Russian scientists, who investigate behavior of our planet’s magnetic field, are absolutely sure that we should not blame a meteorite for sudden death of almost all dinosaurs.
Their research showed that mass extinctions of living beings had taken place 20-30 million years after each superchron ended. A superchron is a time interval during which no reversals of planet’s geomagnetic field takes place, in other words, Earth’s poles do not change places.
Reversion of geomagnetic field is a bright and mysterious phenomenon, since it is irregular and cannot be predicted.
Source: ITAR-TASS