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oa The Agulhas-Karoo Transect Seismic Reflection Profile: Revealing Secrets Under the Southern Karoo Basin of South Africa
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 10th SAGA Biennial Technical Meeting and Exhibition, Oct 2007, cp-146-00027
Abstract
Our understanding of the tectonic evolution of the Cape Fold Belt, southern Karoo Basin and associated geophysical<br>Beattie Magnetic Anomaly (BMA), may be challenged by the new ~ 100 km Near Vertical Reflection (NVR) seismic<br>image which reveals ~42 to 45 km of complex crust and a sharp crust-mantle transition. The 5 to 10 km upper crust<br>consists of dipping reflectors interpreted as the folded sequences of the Karoo Basin, underlain by continuous flat-lying<br>reflectors that represent the Cape Supergroup (CSG) which may contain thrusts.