Antarctica

Radiocarbon dating has been used to date the start of glacial retreat on Alexander Island 18,000 years ago. The outermost locations like Marguerite Bay were fully deglaciated 12,000 years ago and the further inland locations continued deglaciating for an additional 3,000 years. The Larsen ice shelf was formed in the early Holocene at the latest estimation of 10,700 years ago. Certain segments of the