The Archaeology of Britain: An introduction from ... - waughfamily.ca

The Archaeology of Britain: An introduction from ... - waughfamily.ca The Archaeology of Britain: An introduction from ... - waughfamily.ca

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The Lateglacial colonization of Britain • 25 • Figure 2.7 Final Upper Palaeolithic artefacts: 1. curve-backed point with straight proximal truncation; 2. curve-backed point; 3. angle-backed point with oblique basal truncation; 4. piercer; 5. short end-scraper; 6. burin on straight truncation; 7. curve-backed point with additional basal retouch (penknife point). 1–6. Pixie’s Hole; 7. Symonds Yat East Rockshelter. Source. Illustrations by Karen Hughes and Hazel Martingell. Courtesy of the British Museum Analysis of lithic assemblages reveals that they were generally made on smaller raw materials of variable quality. In sites in western Britain, many of the tools are on short blades; the raw material may be of gravel flint and Greensand chert of relatively local origin. The blades tend to display wide, lipped butts; ventral surface features are generally, but not invariably, consistent with a soft stone hammer mode of percussion. The dating of these assemblages is limited to a handful of sites (Table 2.2). At Broken Cavern (Devon), the retouched tools comprise thick-backed blades, similar to those recorded from the upper hearth at Three Holes Cave nearby. An AMS date on an arctic hare bone from the archaeological layer places the occupation at 11,380±120 years BP. AMS dates have also been obtained on a hearth and adjacent occupation area at Pixie’s Hole (Devon), yielding a mean age of c.11,870 years BP (Table 2.2). A broadly similar age may be assigned to the Final Upper Palaeolithic occupation at Mother Grundy’s Parlour, where hearth charcoal has been AMS dated to 11,970± 90 BP. Although both these sites are earlier than Broken Cavern, the dates would place the human activity in all three within the second phase of the Interstadial. A broadly similar pattern of dates has been recorded for comparable Final Palaeolithic material in northern France and the German Rhineland. Of less certain identity are assemblages that contain straight-backed blades and bladelets (lames and lamelles à dos) and shouldered points (pointes à cran), such as those from open-air sites at Hengistbury Head (Dorset) and Brockhill (Surrey). The thermoluminescence dating of burnt flint artefacts from Hengistbury gave a mean of 12,500±1,150 years ago (Barton 1992), but the

• 26 • Nicholas Barton Table 2.3 Selected AMS radiocarbon dates on organic artefacts of the second phase of the Lateglacial Interstadial/ early Younger Dryas. Sources: Apart from references A-C, all the OxA- dates listed here and in Table 2.2 are cited in one of the following datelists published in the journal Archaeometry. AM 3 Archaeometry 28, 1 (1986), 116–125 AM 4 Archaeometry 28, 2 (1986), 206–221 AM 9 Archaeometry 31, 2 (1989), 207–234 AM 10 Archaeometry 32, 1 (1990), 101–108 AM 14 Archaeometry 34, 1 (1992), 141–159 AM 18 Archaeometry 36, 2 (1994), 337–374 AM 22 Archaeometry 38, 2 (1996), 391–415 The calibration method, devised by Weninger, is described in Street et al. 1994, 9–13 wide standard deviation makes the age difficult to interpret. On typological grounds, the assemblages seem to show closest affinity to Federmesser industries on the European mainland, especially in northern France and Belgium, where dates suggest attribution to the last few centuries of the twelfth millennium BP. If correct, this implies a much greater diversity in backed tool forms during the Final Upper Palaeolithic than in the Creswellian. In contrast to the Creswellian, the bone- and antler-work associated with the woodland phase of the Interstadial is more restricted in type. The majority of examples directly dated to this period are uniserial barbed points (Table 2.3). Raw materials and mobility The existence of Final Upper Palaeolithic industries often on short flakes probably reflects different raw material practices from those seen in the Creswellian. In western Britain this is particularly apparent in the assemblages from Three Holes Cave (upper hearth), Broken Cavern and Pixie’s Hole, where the small size of artefacts is largely determined by the variable quality of material selected for knapping. Judging from the surface condition and curvature of the cortical flakes, it seems clear that most of the materials were small cobbles derived from local sources. It is also apparent that the rock was transported to the site in the form of whole cobbles, rather than being reduced elsewhere. In the case of Devon, raw materials of this kind can be localized to gravel exposures within 16 km or less of each of the sites. In other parts of the country, the relationship between size of artefacts and raw material quality may not be so clear-cut. For example, at Symonds Yat East Rockshelter (Gloucestershire), tools made on short flakes and blades were on flint probably imported from up to 80 km away. Even in this case, primary reduction of the small nodules appears to have taken place on site rather than at the point of procurement. Thus, although the potential radius of mobility may sometimes have approached that proposed for the Creswellian, it seems that, in general, Final Upper Palaeolithic groups organized themselves rather differently with regard to lithic raw materials.

