U.S. NON-EXCLUSIVE GRAVITY & MAGNETIC INFORMATION

Arizona and Southwest New Mexico Gravity & Magnetic Interpretation

Data

Aeromagnetic Data

• Survey Size: 33,768 line miles
• Line Spacing: .66 mile north-south; 6 miles east-west
• Data Provided:
  Total Intensity Map (scale 1/62,500)
  Residual Intensity Contour Maps with IGRF removed
• Aeromagnetic Data: Prices available from Lisle Exploration or EDCON
• Data: (NOTE: Magnetic data available only over Tucson, Silver City, Nogales, and Douglas quads)

Terrain-Corrected DOD Gravity Data

• Survey Size: Approximately 44,000 square miles; 16,790 stations
• Data Provided: Terrain-Corrected Bouguer Gravity Map at a scale of 1/62,500
• Cost of Data: Prices available from EDCON

Terrain-Corrected Lisle Gravity Data

• Survey Size: Approximately 44,000 square miles; 25,542 stations
• Data Provided:
  Magnetic tape and computer printout listing of principal survey facts
  Terrain-Corrected from Bouguer Gravity Map at a scale of 1/62,500
• Cost of Data: Prices available from Lisle Exploration or EDCON

NOTE: Integrated gravity data sets: Both data sets discussed above have been integrated and merged and are available as part of the interpretation.

Interpretation

Integrated Gravity / Magnetic Interpretation

• Data Provided:
  Interpretation maps showing: faults, structural axes, outline of magnetic provinces and bodies, depth to various magnetic bodies, depth to high density basement
  Magnetics Reduced-to-Pole Map
  Second Vertical Derivative of Magnetics Reduced-to-Pole Map
  Second Vertical Derivative of Bouguer Gravity Map
  Residual Gravity Map
  Geological Base Map
  Complete report discussing methods and results of interpretation
  (NOTE: Integrated interpretation available only for areas of Tucson, Silver City, Nogales, and Douglas quads)

Integrated Gravity / Geological Structural Interpretation

• Data Provided:
  Interpretation maps showing: faults, structural axes, petroleum prospects
  Second Vertical Derivative of Bouguer Gravity Map
  Complete report discussing methods and results of interpretation
• Interpretation Cost: Prices available from EDCON
• (NOTE: The data and interpretation are available on individual 1/62,500 quadrangle sheets)

Arizona/New Mexico: 16K gif file

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Beartooth Mountains, Wyoming and Montana Gravity Survey

Data

• Survey Size: 1,155 stations
• Data Provided:
  Maps of station locations and terrain-corrected Bouguer gravity
  Digital data tape with all principle facts
  Report
• Cost: $58,785

Beartooth Mountains Map: 14K gif file

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Big Horn Basin, Wyoming and Montana Integrated Digital Gravity Data

Basic Data

• Survey Size: 8,100 square miles; 22,153 road stations
• Data Spacing: Variable
• Data Provided: Integrated Bouguer Gravity Map (1" = 4,000')
• Total Cost: Quote available from Lisle Exploration

Digitized Data

Magnetic Tape: The Bouguer gravity value and X-Y location of each gravity station is written on magnetic tape. A complete format description is delivered with the tape. Prior to digitizing, the various surveys in the data set were adjusted for misties at the survey boundaries.

Map: A machine-contoured Bouguer Gravity Map set is delivered with the magnetic tape. The map set is on fifteen 30-minute quadrangle sheets at a scale of 1" = 4,000'; the contour interval is 1 mGal.

