Abstract

Teleseismic data recorded by twenty two northern stations of the Southern Africa Seismic Experiment (SASE) have been analysed to map the crustal and uppermost mantle structure of the Zimbabwe Craton and the Limpopo Belt. The results show that the crustal thickness of the Limpopo Belt ranges from 42 to 53 km with a complex Moho, while that of the Zimbabwe Craton ranges from 36 to 39 km, with a relatively sharp and simple Moho and no apparent mid-crustal discontinuities. Poisson’s ratio estimates show the crust under the Limpopo Belt to be of a relatively more mafic composition (σ > 0.26) than under the Zimbabwe Craton (σ ≤ 0.26), which is of intermediate composition.

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