Langdon, P.G. and Barber, K.E. (2004) Snapshots in time: precise correlations of peat-based proxy climate records in Scotland using mid-Holocene tephras. The Holocene, 14, (1), 21-33. (doi: 10.1191/0959683604hl686rp)
http://eprints.soton.ac.uk/15523/

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Official URL: http://dx.doi.org/10.1191/0959...604hl686rp

Abstract

Mid-Holocene tephra layers have been located and geochemically analysed from seven ombrotrophic bogs in Scotland. The tephras found in these Scottish peats occur as stratigraphically discrete horizons, not visible to the naked eye, and originate from volcanic activity in Iceland. Identifying and geochemically typing the tephra layers can enable precise correlations between sites on regional scales, depending on the spatial extent of the airfall events. Dispersal of both the Glen Garry and Hekla-4 tephras is excellent over Scotland, enabling snapshot views of the past at the time of these tephra depositions. Palaeoecological analyses have also been undertaken on these bogs, providing detailed reconstructions of past changes in bog vegetation and surface wetness, a proxy for past climates. Correlations between the ombrotrophic bogs at the time of the Glen Garry tephra revealed significant differences between the proxy climate records in the north and the south of Scotland, suggesting asynchronous changes between northern Scotland and the rest of Great Britain.

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References in Article

Adams, J., Maslin, M. and Thomas, E. 1999: Sudden climate transitions
during the Quaternary. Progress in Physical Geography 23, 1–36.
Baillie, M.G.L. 1991: Suck in and smear: two related chronological
problems for the 90s. Journal of Theoretical Archaeology 2, 12–16.
Barber, K.E. 1981: Peat stratigraphy and climatic change: a palaeoecological
test of the theory of cyclic peat bog regeneration. Rotterdam:
Balkema.
Barber, K.E., Battarbee, R.W., Brooks, S.J., Eglinton, G., Haworth,
E.Y., OldŽ eld, F., Stevenson, A.C., Thompson, R., Appleby, P., Austin,
W.N. , Cameron, N., Ficken, K.J., Golding, P., Harkness, D.D.,
Holmes, J., Hutchinson, R., Lishman, J. P.,Maddy, D., Pinder, L.C.V.,
Rose, N.L. and Stoneman, R.E. 1999: Proxy records of climate change
in the UK over the last two millennia: documented change and sedimentary
records from lakes and bogs. Journal of the Geological Society 156,
369–80.
Barber, K.E., Chambers, F.M., Maddy, D., Stoneman, R.E. and 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.
Barber, K.E., Dumayne-Peaty, L., Hughes, P.D.M., Mauquoy, D. and
Scaife, R.G. 1998: Replicability and variability of the recent macrofossil
and proxy-climate record from raised bogs: Ž eld stratigraphy and macrofossil
data from Bolton Fell Moss and Walton Moss, Cumbria, England.
Journal of Quaternary Science 13, 515–28.
Barber, K.E., Maddy, D., Rose, N., Stevenson, A.C., Stoneman, R.E.
and Thompson, R. 2000: Replicated proxy-climate signals over the last
2,000 years from two distant peat bogs: new evidence for regional palaeoclimate
teleconnections. Quaternary Science Reviews 19, 481–87.
Barrow, E., Hulme, M. and Jiang, T. 1993: A 1961–90 baseline and
future climate change scenarios for Great Britain and Europe. Part I:
1961–90 Great Britain baseline climatology. University of East Anglia,
Norwich: Climatic Research Unit.
Birse, E.L. 1971: Assessment of climatic conditions in Scotland. 3. Bioclimatic
sub-regions. Aberdeen: Macaulay Institute for Soil Research.
Blackford, J.J. and Chambers, F.M. 1993: Determining the degree of
peat decomposition for peat based palaeoclimatic studies. International
Peat Journal 5, 7–24.
Blackford, J.J., Edwards, K.J., Dugmore, A.J., Cook, G.T. and Buckland,
