Locating South China in Rodinia and Gondwana: A fragment of greater India lithosphere?

Detrital zircon U–Pb ages of the Proterozoic metaclastic-sedimentary rocks in Hainan Province of South China: New constraints on the depositional time, source area, and tectonic setting of the Shilu Fe–Co–Cu ore district

“…This is in that the 207 Pb/ 206 Pb ages become increasingly imprecise below <1000 Ma due to the change of the concordia slope (Gerdes and Zeh, 2006), whereas that 206 Pb/ 238 U ages are more reliable in younger grains due to the low accumulation of 207 Pb in younger zircons. The results with >10% or <À10% discordance were excluded when interpreting the detrital zircon ages (Cawood et al, 2013b). The zircon U-Pb data listed in Appendices A1 and A2 were plotted on the U-Pb concordia diagrams (Fig.…”

“…Detrital zircons with the age cluster of 1700-1200 Ma are widely reported for (meta)sedimentary rocks in both the Yangtze and the Cathaysia Blocks of South China ( Fig. 9b and c; Li et al, 2007;Greentree et al, 2006;Wang et al, 2007aWang et al, , 2010bWang et al, , 2012aWang et al, , 2013bWang et al, , 2014aYu et al, 2008Yu et al, , 2010Sun et al, 2009;Zhou et al, 2009;Wan et al, 2010;Wu et al, 2010;Duan et al, 2011;Yao et al, 2011Yao et al, , 2012Xu et al, 2012;Cawood et al, 2013b). However, rocks with this age range rarely occurred in the South China, except for the metamorphosed volcanic rocks with ages of ca.…”

“…1a) with the Grenvillian orogenic belts in other continents to suggest possible interrelationship between South China and its circumjacent blocks. Consequently, different models have been proposed for the position of South China in the Rodinia: one model suggesting that South China was situated between western Laurentia and southeastern Australia (Li et al, 1995(Li et al, , 2002(Li et al, , 2008a(Li et al, , 2008bLi et al, 2014), whereas others proposing that the South China was located on the periphery of Rodinia near western Australia and India (Duan et al, 2011 and references therein;Zhao and Cawood, 2012;Cawood et al, 2013b). Yu et al (2008Yu et al ( , 2010 have also argued that the South China lay adjacent to India and East Antarctica (northern Gondwana) during the period from the breakup of Rodinia to assembly of Gondwana.…”

Geochronological, geochemical and Nd–Hf–Os isotopic fingerprinting of an early Neoproterozoic arc–back-arc system in South China and its accretionary assembly along the margin of Rodinia

“…18c), the amalgamation of the already assembled Cathaysia took place with the Yangtze along the Jiangnan domain and resulted into the closure of the Jiangnan arc-back-arc basin, which finally created the united SCB along the Jinningian orogen. The process of northwesterly episodic amalgamation for the eastern SCB constitute part of an exterior accretionary orogen situating between Western Australia and East Antarctica around the periphery of Rodinia (e.g., Cawood et al, 2007Cawood et al, , 2010Cawood et al, , 2013.…”

“…1) associated with the assembly of Rodinia and to occupy an intracratonic keystone position between Australia and Laurentia (e.g., Li et al, 1995Li et al, , 2002Li et al, , 2008cCharvet et al, 1996;Ye et al, 2007;Boger et al, 2000;Li et al, 2008bLi et al, , 2009). However, an interior location within Rodinia does not fit readily with the presence of early Neoproterozoic (∼970-900 Ma) rock units of arc or back-arc basin affinities in the easternmost Yangtze Block (e.g., Shui, 1988;Li et al, , 2008aLi et al, 2006Li et al, , 2009Ye et al, 2007;Gao et al, 2009;Chen et al, 2009a,b;Shu et al, 2011;Cawood et al, 2013). Furthermore, additional age-data suggest that final assembly along the Jiangnan domain did not occur until at least ∼830 Ma (e.g., Wang et al, 2006Wang et al, , 2007bWang et al, , 2008bWang et al, ,c, 2011aWu et al, 2006;Zhou et al, 2004Zhou et al, , 2009Zheng et al, 2007Zheng et al, , 2008Zhao et al, 2011;Zhang et al, 2011cZhang et al, , 2012cZhao and Guo, 2012).…”