• Cost: $4,500

Big Horn Basin Map: 25K gif file

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California Coastal Basin Series Aeromagnetic Data & Interpretation

Data

Salinas Valley Survey

• Survey Size: 3,710 line miles
• Survey Date: Spring 1984
• Data Spacing: ½ mile NE; 4 miles NW
• Data Provided: Flight Line Maps, Total Magnetic Intensity Contour Maps (scale 1:48,000), profiles and data tapes
• Cost: $18,500

Cholame Arch Survey

• Survey Size: 1,200 line miles
• Survey Date: Spring 1985
• Line Spacing: ½ mile NE; 4 miles NW
• Data Provided: Total Magnetic Intensity Contour Maps (scale 1:48,000), profiles and data tapes
• Cost: $10,750

Carrizo Plain, Caliente Range, Cuyama Valley Survey

• Survey Size: 2,835 line miles
• Survey Date: Spring 1984
• Line Spacing: ½ mile NE; 4 miles NW
• Data Provided: Maps (scale 1:48,000), profiles and data tapes
• Cost: $15,000

Santa Maria Survey

• Survey Size: 1,237 line miles
• Survey Date: Summer 1985
• Data Spacing: 1 mile NS; 6 miles EW
• Data Provided: Flight Line Maps, Total Magnetic Intensity Contour Maps (scale 1:48,000), profiles and data tapes
• Cost: $15,500

Interpretation

• Data Provided:
  Maps (scale 1:48,000): Interpretation: Faults, Structural Axes, Outline of Magnetic Bodies, Susceptibilities, Depth to Magnetic Basement, Reduced-to-Pole Magnetic Anomaly, Second Vertical Derivative of Reduced-to-Pole, Magnetic Anomaly
  Magnetic Tape: digital grids of mapped fields

Report

• Cost:
  Salinas Survey - $15,250
  Cholame Survey - $6,500
  Carrizo Survey - $11,750
  Santa Maria Survey - Included with data purchase

California Coastal Basin Map: 99K jpeg file

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Columbia County, Oregon; Cowlitz County, Washington Integrated Gravity & Magnetic Survey

Data

• Survey Size: 257 line miles; 1,028 road stations (surveyed with inertial surveying system)
• Line Spacing: ¼ mile road stations
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, and Bouguer gravity
• Total Cost: $20,560
• Cost/Station: $20

Interpretation

• Available upon request

Columbia/Cowlitz County Map: 13K gif file

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Eastern Great Basin, Nevada Land Gravity Survey

Data

• Survey Size: 27,500 square miles (approximate)
• Data Spacing: Variable
• Data Provided:
  Integrated Bouguer Map of published gravity data (scale - 1/250,000)
  The Bouguer Maps are on a USGS topographic map base which shows roads and townships, etc., in a manner which does not obstruct the gravity contours and station locations.
• Total Cost: No charge for data (purchase of Interpretation is required).

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Regional Base of Tertiary Structure Map showing: major bounding faults of the Tertiary grabens, Paleozoic or Pre-Cambrian structural highs within grabens, fault configuration with grabens, structure contours on Base of Tertiary, areas with possible surface density/seismic velocity problems (Maps are mylar films designed to be used as an overlay)
  Complete report discussing methods and results of interpretation
• Total Cost: $12,000

Eastern Great Basin Map: 91K jpeg file

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Eastern Great Basin, Nevada/Utah Magnetic Survey

Data

LISLE Aeromagnetic Data

• Survey Size: Approximately 41,568 line miles
• Line Spacing: 1.5 mile (east-west); 1.5 mile (north-south)
• Data Provided:
  Flight line maps
  Residual Intensity Contour Maps with IGRF removed (scale 1" = 8,000')
• Cost of Data: Prices available from Lisle Exploration or EDCON

Integrated Magnetic / Geologic Structural Interpretation

• Data Provided:
  Interpretation Maps showing: faults, structural axes, outline of magnetic bodies, depth to magnetic basement, depth to high density basement
  Magnetics Reduced-to-Pole Map
  Second Vertical Derivative of Magnetics Map
  Geological structure maps
  Five geological cross-sections
• Interpretation Cost: Prices available from EDCON
• Conditions of Sale: Prerequisite - purchase of magnetic data

