Differences in chemical thickness of grain and phase boundaries: an atom probe tomography study of experimentally deformed wehrlite

Atom Probe Tomography: Development and Application to the Geosciences

“…Since the development of laser‐assisted APT, there has been growing interest in applying nanoscale geochemical characterisation to a broad range of geological materials including glass (Gin et al , Hellmann et al , Gin et al ), diamond (Heck et al , Lewis et al , Schirhagl et al , Mukherjee et al ), Fe‐Ni metal alloys (Einsle et al ) and silicides (Gopon et al ), platinum‐group alloys (Parman et al , Daly et al , ), oxides (Bachhav et al , , Fahey et al , Taylor et al , Frierdich et al , Gamal El Dien et al , Genareau et al , Taylor et al ), carbonates (Felmy et al , Branson et al , Pérez‐Huerta et al , Pérez‐Huerta and Laiginhas ), sulfides (Fougerouse et al , Dubosq et al , Fougerouse et al , Gopon et al , Wu et al ), sulfates (Weber et al ), zeolites (Schmidt et al ) and rock‐forming silicates, such as feldspars (White et al , Cao et al ) and olivine (Bloch et al , Cukjati et al , Figure ). However, a high proportion of the published APT work to date has focussed on trace element mobility, particularly Pb, in accessory minerals.…”

“…However, currently there are few atom probe studies of phase boundaries in geological materials. Two notable examples include the trace element analysis of experimentally produced olivine–clinopyroxene phase boundaries (Cukjati et al ) and trace element segregation to the shock‐induced, polymorphic interface between zircon and reidite (Montalvo et al ). In the latter case, the observed trace element enrichment is interpreted to be related to interface formation and requires a modification of the existing martensitic transformation model for the shock metamorphic transformation of zircon to reidite (Figure ; Montalvo et al ).…”

“…, Hellmann et al 2015, Gin et al 2017, diamond(Heck et al 2014, Lewis et al 2015, Schirhagl et al 2015, Mukherjee et al 2016, Fe-Ni metal alloys(Einsle et al 2018) and silicides(Gopon et al 2017), platinum-group alloys(Parman et al 2015, Daly et al 2017, oxides(Bachhav et al 2011, Fahey et al 2016, Taylor et al 2018, Frierdich et al 2019, Gamal El Dien et al 2019, Genareau et al 2019, Taylor et al 2019, carbonates(Felmy et al 2015, Branson et al 2016, P erez- Huerta et al 2016, P erez-Huerta and Laiginhas 2018, sulfides, Dubosq et al 2019, Gopon et al 2019, Wu et al 2019, sulfates(Weber et al 2016), zeolites(Schmidt et al 2019) and rock-forming silicates, such as feldspars(White et al 2018c, Cao et al 2019) and olivine(Bloch et al 2019, Cukjati et al 2019 …”

Standardizing Spatial Reconstruction Parameters for the Atom Probe Analysis of Common Minerals

“…Olivine is a major constituent of Earth's mantle and its deformation characteristics are considered to control mantle rheology. Previous APT studies of olivine have investigated the diffusion characteristics of Ca (Bloch et al, 2019), the composition of deformation-related interfaces (Reddy et al, 2020; Tacchetto et al, 2021b), and the width of grain boundaries formed in deformation experiments (Cukjati et al, 2019). APT also revealed the incorporation mechanisms of trace elements in olivine (Brandt et al, 2021).…”

Inference of thermodynamic state in the asthenosphere from anelastic properties, with applications to North American upper mantle

“…Phase boundaries generally have lower viscosity (Zhao et al, 2019) and faster transport than grain boundaries (Cukjati et al, 2019), so can alter the behavior of the HTB. Sundberg and Cooper (2010) performed attenuation experiments on polyphase olivine-pyroxene samples, and showed that they tend to be more dissipative than otherwise similar olivine samples, which they attribute to the presence of phase boundaries.…”