Mineral Resources
Online Spatial Data
Magnetic anomaly
Aeromagnetic surveys
Massachusetts
Airborne geophysical surveys
Survey name
Type
Altitude
Spacing
Flight line distance
Providence
M/R-D
121.9 m
10.00 km
531 km
Offshore East Coast
M-D
457.2 m (barometer)
3.20 km
37,658 km
Offshore E. Coast Tie Lines
M-D
300 m (barometer)
-9999.00 km
185,000 km