Price
BWP140.00
During 1970 and 1971 some 1500 gravity observations were made over an area of 70 000 square kilometres in Ngamiland, Botswana's remote North West District. Studies of Botswana have shown that the vast inland swamps of the Okavango Delta in Ngamiland are an area of considerable earthquake activity, thought to be associated with rift faulting. However, Ngamiland is characterised by extremely low topographic relief and the solid geology is nearly everywhere concealed by Kalahari sands and recent fluviatile sediments.The gravity survey was designed to investigate the gravity anomalies which major geological structures concealed below these sediments might be expected to produce.
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