GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 1.1 GNGTS 2023 Figure 2. Variability of REEs-Y content in 39 limestone sample cores as a function of fault scarp height (cm). The vertical axis represents Δ i/ Δ m (for the calculation see (Carcaillet et al., 2008)), with n (number of measurements=39). The black dots represent each element of REEs-Y, while the triangle is the average between REEs-Y. The grey line represents the average REEs-Y content in 3 Timpe limestone background samples and the dashed black line is the linear regression of the data (the equation of the line is included in the figure). Shaded grey vertical rectangles highlight portions of the scarp which have been enriched in REEs-Y. (A) and (B) refer to two different scenarios here presented. References Bello S., Scott C.P., Ferrarini F., Brozzetti F., Scott T., Cirillo D., de Nardis R., Arrowsmith R., and Lavecchia G.; 2021: High-resolution surface faulting from the 1983 Idaho Lost River Fault Mw 6.9 earthquake and previous events . Scientific Data 8, 68. https://doi.org/10.1038/s41597-021-00838-6 Bello, S., Lavecchia, G., Andrenacci, C., Ercoli, M., Cirillo, D., Carboni, F., Barchi, M. R., and Brozzetti, F.; 2022: Complex trans-ridge normal faults controlling large earthquakes . Scientific Reports, v. 12, no. 1, p. 10676, https://doi:10.1038/s41598-022-14406-4 . Carcaillet, J., Manighetti, I., Chauvel, C., Schlagenhauf, A., and Nicole, J.-M.; 2008: Identifying past earthquakes on an active normal fault (Magnola, Italy) from the chemical analysis of its exhumed carbonate fault plane . Earth and Planetary Science Letters, v. 271, p. 145-158, https://doi:10.1016/j.epsl.2008.03.059 . Castelli, V., Galli, P., Camassi, R., and Caracciolo, C.; 2008: The 1561 Earthquake(s) in Southern Italy: New Insights into a Complex Seismic Sequence . Journal of Earthquake Engineering, v. 12, no. 7, p. 1054-1077, https://doi:10.1080/13632460801890356 . Galli, P., Bosi, V., Piscitelli, S., Giocoli, A., and Scionti, V.; 2006: Late Holocene earthquakes in southern Apennine: Paleoseismology of the Caggiano fault . International Journal of Earth Sciences, v. 95, p. 855-870, https://doi:10.1007/s00531-005-0066-2 . Galli, P., Galadini, F., and Pantosti, D.; 2008: Twenty years of paleoseismology in Italy . Earth-Science Reviews, v. 88, p. 89-117, https://doi:10.1016/j.earscirev.2008.01.001 . *Correspondence: simone.bello@unich.it