中文摘要：

从层序地层学角度进行浅水三角洲成因分析，认为黄河口凹陷明下段浅水三角洲沉积水体深浅变化是控制浅水三角洲砂体展布的主要因素。在总结出浅水三角洲有别于一般三角洲沉积的独特特征并与传统的河流相沉积比较后认为，浅水三角洲沉积体系具备更好的储盖组合关系及优越的成藏条件，可为浅层的油气勘探尤其是岩性油气藏勘探提供更可靠的保障。

英文摘要：

From the perspective of sequence stratigraphy, this paper analyzes the causes of shallow-water delta and proposes that water body depth change is the major factor that controls extension of shallow-water deltaic sand bodies. Also, this paper summarizes the unique characteristic of shallow-water delta different with common delta deposition and makes comparison with conventional fluvial deposition. In the end, it proposes that deposition system of shallow-water delta has better combination of reservoir and cap rock and superior condition for oil and gas accumulation, which can provide more reliable evidence for oil and gas exploration of shallow reservoirs, especially lithologic reservoirs.