Upper Karroo Pillow Lava and a New Sauropod Horizon in Rhodesia

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LAKE Kariba was maintained at full storage level, 1,600 feet above mean sea level, for several months in 1969, and has since been drawn down to around 1,585 feet. Wave action during the period of high lake level caused considerable erosion around exposed coasts on the lake shore. At the lower level, almost continuous exposure of rock is available in parts of the Zambezi valley where natural exposures were previously poor, and it is now possible to see details of the geology hitherto hidden. This is particularly noticeable in those parts of the lake where the solid geology consists of the lavas and interbedded sediments belonging to the Stormberg (Lower Jurassic) stage of the Karroo System. Cliffs on the islands just west of the Bumi estuary (centred on lat. 16° 47′ S, long. 28° 13′ E) have proved particularly revealing.

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BOND, G., WILSON, J. & RAATH, M. Upper Karroo Pillow Lava and a New Sauropod Horizon in Rhodesia. Nature 227, 1339 (1970) doi:10.1038/2271339a0

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