Question

Read the pressure-temperature diagram showing P-Tpaths of rocks within the Franciscan Complex and the Western Alps (Spear 1993), compared with measured paths from greenstone remnants SW of the Barberton greenstone belt (1, 2, 3). Geothermal gradients and the fields of aluminosilicate minerals andalusite (And), sillimanite (Sil) and kyanite (Ky) are also shown.

Answer 1

Please follow the attachment below.

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