Eastern Great Basin Map: 25K gif file

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Elko County, Nevada Land Gravity Survey

Data

• Survey Size: 277 line miles; 1,109 road stations
• Data Spacing: ¼ mile road stations
• Data Provided:
  Listing of principal survey facts
  Report describing data acquisition and reduction
  Bouguer gravity profiles terrain corrected to a radius of 12.5 km
• Total Cost:
  Areas A, B, C, and D (277 miles of profiles; 1,109 stations @ $12.50/station) - $13,862.50
  Area A (119 miles of profiles; 475 stations) - $5,937.50
  Area B (56 miles of profiles; 225 stations) - $2,812
  Area C (49 miles of profiles; 197 stations) - $2,462.50
  Area D (53 miles of profiles; 212 stations) - $2,650

Interpretation

• Data Provided:
  Regional/residual separation
  Modeled geologic section showing depth to high density rock (basement) using an interactive gravity inversion technique. Also includes faulting and other structural interpretations.
  Available published geologic and geophysical data will be incorporated into the gravity modeling.
  Complete report discussing methods and results of interpretation
• Interpretation Cost:
  Areas A, B, C, and D - $4,000
  Area A - $1,500
  Area B - $1,000
  Area C - $1,000
  Area D - $1,000

Elko Map: 21K gif file

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Williston Basin, North Dakota Reprocessed Gravity Data

DOD Gravity Data

• Survey Size: State of North Dakota
• Data Provided: Approximately 8,900 stations; Bouguer Gravity Map and principal facts - terrain-corrected and reprocessed.
• Cost of Data: $9000

Eastern Williston Basin, ND Map: 30K gif file

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Hoback, Wyoming Conventional Land Gravity / Seismic Survey

Data

• Survey Size: 1,720 square miles; 903 road stations
• Data Spacing: Reconnaissance - ¼ mile stations along some roads and trails
• Terrain Corrections: Through Hammer Zone H
• Data Provided: Bouguer Gravity Map
• Total Cost: $10,836
• Cost/Station: $12
• Conditions: Seismic data must be purchased. Seismic data available through EDCON.

Integrated Gravity / Seismic / Geologic Structural Interpretation

• Data Provided:
  Structural Interpretation Map. Profiles along seismic lines showing: observed Bouguer gravity, residual Bouguer gravity, shallow low-density horizon, depth to basement, intra-sedimentary anomalies
  Report discussing methods and results of interpretation
• Total Cost: Included in basic data purchase price

Hoback Map: 12K gif file

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Illinois Microgravity Survey

Data

• Survey Size: 1,743 Gravity Stations
• Data Provided: Complete Bouguer Gravity, Regional Bouguer Gravity, Residual Bouguer Gravity, SVD of Complete Bouguer Gravity, SVD of Residual Bouguer Gravity

Coverage

• Data Listed Includes:Lat, Long, X, Y, Z, Terrain Correction, Observed Gravity, Free-Air Gravity, Simple Bouguer, Gravity, Complete Bouguer Gravity
• Report

Price:

• Total Cost: $34,860
• Cost/Station: $20

Illinois Map: 17K gif file

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Mayfield, Utah Helicopter Gravity Survey

Data

• Survey Size: 230 square miles; 225 stations
• Data Spacing: Helicopter - 1 mile grid
• Terrain Corrections: Through Hayford-Bowie Zone J (12,400 meters)
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $7,875
• Cost/Station: $35

Interpretation

• Available upon request.

