Electrical conductivity method (ECM) stratigraphic dating of the Byrd Station ice core, Antarctica 

Annals of Glaciology, Vol. 20, p. 115-120, 1994 

C.U. Hammer and H.B. Clausen
Geofysisk Afdeling, Niels Bohr Instituttet for Astronomi, Fysik og Geofysik, Københavns Universitet
C.C. Langway, Jr.
Ice Core Laboratory, Department of Geology, State University of New York at Buffalo, Amherst, NY 14226, USA.

A continuous ECM profile (strong acid concentration) has been measured along the 2191 m of ice core recovered at Byrd Station, Antarctica, in 1968. The ECM profile reveals continuous and systematic seasonal changes which are used for dating the ice core back to 50 000 BP. Hammer and others: ECM stratigraphic dating of Byrd Station ice core, Antarctica.