geotimes logo Hazard in the Heartland
May 1997 Table of Contents Volume 42 Number 5

Geotimes Cover DEPARTMENTS

  • Letters
  • Calendar
  • About People
  • Classified Ads
  • International Geoscience
  • Benchmarks
  • Geologic Phenomena
  • Geologic Column
  • Geomedia
  • AGI Announces

    Help Wanted
    Richard L. Nielsen


    Janice O. Childress Teaching moves to the tenure track ... Tracking trace metals in groundwater ... Paleocene mammal hair crops up in China ... Magnetic collapse at high pressures ... NOAA studies coastal water quality ... Mining companies jump on the "batwagon" ... "Baked Alaska" found in North Atlantic ... Networking in Southern California ... L.A.'s oldest residents ... Model may explain "super rotation"

    Federal Lands and the Geosciences
    David Applegate

    Hazard in the Heartland: The New Madrid Seismic Zone
    by Roy Van Arsdale Three great earthquakes rocked the Mississippi Valley during the winter of 1811-1812. Geological and geophysical studies of the New Madrid seismic zone are helping us learn more about the tectonic history of this region -- and what the future might hold.

    Unmanned Aerial Vehicles That Even Geoscience Departments Can Afford
    by Jonathan E. Nyquist Million-dollar price tags are no obstacle to military use of unmanned aircraft. But pilotless planes can also support geoscience studies. Do-it-yourself models and more sophisticated, factory-made vehicles hold promise for such "missions" as aerial photography and airborne geophysical surveys.

    Responsible Mining: Environmental Management at Grasberg
    by Mark Cloos Mining one of the world's largest copper deposits has proven both an engineering and environmental challenge. Minimizing the environmental impact of mining the Grasberg copper-gold orebody in Irian Jaya, Indonesia, depends on long-term monitoring, careful planning, and the use of engineering solutions.

    See the related press release describing the May issue.
logo © 1997 American Geological Institute. All rights reserved. Any copying, redistribution or retransmission of any of the contents of this service without the express written consent of the American Geological Institute is expressly prohibited.
    Cover Photo Credit: Rich Harrison, U.S. Geological Survey and Dave Hoffman, Missouri Department of Natural Resources

    Geotimes Ordering Information

    Geotimes Home Page | AGI Home Page | Education | GeoRef | Gov. Affairs | Members