The result of some temperature gradient measurements in available boreholes, located in the centre of the Nigerian Ririwai complex gave a heat flow of 0.92 ± 0.04 hfu. This result agrees with that of the worldwide averages for Precambrian shield areas but compared with the mean for post orogenic provinces elsewhere, this result is perhaps anomalously low. An attempt to explain this result indicates that detailed heat-flow observations over ring complexes might lead to interesting conclusions concerning the origin and emplacement of such complexes.

Original languageEnglish
Issue number1-2
Publication statusPublished - 10 Apr 1979

ID: 70061394