Lithofacies Analysis and Fining Upward Cycles of Siliciclastic Sediments of Dahu Formation (Early Cambrian) East and Southeast of Zarand, NW Kerman

For lithofacies analysis and recognization of architecture elements of silisiclastic sediments of Dahu Formation (Late Camberian), two stratigraphy sections at Dahuieh (type section) and Gazuieh have been measured and the thickness are 240 and 227 meters, respectively. This study led to identification of 9 lithofacies and 5 architecture elements. Lithofacies classified into three categories including coarse grain (Gcm), medium grain (Sp, St, Sh, Sl, Sr, Sm), and fine grain (Fl, Fm). The interpreted architecture elements are CH, LA, FF, CS, CR. Based on lithofacies and architecture elements, it is interpreted that these silisiclastic sediments may have been deposited in sand-bed meandering river. Sequence stratigraphy analysis show that the Dahu Formation formed during the sea level fall in the Early Camberian time. Many fining upward cycles, that have been formed the highstand system tract (HST), deposited during laterally migration of channel and subsidence of basin. We hope that this information can be used to basin analysis and paleogeographical reconstruction of the Early Camberian time in local and regional scales.