Stage 4, 5 & 6


Palaeoenvironmental sampling, analysis and dating


Stage 4 involved the acquisition of vibrocores at ten locations within the Area 240. The vibrocores targeted sediment units that would provide palaeoenvironmental material and allow for the assessment, dating and reconstruction of the former land surfaces within Area 240. Assessments were based on the on-going interpretation of geophysical and geotechnical data from Stages 1 and 2.

Samples from four vibrocores were assessed for macro-botanical (plants and charcoal), macro-fauna (molluscs and insects), micro-botanical (pollen, diatoms and micro-charcoal) and micro-fauna (ostracods and foraminifera). Additionally, a series of samples were dated using radiocarbon and Optical Stimulation Luminescence (OSL) dating techniques.