Illinois, Indiana, and Ohio Magnetic and Gravity Maps and Data: A Website for Distribution of Data
Dataset Identification:
Resource Abstract:
This web site gives the results of a USGS project to acquire the best available, public-domain, aeromagnetic and gravity data
in the United States and merge these data into uniform, composite grids for each state. The results for the three states,
Illinois, Indiana, and Ohio are presented here in one site. Files of aeromagnetic and gravity grids and images are available
for these states for downloading. In Illinois, Indiana, and Ohio, 19 magnetic surveys have been knit together to form a single
digital grid and map. And, a complete Bouguer gravity anomaly grid and map was generated from 128,227 gravity station measurements
in and adjacent to Illinois, Indiana, and Ohio. In addition, a map shows the location of the aeromagnetic surveys, color-coded
to the survey flight-line spacing. This project was supported by the Mineral Resource Program of the USGS.
Citation
Title Illinois, Indiana, and Ohio Magnetic and Gravity Maps and Data: A Website for Distribution of Data