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Figure
1.1
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Aspects of the Quaternary geology and geomorphology of Wales and the Welsh borderland (after Bowen 1977a, 1982b)
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Table
1.1
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Geochronology (age) of Oxygen Isotope Stage boundaries is from Martinson et al. (1987) [back to stage 7], and Imbrie et al. (1984). Specific events are radiocarbon dated at 10, 11, 12, 13, 14 and 17,000 years BP (details in text). The Pennard and Minchin Hole D/L Stages are from Bowen et al. (1985). For chronostratigraphic correlations see Bowen and Sykes (1988), Behre (1989) and Bowen et al. (1989). Sites outside Wales are correlated with Oxygen Isotope Stages as follows - Upton Warren, St Germain II and Odderade (Sub-stage 5a), Chelford, Brörup and St Germain I (Sub-stage 5c) and Stanton Harcourt and Aveley (Stage 7).
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Table
3.1
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Gower chronology (T N George 1932)
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Figure
3.1
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Some proposed ice limits on Gower (from Bowen 1970a; Bowen 1981a, 1981b; Campbell 1984; Bowen et al. 1985
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Figure
3.2
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Quaternary sequence at Hunts Bay (after Bowen and Henry 1984)
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Figure
3.3
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Pleistocene sequence at Bacon Hole Cave (from Currant et al. 1984)
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Table
3.2
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Uranium-series age determinations on stalagmite samples from Bacon Hole
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Figure
3.4
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Pleistocene sequence at Minchin Hole (from Sutcliffe and Currant 1984)
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Figure
3.5
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Quaternary sequence at Eastern Slade and Western Slade (after Bowen and Henry 1984)
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Figure
3.6
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Quaternary sequence at Horton (after Bowen and Henry 1984)
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Figure
3.7
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Quaternary sequence at Rhosili Bay (after Campbell 1984)
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Figure
3.8
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Quaternary sequence at Broughton Bay (after Campbell et al. 1982)
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Figure
4.1
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Quaternary deposits at Ynyslas and Borth Bog (after Godwin 1943)
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Figure
4.2
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Quaternary sequence at Clarach (from Heyworth et al. 1985)
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Figure
4.3
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Pleistocene sequence at Morfa-bychan (after Watson and Watson 1967)
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Figure
5.1
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Drift provinces of South Wales (from Bowen 1970a)
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Figure
5.2
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Some suggested Late Devensian ice limits in South Wales (from Bowen and Henry 1984; Campbell 1984)
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Figure
5.3
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The Gwaun-Jordanston meltwater channel system (from Bowen and Henry 1984)
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Figure
5.4
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The Maesyprior meltwater channel system (after Bowen 1970a)
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Figure
5.5
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The Cledlyn Valley pimgos (after Watson 1971; Watson and Wilson 1978)
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Figure
5.6
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Mynydd Du: principal landforms (after Ellis-Gruffydd 1972; Statham 1976)
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Figure
5.7
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Traeth Mawr: a summary of pollen, lithological and radiocarbon evidence (from Walker 1984)
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Figure
5.8
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Craig Cerrig-gleisiad: a summary of pollen, lithological and radiocarbon evidence (from Walker 1984)
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Figure
5.9
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Quaternary sequence at Cwm Nash (after Evans et al. 1970)
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Figure
6.1
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Cadair Idris: principal landforms (after Watson 1977a)
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Figure
6.2
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Cwm Ystwyth: principal landforms (after Watson 1966; Watson and Watson 1977)
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Figure
6.3
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Llyn Gwernan: a summary of pollen, lithological and radiocarbon evidence (from Lowe et al. 1988)
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Figure
6.4
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Elan Valley Bog: Devensian late-glacial and Holocene sequence (from Moore and Chater 1969a)
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Figure
6.5
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Tregaron Bog: a summary of pollen, lithological and radiocarbon evidence (from Hibbert and Switsur 1976)
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Figure
7.1
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Late Devensian and Late Devensian readvance ice limits (from Bowen 1974, 1977b)
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Figure
7.2
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Quaternary sequence at Dinas Dinlle (from Whittow and Ball 1970)
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Figure
7.3
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Pleistocene sequence at Gwydir Bay (from Saunders 1968d)
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Figure
7.4
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Pleistocene sequence at Porth Oer (from Saunders 1968d)
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Figure
7.5
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Quaternary sequence at Porth Neigwl (from Saunders 1968d)
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Figure
7.6
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Quaternary sequence at Porth Ceiriad (from Whittow and Ball 1970)
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Figure
7.7
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Quaternary sequence at Glanllynnau (after Whittow and Ball 1970; Boulton 1977a)
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Figure
7.8
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Quaternary sequence at Morannedd (from Whittow and Ball 1970)
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Figure
8.1
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Quaternary sequence at Pontnewydd (after Green et al. 1981)
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Figure
8.2
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Snowdon (Yr Wyddfa): principal landforms
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Figure
8.3
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Y Glyderau: principal landforms (after Campbell 1985b)
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Figure
8.4
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Y Carneddau: principal landforms
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Figure
8.5
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Devensian late-glacial and Holocene sequence at Cors Geuallt (after Crabtree 1972)
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