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Paleohydrological Records from Peat Profiles and Speleothems in Sutherland, Northwest Scotland

Published online by Cambridge University Press:  20 January 2017

Dan J. Charman ,
Chris Caseldine ,
Andy Baker ,
Ben Gearey ,
Jackie Hatton  and
Chris Proctor
Dan J. Charman
Affiliation:
Department of Geographical Sciences, University of Plymouth, Plymouth, Devon, PL4 8AA, United Kingdom, E-mail: [email protected]
Chris Caseldine
Affiliation:
Department of Geography, University of Exeter, Exeter, EX4 4RJ, United Kingdom
Andy Baker
Affiliation:
Department of Geography, University of Newcastle Upon Tyne, NE1 7RU, United Kingdom
Ben Gearey
Affiliation:
Centre for Wetland Archaeology, Department of Geography, University of Hull, HU6 7RX, United Kingdom
Jackie Hatton
Affiliation:
Department of Geography, University of Exeter, Exeter, EX4 4RJ, United Kingdom
Chris Proctor
Affiliation:
Department of Geography, University of Newcastle Upon Tyne, NE1 7RU, United Kingdom
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Abstract

Paleohydrological changes during the late Holocene are inferred from humification, testate amoebae, and pollen evidence from three blanket peat profiles in northwest Scotland. Replicate peat humification records from the Traligill basin share the same patterns of change for a 600-yr period of overlap between 1800 and 2400 cal yr B.P. The shared patterns, inferred from samples with a resolution of 5–13 yr, represent basinwide hydrological changes. In a nearby, but hydrologically separate, area with caves beneath peat, the luminescence emission wavelength measured in two speleothem samples correlated with the humification record in the overlying peat. This correlation implies that speleothem luminescence emission wavelength depends primarily on decay rates in the soils from which drip waters are derived, as long as there is no major change in soil or vegetation. The peat and speleothem records from the cave site further correlate with the peat records from the Traligill basin. Taken together, the records thus represent a regional climatic signal. Peaks in surface wetness replicated in two or more records occur at ca. 2300, 2090, 2030, 1820, 1600, and 1440 cal yr B.P. Further peaks occur at 800, 570, and 115 cal yr B.P. in the humification and stalagmite records that extend to the present day. Correlative changes have been observed, not only in other peat records from Scotland but also in ice accumulation at GISP2. These further correlations imply that precipitation regimes in Scotland and Greenland were in phase during the late Holocene.

Type
Research Article
Information
Quaternary Research , Volume 55 , Issue 2 , March 2001 , pp. 223 - 234
Copyright
University of Washington

