The opening of Neo-Tethys within Gondwanaland during the Guadalupian (transition signified a pivotal transgressive event) in the Permian Period. Consequently, an attempt has been undertaken to elucidate the sequence stratigraphy and palaeodepositional settings of fluvial sedimentary deposits encompassing coal and shale sediments within the Godavari Valley Coalfield, South India. The Total Organic Carbon (TOC) content across the examined samples exhibits a discernible range from 0.07 to 65.53 wt%, with reactive carbon, measured as Pyrolyzable Carbon (PC), displaying variations from 0.02 to 15.93 wt% and non-reactive carbon, characterized, as Residual Carbon (RC), spans a percentage range of 0–66.86 wt% within the selected samples. The predominant organic matter manifests as type III kerogen, except Sh-47, where type II kerogen is identified. The combination of Rock–Eval pyrolysis alongside palynofacies analysis facilitates the differentiation of significant system tracts arising from relative sea level fluctuations within the deposited terrestrial sequences. These tracts include swampy and flooded palaeomires settings. Terminologies denoting system tracts within the sequences are indicted as T-lst, T-hst, T-tst and T-mfs corresponding to the Low Stand System Tract (LST), High Stand System Tract (HST), Transgressive System Tract (TST) and Maximum Flooding Surface (MFS) respectively. A noteworthy one and half cycles are discerned within the sequence, predicted on Amorphous Organic Matter (AOM), TOC, Hydrogen Index (HI), PC and Gelification Index (GI) values. In the initial cycle, T-mfs is identified based on the preponderance of fluorescent AOM, coupled with the highest value of HI and PC. The ratio of opaque/translucent phytoclasts serves as a discriminant in delineating the boundaries of T-lst, T-tst and T-hst within the sequences, corroborating the aforementioned observation. This research serves as a preliminary assessment of the system tracts within fluvial environments. A more intricate, high-resolution exploration of deeper sequences holds the potential to furnish comprehensive insights for subsequent studies.

新特提斯洋在二叠纪瓜达卢普阶期间在冈瓦纳大陆内打开（过渡标志着一次关键的海侵事件）。因此，我们试图阐明印度南部戈达瓦里谷煤田内包含煤和页岩沉积物的河流沉积物的层序地层学和古沉积背景。所检查样品的总有机碳 (TOC) 含量显示出 0.07 至 65.53 wt% 的可辨别范围，其中活性碳（以热解碳 (PC) 的形式测量）显示出 0.02 至 15.93 wt% 的变化，而非活性碳的特征在于残余碳 (RC) 在所选样品中的百分比范围为 0–66.86 wt%。主要有机质表现为 III 型干酪根，但 Sh-47 除外，其中已鉴定为 II 型干酪根。岩石-评估热解与孢粉相分析相结合，有助于区分沉积陆地层序内相对海平面波动所产生的重要系统域。这些地区包括沼泽和洪水泛滥的古地环境。表示层序内的体系域的术语被表示为 T- lst、T- hst、T- tst和 T- mfs，分别对应于低位体系域 (LST)、高位体系域 (HST)、海侵体系域 (TST)和最大淹没表面（MFS）。根据无定形有机物 (AOM)、TOC、氢指数 (HI)、PC 和凝胶化指数 (GI) 值预测，在序列中发现了值得注意的一个半循环。在初始循环中，根据荧光 AOM 的优势以及 HI 和 PC 的最高值来识别T- mfs 。不透明/半透明植物碎屑的比率作为划定序列内T- lst、 T- tst和 T- hst边界的判别因素，证实了上述观察结果。这项研究是对河流环境内系统域的初步评估。对更深层次序列进行更复杂、更高分辨率的探索有可能为后续研究提供全面的见解。