U. S. Geological Survey Radiocarbon Dates VII

Abstract

This date list contains the results of measurements made during 1961, 1962 and 1963. The method of counting, utilizing acetylene gas, remains essentially unchanged, except for the addition of some solid state electronics. The method of computation, using the Libby half-life of 5568 ± 30 yr, is continued. The error listed is always larger than the one-sigma statistical counting error commonly used, and takes into account known uncertainty laboratory factors, and does not include external (field or atmospheric) variations.Unless otherwise stated, collectors of all samples are members of the U. S. Geological Survey.

Glacial Deposition Along an Ice-Contact Slope: An Example from the Southern Lake District, Chile

“…Figure 19 reßects the composite stratigraphy with descriptions in Table 4. Organic beds at the base of the section lie beyond the age of radiocarbon dating (Ives et al 1964;Porter 1981), whereas lacustrine silts between the upper two diamictons yield ages about 14,880 14 C yr BP and older (Lowell et al 1995;Denton et al 1999). The stratigraphy and ages require at least two glacial advances over the site.…”

Stratigraphy, age, and flora of the Southport forest bed, Southeastern Wisconsin

“…was from a log lying in lake and pond silts and sands (R.F. Black, written communication to Phil Sander, July 5, 1961;Ives et al, 1964); the other (dated at 6350 14 C yr B.P., ca. 7295 cal yr B.P.)…”

Bibliography of published radiocarbon dates for Alaska

“…1958Everett, 1979Fernald, 1964Hamilton, 1982Hamilton, 1981Hamilton, 1980aHamilton, 1980bHamilton, 1979aHamilton, 1979bHamilton, 1969 Hamilton, n.d. Hamilton and Brubaker, 1983Hamilton and Hopkins, 1982 KamitIon and Porter, 1975Hamilton, et. al., 1982Harington, 1981Hopkins and Robinson, 1981Hopkins and Robinson, 1979aHopkins and Robinson, 1979bIves, et. al., 1964 Lawn, 1975 Levin, et.…”

“…al., 1968Chapman, et. al., 1982Crane, 1956Farrand, 1961Fernald, 1965aFernald, 1965bFernald, 1965cFernald, 1962 Foster, 1981 Guthrie, 1968Harington, 1980bHarington, 1969Ives, et. al., 1964 Kjoller and Odcm, 1971Kowalski, 1965Kowalski and Schrodt, 1966Krinsley, 1965Krueger and Weeks, 1966Kulp, et.…”

“…al., 1965Ives, et. al., 1967Ives, et. al., 1964 Kalstpcm, 1965 Karlstpom, 1964Krueger and Weeks, 1966Kulp, et.…”