Microscopic studies of late-Quaternary tephras from Iceland yield a detailed tephrochronology in deposits of the British Isles, where the quantities of volcanic glass employed are much less than those used to construct almost any other late-Quatemary tephrochronology. We summarize improved methods of isolating extremely sparse glass shards for light microscope and electron microprobe analysis and provide major element geochemistry for 20 volcanic glass layers detected in Ireland, including those which comprise an outline historic tephrochronology for Ireland. The paper highlights possible limitations of chronology construction when attempting to separate dated tephras whose major element geochemistries are almost identical. Tephras in other parts of the British Isles and Europe are used, with those in Ireland, to demonstrate further applications of tephrochronology, especially for dating deposits where other dating methods (e.g., radiocarbon) have proved difficult.
Baillie, M.G.L. and Munro, M.A.R.1988: Irish tree-rings, Santorini and volcanic dust veils . Nature322, 344-346 .
2.
Bennett, K.D. , Boreham, S. , Sharp, MJ. and Switsur, V.R.1992: Holocene history of environment, vegetation and human settlement on Catta Ness, Lunnasting, Shetland . Journal of Ecology80, 241-273 .
3.
Bjorck, S. , lngolfsson, O. , Haflidason, H. , Hallsdóttir, M. and Anderson, N. J.1992: Lake Torfadalsvatn: a high resolution record of North Atlantic ash zone I and the last glacial-interglacial environmental changes in Iceland . Boreas21, 15-22 .
4.
Blackford, J.J. , Edwards, KJ. , 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 Holocene2, 260-266 .
5.
Bogaard, C. van den and Schmincke, H-U.2002: Linking the North Atlantic to central Europe: a high resolution Holocene tephrochronological record from Northern Germany . Journal of Quaternary Science, in press.
6.
Charman, D.J. , West, S. and Kelly, A.1995: Environmental change and tephra deposition: the Strath of Kildonan, Northern Scotland . Journal of Archaeological Science22, 799-809 .
7.
Clausen, H.B. and Hammer, C.U.1988: The Laki and Tambora eruptions as revealed in Greenland ice cores from 11 locations . Annals of Glaciology10, 16-21 .
8.
Davies, S.M. , Turney, C.S.M. and Lowe, JJ.2001: Identification and significance of a visible basalt-rich Vedde Ash layer in a Late-glacial sequence on the Isle of Skye, Inner Hebrides, Scotland . Journal of Quatemary Science16, 99-104 .
Dugmore, A.J. and Buckland, P.C.1991: Tephrochronology and late Holocene soil erosion in south Iceland. In Maizels, J.M. and Caseldine, C. , editors, Environmental change in Iceland, past and present, Dordrecht: Academic Publishers , 147-159.
11.
Dugmore, A.J. , Larsen, G. and Newton, AJ.1995: Seven tephra isochrones in Scotland . The Holocene5257-266 .
12.
Dugmore, A.J. , Newton, A.J. and Sugden, D.E.1992: Geochemical stability of fine-grained silicic Holocene tephra in Iceland and Scotland . Journal of Quaternary Science7, 173-183 .
13.
Dwyer, R.B. 1995: Blanket peat initiation and development in N. W. Mayo, Ireland. Unpublished PhD thesis, University of Dublin (Trinity College) (available from author).
14.
Eastwood, W.J. , Pearce, J.G. , Westgate, J.A. and Perkins, W.T.1998: Recognition of Santorini (Minoan) tephra in lake sediments from Golhisar Golu, Southwest Turkey by laser ablation ICP-MS . Journal of Archaeological Science25, 677-687 .
15.
Fiacco, R.J.Jr, Palais, J.M. , Germani, M.S. , Zielinski, G.A. and Mayewski, P.A.1993: Characteristics and possible source of a 1497 AD volcanic ash layer in a Greenland ice core . Quaternary Research39, 267-273 .
16.
