Depositional Environment of Purbeck Formation

Microfossils and the Depositional Environment of the Gunflint Iron Formation

Sedimentary structures and depositional environment of the Ashin Formation in Nakhlak area, Central Iran

Middle to Upper Triassic (Upper Ladinian to Lower Carnian) deep-sea sedimentary rocks crop out across a large area west of Nakhlak village, Central Iran and have been named Ashin Formation. The up to 304m thick, turbiditic, siliciclastic Ashin Formation consists of alternating turbiditic, thin- and medium-bedded calcareous sandstones, purple, fine-grained volcaniclastic sandstones, and mostly g...

Microfacies analysis and depositional environment of the Fahliyan Formation (Lower Cretaceus), Abadan plain, West South of Iran (Arvand-field)

The Fahliyan Formation of Khami Group is hosting important hydrocarbon reserves in Iran and also is a main reservoir rock in the Abadan Plain oil fields which is Neocomian in age. In the studied wells its thickness is about 406 meters. In the Abadan Plain, the Fahliyan Formation transitionally overlies of the Garau Formation and its upper boundary changes into the Gadvan Formation. According to...

depositional environment and biostratigraphy of the upper sarvak formation in ahwaz oilfield (well no. 63)

carbonate successions of the sarvak formation (late albian? to mid-turonian) together with the carbonate of the ilam formation formed the second important hydrocarbon reservoirs in sw iran and persian gulf. facies analyses were carried out on the upper parts of the sarvak formation in western part of the ahwaz oilfield (az-63 well) to interpret depositional environment. lithologically, the uppe...

Microstratigraphy, trilobite biostratinomy, and depositional environment of the “Lower Cambrian” Ruin Wash Lagerstätte, Pioche Formation, Nevada

Article history: The uppermost 43 cm of Dy Received 13 November 2007 Received in revised form 4 March 2008 Accepted 3 April 2008