Scientists Collect Data to Aid Afghanistan Reconstruction

Scientists collected aerial photographs and geophysical data, which includes aeromagnetic and gravity data. Researchers combined the geophysical data with data from previous studies to create a magnetic anomaly map and a gravity anomaly map of Afghanistan.

Airborne magnetic surveys provide a way to see through surface layers, such as sand, vegetation and water. They are a powerful tool for documenting the distribution and relative abundance of magnetic minerals in rocks - information that can help with mineral and petroleum exploration, tectonic interpretations, and seismic hazard assessments. Airborne gravity surveys help identify igneous rocks (rocks produced through intense heat) of interest for mineral resource studies, sedimentary basins for petroleum and water resource studies, and linear features for seismic hazard studies. The aerial photographs have many geologic and civil uses. They can help with the inventory and planning of civil infrastructure and agricultural resources and the development of detailed maps.

In this effort, USGS scientists worked cooperatively with the Naval Research Laboratory, Afghanistan Geological Survey, Afghanistan Head Office for Geodesy and Cartography, personnel from the NRL Scientific Development Squadron ONE (VXS-1), Afghanistan Ministry of Mines and Industry, and the Canadian Forces Mapping and Charting Establishment. The airborne geophysical survey was flown during the summer of 2006.

The Islamic Republic of Afghanistan commissioned the USGS to conduct this survey to assist in the reconstruction efforts of Afghanistan and to complement the resource assessments coordinated by the U.S. Agency for International Development. The USGS has also been working with the government of Afghanistan to provide a preliminary non-fuel mineral resource assessment of the nation issued on November 13, 2007, an earthquake hazards assessment released on May 30, 2007, and an oil and gas resources assessment of the nation issued in March 2006.

http://afghanistan.cr.usgs.gov/airborne.php.

http://afghanistan.cr.usgs.gov/.

http://www.usgs.gov/.

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