Since their first occurrence in the late Cretaceous, seagrasses have played a major role carbonate production and sedimentation across shallow-water nearshore environments, sustaining prolific factory contributing to sediment accumulation through combination of baffling trapping effects. Most reported Palaeogene seagrass occurrences developed oligo−mesotrophic shallow warm-water habitats are ch...

A sedimentological investigation of Miocene deposits at the periphery Zagros foreland basin , Kurdistan Region, NE Iraq, reveals a cyclical arrangement carbonate-evaporite ramp facies . The study aims to provide rare insight into lateral variability microfacies and environments such systems' inner shoreline Between 10 40 depositional cycles are preserved, separated by flooding surface, recordin...

This study shows that ichonology can be used to refine sequence stratigraphy as well as to interpret the depositional environment of the Kalat Formation (Upper Maastrichtian) in the Central Kopeh- Dagh Basin (NE Iran), Dareh-Gaz section. Field studies and petrography of these deposits led to recognize four lithofacies and nine subfacies that formed in the tidal flat (lithofacies A), lagoon (lit...

The present study focuses on facies analysis and the reservoir characteristics of the Asmari Formation in the Aghajari oilfield (located in the Zagros fold-thrust belt, southwest Iran), and how they are linked to depositional environments and reservoir characteristics. This formation consists of about 380 m carbonates with some siliciclastic intercalations. Based on the integration of 1200 m of...

Records of shallow-marine ramps with the mixing carbonate and siliciclastic sediments are common throughout geological time. All these records have pure deposits as end members, occurring contemporaneously in distinct depositional regions along ramp, transitional hybrid facies between them. The two member can mix different scales alternate time due to climatic changes regressions transgressions...

this study shows that ichonology can be used to refine sequence stratigraphy as well as to interpret the depositional environment of the kalat formation (upper maastrichtian) in the central kopeh- dagh basin (ne iran), dareh-gaz section. field studies and petrography of these deposits led to recognize four lithofacies and nine subfacies that formed in the tidal flat (lithofacies a), lagoon (lit...

This paper aims to evaluate and compare the effects of different methods of ramp metering on the operational conditions of traffic flow at three levels: the network level (including the freeway and its connected ramps), the entrance ramp, and the upstream segment of the entrance. To achieve this aim, one of the most important urban freeways in the metropolis of Isfahan was selected. The traffic...

The middle Santonian-lower Campanian carbonate-mud dominated succession deposited in the northeastern margin of South Iberian Ramp (La Cañadilla Fm, NE Spain) shows a complex set interfingered facies developed low-energy and low-gradient shallow-marine to coastal environment. Three belts characterize environment reconstructed this work: (1) shallow marine lagoon by radiolitid rudist limestones ...

Lower Pliocene temperate carbonates exhibit landward-downlapping beds at the southern margin of the Carboneras Basin in south-eastern Spain. This rarely documented stratal geometry resulted from the accumulation of bedded bioclastic carbonate sand and gravel by longshore currents along a spit platform located a few hundred metres from the palaeoshoreline. The top of the spit platform was covere...