Mayfield Map: 8K gif file

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Northeast Nevada Aeromagnetic Survey

Data

• Survey Size: 24,258 line miles
• Line Spacing: 1.5 mile by 1.5 mile
• Data Provided:
  Maps (scale 1:96,000): Total Magnetic Intensity Contour Maps with IGRF removed, Flight Line Maps
  Profiles and archive data tapes
• Cost: $4.80 per line mile; Minimum purchase of one 30-minute quadrangle

Interpretation

• Data Provided:
  Maps (scale 1:96,000): Interpretation: faults, Structural Axes, Outline of Magnetic Bodies, Susceptibilities, Depth to Magnetic Basement, Reduced-to-Pole Magnetic Anomaly, Second Vertical Derivative of Reduced-to-Pole Magnetic Anomaly
  Interpreted profiles of significant magnetic anomalies
  Magnetic Tape: digital grids of mapped fields
  Report
• Interpretation: $1.00 per line mile
• Cost: Prerequisite: purchase of data; Minimum of one 30-minute quadrangle

Northeast Nevada Map: 20K gif file

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Northwest Montana Helicopter Gravity Survey

Data

• Survey Size: 2,844 square miles; 912 helicopter stations and 219 vehicle stations acquired using inertial surveying
• Data Spacing: 6,500' station spacing
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $61,290
• Cost/Station: Helicopter - $60; Vehicle - $30

Interpretation

• Quote available upon request

Northwest Montana Map: 22K gif file

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Owyhee Basin, Nevada/Idaho/Oregon Helicopter Gravity Survey

Data

• Survey Size: 4,500 square miles; 3,000 stations acquired using inertial surveying (1,300 road stations, 1,700 helicopter-acquired stations)
• Data Spacing: Road data, ½ mile intervals along roads; helicopter data, 7,000 foot grid
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 8,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $141,000
• Cost/Station: Road data - $30/station; Helicopter-acquired data - $60/station

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Interpretation Map showing: faults, structural axes, petroleum prospects, edges of thrust faults, low density isopach contours
  Second Vertical Derivative Map
  Cross-sections showing gravity and geology
  Complete report discussing methods and results of interpretation
• Interpretation Cost: Price on request

Owyhee Basin Map: 28K gif file

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Pioche, Nevada Helicopter Gravity Survey

Data

• Survey Size: 1,500 square miles; 1,279 stations
• Data Spacing: 6,000 foot grid
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $76,740
• Cost/Station: $60

Interpretation

• Available upon request.

Pioche Map: 21K gif file

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Sandwash Basin, Colorado AeroMagnetic Survey

Data

• Data Provided:
  Regional Total Magnetic Intensity R-T-P, S.V.D. of Regional TMI R-T-P, S.V.D. of Regional TMI R-T-P, Total Magnetic Intensity R-T-P, S.V.D. of Total Magnetic Intensity R-T-P, Combined Magnetic Interpretation, Precambrian Basement & Overlay, Two Dimensional Model
• Total Cost: Call for quote.

  Sandwash Basin Map: 13K gif file

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Hingeline, Skull Valley, Utah Land Gravity Survey

Data

• Survey Size: 400 square miles; 1,033 stations
• Data Spacing: Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $5,165
• Cost/Station: $5

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  High Density Basement Shape Map (1" = 4,000') showing: faults, valley fill isopachs
  Structural Profiles across valley
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $5,000

Skull Valley Map: 9K gif file

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Snake River, Downwarp, Idaho Gravity / Magnetic/ P-Wave Delay Refraction Survey

Data

• Survey Size: 280 gravity and magnetic stations: 50 P-wave delay stations
• Data Spacing:
  Gravity and magnetic stations, Road - ¼ mile
  P-wave delay stations - 4 km grid
• Terrain Corrections: Through Hayford-Bowie Zone J (Gravity)
• Data Provided:
  Profile showing gravity, magnetic, and P-wave delay data (University of Utah and Purdue University are data sources for P-wave delay data along gravity and magnetic line)
  P-wave delay refraction data grid

Integrated Gravity / Magnetic / P-Wave Delay / Geologic Structural Interpretation

