lowland Jacobson, M.L. Rodriquez, T.R. National Earthquake Hazards Reduction Program, Summaries of Technical Reports XXV U.S. Geological Survey Open-File Report 88-16 1988 120 133 Google Scholar
Atwater, B. F. (In press). Coastal evidence for great earthquakes in western Washington. In “Earthquake Hazards in the Pacific Northwest of the United States” (Rogers, A. M. Walsh, T. J. Kockelman, W. J., and Priest, G. R., Eds.). U.S. Geological Survey Professional Paper 1560.Google Scholar
Atwater, B.F. Stuiver, M. Precise 14C ages for sudden Holocene submergence in Washington Geological Society of America Abstracts with Programs 23 2 1991 4 Google Scholar
Atwater, B.F. Yamaguchi, D.K. Sudden, probably coseismic submergence of Holocene trees and grass in coastal Washington State Geology 19 1991 706 709 2.3.CO;2>CrossRefGoogle Scholar
Behre, K.-E. Analysis of botanical macroremains van de Plassche, O. Sea-Level Research—A Manual for the Collection and Evaluation of Data 1986 Geo Books Norwich, UK 413 434 Google Scholar
Belknap, D.F. Shipp, R.C. Stuckenrath, Robert Kelley, J.T. Borns, H.W. Jr. Holocene sea-level change in coastal Maine Anderson, W.A. Borns, H.W. Jr. Neotectonics of Maine-Studies in Seismicity, Crustal Warping, and Sea-Level Change Maine Geological Survey Bulletin 40 1989 85 105 Google Scholar
Bender, M.M. Variations in the 13C/12C ratios of plants in relation to the pathway of photosynthetic carbon dioxide fixation Radiocarbon 10 1971 1239 1244 Google Scholar
Berryman, K.R. Ota, Y. Hull, A.G. Holocene paleoseismicity in the fold and thrust belt of the Hikurangi subduction zone, eastern North Island, New Zealand Tectonophysics 163 1989 185 195 CrossRefGoogle Scholar
Birks, H.J.B. Birks, H.H. Quaternary Palaeocology 1980 University Park Press Baltimore, MD Google Scholar
Cifuentes, I.L. The 1960 Chilean earthquakes Journal of Geophysical Research 94 1989 665 680 CrossRefGoogle Scholar
Clark, J.S. Patterson, W.A.I. The development of a tidal marsh: Upland and oceanic influence Ecological Monographs 55 1985 189 217 CrossRefGoogle Scholar
Clarke, S.H. Jr. Field, M.E. Hirozawa, C.A. Reconnaissance Geology and Geologic Hazards of the Offshore Coos Bay Basin, Oregon. U.S. Geological Survey Bulletin 1645 1985 Google Scholar
Cwynar, L.C. Watts, W.A. Acceleratormass spectrometer ages for late-glacial events at Ballybetagh, Ireland Quaternary Research 31 1989 377 380 CrossRefGoogle Scholar
Darienzo, M.E. Peterson, C.D. Episodic tectonic subsidence of late Holocene salt marshes, northern Oregon coast, central Cascadia margin, U.S.A. Tectonics 9 1990 1 22 CrossRefGoogle Scholar
Davis, J.C. 2nd ed. Statistics and Data Analysis in Geology 1986 Wiley New York Google Scholar
Eyles, N. Eyles, C.H. Miall, A.D. Lithofacies types and vertical profile models—An alternative approach to the description and environmental interpretation of glacial diamict and diamictite sequences Sedimentology 30 1983 393 410 CrossRefGoogle Scholar
Frey, R.W. Basan, P.B. Coastal salt marshes Davis, R.A. Jr. Coastal Sedimentary Environments 1985 Springer-Verlag New York 225 302 Google Scholar
Geyh, M.A. Holocene sea-level history: Case study of the statistical evaluation of 14C dates Radiocarbon 22 1980 695 704 CrossRefGoogle Scholar
Geyh, M.A. Benzler, J.-H. Roeschmann, G. Problems of dating Pleistocene and Holocene soils by radiometric methods Yaalon, D.H. Paleopedology—Origin, Nature and Dating of Paleosols 1971 Israel University Press Jerusalem, Israel 63 75 Google Scholar
Grant, W.C. More evidence from tidal-marsh stratigraphy for multiple late Holocene subduction earthquakes along the northern Oregon coast Geological Society of America Abstracts with Programs 21 5 1989 86 Google Scholar
Grant, W.C. Atwater, B.F. Carver, G.A. Darienzo, M.E. Nelson, A.R. Peterson, C.D. Vick, G.S. Radiocarbon dating of late Holocene coastal subsidence above the Cascadia subduction zone—Compilation for Washington, Oregon, and northern California EOS, Transactions of the American Geophysical Union 70 43 1989 1331 Google Scholar
