Unglaciated coastal areas in East Antarctica provide records of past ice sheet and glacier fluctuations and subsequent environmental conditions. In this paper we review lithological, geochemical, diatom and radiocarbon data from sediment records from inland and epishelf lakes in Bunger Hills, East Antarctica. While some hilltops were unglaciated during the Last Glacial Maximum, till deposits in lake basins indicate infilling by glacier ice prior to the Holocene. Proglacial sedimentation occurred in lakes during the early Holocene. Around 9.6 kabp, deposition of marine sapropel started under relatively warm climate conditions. Inland lakes were affected by high clastic input from meltwater runoff untilc.7.9 kabp, when deposition became highly organic and biogenic proxies indicate a period of cooler conditions. Epishelf lakes experienced a decrease in water exchange with the ocean and increased freshwater input around 7.7 ± 0.2 kabpand after 2.2 kabp. This probably resulted from grounding line advances of the bounding glaciers, which could be either controlled by relative sea level (RSL) lowering and/or climate-driven glacier dynamics. The absence of marine sediments in the postglacial record of Algae Lake indicates that Holocene RSL probably reached a maximum at or below 10 m above present sea level.

中文翻译：

---

邦格山海洋和湖泊水体的冰后演化

南极洲东部未结冰的沿海地区提供了过去冰盖和冰川波动以及随后的环境条件的记录。在本文中，我们回顾了来自东南极洲邦格山内陆和表架湖沉积物记录的岩性、地球化学、硅藻和放射性碳数据。虽然在末次盛冰期期间一些山顶没有冰川作用，但湖盆中的沉积物表明在全新世之前被冰川冰填充。全新世早期湖泊中发生了前冰期沉积。约 9.6 kabp，在相对温暖的气候条件下开始沉积海洋腐泥。内陆湖泊受到融水径流的高碎屑输入的影响，直到C。7.9卡bp，当沉积物变得高度有机和生物成因时，表明一段较冷的条件。Epishelf 湖泊与海洋的水交换减少，淡水输入增加约 7.7 ± 0.2 kabp2.2 ka 之后bp. 这可能是由于边界冰川的接地线前进造成的，这可以通过相对海平面（RSL）降低和/或气候驱动的冰川动力学来控制。藻湖冰后记录中没有海洋沉积物表明，全新世 RSL 可能在当前海平面以上 10 m 或以下达到最大值。