The Magnitude Magnetic Transform (MMTs)’s Characteristics And Application

Magnetic anomaly contour map(△T contour map,△T≈Xacos(A1)cos(I0)+Yasin(A1)+Zasin(I0)Formulas Xa，Yaand Zaare magnetic anomaly field component field,I0，A1are anomalous field inclination and magnetic declination) Lateral variation of the magnetization may be delineated crust.But Magnetic anomalies and gravity anomaly is different, gravity anomaly is a direct result of unusual geological body, however, the extreme values of the magnetic anomalies and patterns deviate from the horizontal position with the unusual geological, this also led to difficulties in the analysis of magnetic anomaly data and associated geological body. Magnetic data is measured on the land, air or sea, it will be subject to this magnetic anomaly magnetization direction of the geological body, and this effect is very strong. The observedmagnetic field vector direction is generated by the remanence, but also by the impact of induced magnetization direction and shape of the geological body.The magnitude magnetic transforms anomalies are very close to the horizontal position of the geological body. And easier to explain than the measured anomaly map.The magnitude magnetic transforms is based on the derivative of total magnetic fieldstrength modulus and TMA itself composed of. Including the conversion modulus and conversion modulus.Calculated the magnetic anomalies conversion modulus when necessary to calculatethe level of the first derivative. At the same time he also order derivative of the magneticfield: The first order derivative of the modulus with the Found field of the same order ofconversion Ta, the conversion modulus of E field component of, the conversion modulus Lexpressed higher order derivatives. The magnitude magnetic transforms only positiveresults and gravity anomaly is somewhat similar to. Extreme values generated by theconversion modulus Ta, compared with the measured field, become more smooth andsimple shapes, corresponding to the center of the geological body. Compared with the poleconversion modulus Ta not need to enter data related to the magnetization direction, themagnetization direction of a region of the anomalous body is the same, then the conversionmodulus of the magnetic anomaly can get a very good application. Conversion modulus Eas a special magnetic gradient field, he has a more extreme value to represent the thegeological body position, and the tectonic line. The magnitude magnetic transforms by the magnetization direction is very low, but also better determination of the location of thegeological body. The magnitude magnetic transforms at low latitudes conversion than thetraditional way of extremely more effective.In this paper, the establishment of the simple and complex3D models, verify themagnitude magnetic transforms determine the effect of the geological body position, it canbe seen that the magnitude magnetic transforms determine the location of the geologicalbody has a high resolution, Finally, through the actual data processing instructions themagnitude magnetic transforms effect in practical applications.