USGS to Conduct Geologic Survey Flights Over New England
The U.S. Geological Survey (USGS) will initiate low-level aerial surveys across parts of New England, including Connecticut, to map geological features and address the use of pyrrhotite in infrastructure. Pyrrhotite, a mineral found in the region’s bedrock, poses significant risks when used in cement, leading to structural weaknesses and crumbling concrete, particularly in local basements.
Set to begin this month, the flights will focus on the Connecticut River Valley, as part of a broader national effort to modernize geological mapping that enhances understanding of vital resources and natural hazards. Jamey Jones, USGS science coordinator, highlighted that this initiative aims not only to address local concerns concerning pyrrhotite but also to inform national priorities on sourcing critical minerals.
Spanning from spring to fall 2025, the surveys will utilize an aircraft equipped with sensors to detect variations in the Earth’s magnetic field and radiation from different rock types. Conducted at altitudes between 300 and 1,000 feet, the operations will take place during daylight hours and will exclude photography or video capture, ensuring no risk to wildlife or plant life. The areas covered include several counties such as Fairfield, Hartford, and New Haven.
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