The magnetic anomalies represented on this map originate primarily in igneous and metamorphic rocks, in the Earth’s crust and possibly, uppermost mantle. Magnetic anomalies represent an estimate ...

This map is the first global compilation of the wealth of magnetic anomaly information derived from more than 50 years of aeromagnetic surveys over land areas, research vessel magnetometer ...

The first global map of magnetic peculiarities - or anomalies - on Earth has been assembled by an international team of researchers. Magnetic anomalies are caused by differences in the magnetisation ...

You can also spot magnetic anomalies—places with unusually high amounts of magnetism—on the map. One such anomaly is in the Central African Republic. If you use a magnetic compass while ...

The magnetic anomaly in the South Atlantic Ocean was first discovered in 1958. New observations by NASA and the ESA reveal it is evolving – potentially splitting in two. And that has practical ...

A vast and evolving anomaly in Earth’s magnetic field, situated above South America and the southern Atlantic Ocean, continues to attract focused attention from NASA researchers. This region ...

Researchers have spotted interesting changes in the South Atlantic Anomaly, which is a region of Earth’s magnetic field that has a large dent. The area of weak magnetism appears to be splitting ...

Their findings corresponded with a known magnetic surge called the “Levantine Iron Age geomagnetic Anomaly,” which took place between 1050 and 550 BC. It had previously been documented in ...

an ancient river and a large magnetic anomaly in the southern part of the lake. These new maps prove for the first time that Rotorua's mainland hydrothermal systems extend into the lake's hidden ...