[HTML][HTML] The Rustenburg Layered Suite formed as a stack of mush with transient magma chambers
Abstract The Rustenburg Layered Suite of the Bushveld Complex of South Africa is a vast
layered accumulation of mafic and ultramafic rocks. It has long been regarded as a textbook …
layered accumulation of mafic and ultramafic rocks. It has long been regarded as a textbook …
The presence of silicate melt may enhance rates of cation diffusion in olivine
Olivine is commonly used as a 'crystal clock'to extract timescales relevant to pre-eruptive
perturbations within mafic magmatic systems. Diffusion chronometry applications require …
perturbations within mafic magmatic systems. Diffusion chronometry applications require …
Modelling hydrogen mobility in forsterite as diffusion coupled to inter-site reaction
MC Jollands, J Muir, JA Padrón-Navarta… - … to Mineralogy and …, 2022 - Springer
Whilst the diffusivity of hydrogen (H) in forsterite (Mg2SiO4) has been extensively studied,
there still remain some puzzling observations. Firstly, experiments measuring ostensibly the …
there still remain some puzzling observations. Firstly, experiments measuring ostensibly the …
Two-stage evolution of a bimodal reservoir: The case of Holocene lavas of the Lanín composite volcano, Southern Volcanic Zone, Chile
Lanín is a composite volcano (∼ 39.38° S; 71.30° W) located in the Central Southern
Volcanic Zone of the Andes. It is the southernmost member of the NW-SE volcanic alignment …
Volcanic Zone of the Andes. It is the southernmost member of the NW-SE volcanic alignment …
[HTML][HTML] Explaining the dependence of M-site diffusion in forsterite on silica activity: a density functional theory approach
Abstract Experimentally, silica activity (aSiO 2) has been shown to have an effect on Mg
diffusion in forsterite, but no fully satisfactory mechanism has yet been proposed. We …
diffusion in forsterite, but no fully satisfactory mechanism has yet been proposed. We …
Diffusion rates of hydrogen defect species associated with site-specific infrared spectral bands in natural olivine
YW Li, SJ Mackwell, DL Kohlstedt - Earth and Planetary Science Letters, 2022 - Elsevier
We investigated hydrogen transport in naturally occurring, iron-bearing samples of San
Carlos olivine that were hydrogenated at confining pressures of 200 or 300 MPa and 1173 …
Carlos olivine that were hydrogenated at confining pressures of 200 or 300 MPa and 1173 …
Magnesium transport in olivine mantle: new insights from miniaturized study of volume and grain boundary diffusion in Mg2SiO4 bi-crystals
E Gardés, D Gibouin, B Radiguet, A David… - … to Mineralogy and …, 2021 - Springer
We report experimental measurements of volume and grain boundary diffusion of 26 Mg in
Mg 2 SiO 4 bi-crystals at asthenosphere temperatures as a ground reference for olivine. By …
Mg 2 SiO 4 bi-crystals at asthenosphere temperatures as a ground reference for olivine. By …
Diffusion of hydroxylated Si vacancies in olivine, and its relevance to Si diffusion
MC Jollands - Geochemistry, Geophysics, Geosystems, 2023 - Wiley Online Library
The diffusion coefficient associated with the 3,612 cm− 1 infrared absorbance band in H‐
bearing olivine, attributed to a defect involving a vacant Si site balanced by four H+ (ie,), was …
bearing olivine, attributed to a defect involving a vacant Si site balanced by four H+ (ie,), was …
Scandium diffusion in forsterite: concentration dependence, inter-site reactions and the effect of trivalent cations on Fe diffusion
Diffusion of scandium (Sc) in synthetic forsterite (Mg 2 SiO 4) was studied at 1400° C at
atmospheric pressure, in air. The Sc source was a powder of forsterite and protoenstatite …
atmospheric pressure, in air. The Sc source was a powder of forsterite and protoenstatite …
The mechanism of Mg diffusion in forsterite and the controls on its anisotropy
Mg diffusion is important for explaining many properties of forsterite but its mechanism is
unknown. This makes it hard to predict how it will behave in different circumstances. In this …
unknown. This makes it hard to predict how it will behave in different circumstances. In this …