Summary: GEOLOGY, July 2007 619Geology, July 2007; v. 35; no. 7; p. 619622; doi: 10.1130/G23445A.1; 3 figures; 1 table; Data Repository item 2007154.
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Evidence for synchronous millennial-scale
climatic change between the Great Basin of the
western United States and the North Atlantic
exists mostly as records of Great Basin lake-
level fluctuations (Benson et al., 1998; Lin et al.,
1998; Oviatt, 1997) and alpine glacier advance
and retreat along the west coast (Benson et al.,
1996; Clark and Bartlein, 1995). However,
robust dating that would allow detailed corre-
lations has been problematic. Determining the
phase relationships of Great Basin and North
Atlantic records is complicated by uncertainties
and limits of the radiocarbon method (includ-
ing lake water reservoir effects), the difficulty
in identifying deflation-related hiatuses in lake
sediments, and the high frequency and short
duration of Dansgaard-Oeschger (D-O) events.