Paleomagnetic dating or archaeomagnetism

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However, we can still set a rough maximum to the initial energy from basic physical considerations, as Dr.Barnes has done.[2] Such a maximum would limit the age to roughly 10,000 years.The graph expresses the annual evolution of the frequency of use of the word «archaeomagnetism» during the past 500 years.Its implementation is based on analysing how often the term «archaeomagnetism» appears in digitalised printed sources in English between the year 1500 and the present day.Eighmy (2000) and Sternberg (2008) present historical reviews of archaeomagnetism.It is a subdiscipline of paleomagnetism, which is the study of the magnetic field over geological time as evidenced through geological specimens in the ...This "dynamic-decay" theory is a more general version of the free-decay theory, since it takes account of motions in the core fluid.

By estimating the field intensity everywhere (in, on, and above the earth), we can calculate the total electrical "energy" stored in the field.

Creationists of the 1970s extrapolated today's decay back into the past, showing that the field could not be more than about 10,000 years old, assuming a constant decay of intensity.

Unfortunately, the archaeomagnetic data do not support that assumption.[7] Instead, the data show that the field intensity at the earth's surface fluctuated wildly up and down during the third millennium before Christ (see figure 1). D., the decrease was nearly as fast as it is today.

The earth's magnetic field is a powerful witness for a world much younger than the billions of years required by evolutionary theories.

Let's start the story with the most prominent feature of the field today--its very rapid decay.

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