SHRIMP zircon U-Pb dating for gabbro from the Tiding ophiolite in Tibet

Late Cretaceous (ca. 90Ma) adakitic intrusive rocks in the Kelu area, Gangdese Belt (southern Tibet): Slab melting and implications for Cu–Au mineralization

“…9). Previous studies on the Xigaza ophiolites suggest that the Neo-Tethyan Ocean was opened in the Early Cretaceous ($130-120 Ma) (Allègre and Xu, 1984;Malpas et al, 2003;Wang et al, 2006c;Guilmette et al, 2009). When such oceanic curst was subducted during the Late Cretaceous ($90 Ma), it is possible that partial melting of relatively young oceanic crust generated adakitic magmas (e.g., Defant and Drummond, 1990).…”

Preservation of ancient Os isotope signatures in the Yungbwa ophiolite (southwestern Tibet) after subduction modification

“…Such a Neoproterozoic age is much older than the formation ages of the ophiolites (ca. 120-170 Ma) outcropped along the IYS (Malpas et al, 2003;Miller et al, 2003;Wang et al, 2006;Wei et al, 2006;Zhong et al, 2006). Old mantle components with the Proterozoic ages have been widely reported in the abyssal peridotites and ophiolites (Brandon et al, 2000;Harvey et al, 2006;Liu et al, 2008;Schulte et al, 2009).…”

Relicts of the Early Cretaceous seamounts in the central-western Yarlung Zangbo Suture Zone, southern Tibet

“…The zircon U-Pb ages of the mafic rocks across the whole YZSZ are also presented. The data sources are from Li et al (2008Li et al ( , 2009a, Malpas et al (2003), Wang et al (2006), Wei et al (2006b), Xia et al (2008b), and Zhong et al (2006). The outline of Comei large igneous province is from Zhu et al (2008bZhu et al ( , 2009).…”