Figure 7
Topographic and litho-stratigraphic transect of the former Macquarie River terminal channel and the Terminus Marsh (now abandoned) (a). Location of six sediment cores indicated by triangles and bars showing depth of penetration. Radiocarbon dating (calibrated years BP) and OSL dating (italics) confirms lithofacies interpretation of Holocene marsh clays and underlying Pleistocene muds. (b) sediment texture log of a floodplain core (similar position to the dated core but 200 m downstream) and (c) sediment texture log of the channel bed core. (d) organic matter content by loss-on-ignition of the floodplain core exemplifies the low organic content of all marsh sediments examined. (e) Folk (1974) textural classification of all samples from both cores shown and their lithofacies interpretation. Location of transect C-C’ shown in figure 2.
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Aug17 09