Pleistocene

Deposition of Chad Formation

Late Tertiary to Quartenary

Basalt (Biu and Longuda Plateux), trachyte and phonolite

Paleocene

Uncomformable deposition of Keri Keri Formation

Cretaceous

Maastrichtian

Deposition of Dukul, Pindiga, Jessu

Lower Turonian to Campanian

Gongila Formation (marine beds of clays, shales limestone)

Cenomanian

Albian

Yolde Formation ( with calcareous units) Bima Sandstone deposition

Mesozoic

147 ± 7 Ma (103 ± 5 Ma)

Alkaline rhyolites (Burashika) and transitional alkaline basalts (Shani)

Precambrian

620 - 590 Ma

Post-kinematic emplacement of granitoids (biotite, biotite-muscovite granites and pegmatites)

680 - 620 Ma

Migmatite and ante to synkinematicgranitoids (granite gneiss)

Deposition of sedimentary succession