Figure 5
Correlation of facies identified in core Monteith-A to results of CPT08 applying Robertson’s28 SBT. (a) Plotting CPT08 on Robertson’s28 qc/Rf plot and performing a k-medoids clustering analysis reveals six distinct clusters, with sediments of the Monoman Formation identified as clusters M1-M4 and sediments of the Coonambidgal Formation identified as clusters C1-C2. A sub-cluster within cluster C1 (circled in red) comprises drought-affected surficial and shallow sediment. (b) Robertson’s28 SBT provides a description of sediment based on nine zones distinguished through CPT results qc and Rf. (c) Plotting clusters relative to depth facilitates comparison with sedimentary units identified within core Monteith-A (red dashed lines). Sedimentary unit boundaries within core Monteith-A correlate well with the clustering analysis of qc/Rf for CPT08.
