Deformation microstructures in zircon and monazite: implications for shock, tectonic and geochronological studies
Embargo Lift Date
MetadataShow full item record
Zircon and monazite have been studied by quantitative microstructural analysis to constrain deformation processes in both tectonic and shock environments. Results provide new constraints on twinning, shock transformation to high pressure polymorphs and the conditions of formation of impact microstructures. Trace element mobility and modification of U – Pb ages, linked to crystal-plastic deformation in these environments, provides new strategies for dating the timing of deformation events by in situ analyses of microstructurally characterized accessory phases.
Showing items related by title, author, creator and subject.
40Ar/39Ar ages in deformed potassium feldspar: evidence of microstructural control on Ar Isotope systematicsReddy, Steven; Potts, G.; Kelley, S. (2001)Detailed field and microstructural studies have been combined with high spatial resolution ultra-violet laser 40Ar/39Ar dating of naturally deformed K-feldspar to investigate the direct relationship between deformation-related ...
Correlating planar microstructures in shocked zircon from the Vredefort Dome at multiple scales: Crystallographic modeling, external and internal imaging, and EBSD structural analysisErickson, T.; Cavosie, Aaron; Moser, D.; Barker, I.; Radovan, H. (2013)Microstructural and geochronological analysis of shocked zircon has greatly advanced understanding the formation and evolution of impact structures. However, fundamental aspects of shock-produced planar microstructures ...
Kaczmarek, M.; Tommasi, Andréa (2011)Analysis of the microstructures in the km-scale mantle shear zone that separates the northern and the central parts of the Lanzo peridotite massif provides evidence of an evolution in time and space of deformation processes ...