Reply to Anonymous referee comments

Abstract

We will try to simplify the abstract. Introduction: We agree with the referee that it was an oversight not to refer to the work by Hodson et al. (1997) and we will cite it in the introduction. We also thank the referee for pointing out the difficulty of understanding hypothesis 1. We would like to clarify that site-specific mineralogy is determined in terms of the minerals identified and the chemical compositions of these minerals but not determined (directly) in terms of the abundance of these minerals, which is instead calculated by A2M. Although the definitions of 'site specific', 'regional' and 'measured' mineralogy are C1