• Data Provided:
  Analysis of basic rock properties
  Analysis of the profile along the line of seismometers which incorporated gravity, magnetic, P-wave refractions data, and magnetotelluric data
  Analysis of whole survey area including incorporation of the regional government gravity and magnetic data
  Mutual 3-D inversion using P-wave delay and gravity to determine the configuration of the Cenozoic/Mesozoic contact, subsurface structure and trends and crustal influences on the indicated structures
  Implications of the crustal structure as it relates to the petroleum and geothermal prospectiveness of the area are discussed.
• Total Cost: Data plus interpretation - $31,000
  A detailed proprietary geological report, "Geology and Geophysics of the Eastern Snake River Plain" by Dr. James D. Lowell is included. This 45-page report contains numerous illustrations and a geologic compilation map at a scale of 1:250,000.

Snake River Map: 12K gif file

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South Texas Aeromagnetic Survey

Data

• Survey Size: 19,000 miles
• Line Spacing: 0.5 miles east; 5 miles north
• Survey Date: Spring 1985
• Data Provided:
  Maps (scale 1:48,000): Flight Line, Total Magnetic Intensity
  Archive data tape, gridded file tape
• Total Cost: $125,000

South Texas Map: 58K jpeg file

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Spring Mountain, Nevada Gravity & Aeromagnetic Surveys

Data

Gravity Survey

• Survey Size: 1,610 square miles; 1,245 stations
• Data Spacing: 6,000 foot grid
• Terrain Corrections: Through Hayford-Bowie Zone J (12,400 meters)
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Cost of Gravity Data: $56,025 ($45/station)

Aeromagnetic Survey

• Survey Size: 2,700 line miles
• Data Spacing: 1 x 5 mile survey grid
• Data Provided:
  Contour Map of Total Magnetic Intensity (1" = 4,000')
  Maps showing flight positions (1" = 4,000')
  Data acquisition
• Cost of Aeromag. Data: $13,500 ($5/line mile)

Integrated Gravity / Aeromagnetic / Geologic Interpretation

• Data Provided:
  Interpretation Map showing: faults, structural axes, petroleum prospects, outline of magnetic bodies, depth to basement, intrasedimentary structures
  Computation of second vertical derivative of Bouguer gravity
  Residual Gravity Map
  Construction of geologic models for selected areas
  Magnetics Reduced-to-Pole Map
  Second Vertical Derivative of Magnetics Map
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $15,000
• Conditions of Sale: Purchase of both aeromagnetic and gravity data is required

Spring Mountain Map: 14K gif file

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Survey A, Thrustbelt, Idaho/Wyoming Helicopter Gravity Survey

Data

• Survey Size: 1,302 square miles; 2,141 stations
• Data Spacing: Helicopter - 1 mile grid; Road - ¼ mile (surveyed with inertial surveying systems)
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" - 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $74,935
• Cost/Station: $35

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Bouguer Gravity with Interpretation Map (1" = 4,000') showing: Faults, structural axes, tertiary thickness
  Total Magnetic Intensity Map (1" = 4,000')
  Second Vertical Derivative of Bouguer Gravity (1" = 4,000')
  Geologic Cross-Sections
  Regional Profiles Showing Bouguer Gravity and Total Magnetic Intensity
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $12,000

Survey A Map: 18K gif file

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Thrustbelt Survey AA, Utah Helicopter Gravity Survey

Data

• Survey Size: 2,500 square miles; 1,650 stations
• Data Spacing: 6,500 foot grid
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $74,250
• Cost/Station: $45

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Interpretation Map showing: faults, structural axes, petroleum prospects, edges of thrust faults, low density isopach contours
  Second Vertical Derivative Map
  Cross-sections showing gravity and geology
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $10,000

Survey AA Map: 20K gif file

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Thrustbelt Survey B, Idaho/Wyoming Helicopter Gravity Survey

Data

• Survey Size: 1,030 square miles; 1,442 stations
• Data Spacing: Helicopter - 1 mile grid; Road - ¼ mile (surveyed with inertial surveying system)
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $50,470
• Cost/Station: $35

