中文摘要：

一把巨大的海底的扇子通过研究被发现地震并且在在西北的华南的 Yinggehai 盆和 Qiongdongnan 盆的有约束力的地点的地上凿穿数据海。扇子，主要形成了在期间晚中新世(Huangliu 时期) 在 10000 km2 和超过 2000 m 的最大的厚度上有一个区域。它被一种楔形的倾斜的 progradation 配置在罢工侧面上在剧降侧面和一种圆丘般的双向 progradation 配置上描绘。从位于扇子的前面方面的井 YC35-1-2 的核心和记载的数据显示沙的严肃流动存款在上面的 Huangliu 形成在到沙和泥的 interbeds 的更低的 Huangliu 形成和变化是占优势的。扇子与 bathyal 在联合作为一把 sand/mud-rich 潜水艇扇子被解释 Huangliu 的地质的背景时期。起源的初步的分析也不显示那 Guiren 在西方也不海南高举在北方高举能为海底的扇子用作主要起源。起源被认为从红河，基于在 Yinggehai 盆的 Huangliu 形成的沉积外形学习。扇子因此作为红河海底的扇子被说出。红河 depositional 系统由红河海底的扇子，红河三角洲，和联系海底的峡谷组成。红河海底的扇子的发现为西藏的高原的 uplift 和红河差错地区的发展的研究提供重要信息。而且，它也在北华南海为深海的烃探索指出一个新方向。

英文摘要：

A huge submarine fan is discovered through the research of the seismic and borehole data in the binding site of Yinggehai basin and Qiongdongnan basin in northwestern South China Sea. The fan, mainly formed during Late Miocene （Huangliu period） has an area over 10000 km^2 and maximum thickness of over 2000 m. It is characterized by a wedge-shaped oblique progradation configuration on the dip profile and a hummocky bidirectional progradation configuration on the strike profile. The core and Logging data from the well YC35-1-2 located in the front side of the fan indicate that sandy gravity flow deposits are predominant in lower Huangliu Formation and change to interbeds of sand and mud in upper Huangliu Formation. The fan is interpreted as a sand/mud-rich submarine fan in combination with the bathyal geological background of Huangliu period. A preliminary analysis of provenance indicates that neither the Guiren Uplift in the west nor the Halnan Uplift in the north can serve as the major provenance for the submarine fan. The provenance is considered to be from the Red River, based on the sedimentary facies study of the Huangliu Formation in Yinggehai basin. The fan is thus named as ＂Red River submarine fan＂. The Red River depositional system consists of the Red River submarine fan, the Red River delta, and associated submarine canyons. The discovery of the Red River submarine fan provides important information for the research of the uplift of Tibetan Plateau and the evolvement of Red River Fault Zone. Furthermore, it also points out a new direction for the deepwater hydrocarbon exploration in the northern South China Sea.