CAJ | 학술논문

依据研究区野外露头剖面及钻孔资料，通过岩性、沉积构造、地球化学、地球物理及古生物等相标志研究，认为研究区山西组为辫状河沉积，发育有不对称的“二元结构”，成分及结构成熟度低，水动力条件较强，从中识别出三种亚相(河床亚相、河漫亚相及堤岸沉积亚相)、六种微相（河床滞留、心滩、河漫滩、河漫沼泽、天然堤及决口扇），并对各亚相及微相的沉积特征进行了分析。
의거연구구야외로두부면급찬공자료，통과암성、침적구조、지구화학、지구물리급고생물등상표지연구，인위연구구산서조위변상하침적，발육유불대칭적“이원결구”，성분급결구성숙도저，수동력조건교강，종중식별출삼충아상(하상아상、하만아상급제안침적아상)、륙충미상（하상체류、심탄、하만탄、하만소택、천연제급결구선），병대각아상급미상적침적특정진행료분석。
On the basis of field outcrop sections and drilling data, studied facies indices of lithology, sedimentary structure, elemental geochemistry, well logging geophysics and paleontology, considered that the Shanxi Formation in the area is a kind of braided river sedi-ments, developed asymmetric“dualistic structure”, with low composition and structural maturity, strong rather hydrodynamic condition. Three subfacies (channel, fluviatile floodplain and bank deposits) and six microfacies (channel-lag, batture, alluvial flat, backswamp, le-vee and crevasse splay) can be identified therefrom. Finally, sedimentary characteristic analysis of each subfacies and microfacies car-ried out.