Heaton, T.H. Hartzell, S.H. Earthquake hazards on the Cascadia subduction zone Science 236 1987 162 168 CrossRefGoogle ScholarPubMed
Kaye, C.A. Barghoorn, E.S. Late Quaternary sea-level change and crustal rise at Boston, Massachusetts with a note on the autocompaction of peat Geological Society of America Bulletin 75 1964 63 80 CrossRefGoogle Scholar
Kelsey, H.M. Late Quaternary deformation of marine terraces on the Cascadia Subduction Zone near Cape Blanco, Oregon Tectonics 9 1990 983 1014 CrossRefGoogle Scholar
Kidson, C. Sea-level changes in the Holocene Quaternary Science Reviews 1 1982 121 151 CrossRefGoogle Scholar
Long, A. A quality assurance protocol for radiocarbon dating laboratories Radiocarbon 32 1990 109 112 CrossRefGoogle Scholar
Matsuda, T. Ota, Y. Ando, M. Yonekura, N. Fault mechanism and recurrence time of major earthquakes in southern Kanto district, Japan, as deduced from coastal terrace data Geological Society of America Bulletin 89 1978 1610 1618 2.0.CO;2>CrossRefGoogle Scholar
Matthews, J.A. Some problems and implications of 14C dates from podzol buried beneath an end moraine at Haugabreen, southern Norway Geografiska Annaler 62A 1980 185 208 Google Scholar
McInelly, G.W. Kelsey, H.M. Late Quaternary tectonic deformation in the Cape Arago-Bandon region of coastal Oregon as deduced from wave-cut platforms Journal of Geophysical Research 95 B5 1990 6699 6713 CrossRefGoogle Scholar
Miall, A.D. A review of the braided river depositional environment Earth Science Reviews 13 1977 1 62 CrossRefGoogle Scholar
Mook, W.G. van de Plassche, O. Radiocarbon dating van de Plassche, O. Sea-Level Research—A Manual for the Collection and Evaluation of Data 1986 Geo Books Norwich, UK 525 560 Google Scholar
Muhs, D.R. Kelsey, H.M. Miller, G.H. Kennedy, G.L. Whelan, J.F. McInelly, G.W. Age estimates and uplift rates for late Pleistocene marine terraces: Southern Oregon portion of the Cascadia forearc Journal of Geophysical Research 95 B5 1990 6685 6698 CrossRefGoogle Scholar
Nelson, A. R. (In press). Holocene tidal-marsh stratigraphy in south-central Oregon—Evidence for localized sudden submergence in the Cascadia subduction zone. In “Quaternary Coasts of the United States: Marine and Lacustrine Systems” (Fletcher, C. P., and Wehmiller, J. F., Eds.), Society for Sedimentary Geology Special Publication no. 48, Tulsa, Oklahoma.Google Scholar
Nelson, A. R., and Personius, S. F. (In press). The potential for great earthquakes in Oregon and Washington—An overview of recent coastal geologic studies and their bearing on segmentation of Holocene ruptures, central Cascadia subduction zone. In “Earthquake Hazards in the Pacific Northwest of the United States” (Rogers, A. M. Walsh, T. J. Kockelman, W. J., and Priest, G. R., Eds.). U. S. Geological Survey Professional Paper 1560.Google Scholar
Nelson, R.E. Carter, L.D. Robinson, S.W. Anomalous radiocarbon ages from a Holocene detrital organic lens in Alaska and their implications for radiocarbon dating and paleoenvironmental reconstructions in the Arctic Quaternary Research 29 1988 66 71 CrossRefGoogle Scholar
Olsson, I.U. Content of 14C in marine mammals from northern Europe Radiocarbon 22 1980 662 675 CrossRefGoogle Scholar
Peterson, C.D. Darienzo, M.E. Episodic abrupt tectonic subsidence recorded in late Holocene deposits of the South Slough syncline—An on-land expression of shelf fold belt deformation from the southern Cascadia margin Geological Society of America Abstracts with Programs 21 5 1989 129 Google Scholar
Peterson, C. D., and Darienzo, M. E. (In press). Discrimination of climatic, oceanic, and tectonic forcing of marsh burial events from Alsea Bay, Oregon, U.S.A. In “Earthquake Hazards in the Pacific Northwest of the United States” (Rogers, A. M. Walsh, T. J. Kockelman, W. J., and Priest, G. R., Eds.). U.S. Geological Survey Professional Paper 1560.Google Scholar
