Sedimentology on cores off Filchner Shelf Ice, Weddell Sea, Antarctica@en

The sediments of 14 box cores and 7 gravity cores, mainly taken directly in front of the Filchner(-Ronne) ice shelf northwest of Berkner Island (Weddell Sea), allowed to distinguish six sediment types. On the one hand,the retreat of the at first grounded and then floated ice from the last glacial maximum is documented. On the other hand,the sediments give an insight into extensive Holocene sediment deposition and remobilization northwest of Berkner Island. […]本次研究针对14个箱式岩芯（box cores）与7个重力岩芯（gravity cores）的沉积物展开分析，这些岩芯主要采集自伯克纳岛（Berkner Island）西北侧威德尔海（Weddell Sea）范围内的菲尔希纳（-龙尼）冰架（Filchner(-Ronne) ice shelf）直接前缘区域，据此可区分出六种沉积物类型。一方面，该数据集记录了末次冰盛期（last glacial maximum）期间，先处于接地状态、后转变为漂浮状态的冰体的退缩过程；另一方面，该沉积物序列揭示了伯克纳岛西北侧广泛的全新世（Holocene）沉积物沉积与再搬运作用（remobilization）。[…]