High temperature fracturing and ductile deformation during cooling of a pluton: The Lake Edison granodiorite (Sierra Nevada batholith, California)

► Ductile shear zones nucleated on planar mechanical or compositional heterogeneities. ► In granitoid plutons, sets of fractures developed at the early stages of postmagmatic cooling. ► Both jointing and shearing occurred at temperatures exceeding 500 °C.