The Pennsylvanian and Permian strata in the Appalachian basin are generally interpreted to be the erosional record of the Alleghanian orogeny. Advances in our understanding of the kinematic and tectonic...
- Science Paper
- Science PaperWe obtained 453.2 ± 1.8 Ma and 449.4 ± 1.8 Ma (2σ) laser step-heating 40Ar/39Ar plateau ages for phengite from quartzite mylonites from the blueschist-facies Ondor Sum subduction-accretion complex in...
- Science PaperThe Sudete Mountains of northeastern Bohemian Massif were amalgamated during the closure of the Rheic ocean, culminating with Variscan orogenesis, and contain occurrences of high-pressure granulite and small relict ultrahigh-pressure...