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Bouguer Gravity with Interpretation Map (1" = 4,000') showing: faults, structural axes, tertiary thickness
  Total Magnetic Intensity Map (1" - 4,000')
  Second Vertical Derivative of Bouguer Gravity (1" = 4,000')
  Geologic Cross-Sections
  Regional Profiles showing Bouguer Gravity and Total Magnetic Intensity
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $12,000

Survey B Map: 15K gif file

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Thrustbelt Survey C, Utah Helicopter Gravity Survey

Data

• Survey Size: 1,650 square miles; 1,479 helicopter stations; 697 optional road stations
• Data Spacing: Helicopter - 1 mile grid; Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: Helicopter - $66,550; Road (optional) - $3,485
• Cost/Station: Helicopter - $45; Road - $5
• Conditions of Sale: Optional road stations available through EDCON. (Availability subject to change.)

Interpretation

• Available upon request

Survey C Map: 18K gif file(small resolution)
Survey C Map: 157K gif file(medium resolution)
Survey C Map: 290K pdf file(high resolution)

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Thrustbelt Survey CC, Utah Land Gravity Survey

Data

• Survey Size: 2,070 square miles; 2,972 stations
• Data Spacing: ½ mile road stations
• Data Provided: Bouguer Gravity Map
• Total Cost: $14,860
• Cost/Station: $5

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Results of Interpretation Map (1" = 8,000') showing: generalized surface volcanics, surface Paleozoics, surface basalts, possible salt thickness, outline of magnetic bodies, zones of faulting, gravity and magnetic trends
  Residual Gravity Map (1" = 8,000')
  Regional Gravity Map (1" = 8,000')
  Second Vertical Derivative of Gravity Map (1" = 8,000')
  Interpreted Structure and Low Density Isopach (1" = 8,000')
  Aeromagnetic Map of Delta & Richfield Quad (USGS)
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $10,000

Survey CC Map: 19K gif file

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Thrustbelt Survey D, Idaho/Utah/Wyoming Helicopter Gravity Survey

Data

• Survey Size: 2,390 square miles; 1,304 helicopter stations; 4,557 optional road stations
• Data Spacing: Helicopter - 1 mile grid; Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: Helicopter - $58,680; Road (optional) - $22,785
• Cost/Station: Helicopter - $45; Road - $5
• Conditions of Sale: Optional road stations available through EDCON. (Availability subject to change.)

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Composite Interpretation with Bouguer Gravity Map (1" = 8,000') showing faults, structural axes, petroleum prospects
  Second Vertical Derivative of Bouguer Gravity Map (1" = 8,000')
  Gravity Profiles
  Theoretical Models
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $12,000 (Requires ownership of both helicopter and road stations)

Survey D Map: 26K gif file

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Thrustbelt Survey DD, Utah Land Gravity Survey

Data

• Survey Size: 800 square miles; 866 stations
• Data Spacing: ¼ mile road stations
• Data Provided: Simple Bouguer Gravity Map
• Total Cost: $6,928
• Cost/Station: $8

Interpretation

• Available upon request

Survey DD Map: 8K gif file

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Thrustbelt Survey E, Wyoming Helicopter Gravity Survey

Data

• Survey Size: 590 square miles; 185 helicopter stations; 235 road stations
• Data Spacing: Helicopter - 1 mile grid; Road - ¼ mile (surveyed with inertial surveying systems)
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $11,600
• Cost/Station: Helicopter - $50; Road - $10

Interpretation

• Available upon request

Survey E Map: 10K gif file

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Thrustbelt Survey F, Idaho Helicopter Gravity Survey

Data

• Survey Size: 1,300 square miles; 1,300 stations
• Data Spacing: Helicopter - 1 mile grid
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" - 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $58,500
• Cost/Station: $45

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Gravity Interpretation Map (1" - 4,000') showing: faults, structural axes, major gravity high and low trends, tertiary thickness
  Second Vertical Derivative of Gravity (1" = 4,000')
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $9,000

