keywords: : Core description; Lithofacies; Facies association; Environments; sedimentary succession; characterization
The results of detailed geological core description and characterization of depositional environment of the sedimentary succession in VIBRE-001 Well is supplied in this paper. An interpretation for these sedimentary units was carried out by using integration of lithofacies characterization and sedimentologic log data. Thirteen lithofacies were identified in this study: silty shale, black shale, grey shale, bioturbated sand-dominated heterolithic, bioturbated mud-dominated heterolithic, laminated sandstone, bioturbated sandstone, wavy bedded heterolithic, coal, underclay, cross-bedded sandstone and planar laminated fine-very fine grained sandstone. Combinations of closely related lithofacies were grouped into coastal barriers-shelf, fluvial dominated upper delta plain, lower delta plain, trangressive sands and offshore shelf facies associations. The primary depositional environments are deltaic-fluvial, barrier islands and tidal flat that suggests deposition in environments fluctuating within marginal marine setting under a terrestrial influence.