School of Earth Sciences - Theses

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    Structural geology of the area between Bacchus Marsh and Blackwood
    Lam, Peter W. H. ( 1968)
    Scope of study: This thesis is concerned primarily with the structural geology of the Ordovician basement rocks along the Lerderderg River Gorge and its two main tributaries. Deformation of the Ordovician rocks constituted the fundamental interest that led to the detailed study of structural elements at various scales. Fabric diagrams were widely used in structural of macroscopic structures. Micro-fabric analysis was not applicable because of low grade regional metamorphism and the fine texture of the rocks. A computer programme used in the preparation of the various fabric diagrams greatly increased the efficiency and accuracy of the study of the structural geometry and symmetry of the deformed Ordovician rocks. A brief description is given of the Permian glacial deposits, the Cainozoic alluvial deposits, the Older and Newer Basalts, the quartz veins, and the different types of dykes.