Survey F Map: 12K gif file

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Thrustbelt Survey F - North, Idaho Helicopter Gravity Survey

Data

• Survey Size: 275 square miles; 275 stations
• Data Spacing: Helicopter - 1 mile grid
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $13,750
• Cost/Station: $50

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Gravity Interpretation Map (1" = 4,000') showing: faults, major gravity high and low trends, tertiary thickness
  Second Vertical Derivative of Gravity Map (1" = 4,000')
  Bouguer, Residual, and Regional Gravity Profiles
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $5,000

Survey F-North Map: 10K gif file

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Hingeline, Survey G, Utah Helicopter Gravity Survey

Data

• Survey Size: 2,910 square miles; 1,170 helicopter stations: 1,640 road stations
• Data Spacing: Helicopter - 6,900 foot grid; Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $52,650
• Cost/Station: Helicopter - $45; Road - $5

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Results of Interpretation Map (1" = 8,000') showing: faults, gravity high trends, isopach on valley fill thickness
  Regional Gravity Map (1" = 8,000')
  Residual Gravity Map (1" = 8,000')
  Bouguer, Residual, and Regional Gravity Profiles
  Second Vertical Derivative of Gravity (1" = 8,000')
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $16,000

Survey G Map: 25K gif file

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Hingeline Survey J, Utah Land / Helicopter Gravity Survey

Data

• Survey Size: 2,285 square miles; 404 helicopter stations; 2,655 road stations
• Data Spacing: Helicopter - 7,000 foot grid; Road - ½ mile
• Terrain Corrections: Through Hayford-Bowie Zone J (helicopter stations only)
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $31,770
• Cost/Station: Helicopter - $45; Road - $5

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Interpretation Map (1" = 8,000') showing: faults, structural axes, petroleum prospects, outline of magnetic bodies
  Residual Gravity Map (1" = 8,000')
  Low Density Isopach Map (1" = 8,000')
  Second Vertical Derivative of Bouguer Gravity Map (1" = 8,000')
  Magnetic Profiles
  Bouguer, Residual, and Regional Gravity Profiles
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $7,500

Survey J Map: 20K gif file

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Southern Hingeline, Survey S, Nevada Helicopter Gravity Survey

Data

• Survey Size: 2,052 square miles; 1,076 helicopter stations; 975 road stations
• Data Spacing: Helicopter - 6,950 foot grid; Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $55,245
• Cost/Station: Helicopter - $45; Road - $7

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Interpretation Map (1" = 8,000') showing: faults, structural axes, petroleum prospects, outline of magnetic bodies
  Regional Gravity Map (1" = 8,000')
  Residual Gravity Map (1" = 8,000')
  Interpretation Profiles
  Low Density Isopach Map (1" = 8,000')
  Enlargement of Aeromagnetic Map of Nevada, USGS (1" = 8,000')
  Magnetics Reduced-to-Pole Map
  Second Vertical Derivative of Magnetics Reduced-to-Pole
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $10,000

Survey S Map: 17K gif file

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Southern Hingeline Survey S - South, Nevada Helicopter Gravity Survey

Data

• Survey Size: 455 square miles; 250 stations
• Data Spacing: Helicopter - 6,950 foot grid
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $12,500
• Cost/Station: $50

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Interpretation Map (1" = 8,000') showing: faults, structural axes, petroleum prospects, outline of magnetic bodies
  Regional Gravity Map (1" = 8,000')
  Residual Gravity Map (1" = 8,000')
  Interpretation Profiles
  Magnetic Profiles
  Low Density Isopach Map (1" = 8,000')
  Enlargement of Aeromagnetic Map of Nevada, USGS (1" = 8,000')
  Magnetics Reduced-to-Pole Map
  Second Vertical Derivative of Magnetics Reduced-to-Pole
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $5,000

