Quaternary Icefall (77°18′S 166°30′E) is a western lobe of the Mount Bird icecap, descending steeply into Wohlschlag Bay 1 mile (1.6 km) south of Cinder Hill on Ross Island. The site was mapped and so named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1958–59, because of the Quaternary glacial period marine shells carried by the glacier and deposited in terminal moraines.
References
Quaternary Icefall Wikipedia(Text) CC BY-SA