CAJ | 학술논문

陆相断陷湖盆陡坡带同沉积断裂对沉积充填过程具有明显的控制作用.东营凹陷北部陡坡带在古近纪沉积期断裂活动明显,主要受两条主断裂带控制,陈南断裂控制盆地演化,胜北断裂控制沉积体系的发育;碎屑物质主要来源于陈家庄凸起、滨县凸起和青坨子凸起;受断裂构造背景及物源控制,北部陡坡断裂带主要由冲积扇、扇三角洲、近岸水下扇、三角洲、滑塌浊积扇等5种沉积类型充填;时间和空间上,陡坡断裂带具有冲积扇→近岸水下扇→扇三角洲→近源滑塌浊积扇→湖泊的典型时空演化和充填模式;陡坡断裂带砂砾岩体由于具有物性好、近油源、构造活动强烈等特点, 是油气聚集的有利场所.
륙상단함호분두파대동침적단렬대침적충전과정구유명현적공제작용.동영요함북부두파대재고근기침적기단렬활동명현,주요수량조주단렬대공제,진남단렬공제분지연화,성북단렬공제침적체계적발육;쇄설물질주요래원우진가장철기、빈현철기화청타자철기;수단렬구조배경급물원공제,북부두파단렬대주요유충적선、선삼각주、근안수하선、삼각주、활탑탁적선등5충침적류형충전;시간화공간상,두파단렬대구유충적선→근안수하선→선삼각주→근원활탑탁적선→호박적전형시공연화화충전모식;두파단렬대사력암체유우구유물성호、근유원、구조활동강렬등특점, 시유기취집적유리장소.
Syndepositional rift obviously controls the deposition-filling process of the steep slope rift belt in the terrestrial fault basin. Two key rifts, I.e., Chenlan and Shengbei, are developed along the steep slope rift belt in Dongying terrestrial fault basin. The Chenlan rift controls the basin evolution, whereas the Shengbei rift controls the deposition. Clastic components in the steep slope rift belt chiefly came from Chenjiazhuang bulge, Binxian bulge and Qingtuozi bulge. Controlled by the tectonic setting and provenance, alluvial fan, fan-delta, nearshore subaqueous fan, delta and fluxoturbidite-fan were filled in the steep slope rift belt. There exists a typical temporal and spatial evolution in order of alluvial fan→mearshore subaqueous fan→fan→delta-fluxoturbidite→fan→lake. Having good physical properties and strong tectonic activities and being close to oil sources, the steep slope rift belt constitutes a favorable oil and gas accumulation place.