Benthic foraminifera are significant indicators of habitat changes and useful for paleoenvironmental reconstruction. During the Permian period, variation in species, individual sizes, morphological characteristics different assemblages, such as fusulinids, is a clue to paleoecological interpretations. The eastern part Sichuan Basin, located near equator middle Permian, Guadalupian was precipita...

The main oil layer of Grape Flower in X Oilfield has entered the late stage high-extra-high water cut, and remaining distribution is uneven, so as to ensure development effect purpose block. Based on theory fine sedimentology, sedimentation characteristics PІ1 1 PІ2 2 deposition time units were studied. Combined with sedimentary logging data meandering river delta, facies model was classified d...

Field investigation, Microfacies analysis, and biostratigraphy have been carried out in the central parts of Ionian Basin (Aetoloakarnania area, Western Greece) order to decipher depositional environments that developed during accumulation Upper Cretaceous Eocene carbonate succession. Three different Standard types (SMF) observed, corresponding two (Facies Zones or FZ) a platform progradation. ...