Early Carboniferous gabbro and basalt in the St. Peters area, southern Cape Breton Island, Nova Scotia

@article{Barr1994EarlyCG,
  title={Early Carboniferous gabbro and basalt in the St. Peters area, southern Cape Breton Island, Nova Scotia},
  author={S. Barr and A. Grammatikopoulos and G. Dunning},
  journal={Atlantic Geology},
  year={1994},
  volume={30},
  pages={247-258}
}
Small gabbroic plutons and minor mafic volcanic rocks occur in the St Peters area of southwestern Cape Breton Island. U-Pb dating of zircon and baddeleyite show that the gabbro has an Early Carboniferous age of 339 ± 2 Ma, similar to the age of the surrounding sedimentary units of the Horton and Windsor groups. The gabbros were intruded at shallow depth, consistent with their association with minor mafic volcanic rocks. Penological studies suggest that evolution of the gabbros involved… Expand
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