Figure F15. Declination and inclination data from Hole 1143A, 110-180 mcd. Inclinations tend to be steeply positive because of an overprint from the drill string, whereas declinations cluster around 0° due to a radial overprint. These overprints obscure the magnetostratigraphy and could not be removed by either AF demagnetization to 60 mT or thermal demagnetization to 330°C.