Page 47 - TVH 2000 Anniversary Shipwreck Project

Stratigraphy Trench 3 In the north sector W5A (Figure 12, upper) there was a grey mobile silt layer of 300 mm in depth that held wreck derived material. Beneath this was a layer of broken shells in grey sand, with an increased number of finds. Beneath this, at a depth of 550mm was coarse sterile white sand with only the concreted remains of corroding ship fastenings. In the south of trench 3, in sector W8A (Figure 12, lower), sedimentation included a fine layer of mobile grey silt of 50mm to 100mm in thickness which overlay grey mud with sand inclusions 600mm thick. The interface between this and the layer below held a dark organic layer of less than 10mm thickness. Beneath this was a compact sand layer of 120mm that overlay a thin organic layer containing shells and sand, this overlay 300mm of fine grey sand. Beneath this layer was a 50- 100mm layer of white to grey clay that overlay compact golden sand at a depth of 1170mm. W5A W8A 1m 2m 1m The number of artefacts18 and the excellent condition of some of them suggest rapid burial and again reflect personal rather than trade items. These include a pencil (A0231, Photo 11), ducatons with a clear date of 1733 (A0217) together with groups such as 60 lead rolls of three differing sizes (A0220), 18 Dive 90, A0217-237 0m Silt / mud Med. sand & shells W5A W6A W7A W8A 2m Section Figure 12: Stratigraphy trench 3 - 41 - W5B Medium sand Concretion Compact organic Silt & sand pockets W8B Fine sand Clay 0m