Abstract
In the Oban massif of southeastern Nigeria, Rb/Sr isotopic study of amphibolites shows that the emplacement and main phase of metamorphism of these rocks occurred 1313 ± M.a. ago. The banded variety of these amphibolites produced a Rb/Sr whole-rock isochron age of 784 ± 31 M.a. This age is a record of an isotopic destabilization at the boundary of the Kibaran and the Pan-African orogenesis in southeastern Nigeria.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
