Mistake Crag [SEP] continent
Mistake Crag
Mistake Crag () is a slightly bowed crag in Antarctica, extending north from Cinder Spur and rising to about above the presently unnamed glacier on its west side. The name is derived from the mistaken belief that Cinder Spur was mainly composed of cinders from the supposed adjacent volcanic vent, now proved by snow retreat to be a cirque. The crag is really formed of sedimentary rock, whereas Cinder Spur is a dyke.
Praetiglian Stage on the continent, and tentatively correlated with the transition of Marine Isotope Stages 97 to 96. 
Stratigraphy.
The borehole log has been given by West (1962). It was considered that the sedimentary sequence between – 7.6 and –49.7 m depth (grey sands, silts and clays) clearly belonged to the Crag Group. The sequence above this (brown sands with yellow clay seams and ferruginous material) was considered to resemble the uppermost division of Norwich Crag as described by Woodward (1881), attributed