Abstract Earth’s Magnetic Field is the magnetic field extended from inner Earth till out to space, meeting solar wind. Its importance crucial due deflection in most of wind having as a result existence ozone layer and protection UV radiation - basic mechanism for preservation life on Earth. Although deeply studied its contribution preservation, an important question still unanswered possible re...

Palaeomagnetic data are presented from early Silurian (Upper Llandovery) lavas from the Tortworth Silurian inlier of south-west England. Two magnetization components are recognized on the basis of contrasting demagnetization characteristics. A lower unblocking-temperature component (<350 "C) is oriented parallel to the Earth's present magnetic field at the sampling site (N = 46, declination = 3...

A recent study has found that sparrows moved gradually east above the Arctic Circle completely altered their migration strategy after encountering the massive natural change in declination near the magnetic pole. This should not happen--or should it?