Mesoproterozoic subduction under the eastern edge of the Kalahari-Grunehogna Craton preceding Rodinia assembly: The Ritscherflya detrital zircon record, Ahlmannryggen (Dronning Maud Land, Antarctica)

Provenance of Early Paleozoic metasediments in the central Chinese Altai: Implications for tectonic affinity of the Altai-Mongolia terrane in the Central Asian Orogenic Belt

“…The Mesoproterozoic magmatism in the Gawler Craton is coeval to that of the Yilgarn Craton, with a similar peak at 1.18 Ga related to the Grenville orogenesis (Belousova et al, 2009). In the East Antarctica Block, the age spectrum is relatively simple and dominated by late Mesoproterozoic ages with a strong peak at 1.14 Ga, with minor zircon groups formed at~2.7 and~2.45 Ga (Bisnath et al, 2006;Clark et al, 2012;Grew et al, 2012;Marschall et al, 2013). The main zircon populations of the northern India Block have pre-Neoproterozoic age peaks at 2.55 and 1.77 Ga slightly older than those of the Tarim Craton, with more extensive Neoproterozoic magmatic records with peaks at 1178, 979 and 609 Ma (Decelles et al, 2004;Gehrels et al, 2006;Kaur et al, 2011;McKenzie et al, 2011;Ravikant et al, 2011).…”

“…Comparing relative probability plots for detrital zircons from the Paleozoic metasediments in the Chinese Altai and detrital zircons from several other blocks. Original data are from the references: the Chinese Altai ; and data in this study), the North China Craton (Darby and Gehrels, 2006;Zhou et al, 2008;Wan et al, 2011;Liu et al, 2012bLiu et al, , 2013, the Siberia Craton (Khudoley et al, 2001;Wang et al, 2011;Gladkochub et al, 2013), the Tarim Craton Zhang et al, 2011Zhang et al, , 2012Zhu et al, 2011;Wang et al, 2013), the Yilgarn Craton (Cawood et al, 2003;Veevers et al, 2005;Pidgeon and Nemchin, 2006), the Gawler Craton (Swain et al, 2005;Belousova et al, 2009), the East Antarctica Block (Bisnath et al, 2006;Clark et al, 2012;Grew et al, 2012;Marschall et al, 2013), the northern India Block (Decelles et al, 2004;Gehrels et al, 2006;Kaur et al, 2011;McKenzie et al, 2011;Ravikant et al, 2011), and the South China Block (Wan et al, 2007;Wang et al, 2007Wang et al, , 2010bXu et al, 2007;Sun et al, 2009;Yu et al, 2010;Li et al, 2011). materials for the Early Paleozoic metasediments in the Chinese Altai. Therefore, we suggest that the Tarim Craton is most likely the main source of old detritus of the Early Paleozoic metasedimentary rocks in the Chinese Altai, which therefore suggests that the whole AltaiMongolia terrane has a close tectonic affinity to the Tarim Craton.…”

Western Australia-Kalahari (WAlahari) connection in Rodinia: Not supported by U/Pb detrital zircon data from the Maud Belt (East Antarctica) and the Northampton Complex (Western Australia)

“…This implies that the Maud Belt developed along, or at least close to, the margin of Proto-Kalahari and favours models with subduction under Kalahari (e.g. Bisnath et al, 2006;Grosch et al, 2007;Marschall et al, 2013) rather than away from the craton (e.g. Bauer et al, 2003a;Groenewald et al, 1995).…”

Reassembling Gondwana: A new high quality constraint from vibroseis exploration of the sub‐ice shelf geology of the East Antarctic continental margin

“…[] and Marschall et al . [], based on similar trace element characteristics of the Mesoproterozoic rocks, and on the geochemical provinciality of Jurassic lavas Luttinen et al . [].…”