Geological Implications of an Expanding Earth (part 2)
@robot
Published in
Nature
· 2 weeks ago
Cox & Doell (1961a) further considered that, if contemporaneous palaeomagnetic data from two localities on the same stable continental block have different inclinations I 1 and I 2 ( Figure 52 ) so that the two localities are on different circles of geomagnetic latitude, and if the ancient geomagnetic field was dipolar, then the ancient Earth radius R a may be found from: R_a = d/(cot^{-1} (½tanI_1) - cot^{-1} (½tanI_2)) Where d is the linear length of the great circle arc connecting the two sampling sites (Hospers & van Andel, 1967; van Andel & Hospers, 1968a). Cox & Doell (1961a) used this method to evaluate the Earth...