The up to 450 m-thick Upper Jurassic Lemeš Formation includes organic-rich deep-water (max. ~ 300 m) sedimentary rocks deposited in the Lemeš Basin within the Adriatic Carbonate Platform (AdCP). The Lemeš Formation was investigated regarding (1) bio- and chemostratigraphy, (2) depositional environment, and (3) source rock potential. A multi-proxy approach—microfacies, Rock–Eval pyrolysis, maceral analysis, biomarkers, and stable isotope ratios—was used. Based on the results, the Lemeš Formation is subdivided from base to top into Lemeš Units 1–3. Deposition of deep-water sediments was related to a late Oxfordian deepening event causing open-marine conditions and accumulation of radiolarian-rich wackestones (Unit 1). Unit 2, which is about 50 m thick and Lower early Kimmeridgian (E. bimammatum to S. platynota, ammonite zones) in age, was deposited in a restricted, strongly oxygen-depleted basin. It consists of radiolarian pack- and grainstones with high amounts of kerogen type II-S organic matter (avg. TOC 3.57 wt.%). Although the biomass is predominantly marine algal and bacterial in origin, minor terrestrial organic matter that was transported from nearby land areas is also present. The overlying Unit 3 records a shallowing of the basin and a return to oxygenated conditions. The evolution of the Lemeš Basin is explained by buckling of the AdCP due to ophiolite obduction and compressional tectonics in the Inner Dinarides. Lemeš Unit 2 contains prolific oil-prone source rocks. Though thermally immature at the study location, these rocks could generate about 1.3 t of hydrocarbon per m² surface area when mature.

厚度达 450 m 的上侏罗统 Lemeš 地层包括沉积在亚得里亚海碳酸盐台地 (AdCP) 内 Lemeš 盆地的富含有机物的深水（最大 ~ 300 m）沉积岩。 Lemeš 地层的研究涉及 (1) 生物地层学和化学地层学、(2) 沉积环境和 (3) 烃源岩潜力。使用了多代理方法——微相、岩石评估热解、显微组分分析、生物标志物和稳定同位素比。根据结果​​，Lemeš 地层从底部到顶部细分为 Lemeš 单元 1-3。深水沉积物的沉积与牛津晚期的加深事件有关，该事件导致开放海洋条件和富含放射虫的泥板岩的积累（单元1）。 2 号单元厚约 50 m，年龄为早启莫里阶（E. bimammatum至S. platynota，菊石带），沉积在一个有限的、严重缺氧的盆地中。它由放射虫堆积物和颗粒岩组成，含有大量干酪根 II-S 型有机质（平均 TOC 3.57 wt.%）。尽管生物量主要来源于海洋藻类和细菌，但也存在从附近陆地区域运输的少量陆地有机物。上覆 3 号机组记录了盆地变浅并恢复到含氧条件。莱梅什盆地的演化可以通过蛇绿岩仰冲和内第纳里德山脉挤压构造导致的 AdCP 屈曲来解释。 Lemeš 2 号单元含有丰富的易产油烃源岩。尽管研究地点的热力尚未成熟，但这些岩石成熟后每 m ²表面积可产生约 1.3 吨碳氢化合物。