Eovariscan and Variscan cyles (Stampfli et al., 2001). Gondwana drift history (in sequence) from Late Silurian to Late Carboniferous. IC=Indochina, including Borneo;
KT= Karakum-Turan; KZ=Kazakhstan; Mug=Mugdozar ocean;
nC=north China; nT=north Tibet (Qiantag); Pp=Paphlagonian ocean;
sC=south China; Tm=Tarim.