Glacial Deposits.indd - Department of Geography - Geology - Illinois ...
Glacial Deposits.indd - Department of Geography - Geology - Illinois ...
Glacial Deposits.indd - Department of Geography - Geology - Illinois ...
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GLACIAL DEPOSITS<br />
Volume 38<br />
2009-2010<br />
<strong>Department</strong> <strong>of</strong> <strong>Geography</strong>-<strong>Geology</strong><br />
<strong>Illinois</strong> State University<br />
Campus Box 4400<br />
Normal IL 61790-4400<br />
Homepage: www.geo.ilstu.edu<br />
Editor<br />
Michael D. Sublett<br />
Graphics<br />
Jill Freund Thomas<br />
Associate Editor<br />
David H. Malone<br />
Cover: EarthScope features networks <strong>of</strong> sophisticated and carefully positioned seismic sensing devices<br />
that report automatically and frequently to data collection points via satellite telemetry. <strong>Illinois</strong> is in the<br />
path <strong>of</strong> an invasion by the brown dots, which represent positions, on a 75 kilometer grid, <strong>of</strong> the USArray.<br />
Some <strong>of</strong> the rolling array’s traveling seismometers will reside in <strong>Illinois</strong> for two years, beginning in 2011.<br />
The dot in <strong>Illinois</strong> underneath the name <strong>of</strong> the state is the location <strong>of</strong> HDIL, the broad band seismometer<br />
near Hopedale that Skip Nelson championed and now monitors. It is part <strong>of</strong> a 350 kilometer grid and will<br />
remain after the traveling array finally reaches the Atlantic and moves north to Alaska. For more<br />
information on all aspects <strong>of</strong> EarthScope, which is a program <strong>of</strong> the National Science Foundation, see<br />
www.earthscope.org. We thank EarthScope <strong>of</strong>ficials for allowing us to use the map and Press Technician<br />
David Blair at Printing Services for assistance with the cover.