Ladybridge Farm: Test Pit Survey (Intervention 6)
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A series of 112 hand-excavated trenches (1m x 1m, Intervention 6 ) was undertaken in Zones A, B, D and E. These were designed to investigate possible flint scatters identified during the fieldwalking programme in other zones, as well a potential vertical distribution of that material within the ploughsoil. More particularly, these test pits were positioned within the footprint of evaluation trenches prior to their machine excavation to test for the presence of meaningful lithic distributions in advance of disturbance of large areas of ploughsoil.
As well as the test pits, a series of nine hand-excavated evaluation trenches (3m x 3m) were excavated within Zone C and allocated Interventions 14 to 22. These evaluation trenches were designed to investigate a relative density of lithic material recovered during fieldwalking within Zone C, which was also detected by the VMNLP in 1996 (Field 21). Once ploughsoil had been excavated, the natural subsoil surface in the base of both the hand-excavated test pits and evaluation trenches was cleaned by hand to identify any underlying archaeological features, which may have been the source of the lithic material. The first phase of test pit excavation and the hand-excavated evaluation trenches were undertaken during March 2004, and the second phase of test pits between August and October 2004.
Fieldwork Procedure
The location of each test pit was positioned and marked out using a total station theodolite. Ploughsoil was then excavated in 0.10m spits and each spit allocated a context number. The excavated material was dry sieved through a table sieve fitted with a 10mm mesh (Plate 4). A 10% sample of the excavated material was then passed through a finer hand-held sieve with a 5mm mesh. As it was often difficult to sieve material through the finer mesh, on occasions it was necessary to carefully hand sort the sample. All finds were retained and bagged by context.
Each hand-excavated evaluation trench measured 3.0m x 3.0m and was set-out using a total station theodolite. Each trench was then divided into nine 1.0m squares numbered A to J (I was omitted because of its similarity to the number 1). The northwestern square, Square ‘A’, and the southeastern square, Square ‘J’, of each intervention were then hand-excavated in 0.10m spits. The excavated material was then sieved using the same methodology as that adopted for the test pits spits in order to detect concentrations and vertical distributions of lithic material. If Squares A and J produced lithic material, the central square of each intervention Square E was also hand-excavated in spits. All hand-excavation thereafter was not sieved, but lithic material was hand collected and located by metre square.
Fieldwork Results
A total of 181 finds were recovered from test pit excavation and hand-excavated evaluation trenches. Fifty-one were ceramic, forty-five CBM, seventy-four lithic, eight glass, three metal finds and three bone. In addition, ten items were identified as natural pebbles. With the exception of the lithics and three sherds of pottery, the material can be dated to the post-medieval period and represents background noise from manuring regimes at the site and is not discussed further. The three sherds of pottery were identified as two sherds of Roman oxidised ware pottery from Test Pit 15 and Test Pit 37, and one sherd of very abraded medieval local glazed pottery from Test Pit 4.
Of the lithic material, twenty-seven pieces were recovered from twenty of the 1m x 1m test pits and forty-seven from the 3m x 3m evaluation trenches; ninety-two test pits yielded no lithic material. This material is summarised by location, vertical distribution and identity in Table 3 and by horizontal distribution in Figure 35. In Intervention 6, eleven lithic pieces were recovered from Spit 1, with eight each from Spit 2 and Spit 3. In Interventions 16 to 22, nine lithics were recovered from Spit 1, twenty-eight from Spit 2 and ten from Spit 3. Overall, the vertical distribution appeared to be weighted towards the second spit, although there is no obvious site formation process which might explain this pattern. In addition, the flint collected from the surface, i.e. part of Spit 1, in 1996, and in two fieldwalking campaigns in 2003, will have distorted the vertical distribution of lithics in Spit 1.
There were no examples of lithic concentrations which overlay archaeological features in test pits. Three of the nine hand-excavated evaluation trenches contained features, Intervention 16 to 18 inclusive being F14, F12 and F13 respectively. The distribution of lithics in each square for these interventions was plotted to detect whether the underlying feature may have been the source of the lithic material. Two squares, Square J in both Intervention 16 and Intervention 18, contained four lithic pieces and overlay features. In Intervention 16, the underlying feature also yielded a flint flake during excavation. However, none of these lithics were recovered from Spit 3, i.e. the interface between the feature and ploughsoil, and the feature in Intervention 18 is of suspected geological origin. In addition, Square A in Intervention 16 contained three lithics and did not overlie a feature. The number of lithics recovered is too low for the distribution to be interpreted confidently.
The horizontal distribution was unsurprisingly weighted towards Zone C, where many more lithics were recovered from this area, which has already established lithic concentrations and where a greater amount of ploughsoil was sieved. Nonetheless, when the numbers of lithics recovered from test pits were plotted there were more instances of single pieces being recovered in Zones B, C and D than in A (see Figure 35); no lithic material was recovered from Zone E. In addition, only Zones B, C and D had examples of two lithics recovered from a test pit; Test Pit 19 in Zone D yielded three pieces. The only dateable lithics were two early Bronze Age thumbnail scrapers, both from Zone C.
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