Denison University Assistant Professor Johanna Kieniewicz will present her research on Dakhleh Glass, a Ca-Al-silicate glass believed to have been produced by a meteorite impact that is found in the heart of the Western Desert of Egypt, at the 119th annual meeting of the Geological Society of America. The meeting will be held Oct. 27-31, 2007, at the Colorado Convention Center in Philadelphia. Approximately 6,300 geoscientists are expected to attend.

Kieniewicz's talk is called "Paleoenvironmental reconstruction of the aftermath of a Mid-Pleistocene meteorite impact event, Dakhleh Oasis, Egypt."

The Dakhleh Glass documents an impact event between ~100,000 and 160,000 years ago during a period of considerably wetter climate conditions in comparison with the present. Kieniewicz will discuss the environmental effects of this impact event, as recorded in the lake sediments, to Dakhleh Oasis and its likely implications for the Middle Stone Age occupants of the area.

For more information, contact Kieniewicz at kieniewiczj@denison.edu

- DU -

About Denison:

Denison University, founded in 1831, is an independent, residential liberal arts institution located in Granville, Ohio. A highly selective college enrolling 2,100 full-time undergraduate students from all 50 states and dozens of foreign countries, Denison is a place where innovative faculty and motivated students collaborate in rigorous scholarship, civic engagement and the cultivation of independent thinking.

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