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You are here: Home / Consulting Services / Geophysical Services / Geophysical Techniques / Magnetic Methods
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Magnetic Methods

Unlike electromagnetic conductivity mapping, which actively generates electromagnetic fields in the subsurface, a magnetometer measures subtle variations in the earth’s magnetic field passively, without imposing an artificial field.

Magnetometers are sensitive to two types of magnetic fields: induced and remnant. Induced fields are additional magnetic fields induced in metallic objects by the earth’s magnetic field. In contrast, remnant magnetic fields are due to magnetic minerals found in certain types of bedrock and soils. Thus, by detecting minute variations in the earth’s magnetic field caused by the addition of one or both of aforementioned magnetic fields, magnetometers can be used to detect metal objects as well as variations in soil and rock type.

Mundell & Associates uses magnetic methods to locate abandoned cultural resource areas, as well as to locate buried metal objects.

Magnetic Method Applications

  • Unexploded Ordnance (UXO) mapping
  • Locating Underground Storage Tanks (UST) and Buried Drums
  • Locating Buried Debris and Landfills
  • Archaeology
  • Mineral Exploration
Magnetometer
Magnetic Survey

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  • Consulting Services
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    • Geophysical Services
      • Environmental Applications
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      • Natural Resources
      • Archaeological Studies
      • Geophysical Techniques
        • Electromagnetic Metal Detection
        • Ground Penetrating Radar (GPR)
        • Electromagnetic Conductivity Mapping
        • Electrical Resistivity
        • Seismic Methods
        • Magnetic Methods
        • Borehole Logging
        • Microgravity

News

Karst, Cake, and Indiana Geology

April 22, 2022in Science and Environment

Mundell & Associates Featured on International News Program

November 30, 2021in Company News

Ask a Professional – What sparked your interest in the Earth Sciences?

October 14, 2021in Company News

Earth Science Week 2021 – Water Today and for the Future

October 10, 2021in Community Involvement, Science and Environment

Our Affiliations

- Midwestern States Environmental Consultants Association
- Environmental & Engineering Geophysical Society
- Professional Geologists of Indiana, Inc.
- National Ground Water Association
- American Societies of Chemical / Civil Engineers Engineers without Borders
- Association of Environmental and Engineering Geologists
- Indiana Association for Environmental Professionals
- Geological Society of American
- Indiana Circular Economy Initiative
- Economy of Communion
- Indiana Recycling Coalition

.....and more more affiliations

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Don’t Top Off Your Gas Tank

Why?

  1. Topping off the gas tank can result in your paying for gasoline that is fed back into the station’s tanks because your gas tank is full.
  2. Gasoline vapors are harmful to breathe
  3. You need extra room in your gas tank to allow the gasoline to expand.
  4. Topping off your gas tank may foul the station’s vapor recovery system.

Source: EPA

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