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palaeofield
palaeofield n. 
/ˈpeɪlɪə(ʊ)fiːld/, /ˈpeɪlioʊˌfild/ Geology (the strength of) the earth's magnetic field at some time in the past.
Brit. /ˈpalɪə(ʊ)fiːld/
, /ˈpalɪə(ʊ)fiːld//ˈpeɪlɪə(ʊ)fiːld/U.S. /ˈpeɪliəˌfild/
, /ˈpeɪliəˌfild//ˈpeɪlioʊˌfild/ΘΚΠ
the world > matter > physics > electromagnetic radiation > magnetism > earth magnetism > [noun] > magnetic field
palaeofield1966
1966 Science 16 Dec. 1413/2 (heading) Earth's paleofield.
1968 New Scientist 4 Apr. 16/1 Since the newly acquired moment is proportional to the known field, and the natural moment of the virgin rock is proportional to the ancient field, a simple equation allows the ‘palaeofield’ to be calculated.
1994 Earth & Planetary Sci. Lett. 126 171 Coarse-grained igneous and metamorphic rocks can only record a paleofield direction accurately if there is a suitable orientation distribution of the rock-forming minerals that host the ferromagnets.
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