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重力流沉积与矿产资源（特别是油气资源）的关系是重力流沉积研究的一项重要内容。根据岩心观察、薄片鉴定、测井相分析和地震资料解释的结果，对陆东凹陷交南断鼻九佛堂组重力流沉积的类型、平面展市等进行了研究。认为陆东凹陷下白垩统九佛堂组总体上为一套半深湖─深湖相泥页岩油源层，重力流沉积的水下扇砂岩夹于泥页岩中构成了好的储集层。重力流沉积的类型有碎屑流、高密度浊流和低密度浊流，平面分布为水下扇。研究区内主要发育中扇和外扇亚相，中扇可分为中扇内缘沟道和外缘叶状体两个微相。中扇内缘沟道由碎屑流和高密度浊流组成，中扇外缘叶状体由高密度浊流和低密度浊流组成。研究区内有63％的油层由叶状体砂岩组成，有32％的油层由沟道砂岩组成。叶状体砂岩孔隙度高、渗透率大，排驱压力低，是最好的储集层；沟道砂岩次之。水下扇砂岩储集物性不受泥质含量影响，但受碳酸盐胶结物影响明显。得出的结论对该区油气的进一步勘探开发有重要意义。
The relationship between gravity flow deposition and mineral resources (especially oil and gas resources) is an important part of gravity flow sedimentation research. Based on the results of core observation, thin slice identification, well log facies analysis and seismic data interpretation, the types of gravity flow deposits and the plane market of Jiufotang Formation in the southern part of Luodong Sag were studied. It is considered that the Lower Cretaceous Jiufotang Formation in the Luodong depression is generally a set of semi-deep lacustrine mudstone-shale oil source. The gravity flow-deposited subaqueous fan sandstone sandwiched between shale deposits constitutes a good reservoir Floor. Gravity flow sediment types are debris flow, high-density turbidity and low-density turbidity, the plane distribution of underwater fans. The main development in the study area fan and outer fan subphase, fan can be divided into the medial foraminous channel and the outer edge of the two microfacies. The middle fan channel consists of debris flow and high-density turbidity flow, and the outer fan of middle fan consists of high-density turbidity flow and low-density turbidity flow. In the study area, 63% of the oil layer is composed of frond sandstone, and 32% of the oil layer is composed of channel sandstone. Frond sandstone has the characteristics of high porosity, high permeability and low drainage pressure, which is the best reservoir; followed by channel sandstone. Subaqueous fan sandstone reservoir properties are not affected by shale content but are significantly affected by carbonate cements. The conclusion drawn is of great significance to the further exploration and development of oil and gas in this area.