Froggatt, P.C. and Lowe, DJ.1990: A review of late Quatemary silicic and some other tephra formations from New Zealand: their stratigraphy, nomenclature, distribution, volume, and age . New Zealand Journal of Geology and Geophysics33, 89-109 .
17.
Haliisson,HI, Einiksson, J- and van Kreveid, S.2000: The tephroch= wontogy ol Icland and the North Atlantic region dunng the Mloftte andt Late Quaternary: a review . Journal of Quaternary Science15, 3-22
18.
Hall, V.A.1998: Conservation and landscape management; a tephra-dated palynological investigation . Review of Palaeobotany and Palynology10359-68 .
19.
Hall, V.A.2000: The documentary and pollen analytical records of the vegetational history of the Irish landscape, AD 200-1650 . Peritia14, 342-371 .
20.
Hall, V.A. and Bunting, L.2000. Tt&odUtd RoJttxa ss.xd{s ofMi t landscapes in the nrteh f rand. In Duy, P. , Edwaxds, D. and Fitzpatrick, E. , editors, Gaelic Ireland c. 1250-c. 1650: land lordship and settlement, Dublin: Four Courts Press , 207-222.
21.
Hall, V.A. , McVicker, S.J. and Pilcher, J.R.1994a: Tephra-linked landscape history around 2310 BC in some sites in Counties Antrim and Down, N. Ireland . Biology and Environment: Proceedings of the Royal Irish Academny94B, 245-253 .
22.
Hall, V.A. , Pilcher, J.R. and McCormac F.G.1993: Tephra-dated low-land landscape history of the north of Ireland, AD 750-1150 . New Phytologist125, 193-202 .
23.
Hall, V.A. , Pilcher, J.R. and McCormac F.G.1994b: Icelandic volcanic ash and the mid-Holocene Scots pine (Pinus sylvestris) decline: no correlation . The Holocene4, 79-78 .
24.
Hall, V.A. , Pileher, J.R. and McVicker, S.J.1994c: Tephra-linked studies and environmental archaeology, with special reference to Ireland . Circaea11, 17-22 .
25.
Holmes, J. 1998:A tephra dated study of vegetation and climate change in the mid-Holocene of north-west Europe. Unpublished PhD thesis, Queen's University, Belfast (available from author).
26.
Hunt, J.B. and Hill, P.G.1993: Tephra geochemistry: a discussion of some persistent analytical problems . The Holocene3, 271-278 .
27.
Kvamme, T. , Mangerud, J. , Furnes, H. and Ruddiman, W.F.1989: Geochemistry of Pleistocene ash zones in cores from the North Atlantic . Norsk Geologisk Tidsskrift69, 251-272 .
28.
Larsen, G. , Dugmore, A.J. and Newton, A.J.1999: Geochemistry of historical age silicic tephras in Iceland . The Holocene9, 463-471 .
29.
Lowe, JJ. and Turney, C.S.M.1997Vedde Ash layer discovered in a small lake basin on the Scottish mainland . Journal of the Geology Society of London154, 605-612 .
30.
Oldfield, F. , Thompson, R. , Crooks, P.R.J. , Gedye, S.J. , Hall, V.A. , Harkness, D.D. , Housley, R.A. , McCormac, F.G. , Newton, AJ. , Pilcher, J.R. , Renberg, I. and Richardson, N.1997: Radiocarbon dating of a recent high-latitude peat profile: Stor Amyran, northern Sweden . The Holocene7, 282-290 .
31.
Palais, J.M. , Germani, M.S. and Zielinski, G.A.1992: Inter-hemispheric transport of volcanic ash from a 1259 AD volcanic eruption to the Greenland and Antarctic ice sheets . Geophysical Research Letters19, 801-804 .
32.
Palais, J.M. , Taylor, K. , Mayewski, P.A. and Grootes, P.1991: Volcanic ash from the 1362 AD Oraefajokull eruption (Iceland) in the Greenland ice sheet . Geophysical Research Letters18, 1241-1244 .
33.
Pilcher, J.R. and Hall, V.A.1992: Towards a tephrochronology for the Holocene of the north of Ireland . The Holocene2, 255-259 .