Survey S-South Map: 11K gif file

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Southern Hingeline Survey T, Nevada/Utah Helicopter Gravity Survey

Data

• Survey Size: 1,990 square miles; 1,056 helicopter stations, 585 road stations
• Data Spacing: Helicopter - 6,600 foot grid; Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $52,200
• Cost/Station: Helicopter - $45; Road - $8

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Results of Interpretation Map (1" = 8,000') showing: faults, structural axes, petroleum prospects, outline of magnetic bodies, low density isopach contours
  Second Vertical Derivative of Bouguer Gravity Map (1" = 8,000')
  High and Low Frequency Gravity Maps (1" = 8,000')
  Bouguer Gravity and Magnetics Profiles
  Enlargement of Aeromagnetics Map of Nevada, USGS
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $7,000

Survey T Map: 24K gif file

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Disturbed Belt Survey U, Montana Helicopter Gravity Survey

Data

• Survey Size: 1,390 square miles; 905 helicopter stations; 1,108 road stations
• Data Spacing: Helicopter - 1 mile grid; Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $49,589
• Cost/Station: Helicopter - $45.00; Road - $8.00
• NOTE: University of Utah stations are included in data set but not in chargeable station count.

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  Interpretation Map showing: faults, structural axes, petroleum prospects
  Second Vertical Derivative of Bouguer Gravity Map
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $10,000

Survey U Map: 16K gif file

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Hingeline, Tintic Valley, Utah Land Gravity Survey

Data

• Survey Size: 185 square miles; 555 stations
• Data Spacing: Road - ¼ mile
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $2,775
• Cost/Station: $5

Integrated Gravity / Geologic Structural Interpretation

• Data Provided:
  High Density Basement Shape Map (1" = 4,000') showing: faults, valley fill isopachs
  Structural Profiles across valley
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $5,000

Tintic Valley Map: 7K gif file

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Trinity-Humboldt-Eugene Mountains, Nevada New Aeromagnetic Data

Data

• Survey Size: 9,245 line miles
• Data Provided:
  Maps at 1/62,500 and 1/24,000 scale: total magnetic intensity (with IGRF removed), flight-line locations
  Profiles at 1/62,500 scale
  Digital data tape
  Report
• Cost:
  Complete Survey: $32,358; Maps Only: $8,750
  $4.00/line mile for partial purchase including digital data tape

Trinity-Humboldt-Eugene Mountains, Nevada Map: 11K gif file

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Uinta Mountains, Utah and Wyoming Helicopter Gravity Survey

Data

• Survey Size: 2,500 square miles; 2,000 helicopter stations acquired using inertial surveying
• Data Spacing: One station per square mile on the flanks of the mountains; one station per four square miles over the mountain crest
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $110,000
• Cost/Station: $55

Interpretation

• Quote available upon request

Uinta Mountains Map: 25K gif file

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West Big Horn Basin, Wyoming Helicopter Gravity Survey

Data

• Survey Size: Approximately 1,000 square miles; 1,589 stations acquired using inertial surveying
• Data Spacing: 3,500' station spacing
• Terrain Corrections: Through Hayford-Bowie Zone J
• Data Provided:
  Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity and Bouguer gravity calculated for three densities
  Report describing data acquisition and reduction
  Bouguer Gravity Map at a scale of 1" = 4,000'. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network.
• Total Cost: $79,450
• Cost/Station: $50

Interpretation

• Data Provided:
  Bouguer Gravity Map reduced with variable densities based on elevation as determined from density profiles constructed over various topographic features
  Regional Gravity Map (1" = 4,000')
  Residual Gravity Map (1" = 4,000')
  Gravity Interpretation Map (1" = 4,000') showing: faults, structural axes, major gravity high and low trends, tertiary thickness
  Second Vertical Derivative of Gravity (1" = 4,000')
  Complete report discussing methods and results of interpretation
• Interpretation Cost: $10,000

West Big Horn Basin Map: 18K gif file

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