MagneticsThe magnetic method measures disturbances or magnetic anomalies in the earth’s naturally occurring magnetic field, which are caused by the presence of buried or surface ferrous materials such as steel or iron objects. These anomalies are measurable with a variety of instruments, including proton-precession and cesium vapor magnetometers. Data are recorded in the field using a digital data logger, and are downloaded to a portable computer for immediate mapping of the recorded data. The recorded anomaly locations can be compared to data recorded by other methods, such as electromagnetics, to check the possible locations of metal objects. The locations can then be marked in the field for further direct evaluations. Magnetic surveys are utilized to evaluate:
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Unexploded Ordnance Evaluation, Former U.S. Army SiteNinyo & Moore was retained to provide geophysical survey services and geophysical analysis for the evaluation of a 13- acre portion of a suspected unexploded ordnance (UXO) property. The U.S. Army used the site plus an additional 213 adjoining acres during World War II (WWII) as a munitions storage and trans-fer facility. The facility included approximately 37 berthing areas for railroad cars with... |
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