Transformation of silica-rich to carbonated silicate melts in a big mantle wedge revealed by geochemistry of mantle xenoliths

Key Points

• Transformation of silica-rich melts to carbonated silicate melts occurs in the mantle wedge.
• Significant shifts in geochemistry include alterations in mineral composition and fluid inclusion behavior.
• Study utilizes mantle xenoliths to analyze melt compositions and their transformations.
• These findings may improve understanding of mantle dynamics and geochemical cycles.