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Characteristic Magnetic Behavior of Southwest Nigerian Granitoids

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Petrogenesis and Exploration of the Earth’s Interior (CAJG 2018)

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Abstract

The present work constitutes a primary initiative whereby the initially achieved results are released, following a detailed regional thermomagnetic study of granitoids from the Precambrian basement rocks of southwestern Nigeria. In this respect, a selection of multifunctional kappabridge (MFK1-FA), Scanning electron microscope, alternating field demagnetizer, spinner magnetometer, vibrating sample magnetometer have been applied to characterize the basement rocks relating magnetic behavior. Standard samples have been prepared using 2.5 cm by 2.1 cm, in the form of cylindrical cores, to depict the relevant paleomagnetic character, while polished samples and grains/powder have been applied for mineralogical characterization purposes. The reached results prove to reveal the stability attached to the representative samples, along with the dominance of PSD/MD magnetic domain state with regard to the magnetite polymorphs.

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Correspondence to Cyril Okpoli .

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Okpoli, C., Oladunjoye, M., Herrero-Bervera, E. (2019). Characteristic Magnetic Behavior of Southwest Nigerian Granitoids. In: Doronzo, D., Schingaro, E., Armstrong-Altrin, J., Zoheir, B. (eds) Petrogenesis and Exploration of the Earth’s Interior. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01575-6_12

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