Transition from Diagenesis to Metamorphism Near the Front of the Variscan Regional Metamorphism (Cantabrian Zone, Northwestern Spain)

@article{Brime2001TransitionFD,
  title={Transition from Diagenesis to Metamorphism Near the Front of the Variscan Regional Metamorphism (Cantabrian Zone, Northwestern Spain)},
  author={Covadonga Brime and Susana Garc{\'i}a-l{\'o}pez and Fernando Bastida and Mar{\'i}a Luz Val{\'i}n and Javier Sanz-L{\'o}pez and Jes{\'u}s Aller},
  journal={The Journal of Geology},
  year={2001},
  volume={109},
  pages={363 - 379}
}
Distribution of paleotemperatures has been studied in Paleozoic rocks of the Variscan fold and thrust belt of the NW Cantabrian Zone (Spain) by a combined application of illite crystallinity (IC) and conodont color alteration index (CAI). Results show that the diagenetic‐metamorphic grade increases with the increase in rock age, as marked by decreasing IC values and increasing CAI values. Moreover, the CAI isogrades roughly reflect the structural traits of the area, indicating that maximum… 
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