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References

Aaby, B., (1976). Cyclic variations in climate over the last 5,500 years reflected in raised bogs. Nature 263, 281–284.Google Scholar
Anderson, D.E., Binney, H.A., Smith, M.A., (1998). Evidence for abrupt climatic change in northern Scotland between 3900 and 3500 calendar years B.P. Holocene 8, 97–103.Google Scholar
Baker, A., Barnes, W.L., Smart, P.L., (1996). Speleothem luminescence intensity and spectral characteristics: Signal calibration and a record of palaeovegetation change. Chemical Geology 130, 65–76.Google Scholar
Baker, A., Barnes, W.L., Smart, P.L., (1997). Stalagmite drip discharge and organic matter fluxes in Lower Cave, Bristol. Hydrological Processes 11, 1541–1555.Google Scholar
Baker, A., Genty, D., Smart, P.L., (1998). High-resolution records of soil humification and paleoclimate change from variations in speleothem luminescence excitation and emission wavelengths. Geology 26, 903–906.Google Scholar
Baker, A., Caseldine, C.J., Gilmour, M.A., Charman, D.J., Proctor, C.J., Hawkesworth, C.J., Phillips, N., (1999). Stalagmite luminescence and peat humification records of palaeomoisture for the last 2,500 years. Earth and Planetary Science Letters 165, 157–162.CrossRefGoogle Scholar
Barber, K. E. (1981)., Peat Stratigraphy and Climatic Change . A Palaeoecological Test of the Theory of Cyclic Peat Bog Regeneration, Balkema, Rotterdam.Google Scholar
Barber, K.E., Chambers, F.M., Maddy, D., Stoneman, R., Brew, J.S., (1994). A sensitive high resolution record of late Holocene climatic change from a raised bog in northern England. The Holocene 4, 198–205.Google Scholar
Blackford, J.J., Chambers, F.M., (1991). Proxy records of climate from blanket mires: Evidence for a Dark Age (1400BP) climatic deterioration in the British Isles. The Holocene 1, 63–67.Google Scholar
Blackford, J.J., Chambers, F.M., (1993). Determining the degree of peat decomposition in peat-based palaeoclimatic studies. International Peat Journal 5, 7–24.Google Scholar
Blackford, J.J., Chambers, F.M., (1995). Proxy climate record for the last 1000 years from Irish blanket peat and a possible link to solar variability. Earth and Planetary Science Letters 133, 145–150.Google Scholar
Bradley, R.S., Jones, P.D., (1993). The Holocene. 3, 367–376.Google Scholar
Chambers, F.M., Barber, K.E., Maddy, D., Brew, J., (1997). A 5500 year proxy-climate and vegetational record from blanket mire at Talla Moss, Borders, Scotland. The Holocene 7, 391–399.CrossRefGoogle Scholar
Charman, D.J., Hendon, D., (2000). Long-term changes in soil water tables over the past 4500 years: Relationships with climate and North Atlantic atmospheric circulation and sea surface temperature. Climatic Change 47, 45–59.Google Scholar
Charman, D.J., Warner, B.G., (1992). Relationship between testate amoebae (Protozoa: Rhizopoda) and microenvironmental parameters on a forested peatland in northeastern Ontario. Canadian Journal of Zoology 70, 2474–2482.Google Scholar
Cuffey, K.M., Clow, G.D., (1997). Temperature, accumulation, and ice sheet elevation in central Greenland through the last deglacial transition. Journal of Geophysical Research 102, 26383–26396.Google Scholar
Cuffey, K.M., Clow, G.D., Alley, R.B., Stuiver, M., Waddington, E.D., Saltus, R.W., (1995). Large Arctic temperature change at the Wisconsin–Holocene glacial transition. Science 270, 455–458.CrossRefGoogle Scholar
Edwards, R.L., Chen, J.H., Wasserburg, G.J., (1986). 238U–234U–230Th–233Th systematics and the precise measurement of time over the past 500,000 years. Earth and Planetary Science Letters 81, 175–192.CrossRefGoogle Scholar
Harrison, J., Clark, G., (1998). The Lochaber raingauge network. Weather 53, 352–357.CrossRefGoogle Scholar
Hendon, D. (1998)., Robustness and Precision of Holocene Palaeoclimatic Records from Peatlands Using Testate Amoebae . Unpublished Ph.D. dissertation, University of Plymouth.Google Scholar
Hendon, D., Charman, D.J., (1997). The preparation of testate amoebae (Protozoa:Rhizopoda) samples from peat. The Holocene 7, 199–205.Google Scholar
Kapsner, W.R., Alley, R.B., Shuman, C.A., Anandakrishnan, S., Grootes, P.M., (1995). Dominant influence of atmospheric circulation on snow accumulation in Greenland over the past 18,000 years. Nature 373, 52–54.CrossRefGoogle Scholar
Line, J.M., ter Braak, C.J.F., Birks, H.J.B., (1994). WACALIB version 3.3—A computer program to reconstruct environmental variables from fossil assemblages by weighted averaging and to derive sample-specific errors of prediction. Journal of Paleolimnology 10, 147–152.Google Scholar
Mann, M.E., Park, J., Bradley, R.S., (1998). Global interdecadal and century-scale climate oscillations during the past five centuries. Nature 378, 266–270.CrossRefGoogle Scholar
Meese, D.A., Gow, A.J., Grootes, P., Mayewski, P.A., Ram, M., Stuiver, M., Taylor, K.C., Waddington, E.D., Zielinski, G.A., (1994). The accumulation record from the GISP2 core as an indicator of climate change throughout the Holocene. Science 266, 1680–1682.Google Scholar
Moore, P. D, Webb, J. A, and Collinson, M. E. (1991)., Pollen Analysis, Blackwell Scientific, Oxford .Google Scholar
Overpeck, J., (1997). Arctic environmental change of the last four centuries. Science 278, 1251–1256.Google Scholar
Shopov, Y.Y., Ford, D.C., Schwarcz, H.P., (1994). Luminescent microbanding in speleothems: High resolution chronology and palaeoclimate. Geology 22, 407–410.2.3.CO;2>CrossRefGoogle Scholar
Stuiver, M., Becker, B., (1993). High-precision calibration of the radiocarbon time scale AD 1950–6000 BC. Radiocarbon 35, 35–65.CrossRefGoogle Scholar
Stuiver, M., Reimer, P.J., (1993). Extended 14C database and revised CALIB3.0 14C age calibration program. Radiocarbon 35, 215–230.Google Scholar
Tallis, J.H., (1995). Climate and erosion signals in British blanket peats: The significance of Racomitrium lanuginosum remains. Journal of Ecology 83, 1021–1030.Google Scholar
Tolonen, K., Warner, B.G., Vasander, H., (1992). Ecology of testaceans (Protozoa: Rhizopoda) in mires in southern Finland: I. Autecology. Archiv für Protistenkunde 142, 119–138.Google Scholar
Vitafinzi, C., (1995). Solar history and palaeohydrology during the last 2 millennia. Geophysical Research Letters 22, 699–702.Google Scholar
Warner, B.G., Charman, D.J., (1994). Holocene soil moisture changes on a peatland in northwestern Ontario based on fossil testate amoebae (Protozoa) analysis. Boreas 23, 270–279.Google Scholar
Woodland, W.A., Charman, D.J., Sims, P.C., (1998). Quantitative estimates of water tables and soil moisture in Holocene peatlands from testate amoebae. The Holocene 8, 261–273.Google Scholar