Heterogeneous meteoric fluid infiltration within a young detachment-related shear zone

Syn-orogenic detachment faults exhuming extensional shear zones are ever-present features in orogenic settings on Earth. Kinematic and fluid-flow models for brittle detachment faults paired with crystal–plastic shear zones continue to evolve alongside new data and techniques. Evidence for meteoric water infiltrating the frictional–viscous transition zone in detachment-related shear zones has survived revisions of these models, but the extent and influence of meteoric-hydrothermal circulation is not fully understood. Kinematic analysis and δ2H values of synkinematic micas from nine transects through the