Abstract Organic maturity levels of the Silurian and Carboniferous shales in the western and central Taurus regions are thermally over mature and therefore they can still contain shale gas. A total of 43 samples were determined using TOC analysis and Rock-Eval Pyrolysis to indicate the first basic hydrocarbon source rock characteristics. Average TOC values of Silurian samples range from 0.61 to 2.56% in wt. However, Carboniferous samples have low TOC values of less than 1.0%. Present low hydrogen index values between 2 and 14 mg HC/g TOC and average oil saturation index values ranging from 8 to 17 indicate that there is no hydrocarbon generation. X-Ray Diffraction data for the samples show the presence of quartz, feldspar, calcite, dolomite, mica and clay minerals. The calculated illite crystallinity values of the samples usually fall into the diagenetic zone and wet gas generation zone corresponding to the late catagenesis stage. Sharpness ratio or Weaver Index values of the samples, except for Kayrak formation samples, fall into the diagenetic zone. On the other hand, the calculated sharpness ratios of the Kayrak Formation samples between 2.35 and 5.15 indicate anchizone. These results show that there is a consistency between the IC values. Sharpness Ratios and Rock-Eval pyrolysis data. The data obtained in this study would be important during the evaluation of unconventional hydrocarbon resources in the future.

中文翻译：

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土耳其西部和中部 Taurus 地区志留系和石炭系页岩的油气潜力

摘要 金牛座西部和中部志留系和石炭系页岩有机成熟度为热过成熟，尚可含页岩气。使用 TOC 分析和 Rock-Eval 热解法确定了总共 43 个样品，以表明第一个基本烃源岩特征。志留纪样品的平均 TOC 值范围为 0.61 至 2.56%（重量）。然而，石炭纪样品的 TOC 值较低，低于 1.0%。当前介于 2 和 14 mg HC/g TOC 之间的低氢指数值和范围从 8 到 17 的平均含油饱和度指数值表明没有碳氢化合物生成。样品的 X 射线衍射数据显示存在石英、长石、方解石、白云石、云母和粘土矿物。计算得到的样品伊利石结晶度值通常属于后生后期对应的成岩带和湿气生成带。除 Kayrak 地层样品外，样品的锐度比或 Weaver Index 值均属于成岩带。另一方面，计算出的 Kayrak 组样品的锐度比在 2.35 和 5.15 之间表明是近地层。这些结果表明 IC 值之间存在一致性。锐度比和 Rock-Eval 热解数据。本研究获得的数据对未来非常规油气资源评价具有重要意义。落入成岩带。另一方面，计算出的 Kayrak 组样品的锐度比在 2.35 和 5.15 之间表明是近地带。这些结果表明 IC 值之间存在一致性。锐度比和 Rock-Eval 热解数据。本研究获得的数据对未来非常规油气资源评价具有重要意义。落入成岩带。另一方面，计算出的 Kayrak 组样品的锐度比在 2.35 和 5.15 之间表明是近地带。这些结果表明 IC 值之间存在一致性。锐度比和 Rock-Eval 热解数据。本研究获得的数据对未来非常规油气资源评价具有重要意义。