Multiphase U-Pb geochronology of sintered breccias from the Steen River impact structure, Canada: mixed target considerations for a Jurassic-Cretaceous boundary event
Steen River, LA-ICP-MS, U-Pb geochronology, apatite, zircon, titanite, shock metamorphism, impact-induced recrystallization, sintering, impact melt-bearing breccias, metamictization, Pb loss, Pb diffusion, Jurassic-Cretaceous boundary
In 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.
McGregor 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.2020.01.052
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