Fabrics of five spinel peridotites collected from Baker Rocks in northern Victoria Land,Antarctica,were investigated to elucidate the evolution of the lithospheric mantle surrounding the Transantarctic Mountains.Analy...Fabrics of five spinel peridotites collected from Baker Rocks in northern Victoria Land,Antarctica,were investigated to elucidate the evolution of the lithospheric mantle surrounding the Transantarctic Mountains.Analyses revealed the development of crystallographic preferred orientations(CPOs),a slight decrease in mean grain size and J-index across varying proportions of clinopyroxene,and interlobate to amoeboid textures.These findings indicate that dislocation creep is the dominant deformation mechanism for the analyzed samples.展开更多
基金supported by the Korea Polar Research Institute project PE24050.
文摘Fabrics of five spinel peridotites collected from Baker Rocks in northern Victoria Land,Antarctica,were investigated to elucidate the evolution of the lithospheric mantle surrounding the Transantarctic Mountains.Analyses revealed the development of crystallographic preferred orientations(CPOs),a slight decrease in mean grain size and J-index across varying proportions of clinopyroxene,and interlobate to amoeboid textures.These findings indicate that dislocation creep is the dominant deformation mechanism for the analyzed samples.
