Comparison of mantle-derived matierals from different spatiotemporal settings: Implications for destructive and accretional processes of the North China Craton

Indo‐Asian Collision: Transition from Compression to Lateral Escape Tectonics

“…In particular, the composition of the lithosphere in this area changed from old, cratonic, and enriched mantle to younger, depleted oceanic-type mantle (Zhou et al, 2005(Zhou et al, , 2006. However, the mechanism, timing, range, and dynamic setting of this destruction, as well as the composition of the lithosphere prior to destruction, remain debated Zheng, 2009). This contention is due mainly to a lack of systematic research into the geochronology, source characteristics, and evolution of mantle-derived magmatism in this area (Guo et al, 2001).…”

“…The first and second factors were the possible inducement of decratonization (Yang & Wu, 2009), while the last one played a determinant role Zhu et al, 2012). Upwelling and lateral convection of the asthenosphere was initiated by the flat subduction of the Pacific plate, and gradually eroded the lithospheric keels (Zheng, 2009;Zheng & Wu, 2009). During this process, the interactions of eclogite-derived melt with peridotites re-fertilized and undermined the cratonic lithospheric mantle (Gao et al, 2009;Li and Gerya, 2009).…”

Petrology, geochemistry and Re–Os isotopes of peridotite xenoliths from Yantai, Shandong Province: Evidence for Phanerozoic lithospheric mantle beneath eastern North China Craton

“…This is reminiscent of the debate about the age of the SCLM beneath Shandong. While some believe that the SCLM beneath this region is mostly of Proterozoic in age, representing the relicts of ancient upper mantle which survived the thermo-tectonic destruction of the NCC (e.g., Xiao et al, 2010;Zheng, 2009), others deem that all the SCLM beneath this region was formed during Phanerozoic (Chu et al, 2009;Gao et al, 2002). Although the consistency between the age inferred from the plot of Fo vs olivine mode and that deduced from Os isotopes are not demonstrated yet, we prefer to the idea that the SCLM beneath Shandong is made of Phanerozoic mantle, given the following considerations.…”

“…In particular, the mantle xenoliths entrained by the Ordovician diamondiferous kimberlites and late Cenozoic alkali basalts in this same area provide the direct samples for the contrasting nature and age of the sub-continental lithospheric mantle (SCLM) during the Paleozoic and the present time (e.g., Chu et al, 2009;Fan et al, 2000;Gao et al, 2002;Griffin et al, 1998;Menzies et al, 1993;Zhang et al, 2008;Zheng, 2009). Another prominent feature of the regional geology is the NNE-oriented Tanlu trans-lithospheric fault (Fig.…”

Adakitic rocks and destruction of the North China Craton: Evidence from experimental petrology and geochemistry

“…Essential information, such as the pattern, accurate timing and controlling factors of the dynamics for the destruction of the North China Craton have been discussed among Earth scientists, yielding different perspectives, including the potential for delamination [6][7][8][9][10][11][12][13][14][15][16][17][18][19], thermomechanical-chemical and subduction erosion [20][21][22][23][24][25][26][27][28][29][30][31][32][33], peridotite-melt reactions [34][35][36][37][38][39], and lithospheric mantle weakening by hydration [40]. A recent geophysical investigation [41], combined with petrology and geochemistry data, further demonstrate the main dynamic process for destruction of the North China Craton as follows: Subduction of the Mesozoic Pacific Plate caused the mantle underneath the eastern Asian continent to become unstable and flow faster.…”