The Prydz Bay region of Antarctica is the immediate recipient of ice and sediments transported by the Lambert Glacier, the single largest outflow from the East Antarctic Ice Sheet. The continental slope and rise provide records covering multiple glacial cycles and containing paleoclimatic information. Marine geological and geophysical data collected from the continental shelf and adjacent slope of Prydz Bay, Antarctica, including seismic reflection data, bathymetry, and core records from ODP drilling sites, reveal the history of glacial sediment transport and deposition since the early Pliocene times. Seismic facies are interpreted in terms of episodes of slope progradation, contourite, turbidite, trough-mouth fan, and mass transport deposition. Two seismic units with estimated age of early to late Pliocene and late Pliocene to recent have been analyzed in detail for the area immediately offshore the Lambert Glacier and Prydz Bay and the adjacent Mac. Robertson margin. The upper slope is dominated by episodic mass transport deposits, many of which accumulated to form a trough mouth fan since Early Pliocene times. The trough mouth fan contrasts with the adjacent steep (4–6°) continental slope of the Mac. Robertson margin, where glacigenic sediments have been transported down slope as high-velocity turbidity currents via submarine channels. The distal region exhibits evidence for contrasting effects of high-energy, traction-dominated versus lower-energy, fallout-dominated suspension flows. The counter-clockwise Coriolis force modifies the erosion and deposition patterns of turbidity currents creating an asymmetric channel-levee architecture. Since the early Pliocene, turbidite sedimentation surpassed the amount of sediment reworked and transported by westward-flowing contour currents along the base of slope. On the continental rise, contourites and sediment waves were deposited in response to enhanced bottom-water formation, which is consistent with climatic cooling since late Pliocene times. This study, based on existing seismic reflection and ODP data, highlights the need for a future scientific ocean drilling proposal on the Prydz Bay continental slope and rise in order to more accurately determine the timing of the important events that have influenced the evolution of this margin.

南极普莱兹湾地区是兰伯特冰川运输的冰和沉积物的直接接收者，兰伯特冰川是南极东部冰原的最大单次流出。大陆的斜坡和上升提供了涵盖多个冰川周期的记录，并且包含古气候信息。从南极Prydz湾的大陆架和相邻斜坡收集的海洋地质和地球物理数据，包括地震反射数据，测深法和ODP钻井现场的岩心记录，揭示了自上新世以来冰川沉积物的运输和沉积历史。地震相的解释包括坡度增加，轮廓石，浊积石，槽口扇形和大量输运沉积。已对兰伯特冰川和普里兹湾近海及邻近Mac的两个地震单元进行了详细分析，估计了上新世晚期至上新世晚期和最近的上新世晚期。罗伯逊边缘。上斜坡主要由偶发的大规模输运沉积物控制，自上新世以来，许多沉积物积累形成了槽口扇形。槽形风扇与Mac的相邻陡峭大陆坡（4–6°）形成对比。罗伯逊边缘，冰川沉积物已通过海底通道作为高速浑浊流向下坡传输。远端区域显示出高能量，以牵引力为主的能量与较低能量，以尘埃为主的悬浮液的对比效果。逆时针的科里奥利力会改变浊流的侵蚀和沉积模式，从而形成不对称的通道堤结构。自上新世早期以来，浊积岩的沉积量就超过了沿斜坡底部由向西流动的等高线流返工和输送的沉积物量。在大陆上升时，响应于底部水形成的增加，沉积了轮廓岩和沉积波，这与上新世晚期以来的气候降温是一致的。这项研究基于现有的地震反射和ODP数据，强调了未来对Prydz湾大陆坡和上升的科学海洋钻探建议的必要性，以便更准确地确定影响该边界演化的重要事件的发生时间。 。