The oldest ice on Earth in Beacon Valley, Antarctica: new evidence from surface exposure dating

• Main Authors: Jo«rg M. Scha«fer A, Heinrich Baur A, George H. Denton B, Susan Ivy-ochs C, Dave R. Marchant D, Christian Schlu«chter C, Rainer Wieler A
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: cosmogenic elements; noble gases; relict materials; ice; sublimation; Antarctica; Antarctic; Beacon Valley; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.549.5173; http://people.bu.edu/marchant/Dave_FullText_Papers/Schafer_EPSL_2000.pdf

Beacon Valley, Antarctica, contains unique remnants of glacier ice underneath a till layer covering the valley floor. To constrain the age and evolution of this important indicator of Antarctic paleoclimate, we analyzed two dolerite erratics from the till surface and one from within the ice for cosm...