34.
Pilcher, J.R. and Hall, V.A.1996: Tephrochronological studies in northem England . The Holocene6, 100-105 .
35.
Pilcher, J.R. , Hall, V.A. and McCormac, F.G.1995: Dates of Icelandic volcanic eruptions from tephra layers in Irish peats . The Holocene5, 103-110 .
36.
Pilcher, J.R. , Hall, V.A. and McCormac, F.G.1996: An outline tephrochronology for the north of Ireland . Journal of Quaternary Science11, 485-494 .
37.
Ram, M. and Gayley, R.I.1991: Long-range transport of volcanic ash to the Greenland ice sheet . Nature349, 401-404 .
38.
Rose, N.L. , Golding, P.N.E. and Batterbee, R.W.1996: Selective concentration and enumeration of tephra shards from lake sediment cores . The Holocene6, 243-246 .
39.
Rozanski, K. , Stichler, W. , Rozanski, R. , Scott, E.M. , Beukens, R.P. , Kromer, B. and van der Plicht, J.1992: The IAEA 4C intercomparison exercise 1990. In Long, A. and Kra, R.S., editors, Proceedings of the 14th International 4C Conference , Radiocarbon34, 506-519 .
40.
Thorarinsson, S.1967: The eruption of Hekla in 1947-48. In The eruptions of Hekla in historic times, a tephrochronological study, Reykjavik: Visindafelag Islandinga .
41.
Thorarinsson, S.1981a: The application of tephrochronology in Iceland. In Self, S. , Sparks, R.S.J. , editors, Tephra studies, Dordrecht: Reidel , 109-134.
42.
Thorarinsson, S.1981b: Tepbra s31Wies ai 2pDt; y- WV1 1>M6an' mvw with special reference to lceland In Self, S , Sparks, R.S.J. , editors, Tephra studies, Dordrecht: Reidel , 1-12.
43.
Turney, C.S.M.1998: Extraction of rhyolitic component of Vedde microtephra from minerogenic lake sediments . Journal of Paleolimnology19, 199-206 .
44.
Turney, C.S.M. , Harkness, D.D. and Lowe, J.J.1997: The use of microtephra horizons to correlate Late-glacial sediment successions in Scotland ..oarncd oft Q nraterlay Scate,e2, 525-531 .
45.
Wastegard, S. , Bjork, S. , Possnert, G. and Wohlfarth, B.1998evidence for the occurrence of Vedde Ash in Sweden: radiocarbon and calendar age estimates . Journal of Quaternary Science13, 271-274
46.
Wastegard, S. , Turney, C.S.M. , Lowe, J.J. and Roberts, S.J.2000a: The Vedde Ash in NW Europe: distribution and geochemistry . Boreas291, 72-78 .
47.
Wastegard, S. , Wohlfarth, B. , Subetto, D.A. and Sapelko, T.V.2000b: extending the known distribution of the Younger Dryas Vedde Ash into north-western Russia . Journal of Quaternary Science15, 581-586 .
48.
Wells, C. , Huckerby, E. and Hall, V.A.1997: Midand Late-Holocene vegetation history and tephra studies at Fenton Cottage, Lancashire, UK . Vegetation History and Archaeobotany6, 153-166 .
49.
Zielinski, G.A. , Germani, M.S. , Larsen, G. , Baillie, M.G.L. , Whitlow, S. , Twickler, M.S. and Taylor, K.1995: Evidence of the Eldgji (Iceland) eruption in the GISP2 Greenland ice core: relationship to eruption processes and climatic conditions in the tenth century . The Holocene5129-140 .
50.
Zielinski, G.A. , Mayewski, P.A. , Meeker, L.D. , Whitlow, S. , Twickler, M.S. , Morrison, M. , Meese, D.A. , Gow, A.J. and Alley, R.B.1994: Record of volcanism since 7000 BC from the GISP2 Greenland ice core and implications for the volcano-climate system . Science264, 948-952 .
