Dear RG members, IUGS is planning a new edition of the classical "Le Maitre" book devoted to the classification and nomenclature of igneous rocks. A group of 17 igneous petrologists (hereafter TGIR - Task Group on Igneous Rocks) is working for four years to update specific definitions or proposing entirely new sections.
As the Chair of the TGIR, I would like to start a discussion with all the interested people that want to give help concerning this task. Attached you find the first draft of Chapter 4 of the new book. I invite all the interested researchers to download it and add notes and comments using the "track changes" option with MS Word. I would appreciate then if you could send it to my email address ([email protected]), so that I can forward them to the TGIR members.
Thanks for the cooperation,
Michele
As the chair of the TGIR I underlilne that this approach has been defined and approved by IUGS.
Michele
Yang Wang
: Thank you for your comment. You are right. This is a draft and the idea to post it on RG was indeed this: to find errors or weak aspects that can be ammended before the final publication of the third edition (when and if it will come out). The correct definition of trondhjemites will remain the same, i.e., a leucocratic version of a tonalite.Michele
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