The structure and lithological sequences of ophiolites provide critical information for reconstructing their tectonic setting thus, the history paleo-oceanic basins in which they formed. Our systematic mapping three best-preserved massifs Xigaze ophiolite from middle segment Yarlung Zangbo Suture Zone (YZSZ) South Tibet, revealed a nearly intact ophiolitic sequence that has largely escaped empl...

Ultramafic soils are originated from ultramafic rocks such as peridotite and serpentinite highly enriched in metals (e.g., Ni, Cr, Co) depleted plant nutrients P, K, Ca). Such characteristics make these unfavorable for agriculture have raised environmental concerns on metal release to the environment. From another perspective, host a diverse flora with higher endemism than surrounding non-ultra...

The main purpose of this exploratory project is to develop a more fundamental understanding of the long-term sequestration of CO2 via mineral carbonation reactions involving the common Mg-silicates in serpentinite and basalt mineral assemblages. Past experimental studies have shown that these reactions are kinetically limited, so we are exploring ways to enhance their kinetics, including the us...

Abstract Previous studies have concluded that dehydration of serpentinites in subduction zones produces oxidizing fluids are the cause oxidized arc magmas. Here, observations natural samples and settings combined with thermodynamic models to explore some factors complicate interpretation form basis this conclusion. These include variability serpentinite protoliths, roles carbon sulfur evolution...

The Kings-Kaweah ophiolite belt of the southwestern Sierra Nevada Foothills was generated in two pulses of mid-oceanic-ridge basalt (MORB) magmatism. The first was in the Early Ordovician, which resulted in the generation of a complete abyssal crust and upper mantle section. The crustal section was rendered from convecting mantle whose Nd, Sr, and Pb isotopic systematics lie at the extreme end ...