Abstract
The emplacement of Neoproterozoic mafic-ultramafic complexes in the Iddeleh area, Silet Block (Western Hoggar) was associated with garnet hornfels facies contact metamorphism of the Pharusian I metapelites. EPMA data of garnet reveal formation temperatures as high as 900 °C. A later metamorphic event is manifested in the persistence of chlorite schist, in which the chlorite composition (Aliv contents) indicates a temperature range of 300–400 °C. It is, therefore, suggested that juxtaposition of the Silet terrane and the microcontinent LATEA was not the outcome of a collisional regime.
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Nedjraoui, K., Azzouni-Sekkal, A., Kheloui, R., Hamoudi, M., Khazndji, R.B.E. (2019). Petrographic, Mineralogical and Geothermometric Study of Garnet Hornfels from the Region of Iddeleh Silet Hoggar Occidental Algeria. 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_17
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DOI: https://doi.org/10.1007/978-3-030-01575-6_17
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