The Superior Craton or Superior Province is an Archean craton. The Indian Craton includes five major cratons. These strata unconformably overlie Archean strata of the Superior craton and Proterozoic Richmond Group. Precambrian tectonics of the North China Craton is complicated. The Acasta Gneiss is a tonalite gneiss in the Slave craton in Northwest Territories, Canada. The interior of the main continental landmass includes an extensive granitic core called a craton. South Africa's Kaapvaal craton and Western Australia's Pilbara craton have similar early Precambrian cover sequences. An outward-thickening veneer of younger minimally deformed sedimentary rock covers much of the craton. Shandong is part of the Eastern Block of the North China craton. The Southern Cross Province lies in the central area of the Yilgarn craton. The mountains lie on the eastern edge of the Kaapvaal Craton. This is an area of active drainage dissecting a Tertiary plateau in Yilgarn Craton. The Kaapvaal craton in southern Africa became stable around 3.1 Gya. The gold-carbonate association is also apparent in the Gawler Craton, South Australia. Moscow Oblast is located in the central part of the East European craton.