McGregor, MareeWalton, Erin L.McFarlane, Christopher R. M.Spray, John G.2022-07-182022-10-122022-10-122020McGregor M., Walton E.L., McFarlane C.R.M., and Spray J.G. (2020). Multiphase U-Pb geochronology of sintered breccias from the Steen River impact structure, Canada: Mixed target considerations. Geochimica et Cosmochimica Acta 274: 136-156. DOI: https://doi.org/10.1016/j.gca.2020.01.052https://hdl.handle.net/20.500.14078/2764In situ U-Pb geochronology has been conducted using laser ablation inductively coupled mass spectrometry (LA-ICP-MS) on shocked and thermally metamorphosed apatite, titanite, and zircon grains from the Steen River impact structure, Canada.enAll Rights ReservedSteen RiverLA-ICP-MSU-Pb geochronologyapatitezircontitaniteshock metamorphismimpact-induced recrystallizationsinteringimpact melt-bearing brecciasmetamictizationPb lossPb diffusionJurassic-Cretaceous boundaryArticlehttps://doi.org/10.1016/j.gca.2020.01.052