Natural residual magnetism of eruptive rocks

作者：J. G. Koenigsberger · 发表于：Terrestrial Magnetism and Atmospheric Electricity · 年份：1938 · DOI：10.1029/te043i003p00299 · 被引用次数：89 · 研究领域：Geomagnetism and Paleomagnetism Studies、Geological and Geochemical Analysis、High-pressure geophysics and materials

§ 1. The apparatus for the measurement of remanence (Jrn, Jrs, Jrc) of magnetization JK and of susceptibility K of rocks [see sections “ Literature,” Part I and Part II] are of two kinds: (a) Magnetometers, chiefly astatic [I, 1926c and 1927a, b, etc.], some showing a weak field at the position where the sample is placed, with compensation of the deflection, which requires a regular shape of specimen in measuring remanence or susceptibility [I, 1930c]; the sample may be put in a coil with a known magnetic field to measure JK for different values of H [I, 1930a, p. 273].