نقش آثار فسیلی در تشخیص محیط زر مصوری رسوبات دیستال (Distal) سیلیسی آواری - کربناته سازند امیران در لرستان

Amiran Formation in the Upper Cretaceous - Paleocene sequence of siliciclastic-carbonate sediments, which tries thrust belt-fold Zagros in the South West of the protrusions. The lower contact of the formation (Gurpi) with gradual formation of high (Tal-e-Zang) is abrupt. Proximal faciesThese are more Conglomrate with lithofacies Gm and Gms and Distal facies, are often sandstone and shale. Aside from these facies, the formation of carbonate facies can be seen. The most important effect of trace fossils is Paleodictyon isp, Zoophycosisp., Chondrites isp., Ophiomorpha annulata, Scolicia strozzi, Casmorhaphe sinuosa, Desmogropton ichtyforme, Helmintoida isp., Thalassinoides isp. Noted that the four sub- ichnofacies Ophiomorpha annulata / Ophiomorpha annulata - Paleodictyon / Paleodictyon / Nereites placed. Due to the facies and tracefossils environment of formation submarine fan was detected in the deep sea