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Minor recumbent F1 west-facing folds in the hinge zone of La Spezia megafold affecting the Tuscan Nappe. Red layers are in Diaspri Formation (cherts) whereas withish layers are in the Maiolica Formation (limestone).
PhotoID741

Minor recumbent F1 west-facing folds in the hinge zone of La Spezia megafold affecting the Tuscan Nappe. Red layers are in Diaspri Formation (cherts) whereas withish layers are in the Maiolica Formation (limestone).
PhotoID741

Photograph: C. Montomoli, R. Carosi

Reference: Montomoli C., Ruggeri G., Boiron M. C., Cathelineau M. (2001) – Pressure fluctuation during uplift of the Northern Apennines (Italy): a fluid inclusion study. Tectonophysics, 314, 121-139. Montomoli C. (2002) – Vein development and fluid inclusion data: insight on the evolution of the Tuscan Nappe in the Northern Apennines. Boll. Soc. Geol. It./Italian Journal of Geoscience, 801-817. Carosi R., Leoni L., Montomoli C., Sartori F. (2003) – Very low-grade metamorphism in the Tuscan Nappe, Northern Apennines, Italy: relationships between deformation and metamorphic indicators in the La Spezia mega-fold. Schweiz. Schweiz. Mineral. und Petrogr, Mitteinl., 83, 15-32.