P.C. 1992: Icelandic volcanic ash and the mid-Holocene Scots pine
(Pinus sylvestris) pollen decline in northern Scotland. The Holocene 2,
260–65.
Blytt, A. 1876: Essay on the immigration of the Norwegian  ora during
alternating rainy and dry periods. Christiana: Cannermeye.
Caseldine, C., Hatton, J., Huber, U., Chiverrell, R. and Woolley, N.
1998: Assessing the impact of volcanic activity on mid-Holocene climate
in Ireland: the need for replicate data. The Holocene 8, 105–11.
Chambers, F.M., Barber, K.E., Maddy, D. and Brew, J. 1997: A 5500-
year proxy-climate and vegetation record from blanket mire at Talla Moss,
Borders, Scotland. The Holocene 7, 391–99.
Charman, D.J. and 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.
Charman, D.J., Hendon, D. and Packman, S. 1999: Multiproxy surface
wetness records from replicate cores on an ombrotrophic mire: implications
for Holocene palaeoclimate records. Journal of Quaternary
Science 14, 451–63.
Charman, D.J., Woodland, W.A. and Hendon, D. 2000: The identiŽ -
cation of testate amoebae (Protozoa: Rhizopoda) from British oligotrophic
peatlands. Quaternary Research Association Technical Guide Number 9.
Chiverrell, R.C. 2001: A proxy record of late Holocene climate change
from May Moss, northeast England. Journal of Quaternary Science 16,
9–29.
Dugmore, A.J. and Newton, A.J. 1992: Thin tephra layers in peat
revealed by X-radiography. Journal of Archaeological Science 19, 163–
70.
Dugmore, A.J., Larsen, G. and Newton, A.J. 1995: Seven tephra isochrones
in Scotland. The Holocene 5, 257–66.
Dugmore, A.J., Newton, A.J., Edwards, K.E., Larsen, G., Blackford,
J.J. and Cook, G.T. 1996: Long-distance marker horizons from smallscale
eruptions: British tephra deposits from the ad 1510 eruption of
Hekla, Iceland. Journal of Quaternary Science 11, 511–16.
Dugmore, A.J., Newton, A.J., Sugden, D.E. and Larsen, G. 1992: Geochemical
stability of Ž ne-grained silicic Holocene tephra in Iceland and
Scotland. Journal of Quaternary Science 7, 173–83.
Dwyer, R.B. and Mitchell, F.J.G. 1997: Investigation of the environmental
impact of remote volcanic activity on north Mayo, Ireland, during the
mid-Holocene. The Holocene 7, 113–18.
Hall, V.A. and Pilcher, J.R. 2002: Late-Quaternary Icelandic tephras in
Ireland and Great Britain: detection, characterization and usefulness. The
Holocene 12, 223–30.
Hall, V.A., Pilcher, J.R. and McCormac, F.G. 1994: Icelandic volcanic
ash and the mid-Holocene Scots pine (Pinus sylvestris) decline in the north
of Ireland: no correlation. The Holocene 4, 79–83.
Hendon, D. 1998: Robustness and precision of Holocene palaeoclimatic
records from peatlands, using testate amoebae analysis. PhD thesis,
University of Plymouth.
Hendon, D., Charman, D.J. and Kent, M. 2001: Palaeohydrological
records derived from testate amoebae analysis from peatlands in northern
England: within-site variability, between-site comparability and palaeoclimatic
implications. The Holocene 11, 127–48.
Hughes, P.D.M., Mauquoy, D., Barber, K.E. and Langdon, P.G. 2000:
Mire development pathways and palaeoclimatic records from a full Holocene
peat archive at Walton Moss, Cumbria, England. The Holocene 10,
465–79.
Hunt, J.B. and Hill, P.G. 1993: Tephra geochemistry: a discussion of
some persistent analytical problems. The Holocene 3, 271–78.
—— 2001: Tephrological implications of beam size – sample-size effects
in electron microprobe analysis of glass shards. Journal of Quaternary
Science 16, 105–17.
Kilian, M.R., van der Plicht, J. and van Geel, B. 1995: Dating raised
bogs: new aspects of AMS 14C wiggle matching, a reservoir effect and
climate change. Quaternary Science Reviews 14, 959–66.
Langdon, P.G. 1999: Reconstructing Holocene climate change in
Scotland utilizing peat stratigraphy and tephrochronology. PhD thesis,
