The Paratethys area extends from Central Europe to the borders of the Caspian Sea in Central Asia and hosts a significant number of petroleum provinces, many of which have been charged by Eocene to Miocene source rocks of supra‐regional significance. These include highly oil‐prone Middle Eocene marls and limestones in the Eastern Paratethys (Kuma Formation and equivalents) which are several tens of metres thick. Estimates of the source potential index (SPI) indicate that the Kuma Formation in the northern Caucasus and the Rioni Basin (Georgia) may generate 1 to 2 tons of hydrocarbons per square metre (tHC/m²). This implies that the Kuma Formation may also be an important and additional source rock in the eastern Black Sea.

中文翻译：

---

巴拉提亚石油烃源岩：概述

帕拉提斯地区从中欧延伸至中亚里海边界，并拥有大量的石油省份，其中许多已由始新世注入到具有超区域意义的中新世烃源岩中。这些包括东部Paratethys（Kuma组及等价物）中高度易生油的中新世泥灰岩和石灰岩，其厚度为几十米。源电势指数（SPI）的估算表明，北高加索地区和里奥尼盆地（乔治亚州）的库马组每平方米可能产生1至2吨碳氢化合物（tHC / m ²）。这意味着库马组也可能是黑海东部重要而又重要的烃源岩。