The Seymareh (Lopha Limestone) Member of the Gurpi Formation (Upper Campanian) has been investigated to evaluate facies development and macrofaunal content and to interpret their palaeoecology and palaeoenvironment of the area. In this area, a total of seven exposed stratigraphic sections at Lurestan Province of south‐west Iran were measured and described. Depending upon the lithology, microfacies characteristics, and palaeontological criteria, the Seymareh Member could be subdivided into four stratigraphic units from base to top: Unit 1, fossiliferous grey shale interbedded with fine‐grained nodular limestone; Unit 2, thick massive fossiliferous limestone; Unit 3, grey and olive‐green argillaceous moderately fossiliferous limestone; and Unit 4, light grey to creamy, medium‐ to thick‐bedded fossiliferous limestone. Petrographically, the Seymareh facies are composed mainly of bioclastic grainstone, floatstone‐rudstone, and packstone/wackestone that contain a mixed benthic/pelagic microfossil associated with macrofossils (mainly oysters and echinoids). The obtained information confirmed that the Upper Campanian Seymareh Member was deposited in a shallow submarine palaeo‐canyon environment.

中文翻译：

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伊朗西南部卢勒斯坦省古皮组（上坎帕尼亚）的Seymareh（洛法石灰岩）成员的相发育，古生态学和古环境

已经对古皮组（上坎班期组）的Seymareh（Lopha灰岩）成员进行了研究，以评估相的发育和大型动物的含量，并解释该地区的古生态和古环境。在该地区，对伊朗西南部Lurestan省的七个裸露地层进行了测量和描述。根据岩性，微相特征和古生物学标准，Seymareh成员可从底部到顶部细分为四个地层单元：单元1，化石灰页岩与细粒节状灰岩交织；第2单元，厚厚的块状化石灰岩；第三单元，灰色和橄榄绿色的泥质中度化石的石灰石；以及第4单元，浅灰色至乳脂状，中层至厚层的化石石灰石。岩相学上 Seymareh相主要由生物碎屑型花岗岩，浮石—鲁斯特石和stone石/ w砂岩组成，其中包含与大型化石（主要是牡蛎和类chin骨类）相关的底栖/上层混合微化石。所获得的信息证实了上坎潘期世纪的塞玛勒成员沉积在一个浅海底古峡谷环境中。