Reading rocks

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Reading Rocks is about determining what rocks can reveal about their history from  fabric and microstructural analysis, tectonic sequence diagrams, process types, and development of practical skills. Most researcher use thin sections to identify minerals.  Little attention is given to the sequences of events and processes that can be inferred to have operated.

Practical aspects are an essential part of Reading rocks, with an emphasis on tectonic setting, field based structural context and importance of sample collection, microstructural analysis and preparation of tectonic sequence diagrams so that complex overprinting in metamorphic tectonites can be fully determined. Thus this method of Reading Rocks can be done at any scale, on any metamorphic tectonites, and into the brittle regime. Some of the areas that will be covered are:

  • The evolution of axial plane foliations in low-grade as well as high-grade terranes, and what can be learned from porphyroblasts.
  • The brittle and the ductile evolution of shear zones and mylonites.
  • Complex overprinting in a high pressure metamorphic terrane: e.g. the HP belt on Sifnos, Greece.
  • Complex overprinting in a high temperature metamorphic terrane: based on Broken Hill.
  • and so the list goes on...

Updated:  18 December 2017/Responsible Officer:  RSES Webmaster/Page Contact:  RSES Webmaster