CAJ | 학술논문

通过对松科1井样品的测试分析，在松辽盆地姚家组二、三段顶部至嫩江组二段底部地层中检测到了较高含量的伽马蜡烷，并据此确认了对应时期水体分层事件的存在。通过其与总有机碳（TOC）值和δ13Corg值剖面变化趋势比对发现，伽马蜡烷含量的高值与TOC高值和δ13 Corg负值对应良好，表明水体分层在一定程度上促进了嫩江组沉积时期缺氧事件的发生，进而对有机质的保存起到了积极的作用。这种水体分层与当时的海侵事件密切相关。
통과대송과1정양품적측시분석，재송료분지요가조이、삼단정부지눈강조이단저부지층중검측도료교고함량적가마사완，병거차학인료대응시기수체분층사건적존재。통과기여총유궤탄（TOC）치화δ13Corg치부면변화추세비대발현，가마사완함량적고치여TOC고치화δ13 Corg부치대응량호，표명수체분층재일정정도상촉진료눈강조침적시기결양사건적발생，진이대유궤질적보존기도료적겁적작용。저충수체분층여당시적해침사건밀절상관。
By the analysis of samples from SK-1, high content gammacerane was detected in the strata from the top of the 2nd and 3rd member of Yaojia formation to the bottom of the 2nd member of Nenjiang Formation, Songliao Basin, which suggesting that water strat-ification occurred during this period.Compared with the total organic carbon(TOC) andδ13Corgdata, the high contents of gammacer-ane correspond well with the high values of TOC and the negative values of δ13Corg.This correspondence suggests that water stratifica-tion led to the anoxic environment in the Songliao Paleo-lake, which contributed to the preservation and deposit of organic matter dur-ing the sedimentary period of Nenjiang Formation .It is inferred that the water stratification is related to the marine incursion in the Songliao Basin.