stonehenge - English Heritage
stonehenge - English Heritage
stonehenge - English Heritage
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015-046 section 1.qxd 6/21/05 4:15 PM Page 14<br />
experienced and how people engaged with it (see Tilley<br />
1994). Following these ideas a team based at Birmingham<br />
University has developed an interactive CD-ROM-based<br />
visualization of the landscape around Stonehenge allowing<br />
journeys through real and imagined worlds (Exon et al. 2001).<br />
FINDING THE ARCHAEOLOGY OF<br />
THE STONEHENGE LANDSCAPE<br />
The investigations and studies carried out to date allow a<br />
general overview of the achievement and potential of a<br />
range of archaeological techniques and major sources which<br />
can be expected to help find out about the archaeology of<br />
the Stonehenge Landscape in future. These are reviewed in<br />
the following sub-sections, starting with non-interventional<br />
approaches. Statistics about the number and extent of<br />
surveys and interventions are taken from the Stonehenge<br />
Landscape GIS (see below).<br />
Ground-based geophysical surveys<br />
Contributed by Andrew David<br />
In recent years, geophysical survey has played a major role in<br />
mapping and unravelling the archaeology of the Stonehenge<br />
Landscape. The applications of geophysical survey in the WHS<br />
were reviewed in 1996 (David and Payne 1997) and a number<br />
of specific recommendations and targets for future work were<br />
proposed (David and Payne 1997, 107–10). That review, and its<br />
proposals, remain substantially unchanged at the present time<br />
of writing and should be a starting point for consideration of<br />
geophysical applications to archaeological research in the<br />
WHS. In the light of experience in the Stonehenge area, the<br />
opportunity is taken here to provide a brief critical overview<br />
together with a much-abbreviated assessment of the further<br />
contributions that these methods can add to a better<br />
understanding of this landscape and its monuments.<br />
At current reckoning, the total area surveyed using<br />
geophysical prospective methods up until 2001 within the<br />
Stonehenge Landscape amounts to 3.1602 square kilometres,<br />
about 2 per cent of the total area (Map B). Of this, 0.6891<br />
square kilometres of surveyed ground lie outside the World<br />
<strong>Heritage</strong> Site, 2.4710 square kilometres inside. This is mostly<br />
magnetometer survey, a substantial proportion of which has<br />
been commissioned as part of the evaluation of the several<br />
options for visitor centres and road corridors. Magnetometer<br />
survey has been the technique of choice, not only because it is<br />
relatively rapid and hence cost-effective, but also because it is<br />
particularly responsive, with proven efficacy for the detection<br />
of features such as pits and ditches on chalkland geology<br />
(Illustration 10). This reputation has been vindicated many<br />
times in the Stonehenge area where, for instance, the Greater<br />
and Lesser Cursus, Coneybury henge, and the interior of<br />
Durrington Walls have all produced distinct magnetic<br />
signatures. At Durrington Walls, no fewer than four new<br />
enclosures and an abundance of pits have been found within<br />
the earthwork enclosure. At Coneybury it was a magnetometer<br />
survey that located the remarkable early Neolithic pit, now<br />
familiarly known in the literature as ‘The Anomaly’.<br />
Earth resistance survey, which is a more time-consuming<br />
method and at the mercy of seasonal variation in soil<br />
moisture, has been applied very sparingly and only on<br />
specific monuments, such as Stonehenge itself, where its<br />
ability to locate pits, ditches, and remnant bank material<br />
was apparent. The method has an advantage over<br />
magnetometry on account of its superior ability to locate<br />
buried megaliths and megalith settings, which is best<br />
Illustration 10<br />
Plot of the results from a<br />
geophysical survey of the<br />
Lesser Cursus in 1993.<br />
[Survey by Alastair Bartlett<br />
for <strong>English</strong> <strong>Heritage</strong>.]<br />
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