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Large-Scale Structural Map of the Cape Fold Belt Derived by Remote Sensing Analysis
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 11th SAGA Biennial Technical Meeting and Exhibition, Sep 2009, cp-241-00157
Abstract
The presented map shows the geology and structure of the Cape Fold Belt at a scale of 1:600,000. This map was produced to analyze fold structures and fault lineament trends to propose distinct structural domains within the Cape Fold Belt. This map is a first attempt to provide a coherent regional framework into which regional studies could be integrated to link the structures of the Cape Fold Belt to the structures of Gondwanide Fold Belts in South America and Antarctica. Data from Landsat-7, ASTER, SRTM and Air Photos provided the image base for an estimation of fold plunge data (azimuth and dip) and fault lineament data that were correlated with field measurements for accuracy assessment. The map shows that the Cape Fold Belt can be subdivided into six major structural domains. The two structural blocks in the Western Cape Province, separated by the Worcester Fault, show great similarities in fold plunge data. However, more detailed structural data from the field are necessary to characterize the proposed structural domains and to quantify the structural blocks north and south of the Worcester Fault in greater detail.