Plafker, G. Tectonics of the March 27, 1964 Alaska Earthquake 1969 U.S. Geological Survey Professional Paper 543-I Google Scholar
Plafker, G. Alaskan earthquake of 1964 and Chilean earthquake of 1960—Implications for arc tectonics Journal of Geophysical Research 77 1972 901 924 CrossRefGoogle Scholar
Plafker, G. Lajoie, K. R., and Rubin, M. (In press). Determining the recurrence intervals of great subduction zone earthquakes in southern Alaska by radiocarbon dating. In “Radiocarbon after Four Decades” (Taylor, R. E. Long, A., and Kra, R., Eds.). Springer-Verlag, New York.Google Scholar
Rogers, G.C. An assessment of the megathrust earthquake potential of the Cascadia subduction zone Canadian Journal of Earth Sciences 25 1988 844 852 CrossRefGoogle Scholar
Scott, E.M. Aitchison, T.C. Harkness, D.D. Cook, G.T. Baxter, M.S. An overview of all three stages of the international radiocarbon intercomparison Radiocarbon 32 1990 309 320 CrossRefGoogle Scholar
Shennan, I. Flandrian sea-level changes in the Fenland. I—The geographical setting and evidence of relative sea-level changes Journal of Quaternary Science 1 1986 119 154 CrossRefGoogle Scholar
Streif, H. Barrier islands, tidal flats, and coastal marshes resulting from a relative rise of sea level in East Frisia on the German North Sea coast van der Linden, W.J.M. Cloetingh, S.A.P.L. Kaasschieter, J.P.K. Graff, W.J.E. Vandenberghe, J. van der Gun, J.A.M. Coastal Lowlands—Geology and Geotechnology, Proceedings of the Symposium on Coastal Lowlands 1987 Kluwer Academic Publishers Dordrecht 213 223 Google Scholar
Stuckenrath, R. Radiocarbon: Some notes from Merlin's diary Annals of the New York Academy of Sciences 288 1977 181 188 CrossRefGoogle Scholar
Stuiver, M. Pearson, G.W. Highprecision calibration of the radiocarbon time scale, AD 1950-500 BC Radiocarbon 28 1986 805 838 CrossRefGoogle Scholar
Stuiver, M. Reimer, P.J. A computer program for radiocarbon age calibration Radiocarbon 28 1986 1022 1030 (Rev. 2.0) CrossRefGoogle Scholar
Sutherland, D.G. Dating and associated methodological problems in the study of Quaternary sealevel changes Devoy, R.J.N. Sea Surface Studies—A Global View 1987 Croom Helm London 165 197 Google Scholar
Taylor, R.E. Radiocarbon Dating—An Archaeological Perspective 1987 Academic Press Orlando, FL Google Scholar
Tooley, M.J. Sea-Level Changes in North-west England during the Flandrian Stage 1978 Clarendon Press Oxford, UK Google Scholar
Troels-Smith, J. Characterization of Unconsolidated Sediments Vol. 3 No. 10 1955 Geological Survey of Denmark, Series IV Google Scholar
Valentine, D.W. Carver, G.A. Shivelle, C. Late Holocene stratigraphic evidence for rapid episodic subsidence, Humboldt Bay, California Geological Society of America Abstracts with Programs 22 7 1990 A23 Google Scholar
van de Plassche, O. Sea-level change and water-level movements in the Netherlands during the Holocene Mededelingen rijks geologische dienst 36 1 1982 Google Scholar
van de Plassche, O. Late Holocene sea-level fluctuations on the shore of Connecticut inferred from transgressive and regressive overlap boundaries in salt-marsh deposits Gayes, P.T. Lewis, R.S. Bokuniewicz, H.G. Quaternary Coastal Evolution of Southern New England Journal of Coastal Research 1991 159 179 Special Issue no. 11 Google Scholar
Vick, G.S. Late Holocene Paleoseismicity and Relative Sea Level Changes of the Mad River Slough, Northern Humboldt Bay, California Unpublished M.S. thesis 1988 Dept. of Geology, Humboldt State University Arcata, CA Google Scholar
Ward, G.K. Wilson, S.R. Procedures for comparing and combining radiocarbon age determinations—A critique Archaeometry 20 1978 19 31 CrossRefGoogle Scholar
Yamaguchi, D.K. Woodhouse, C.A. Reid, M.S. Tree-ring evidence for synchronous rapid submergence of the southwestern Washington coast 300 years B.P. EOS, Transactions of the American Geophysical Union 70 43 1989 1332 Google Scholar