Two stratigraphic sections (Arjooieh and Firoozabad) of the Mymand anticline located in the Interior Fars sub-basin of the Zagros Mountains were measured and sampled in order to document sedimentological characteristics, microfacies types, and paleo-seagrasses indicators of the Oligocene succession (Asmari Fm.). Planktonic and benthic foraminifera and coralline red algae are the principal fossils from these strata. Foraminifera are represented by the following families: Soritidae, Peneroplidae, Austrotrillinidae, Alveolinidae, Planorbulinidae, Discorbidae, Lepidocyclinidae, Amphisteginidae, Rotaliidae, Nummulitidae, and Globigerinidae. Nine microfacies types were recognized, namely planktonic foraminiferal-peloidal packstone (MF1), bioclast nummulitid/Nerorotalia/Amphistegina packstone-grainstone-rudstone-floatstone(MF2), Neorotalia-echinoid coralline red algae packstone-grainstone (MF3), coral boundstone (MF4), coral/coralline red algae rudstone-floatstone-packstone-grainstone (MF5), diverse imperforate foraminifera bioclast packstone-grainstone (MF6), pelloid wackestone-packstone-grainstone (MF7), fenestrated mudstone and microbial mats (MF8), and anhydrite (MF9). MF1 indicates on outer ramp, MFs 2–4 represent middle ramp, and MFs 5–9 are interpreted as inner ramp environment. Paleo-seagrass indicators are consisting of foraminifera, hooked and tabular forms of coralline red algae, and corals. They were determined in MFs 5 and 6 reflecting the presence of vegetated environments within the middle-inner ramp setting. The Mymand anticline was dominated by the outer ramp environment at the start of the Rupelian. Middle to inner ramp environments prevailed during the Rupelian. The Chattian was correspond to the spread of inner ramp setting over the Mymand anticline.

中文翻译：

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伊朗西南部扎格罗斯盆地中央特提斯碳酸盐岩台地渐新世序列的微相分析和古生态学

对位于扎格罗斯山脉内部法尔斯次盆地的 Mymand 背斜的两个地层剖面（Arjooieh 和 Firoozabad）进行了测量和采样，以记录渐新世序列（Asmari Fm）的沉积学特征、微相类型和古海草指标。 .) 浮游和底栖有孔虫和珊瑚红藻是这些地层的主要化石。有孔虫由以下科代表：Soritidae、Peneroplidae、Austrotrillinidae、Alveolinidae、Planorbulinidae、Discorbidae、Lepidocyclinidae、Amphisteginidae、Rotaliidae、Nummulitidae 和 Globigerinidae。九种微类型的被认可，即浮游有孔虫，似球灰岩（MF1），生屑nummulitid / Nerorotalia / Amphisteginapackstone-grainstone-rudstone-floatstone(MF2), Neorotalia- 海棘状珊瑚红藻粉砂岩-颗粒石 (MF3)、珊瑚粉砂岩 (MF4)、珊瑚/珊瑚红藻粉砂石-浮石-粉砂石-颗粒石 (MF5)、多种无孔有孔虫生物碎屑颗粒粉砂石 (MF6)、胶体粉砂石-粉砂石-粒岩 (MF7)、有孔泥岩和微生物垫 (MF8) 和硬石膏 (MF9)。MF1 表示在外斜坡，MF 2-4 代表中间斜坡，MF 5-9 被解释为内斜坡环境。古海草指标由有孔虫、钩状和板状珊瑚红藻和珊瑚组成。它们是在 MF 5 和 6 中确定的，反映了中间内坡设置中植被环境的存在。Mymand 背斜以 Rupelian 开始时的外斜坡环境为主。中到内坡道环境在 Rupelian 期间盛行。