The larger benthic foraminifera Gyroconulina columellifera Schroeder & Darmoian, 1977 (type-locality: Maastrichtian Aqra Formation of Iraq) is described for the first time from two sections of the Maastrichtian Tarbur Formation of the Zagros Fold-Thrust-Belt, SW Iran. New details on its wall microstructure are provided. The microfacies is represented by bioclastic wacke-/pack-/grainstones with ...

Balanced regional cross sections based on surface, seismic, and subsurface data show that the thin-skinned fold-and-thrust belt in Rocky Mountain Foothills of Kakwa area central Canadian Rockies consists a lower buried thrust developed Paleozoic Triassic strata an upper exposed faulted fold Jurassic to Cretaceous strata. Changes wavelength, amplitude, geometry with stratigraphic level indicate ...

We investigate the material fluxes in space and time as a result of exhumation and erosion processes at the ongoing Yakutat–North American collision in southeast Alaska. Many thermochronologic studies using a variety of sampling strategies are challenged by the widespread ice cover that limit field observations and accessibility. This paper reviews new and published low-temperature thermochrono...

Three drivers of subsidence are recognized in the Western Interior Basin: Mesozoic–early Cenozoic flexure adjacent to thin-skinned, eastward propagating Sevier Orogeny, Late Cretaceous–Eocene associated with thick-skinned Laramide Uplifts and Cretaceous dynamic subsidence. This study combines outcrop lithofacies, palaeocurrent measurements, detrital zircon geochronology, biostratigraphy, strati...