

Climate periods in trees and in organic carbon in sea sediment core.
Keywords
growth rings;D H;ratios;Southern California;O 18 O 16;hydrogen;California;oxygen;interpretation;tree rings;paleoclimatology;organic compounds;organic materials;United States;sediments;Cenozoic;Quaternary;wood;geochronology;C 14;carbon;dates;isotopes;radioactive isotopes;stable isotopes;absolute age;geochemistry