Tuesday, January 23, 2007

New Light on Ancient Worlds Through Geological Research

The January 2007 issues of Geotimes and Geology each feature icons of ancient civilizations on their covers. Odysseus, as memorialized in a museum located in the Villa of Tiberius, Sperlonga, Italy, draws the reader to the Geotimes report on "Finding Ithaca," the story of how geologists are helping to locate the possible real-world sites in Homer's epic poem Odyssey.

pictures Pueblo Bonito, "the largest ruin at Chaco Canyon, New Mexico... The abandonment of dwellings by ancestral Americans, such as those at Chaco, may have been caused by sudden shifts in climate. Asmerom et al.* suggest that solar variability, via modulation of the tropical Pacific, may be the cause of Holocene climate change." Both journal issues are on the new journal display rack today.

*Asmerom, Y. V.Polyak, S.Burns, J.Rassmussen. Solar forcing of Holocene climate: new insights from a speleothem record, southwestern United States. Geology 35 (1): 1-4.

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