GONDWANALAND AND GONDWANA 141 Figure 11 Mid Carboniferous, Namurian (327 311.5 Ma), palaeogeography Pink arrows in central and eastern Australia indicate farfield stress GN, glacigenic nonmarine sediment; R, Ross area; G, Gamburtsev area; W, Windhoek upland; C, Cargonian upland; PFB, proto fold belt; GM; glacimarine sediment; vertical orange shading, collisional stress and uplift Reproduced with permission from Veevers JJ (2004) Gondwanaland from 650 500 Ma assembly through 320 Ma merger in Pangaea to 185 100 Ma breakup: supercontinental tectonics via stratigraphy and radiometric dating Earth Science Reviews