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Magnetometric for Mineral exploration, Underground Water exploration
Jan 31, 2019

Magnetometric for Mineral exploration, Underground Water exploration


Magnetometric method Which is the earliest method of exploratory geophysics; it has many similarities to principles and even interpretation and interpretation with methods of gravitation. But this is usually more complicated, and magnetic field changes are more irregular and more local than ground gravity. In this method, measurements of the magnetic field or its gradient are made. Because some of the material, such as magnetite, in the magnetic field of the earth, exhibit high magnetic anomalies. Iron ore, skarn, nickel and asbestos are easily discovered by magnetism assays due to their combination with magnetic ores. Even some exploratory geophysicists recommend this method for the exploration of platinum gold due to its accompaniment with black sands containing high magnetite content. The basis of the theory of this method is the response of the magnetic permeability of metals and rocks with ferromagnetic materials to the magnetic field of the earth. Historically, for the first time in Gilbert (1600), the specialist physician Queen Elizabeth I in the book

Magnetism defined the concept of the magnetic field of the earth by determining its direction at any point in the earth. In about 1640, in order to explore iron, local anomalies were identified in Sweden by measuring the magnetic field of the earth. At the end of the seventeenth century, the use of this method was a common practice for the exploration of iron ore deposits. The first fairly accurate Magnetometer Magnetometer was developed by Professor Thalen in 1873.


Prton Magnetometer

WCZ-3 Magnetometer, This device has GPS and simultaneously records magnetic field and coordinates.

 Applications: 

• Location of magnetic metals (steel tanks, buried waste and deposits , etc.)

• Exploration of hydrocarbon reserves

• Exploration of minerals and exploration of geological structures such as faults

• Archaeological discoveries

• Explosion of unexploded ordnance


Advantages:

• Relatively easy measurements

• No invasive contact with the ground

• Only detecting metals with ferromagnetic materials

• Portable with hand or truck


Limitations:

• Field gradient is sensitive to deeper targets than the whole field.

• Metal fences and metal tubes affect buildings and buildings.

• Readings are subject to natural fluctuations (use of the base station to eliminate fluctuations)