New SHRIMP, Rb/Sr and Sm/Nd isotope and whole rock chemical data from central Mozambique and western Dronning Maud Land, Antarctica: Implications for the nature of the eastern margin of the Kalahari Craton and the amalgamation of Gondwana

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

“…Suggested limit of Grunehogna Craton from Marschall et al [], Grantham et al . [], Golynsky and Jacobs [], Luttinen and Furnes [], and Corner [] shown by white rectangular dashes.…”

“…The main uncertainties east of South Africa are the nature of the crust forming the submarine Mozambique Ridge [ Thompson et al ., ; Ben Avraham et al ., ; König and Jokat , ; Leinweber and Jokat , ], basement below the submarine Northern Natal Valley [ Goodlad et al ., ; Tikku et al ., ] and below the Mozambique Coastal Plain [ Gwavava et al ., ; Leinweber and Jokat , ] (Figure ). Along the East Antarctic continental margin, the issues have been the extent of a volcanic wedge generated through Jurassic rifting and seafloor spreading [Hinz, ; Hinz and Krause , ; Cox , ; Hinz et al ., ], the boundary between continental and oceanic crust [ Hübscher et al ., ; Leitchenkov et al ., ; Jokat et al ., , ] or conjugate geological [ Wolmarans and Kent , ; Barton et al ., ; Groenewald et al ., ; Luttinen and Furnes , ; Frimmel , ; Grosch et al ., ; Grantham et al ., ; Marschall et al ., ] and geophysical markers [ Corner , ; Sahu , ; Golynsky and Aleshkova , ; Riedel et al ., , ] such as outline of the Archean Grunehogna Craton, the continuation of the Mozambique Belt, and the East African‐Antarctic orogeny into Antarctica [ Groenewald et al ., ; Jacobs et al ., , ; Shackleton , ; Engvik et al ., ]. The consequence of considering areas of unknown thick crust as either extended continental or transitional has been “loose” fits [ Martin and Hartnady , ] and implied that the onset of seafloor spreading was delayed by 25–30 million years relative to the Jurassic volcanic event [ Watkeys , ].…”

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)

“…Bauer et al, 2003a;Jacobs et al, 1998). However, Archaean-Palaeoproterozoic Nd model ages from Sverdrupfjella indicate the involvement of older crust in this area (Grantham et al, 1999(Grantham et al, , 2011Grosch et al, 2007).…”

“…(For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.) Nunataks, into Dronning Maud Land, East Antarctica, and further into Mozambique Eglington and Armstrong, 2003;Golynsky and Jacobs, 2001;Grantham et al, 2011Grantham et al, , 1997Groenewald et al, 1991;Jacobs et al, 2008Jacobs et al, , 1993Thomas et al, 2000).…”

Geocronologia da região de Gondola-Nhamatanda (Centro de Moçambique)

“…Para fins de comparação foram também usados dados de granitoides de Chimoio apresentados em Grantham et al (2011) ( ANEXO VI). Sun et al (1980) No caso de amostras do monte Xiluvo, normalizadas para o manto primitivo, se observa anomalias negativas para Ba, Ce, P e Ti e anomalias positivas para o restante de elementos incompatíveis (Figura 15).…”