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Airborne magnetic and radiometric survey, Munsungun region in northern Maine, 2021 This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over parts of northern Maine. The airborne data collection was funded by the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) with goals of better understanding volcanogenic massive sulfide mineral deposits, sediment hosted manganese deposits, and their surrounding geologic framework. Data for this survey were collected and processed by Sander Geophysics under contract with the USGS. The airborne survey took place June-July 2021. Using a fixed wing aircraft with a magnetometer mounted in a tail stinger and a fully calibrated gamma ray spectrometer, data were collected along... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Geophysics"], Allagash Lake, Aroostook County, Aroostook River, Bever Brook, All tags... Big Machias Lake, Carr Pond, Chamberlain Lake, Chesuncook Lake, Clear Lake, Eagle Lake, Earth Mapping Resources Initiative, EarthMRI, Fish River, Fish River Lake, Geology, Geophysics, and Geochemistry Science CenterGGGSC, Gero Island, Glazier Brook, Harrow Lake, Harvey Pond, Haymock Lake, Little Madawaska River, Longley Pondk, Loon Lake, MRP, Machias River, Maine, Mineral Resources Program, Mud Lake, Munsungun Region, Northern Maine, Penobscot County, Piscataquis County, Pleasant Lake, Portage Lake, Pratt Lake, Priestly Lake, Rocky Brook, Round Pond, Rowe Lake, Saint Froid Lake, Shallow Lake, Somerset County, Spider Lake, Squa Pan Lake, Square Lake, Third Lake, Twentyfive Mile Brook, Twin Lake, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), United States, United States of America, Webster Brook, Webster Lake, ["Economic Geology", aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), potassium, thorium, uranium, vertical magnetic gradient, Fewer tags