Methyl chloride in a deep ice core from Siple Dome, Antarctica

• Published in: Geophysical Research Letters
• Main Authors: Saltzman, Eric S, Aydin, Murat, Williams, Margaret B, Verhulst, Kristal R, Gun, Baris
• Format: Article in Journal/Newspaper
• Language: English
• Published: eScholarship, University of California 2009
• Subjects: Physical Sciences and Mathematics; air bubbles; antarctica; atmospheric levels; glacial ices; Holocene; ice cores; late Holocene; siple domes; south poles; chlorine; chlorine compounds; domes; glacial geology; ice; ozone; core samples; air bubble; atmospheric chemistry; ice core; methyl chloride; Southern Hemisphere; Siple Dome; West Antarctica; Antarctic; Dome Fuji; Siple; South Pole; Antarc*; Antarctica; South pole
• Online Access: http://www.escholarship.org/uc/item/0hg008gd

Methyl chloride (CH3Cl) is a naturally occurring ozone-depleting substance and a significant component of the atmospheric chlorine burden. In this study CH3Cl was analyzed in air bubbles from the West Antarctic Siple Dome deep ice core with gas ages ranging from about 65 kyr BP to the Late Holocene....