Paleomagnetic dating technique Horny girls that wanna cam for you on skype
That may mean that another reversal is coming, but not for a few thousand years.
Archaeomagnetic dating was described in the 1992 publication “Paleomagnetism: Magnetic Domains to Geologic Terranes.” By Robert F. Archaeomagnetic dating requires an undisturbed feature that has a high likelihood of containing a remnant magnetic moment from the last time it had passed through the Curie point.Before clay is fired and while lava is still in a molten state, the very weak magnetic fields of individual particles are randomly oriented. Later, its thermoremnant magnetism is measured with a magnetometer.By comparing these data, a researcher can determine the direction of magnetic north at the last time the sample had been exposed to a high temperature.. The earliest evidence of writing anywhere in the world only goes back about 5000 years.
Paleoanthropologists frequently need chronometric dating systems that can date things that are many thousands or even millions of years older.
A compass needle would have pointed to the south pole during some periods and to the north pole during others.