Abstract Fluid inclusion microthermometry of synkinematic veins is used to estimate the maximum syntectonic load that was deposited on wedge top in central Appalachians (northeastern United States) during Alleghanian orogeny. The restored loads indicate two major depocenters orogeny: one above Broadtop synclinorium, with as much 7 km Pennsylvanian–Permian probably sourced by erosion rocks uplif...

Mantle seismic structure beneath the United States spanning from the active western plate margin to the passive eastern margin was imaged with teleseismic P and S wave traveltime tomography including USArray data up to May 2014. To mitigate artifacts from crustal structure 5–40 s, Rayleigh wave phase velocities were used to create a 3-D starting model. Major features of the final P and Smodels ...