• 26 • Nicholas Barton<br />

Table 2.3 Selected AMS radio<strong>ca</strong>rbon dates on organic artefacts <strong>of</strong> the second phase <strong>of</strong> the Lateglacial<br />

Interstadial/ early Younger Dryas.<br />

Sources: Apart <strong>from</strong> references A-C, all the OxA- dates listed here and in Table 2.2 are cited in one<br />

<strong>of</strong> the following datelists published in the journal Archaeometry.<br />

AM 3 Archaeometry 28, 1 (1986), 116–125<br />

AM 4 Archaeometry 28, 2 (1986), 206–221<br />

AM 9 Archaeometry 31, 2 (1989), 207–234<br />

AM 10 Archaeometry 32, 1 (1990), 101–108<br />

AM 14 Archaeometry 34, 1 (1992), 141–159<br />

AM 18 Archaeometry 36, 2 (1994), 337–374<br />

AM 22 Archaeometry 38, 2 (1996), 391–415<br />

<strong>The</strong> <strong>ca</strong>libration method, devised by Weninger, is described in Street et al. 1994, 9–13<br />

wide standard deviation makes the age difficult to interpret. On typologi<strong>ca</strong>l grounds, the<br />

assemblages seem to show closest affinity to Federmesser industries on the European mainland,<br />

especially in northern France and Belgium, where dates suggest attribution to the last few centuries<br />

<strong>of</strong> the twelfth millennium BP. If correct, this implies a much greater diversity in backed tool<br />

forms during the Final Upper Palaeolithic than in the Creswellian.<br />

In contrast to the Creswellian, the bone- and antler-work associated with the woodland phase<br />

<strong>of</strong> the Interstadial is more restricted in type. <strong>The</strong> majority <strong>of</strong> examples directly dated to this<br />

period are uniserial barbed points (Table 2.3).<br />

Raw materials and mobility<br />

<strong>The</strong> existence <strong>of</strong> Final Upper Palaeolithic industries <strong>of</strong>ten on short flakes probably reflects different<br />

raw material practices <strong>from</strong> those seen in the Creswellian. In western <strong>Britain</strong> this is particularly<br />

apparent in the assemblages <strong>from</strong> Three Holes Cave (upper hearth), Broken Cavern and Pixie’s<br />

Hole, where the small size <strong>of</strong> artefacts is largely determined by the variable quality <strong>of</strong> material<br />

selected for knapping. Judging <strong>from</strong> the surface condition and curvature <strong>of</strong> the corti<strong>ca</strong>l flakes, it<br />

seems clear that most <strong>of</strong> the materials were small cobbles derived <strong>from</strong> lo<strong>ca</strong>l sources. It is also<br />

apparent that the rock was transported to the site in the form <strong>of</strong> whole cobbles, rather than being<br />

reduced elsewhere. In the <strong>ca</strong>se <strong>of</strong> Devon, raw materials <strong>of</strong> this kind <strong>ca</strong>n be lo<strong>ca</strong>lized to gravel<br />

exposures within 16 km or less <strong>of</strong> each <strong>of</strong> the sites.<br />

In other parts <strong>of</strong> the country, the relationship between size <strong>of</strong> artefacts and raw material<br />

quality may not be so clear-cut. For example, at Symonds Yat East Rockshelter (Gloucestershire),<br />

tools made on short flakes and blades were on flint probably imported <strong>from</strong> up to 80 km away.<br />

Even in this <strong>ca</strong>se, primary reduction <strong>of</strong> the small nodules appears to have taken place on site<br />

rather than at the point <strong>of</strong> procurement. Thus, although the potential radius <strong>of</strong> mobility may<br />

sometimes have approached that proposed for the Creswellian, it seems that, in general, Final<br />

Upper Palaeolithic groups organized themselves rather differently with regard to lithic raw materials.

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