6533b7dcfe1ef96bd1273361

RESEARCH PRODUCT

Geochemistry, Isotope Geochemistry and Geochronology: Application to Field Studies

John S. MyersCees W. PasschierAlfred Kröner

subject

Metamorphic rockIsotope geochemistryGeochronologyGeochemistryRock bodyAnatexisProtolithField (geography)GeologyGneiss

description

Structural studies make it possible to reconstruct the metamorphic and deformation history of a rock body but do not provide information on the absolute timing of these processes. Likewise, field observations and structural work alone may not unambiguously identify the protoliths of many high-grade gneisses or the compositional changes associated with migmatisation, anatexis and the general action of fluid and/or vapour phases in a rock. Geochemical research can answer many of these problems but, as most of this research is laboratory-oriented, we limit ourselves to some general outlines of the possible lines of research, so that these can be borne in mind during fieldwork.

https://doi.org/10.1007/978-3-642-76013-6_6