Olagoke, Akinola O. and Ghani, Azman A. and James, Elvaene (2021) Rare earth elements and fractionation of Zr-Hf and Y-Ho: Implication to petrogenesis of Idanre granite, Nigeria. Sains Malaysiana, 50 (4). pp. 919-928. ISSN 0126-6039, DOI https://doi.org/10.17576/jsm-2021-5003-04.
Full text not available from this repository.Abstract
Idanre area which is situated within the Nigerian shield is affected by orogenic activities accompanied by emplacement of Pan-African granitoids. This paper presents a new information on geochemical behaviour of Rare Earth Elements (REEs) and High Field Strength Elements (HFSEs) Zr-Hf and Y-Ho that can explain post magmatic processes relating to the origin and evolution of the Idanre granite. Zr-Hf, Hf-(Zr/Hf) and Y-Ho, (Y/Ho)-Ho variation diagrams depicted similar mobility and migration patterns for Zr, Hf, Y and Ho. Binary plots of Log Zr/Hf vs Log Hf, Log Y/Ho vs Log Ho; high LREE/HREE and negative Eu anomaly shows extensive plagioclase and calcic amphibole fractionation. High Ce/Yb values 113.49, 134.97, and 123.6 reflects low partial melting in the source rocks. Similar Zr/Hf ratios 39.16; 39.3 and 43.26 for members of the granite suite suggest a common source for the minimally differentiated magmatic fluid. Y/ Ho ratios of 27.15, 27.12 and 25.91 indicate that the rock units are comagmatic. Mean Zr/Hf (41.69) and Y/Ho (27.18) ratios indicate the host migmatite may be the source rock for the Idanre granite complex.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya |
| Uncontrolled Keywords: | Comagmatic; Idanre granite complex; Pan-African granitoids; REEs; Zr/Hf |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Science > Department of Geology |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 14 May 2022 07:00 |
| Last Modified: | 14 May 2022 07:00 |
| URI: | http://eprints.um.edu.my/id/eprint/27055 |
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