Response to Referee #1

Abstract

We would like to thank Referee 1 for the constructive comments. Each enquiry is addressed below in the order they appeared in the review.Referee 1: what are the absolute ages of these units anyway? Our response: The age of the cap dolostones is ∼635 Ma (Jiang et a. 2011, Hoffman et al. 2007) Referee 1: a number of figures which could be effectively combined together C1 CPD Interactive comment Printer-friendly version Discussion paperOur response: We agree such high-resolution data are not available. However, considering that the plumewater model is one of the plausible models for cap carbonate formation, we thought it was worth testing. C6 CPD Interactive commentPrinter-friendly version Discussion paperTypos and minor issues kindly identified by Referee 1 could be easily dealt with in a revised manuscript.