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. M. Barr and Anastasios Grammatikopoulos and Gregory R. 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… 

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References

SHOWING 1-10 OF 19 REFERENCES
Late Devonian – Early Carboniferous volcanism in western Cape Breton Island, Nova Scotia
The Fisset Brook Formation of western Cape Breton Island and its equivalents at MacMillan Mountain and the north Baddeck River are examples of Late Devonian and Early Carboniferous volcanic sequences
Carboniferous volcanic rocks of the Magdalen Islands, Gulf of St. Lawrence
Volcanic rocks of Mississippian age occur on the Magdalen Islands as cap rocks and within collapse breccias above salt diapirs that have formed the islands. They consist of coarse volcaniclastic
Petrochemistry and tectonic significance of Carboniferous volcanic rocks in New Brunswick
Carboniferous volcanic rocks from the New Brunswick Platform in the Maritimes Basin are divided into three age groups. Late Tournaisian to early Visean volcanic rocks are tholeiitic basalts and
Appalachian basement and its intrusion by Cretaceous dykes, offshore southeast Nova Scotia, Canada
Aeromagnetic data collected between eastern Nova Scotia and southern Newfoundland provide new information about the offshore extension of the Avalon and Meguma terranes. A zone of short-wavelength
Trace element characteristics of lavas from destructive plate boundaries
Volcanic are basalts are all characterized by a selective enrichment in incompatible elements of low ionic potential, a feature thought to be due to the input of aqueous fluids from subducted oceanic
Optimum linear regression and error estimation applied to U–Pb data
TLDR
A method is presented for the estimation of age errors for U–Pb zircon data based on Bayesian confidence intervals using the formalism of maximum pro...
...
1
2
...