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Lenses of boundinated green metabasite (containing relic glaucophane, lawsonite, omphacite) surrounded by glaucophane-albite-epidote-bearing mylonitic calcschist and marble. Peak P-T conditions in these rocks were estimated to be around 1.5 – 1.8 GPa and 300 – 400 °C. The field of view is approximately 5 – 7 m. Photo credits: Samuele Papeschi References: Papeschi, S., Musumeci, G.,…

Lenses of boundinated green metabasite (containing relic glaucophane, lawsonite, omphacite) surrounded by glaucophane-albite-epidote-bearing mylonitic calcschist and marble.

Peak P-T conditions in these rocks were estimated to be around 1.5 – 1.8 GPa and 300 – 400 °C.

The field of view is approximately 5 – 7 m.

Photo credits: Samuele Papeschi

References:
Papeschi, S., Musumeci, G., Massonne, H. J., Mazzarini, F., Ryan, E. J., & Viola, G. (2020). High‐P (P= 1.5–1.8 GPa) blueschist from Elba: Implications for underthrusting and exhumation of continental units in the Northern Apennines. Journal of Metamorphic Geology, 38, 495-525.
https://doi.org/10.1029/2019TC005890