We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Geochemical characteristics and geological significance of the aromatic hydrocarbons of source rocks from Jurassic Beipiao Formation in Lingyuan Area, Western Liaoning Province.
- Authors
SHI Lei; ZONG Wenming; SUN Qiushi; LI Yongfei; CHEN Shuwang
- Abstract
The aromatic fraction of source rock from the Jurassic Beipiao Formation in Lingyuan Area, Western Liaoning Province were analyzed by GC-MS. The geochemical characteristics of aromatics, which indicate the parent material type, sedimentary environment and maturity of organic matter, are analyzed to reveal the geological significance. The results indicate that naphthalene, phenanthrene and fluorene series were dominated components in total aromatic hydrocarbon content. The commonly detected markers of terrestrial higher plant origin, such as renene, fluoranthene, perylene, biphenyl, 1,2,5-TMN, and a small amount of compounds such as flexion series that represent low biological sources, as well as high abundance of oxyfluorene, reflect that the Beipiao Formation source rocks were formed in a sedimentary environment with open water bodies and sufficient oxygen content, and the organic matter is humic and sapropel humic type in the study area. Organic matter mainly comes from higher plants of terrestrial conferous and coniferous species, and lower organisms such as bacterial and algae also make a small contribution. In addition, the maturity parameters such as alkyl phenanthrene in aromatic hydrocarbons indicate that the thermal evolution of source rocks is generally in a low maturity stage, and a small part is in a mature stage. The maturity parameters such as alkyl naphthalene are affected by other factors and are not applicable to the maturity evaluation of Beipiao Formation in the study area. This result provides a reference for further exploration and development of the Jurassic Beipiao Formation n Lingyuan Area, Western Liaoning Province.
- Publication
Journal of Northeast Petroleum University, 2022, Vol 46, Issue 6, p100
- ISSN
2095-4107
- Publication type
Article