Geochemistry and Mineralogy of Clastic Sediments of Tukau Formation: Implications on Provenance and Tectonic Setting

Abstract

A study is proposed on the clastic sedimentary rocks of the Tukau Formation in the North-West Borneo using combined methods (i.e. geochemistry and petrography) to infer the provenance, tectonic setting and paleoweathering. Generally, Tukau sandstones are classified into quartz arenites , sublitharenites, litharenites, wacke and shale. Source rock is derived from the sedimentary to meta-sedimentary rocks dominated source with minor contribution from granitoids and ultramafic rocks. Tectonically, the Tukau Formation sedimentary rocks were deposited in a passive margin with minor extent towards active margin boundary.