Dalam rangka inventarisasi dan eksplorasi mineral industri dan batuan serta penganekaragaman bahan galian mineral,maka seksi batumulia dalam pelita 1V tahun anggaran 1988-1989
In 1983(the third year of the joint EGR-DSDM project CTA - 39d)geological fiel work was carried in parts of the meratus and bobaris ophiolite bolts,southeast kalimantan