The University of Arizona
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Radiocarbon content of tropospheric CO2 at China Lake, California.

Rainer Berger, T B Jackson, Robert Michael, H E Suess


The measurements reported here are a continuation of tropospheric radiocarbon measurements in carbon dioxide carried out since 1961 at our China Lake, California collection facility. The data show a continued decrease in radiocarbon activity from ca 330‰ in 1977 to 215‰ in 1983 in agreement with similar analyses in Europe for the same time interval.


China Lake;troposphere;California;United States;geochronology;C 14;carbon;dates;isotopes;radioactive isotopes;carbon dioxide;absolute age

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