Re–Os and S systematics of spinel peridotite xenoliths from east central China: Evidence for contrasting effects of melt percolation

Late Archean to Early Proterozoic lithospheric mantle beneath the western North China craton: Sr–Nd–Os isotopes of peridotite xenoliths from Yangyuan and Fansi

“…The Re-Os isotopic system has proven useful in constraining the age of lithospheric mantle formation (Walker et al, 1989;Carlson and Irving, 1994;Pearson et al, 1995;Pearson, 1999;Reisberg and Lorand, 1995;Peslier et al, 2000a, b;Handler et al, 2003;Gao et al, 2002;Wu et al, 2003Wu et al, , 2006Reisberg et al, 2005). This is because Os has a highly compatible nature and Re is incompatible during mantle melting.…”

“…For instance, two end-member models have been proposed as mechanisms of lithospheric thinning, i.e., delamination versus thermo-mechanical erosion. Different physical mechanisms involved in lithospheric thinning have distinct implications for the vertical extent of lithospheric removal (Reisberg et al, 2005). Delamination would probably result in the removal of the entire mantle lithosphere and part of the lower crust (Wu et al, 2003;Gao et al, 2004).…”

Chemical and Pb isotope composition of olivine-hosted melt inclusions from the Hannuoba basalts, North China Craton: Implications for petrogenesis and mantle source

“…It is well documented that the NCC underwent considerable lithospheric thinning Reisberg et al, 2005;Wu et al, 2005;Zhang, 2005). However, the timing and duration of the lithospheric thinning in the NCC remains a matter of hot debate ).…”

Chalcophile elemental constraints on sulfide-saturated fractionation of Cenozoic basalts and andesites in SE China

“…First, most mantle xenoliths discovered in NE China have relatively low S contents near or less than 100 ppm (Reisberg et al, 2005;Zheng et al, 2005). Therefore, moderate degrees (~10%) of partial melting would exhaust all the sulfides in the mantle and produce magmas with high PGE concentrations.…”