中文摘要：

由于 Gloeocapsomorpha Prisca 的重要性(G。prisca ) 在是否有 Kukersite 类型的石油探索期间，来源摇的大注意在主要的烃开发了的它收到了的充实的来源岩石，在更低的古生代的奥陶纪阶层属于 Kukersite 类型来源岩石，在 Tarim 盆采购上面、中间的奥陶纪的阶层。用到从在石灰的来源岩石的分析 kerogens 的热分解气体层析团摄谱仪使用法 -- 有中等成熟的泥墩，学习表明在 Tarim 盆的奥陶纪阶层有 Kukersite 类型来源岩石。热分解产品显示出一个低内容 > n-C19 正常链烷与一重要奇怪甚至在 n-C13 和 n-C17 之间的优势，长链的 alky 代替了 alkylbenzene 和 alkylthiophene 异构体和 5-N-alkyl-1 的特殊分发， 3-Benzenediol 并且它的相应。基于 G 的地理环境特征。Prisca，从在 Tarim 盆和从中间、上面的奥陶纪的 kerogen 热分解产品的特征的更低的古生代的石油系统的原油的分子的分布采购岩石，结果建议开发 G 是可能的更少。在主要的烃的充实 Prisca 的 Kukersite 类型来源岩石在 Tarim 盆在中间、上面的奥陶纪阶层采购岩石。然而，充实水藻的来源摇的 benthic macroalga 和 planktonic 是主要贡献者。

英文摘要：

Due to the importance of the Gloeocapsomorpha Prisca （G. prisca）-enriched source rocks, which belong to Kukersite-type source rocks in the Lower Paleozoic Ordovician strata, it has received great attentions during the petroleum exploration as to whether there are the Kukersite-type source rocks developed in the major hydrocarbon source strata of the Upper and Middle Ordovician in the Tarim Basin. Using pyrolysis-gas chromatography-mass spectrography to analyse kerogens from source rocks in the lime- mud mound with moderate maturity, study reveals that there are the Kukersite-type source rocks in the Ordovician strata of the Tarim Basin. The pyrolysis products showed a low content of 〉n-C19 normal alkanes with a significant odd-even predominance between n-C13 and n-Cl7, long-chain alky substituted alkylbenzene and alkylthiophene isomers and distinctive distribution of 5-N- alkyl-1, 3-Benzenediol and its homologous. Based on the geographic environment characteristics of G. Prisca, the molecular dis- tributions of crude oil from the Lower Paleozoic petroleum systems in the Tarim Basin and characteristics of kerogen pyrolysis products from the Middle and Upper Ordovician source rocks, the results suggested that it is less possible to develop the G. Pris- ca-enriched Kukersite-type source rocks in the major hydrocarbon source rocks in the Middle and Upper Ordovician strata in the Tarim Basin. However, the benthic macroalga and planktonic algae-enriched source rocks are the main contributors.