Study of sedimentary environment and geochemistry of Kashkan Formation sandstones

Authors

Department of Geology, Faculty of Sciences, Lorestan University

Abstract

Kashkan Formation (Paleocene-Middle Eocene) consists of conglomerate, sandstone and siltstone facies and the maximum extent of this formation is in Lorestan area. In this study, fifteen lithofacies as Gm, Gms, Gp, Gt, Sm, Sp, St, Sh, Shr, Slr, Slp, Sfl, Fsm, Fm and L were recognized. By using lithofacies, three sedimentary environments( brided river low- sinousity meandring river and coastal plain) hae been separated. XRF analyses of sandstones show that in proximal  facies sandstone facies Fe2o3, Sio2 and Al2o3 are abundant. Against distal sandstone facies Mgo, Cao, U and Sr are high and in coastal facies Na2o, p2o5, K2o and Tio2 are low.
 

Keywords


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