Vol. 319, Issue 8, 2019

Science Paper
The Contribution to Exogenic CO₂ by Contact Metamorphism at Continental Arcs: A Coupled Model of Fluid Flux and Metamorphic Decarbonation
Xu ChuCin-Ty A. LeeRajdeep DasguptaWenrong Cao
Recent work has suggested a possible temporal coincidence between greenhouse intervals and enhanced arc volcanism, motivating the hypothesis that magmatic and metamorphic CO<sub>2</sub> emissions from volcanic arcs, particularly those intersecting...
Science Paper
Geochemistry of Intrusive Rocks on the Prescott Peninsula, Central Massachusetts, USA: Implications for Late Detachment Faulting Within the Ordovician Taconian Volcanic Arc
Kurt HollocherPeter RobinsonBenjamin LucasStephen Mabee
The Prescott Peninsula contains two intrusive bodies: the Cooleyville Gneiss (449 Ma) and the Packard Gabbro (407 Ma), which cuts the Cooleyville. These are centrally located in the Bronson Hill...
Science Paper
Provenance of the Newfoundland Appalachian Foreland Basins
Shawna E. WhiteJohn W.F. WaldronGreg R. DunningS. Andrew Dufrane
The tectonic history of the Appalachian orogen is recorded in the adjacent foreland. Offshore seismic data suggest that an initial, Middle Ordovician foreland basin was filled by sources in Newfoundland,...