Project Components – Geology and Petrology

The geologic component of the PICASSO project focuses on unraveling the Miocene to Recent history of subduction along the Betic-Rif arc using the thermal, kinematic and isotopic signatures preserved within the arc’s main tectonic complexes.

The Sierra Nevada in southern Spain– host to one of the main subduction complexes in the Betics (the Nevado-Filabride Complex).

SierraNevadaBetic_rdc

Tectonic model for the formation and exhumation of the Nevado-Filabride Complex during the mid- to late- Miocene (from Behr & Platt, 2012).Fig14_NFtectonicmodel_final

Publications:

Behr, W.M. and Platt, J.P., 2012.  Kinematic and thermal evolution during two-stage exhumation of a Mediterranean subduction complex. Tectonics, 31, TC4025. doi:10.1029/2012TC003121.

Platt, J. P., Behr, W. M., Johanesen, K. and Williams, J.R., 2013. The Betic-Rif arc and its orogenic hinterland: A review. Annual Review of Earth and Planetary Sciences, 41, 14.1–14.45, doi:10.1146/annurev-earth-050212-123951.

Behr, W. M., and Platt, J. P., 2013, Rheological evolution of a Mediterranean subduction complex: Journal of Structural Geology, v. 54, p. 136-155.

Johanesen, K., Platt, J. P. and Kaplan, M. in press. A revised thermal history of the Ronda peridotite, S. Spain: New evidence for excision during exhumation.  Earth and Planetary Science Letters.