NONEXCLUSIVE HIGH-DEFINITION AEROMAGNETIC DATA

SOUTH-CENTRAL NEW YORK

Flown by Airmag Surveys, Inc.

Processing by EDCON-PRJ, Inc.

In 1999 PRJ flew a high-definition aeromagnetic survey in south-central New York that covers the current area of exploration for Trenton-Black River gas reservoirs.

SPECIFICATIONS

Survey Size: Approximately 13,675 line miles

Flight Line Spacing:1/3 mile

Line Direction: North-south

Tie Line Direction: East-west

Tie Line Spacing: 1 mile

Elevation: Approximately 500 feet above ground level

Magnetometer: High sensitivity optically-pumped magnetometer

Sample rate: 0.25 second sampling

DELIVERABLES

• Total magnetic intensity contour map (IGRF-removed)
• Reduced to pole total magnetic intensity map
• Flight line location map on topographic base
• Enhanced Linear Feature Analysis emphasizing contact-related magnetic gradient changes
• Spectral data analysis, including depth-slicing and spectral data enhancement
• Full set of derivative maps, including both horizontal and vertical gradients
• Summary overlay with salient magnetic features
• Archive CD of both digital profile data and digital grids
• Maps at scale of 1:100,000 and digital formats as per specifications supplied by client