Terrestrial magnetic anomalies

Terrestrial magnetic anomalies. They are the deviations that the values ​​of the elements of the earth’s magnetism experience with respect to their average values ​​in a given place. Anomalies that span huge areas are called regional, unlike local anomalies that span areas from several tens of meters to thousands of square km.

Summary

[ hide ]

  • 1 Magnetic anomaly of Eastern Siberia
  • 2 Kursk anomaly
  • 3 Gulf of Aden anomaly
  • 4 Variability and anomalies
  • 5 Sources

Eastern Siberian magnetic anomaly

It is a regional anomaly and a western decline was observed instead of an eastern one, the magnetic field of this anomaly is slowly dying out with height, which means that they are caused by processes that operate in the depth of the earth, possibly in the earth’s core.

Kursk anomaly

It is a local anomaly that creates an intensity in the magnetic field 5 times greater than the average intensity of the earth’s magnetic pole, this manifests itself in changes in declination from 0 to 180 degrees and declination from 40 to 80 degrees . Local anomalies are due to the presence of mineral and magnetic rock deposits in the upper layers of the Earth’s crust. With height, the magnetic field of these anomalies becomes fairly rapid.

Gulf of Aden anomaly

The anomalies indicate that the gulf has at least three different sedimentation rates, which is why it has continuously formed layers that affect the geomagnetic activity of the region, the presence of geomagnetic reversal processes and space-time alterations have been reported at the level vertically owned, these anomalies correspond to the measurement of several hundred gamma units in the region.

It is stated that:

“The nature of the Gulf of Aden events is one of the keys to the reformulation of conventional physics and is closely related to the logic of Albert Einstein’s theory of relativity”

.

Variability and anomalies

Deviations

The variable magnetic field constitutes 6% of the total intensity of the Earth’s magnetic field and is produced by the movement of electrically charged particles in the atmosphere that appears to overlap the permanent magnetic field. On the background of the calm magnetic field arise its different variations.

There are variations with an annual period, produced by the temporary movements of the Earth ‘s atmosphere , daily variations, related to the change of day and night and lunar, which are the result of atmospheric tides . Variations that have a period of 5 to 100 s, called pulsations, are unexplained. The most recent magnetic anomalies seem to have a higher incidence in the southern hemisphere , where they modify the edges and increase the area of ​​the great anomaly of the South Atlantic , discovered at the end of the 1950s.

The affectation of the magnetic field, according to the most precise calculations provided by the international network of terrestrial and orbital geomagnetic observatories, represents 10 to 15 percent of the levels observed 150 years ago. Although such variation is within the normal limits observed in prehistoric magnetic fluctuation events , particular emphasis is being made on the observation of the phenomenon at the present time, in order to know it more thoroughly and take protective and remediation measures against a probable aggravation of its effects in the future.

 

Leave a Comment