Kunfeng Qiu

Potassium isotopes reveal lithospheric control on the evolution of deep-sourced carbonated silicate magmas

Kimberlites and related CO2-rich ultramafic rocks such as aillikites commonly show Nd-Hf isotope decoupling (unradiogenic εHf at a given εNd), attributed to either recycled oceanic slabs or interaction with metasomatized continental lithospheric mantle (CLM). We present potassium...

Metasomatized mantle source and far-field effect of flat-slab subduction at the Huangtuliang gold deposit, northern margin of the North China Craton

The metasomatized lithospheric mantle has been proposed as the primary source for gold mineralization at cratonic margins, yet without much direct evidence. To substantiate this theory with geochemistry, we study ore-hosting alkaline syenite and mineralization-related lamprophyre...