University of Southampton.
Langdon, P.G. and Barber, K.E. 2001: New Holocene tephras and a
proxy climate record from a blanket mire in northern Skye, Scotland.
Journal of Quaternary Science 16, 753–59.
—— 2002: The ‘ad 860’ tephra in Scotland: new data from Langlands
Moss, East Kilbride, Strathclyde. Quaternary Newsletter 97, 11–18.
Langdon, P.G., Barber, K.E. and Hughes, P.D.M. 2003: A 7500 year
peat-based palaeoclimatic reconstruction and evidence for an 1100 year
cyclicity of surface wetness from Temple Hill Moss, Pentland Hills, Southeast
Scotland. Quaternary Science Reviews 22, 259–74.
Larsen, G. and Thorarinsson, S. 1977: H4 and other acidic Hekla tephra
layers. Jo¨kull 27, 28–46.
Larsen, G., Dugmore, A.J. and Newton, A.J. 1999: Geochemistry of
historical age silicic tephras in Iceland. The Holocene 9, 463–71.
Larsen, G., Newton, A.J., Dugmore, A.J. and Vilmundardo´ttir, E.G.
2001: Geochemistry, dispersal, volumes and chronology of Holocene
silicic tephra layers from the Katla volcanic system, Iceland. Journal of
Quaternary Science 16, 119–32.
Le Maitre, R.W. editor, 1989: A classiŽ cation of igneous rocks and
glossary of terms. Oxford: Basil Blackwell.
Lowe, D.J. and Hunt, J.B. 2001: A summary of terminology used in
tephra-related studies. In Raynal, J.-P. and Juvigne, E.T., editors, Tephra:
chronology, archaeology, Les Dossiers de l’Arche´o-Logis 1, 17–22.
Lowe, J.J., Birks, H.H., Brooks, S.J., Coope, G.R., Harkness, D.D.,
Mayle, F.E., Sheldrick, C., Turney, C.S.M. and Walker, M.J.C. 1999:
The chronology of palaeoenvironmental changes during the Last Glacial-
Holocene transition: towards an event stratigraphy for the British Isles.
Journal of the Geological Society 156, 397–410.
Mattsson, S. and Vesanen, R. 1988: Patterns of Chernobyl fallout in
relation to local weather conditions. Environment International 14, 177–
80.
Mauquoy, D. and Barber, K.E. 1999: A replicated 3000 year
proxy-record from Coom Rigg Moss and Felecia Moss, the Border Mires,
northern England. Journal of Quaternary Science 14, 263–75.
Persson, C. 1971: Tephrochronological investigations of peat deposits in
Scandinavia and on the Faroe Islands. Sveriges Geologiska Undersokning
65, 3–34.
Pilcher, J.R. 1991: Radiocarbon dating for the Quaternary scientist. Quaternary
Proceedings 1, 27–33.
Peatlands Special Issue: Records of Holocene climatic change 33
Pilcher, J.R. and Hall, V.A. 1992: Towards a tephrochronology for the
Holocene of the north of Ireland. The Holocene 2, 255–59.
—— 1996: A tephrochronology for the Holocene of the north of England.
The Holocene 6, 100–105.
Pilcher, J.R., Hall, V.A. and McCormac, F.G. 1995: Dates of Holocene
Icelandic volcanic eruptions from tephra layers in Irish peats. The
Holocene 5, 103–10.
—— 1996: An outline tephrochronology for the Holocene of the north of
Ireland. Journal of Quaternary Science 11, 485–94.
Sernander, R. 1908: On the evidence of postglacial changes of climate
furnished by the peat-mosses of northern Europe. Geologiska Fo¨reningens
I Stockholm Fo¨rhhandlingar 30, 465–78.
Speranza, A., van der Plicht, J. and van Geel, B. 2000: Improving the
time control of the Subboreal/Subatlantic transition in a Czech peat
sequence by 14C wiggle-matching. Quaternary Science Reviews 19,
1589–604.
Sweatman, T.R. and Long, J.V.P. 1969: Quantitative electron probe
microanalysis of rock forming minerals. Journal of Petrology 10, 332–79.
Thorarinsson, S. 1967: The tephra-fall from Hekla on March 29th, 1947.
In Einarsson, Th., Kjartansson, G. and Thorarinsson, S., editors, The
eruption of Hekla 1947–1948, Reykjavik: Socientatis Islandica II(3), 1–68.
Woodland,W.A., Charman, D.J. and Sims, P.C. 1998:Quantitative estimates
of water tables and soil moisture in Holocene peatlands from testate
amoebae. The Holocene 8, 261–73.