The contribution of elastic geothermobarometry to the debate on HP versus UHP metamorphism.

ABSTRACT: Characterizing the pressure and temperature (P-T) histories of eclogite facies rocks is of key importance for unravelling subduction zone processes at all scales. Accurate P-T estimates provide constraints on tectonic and geochemical processes affecting subduction dynamics and help in interpreting the geophysical images of present-day converging plates. Conventional equilibrium geothermobarometers are challenged in ultra high pressure (UHP) metamorphic terranes, as minerals may undergo re-equilibration along their exhumation path. Elastic geobarometry applied to host-inclusion systems is a complementary method to determine P-T conditions of metamorphism independent from chemical equilibrium. Because only a single measurement, the inclusion strain, is made, only a line

SUBMITTER: Gilio M 

PROVIDER: S-EPMC9336520 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature