Reply to comment by S.H. Büttner on: "One kilometre-thick ultramylonite, Sierra de Quilmes, Sierras Pampeanas, NW Argentina"

Abstract

We thank S.H. Büttner for the opportunity to clarify our work and the evolution we proposed for the shear zones of Sierra de Quilmes. Büttner et al. (2005) was the first comprehensive study of the Tolombón complex. Their map, photographs, and petrography were helpful and although we cited their work more than any other, we apologise that S.H. Büttner felt the work was under referenced. We have worked throughout the Tolombón complex (as first named in Toselli et al., 1978) covering much of the area described in Büttner et al. (2005) and far beyond, in numerous transects across the Sierra de Quilmes. This was the first of several papers that we aim to publish on the area and our intent was to present our data on the El Pichao shear zone (PSZ). Our next paper is on the high-grade Tolombón complex and makes full use of the comprehensive geochronology data set in Büttner et al. (2005).