CAJ | 학술논문

通过对钻探、地震及露头资料的研究，将准噶尔盆地东缘三工河组划分为两个三级层序。在地震和测井剖面上识别出挠曲坡折带和断裂坡折带两种构造坡折带。坡折带对于研究区层序和沉积的控制作用主要表现为：对于层序，“径向沟梁辐射，纬向阶梯分布”的坡折带体系使得本区三工河底部低水位体系域发育，坡折带加强河道侧向迁移，削弱河道下蚀，增加准层序数量，坡折带高部位低水位体系域会侵蚀下覆地层；对于沉积，在精细开发区的三工河组识别出6种沉积微相组合，顺物源连井剖面上自下而上识别出3个沉积微相组合序列，陡坡区发育富河口坝三角洲前缘，缓坡区发育富河道三角洲前缘。
통과대찬탐、지진급로두자료적연구，장준갈이분지동연삼공하조화분위량개삼급층서。재지진화측정부면상식별출뇨곡파절대화단렬파절대량충구조파절대。파절대대우연구구층서화침적적공제작용주요표현위：대우층서，“경향구량복사，위향계제분포”적파절대체계사득본구삼공하저부저수위체계역발육，파절대가강하도측향천이，삭약하도하식，증가준층서수량，파절대고부위저수위체계역회침식하복지층；대우침적，재정세개발구적삼공하조식별출6충침적미상조합，순물원련정부면상자하이상식별출3개침적미상조합서렬，두파구발육부하구패삼각주전연，완파구발육부하도삼각주전연。
The Sangonghe Formation on the eastern margin of the Junggar Basin, Xinjiang is divided, on the basis of cores, seismic data and well logs, into two third-order sequences J1 SQ1 and J1 SQ2, each of which may be involved into the lowstand, transgressive and highstand systems tracts. Two types of slope breaks are recognized in the seismic profiles and well-tie sections, including the textural and faulted slope breaks. The slope break system distributed in radial and latitudinal directions led to the development of the lowstand systems tract at the base of the Sangonghe Formation. Six sedimentary microfacies associations are arranged into three sedimentary microfacies association sequences in the Sangonghe Formation. The slope breaks in the steep slope zones are significant in that they may facilitate the development of the lowstand systems tract, in which the channel-mouth bar delta front sandstones in the steep slope zones are interpreted as the favourable areas for hydrocarbon accumulation.