The trenching comprised the excavation of five trial trenches, each measuring 30m long by 1.8m wide. The trial trenching exposed a stratigraphic sequence of superficial geology sealed by topsoil. In three of the trenches features containing modern dumped deposits were exposed indicative of modern dumping across the site.
Deborah Leigh (Mon,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: