Syntectonic magnetization of the mid-Palaeozoic Sierra Grande Formation: further constraints on the tectonic evolution of Patagonia

@article{Rapalini1998SyntectonicMO,
  title={Syntectonic magnetization of the mid-Palaeozoic Sierra Grande Formation: further constraints on the tectonic evolution of Patagonia},
  author={A. Rapalini},
  journal={Journal of the Geological Society},
  year={1998},
  volume={155},
  pages={105 - 114}
}
  • A. Rapalini
  • Published 1998
  • Geology
  • Journal of the Geological Society
  • A palaeomagnetic study was carried out in the Silurian-Devonian clastic sedimentary rocks of the Sierra Grande Formation, exposed in northeastern Patagonia (41.6°S, 65.3°W). Thirteen sites (n=88) were located on opposite limbs of a syncline-anticline structure. Stepwise thermal demagnetization permitted the identification of a very stable magnetic component of reversed polarity carried by hematite. Stepwise performance of the fold test yielded negative results both in situ and after 100… CONTINUE READING
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