Tectonic implications of fore-arc magmatism and generation of high-magnesian andesites: Alexander Island, Antarctica

@article{McCarron1998TectonicIO,
  title={Tectonic implications of fore-arc magmatism and generation of high-magnesian andesites: Alexander Island, Antarctica},
  author={Joe J. McCarron and John L. Smellie},
  journal={Journal of the Geological Society},
  year={1998},
  volume={155},
  pages={269 - 280}
}
Alexander Island, situated off the west coast of the Antarctic Peninsula, contains a suite of Late Cretaceous to Early Tertiary subduction-related magmatic rocks. The rocks occupy a fore-arc position 100–200 km trenchward of the main arc (Antarctic Peninsula) and they become younger northward along the length of the island. Major and trace element geochemistry for 222 samples shows the suite to be a medium to high-K calc-alkaline series, ranging in composition from picro-basalt to rhyolite… Expand

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