Magnetic Survey

Definition - What does Magnetic Survey mean?

Magnetic Survey is a method used by geologists in archaeological geophysics. Through Magnetic Survey, geologists can analyze the Earth's magnetic field and the spatial variation in it. In other applications, a Magnetic Survey is also helpful in locating artifacts and other findings inside the earth. A Magnetic Survey is not limited to just the earth, it is also conducted under sea and in air, i.e., in marine archaeology survey and aeromagnetic survey. A special device magnetometer is used to conduct the Magnetic Survey that helps in sensing and measuring the magnetic field strength.

Petropedia explains Magnetic Survey

Magnetometer, a special measurement device is used for finding the magnetic field and measuring a magnetic material's magnetization. A magnetometer is widely used to conduct Magnetic Surveys. A Magnetic Survey can be done by archaeologists in terrestrial and marine archaeology. Sometimes, aeromagnetic survey is also done through aircrafts. The main principal of a Magnetic Survey is to use the magnetometer to sense and measure the magnetic field. For instance, a terrestrial magnetic survey is helpful in locating and mapping the archaeological sites. On the other hand, a marine magnetic survey is helpful in exploring the underwater archaeological sites. If the archaeological geologists want to cover a large area on earth's surface, then aeromagnetic survey is the best way to do so.

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