Tephrostratigraphic investigations of two upland blanket bogs in northern England show that micro scopic layers of tephra are present. Their geochemistry shows that they are identical to two Icelandic tephra layers of known age found at sites in Scotland and the north of Ireland. The work extends the regional tephro chronology of the mid-Holocene for the British Isles.
Bennett, K.D., Boreham, S., Sharp, M.J. and Switzur, V.R.1992: Holocene history of environment, vegetation and human settlement on Catta Ness, Lunnasting, Shetland. Journal of Ecology80, 173-241.
2.
Blackford, J.J., Edwards, K.J., Dugmore, A.J., Cook, G.T. and Buck-land, P.C.1992: Icelandic volcanic ash and the mid-Holocene pine pollen decline in northern Scotland. The Holocene2, 260-65.
3.
Bogaard, van den C., Dorfler, W., Sandgren, P. and Schmincke, H.-U.1994: Correlating the Holocene records: Icelandic tephra found in Schleswig-Holstein (Northern Germany). Naturwissenschaften81, 554-56.
Dugmore, A.J., Larsen, G. and Newton, A.J.1995: Seven tephra isochrones in Scotland. The Holocene5, 257-66.
6.
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 QuaternaryScience7, 173-83.
7.
Einarsson, T.1963: Pollen analytical studies on the vegetation and climatic history of Iceland in late and post-glacial times. In Löve, A. and Löve D., editors, North Atlantic biota and their history, Oxford: Pergamon, 355-65.
8.
Hall, V.A., Pilcher, J.R. and McCormac, F.G.1993: Tephra dated lowland landscape history of the north of Ireland, AD 750-1150. New Phytologist125, 193-202.
9.
— 1994: Icelandic volcanic ash and the mid-Holocene Scots pine (Pinus sylvestris) decline in the north of Ireland: no correlation. The Holocene4, 79-83.
10.
Hall, V.A., Pilcher, J.R. and McVicker, S.J.1994: Tephra-linked studies and environmental archaeology, with special reference to Ireland. Circaea11, 17-22.
11.
Hall, V.A., McVicker, S.J. and Pilcher, J.R.1994: Tephra-linked landscape history around 2310 BC of some sites in Counties Antrim and Down. Biology and Environment: Proceedings of the Royal Irish Academy94B, 245-53.
12.
Hanna, S.1993: Blanket mire initiation in Ireland with special reference to upland sites in Counties Antrim and Donegal. Unpublished PhD thesis, Queen's University, Belfast .
13.
Heiken, G.1974: An atlas of volcanic ash. Smithsonian Contributions to theEarth Sciences12.
14.
Hunt, J.B. and Hill, P.G.1993: Tephra chemistry: a discussion of some persistent analytical problems. The Holocene3, 271-78.
15.
McVicker, S.J.1993: A study of the vegetational history of the Mourne Mountains, County Down, using palynological and tephrochronological techniques. Unpublished PhD thesis, Queen's University, Belfast.
16.
Pearson, G.W. and Stuiver, M.1986: High-precision calibration of the radiocarbon time scale, 500-2500 BC. Radiocarbon28, 839-62.
17.
Pilcher, J.R. and Hall, V.A.1992: Towards a tephrochronology for the Holocene of the north of Ireland. The Holocene2, 255-59.
18.
Pilcher, J.R., Hall, V.A. and McCormac, F.G.1995: Dates of Holocene
19.
eruptions from tephra layers in Irish peats. The Holocene5, 103-10. Stuiver , M. and Pearson, G.W.1986: High-precision calibration of the radiocarbon time scale, AD 1950-500 BC. Radiocarbon28, 805-38.
20.
Sweatman, T.R. and Long, J.V.P.1969: Quantitative electron microprobe analysis of rock forming minerals. Journal of Petrology7, 332-79.
21.
Turner, J. and Hodgson, J.1983: Studies in the vegetational history of the Northern Pennines. III. Variations in the composition of the Mid-Flandrian forests . Journal of Ecology71, 95-118.
22.
— 1991: Studies in the vegetational history of the Northern Pennines. IV. Variations in the composition of the late Flandrian forests and comparisons with those of the early and Mid-Flandrian. New Phytologist117, 165-74.
23.
Westgate, J.A. and Gorton, M.P.1981: Correlation techniques in tephra studies. In Self, S. and Sparks, R.S.J. , editors, Tephra studies. Dordrecht : Reidel, 73-94.
