Abstract
Radiocarbon age measurements for glacial material from various North American localities, and tufa samples from lake terraces, samples indicating relative sea-level changes, ocean sediments, archeologic samples, and other samples from North and South America, Africa, Atlantic Ocean, Caribbean, Mediterranean, Europe and Pacific Islands measured between Feb. 1957 and July 1958 are recorded. Age calculations, new methods of chemical pre-treatment designed to detect and overcome possible sample contamination, and the effect of material type on the reliability of radiocarbon dating are discussed.
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