Fig. 4From: Reductive chemical demagnetization: a new approach to magnetic cleaning and a case study of reef limestonesIsothermal remanent magnetization (IRM) variation during the chemical demagnetization using reductive etchants. Circles (squares) indicate the results of ascorbic acid solution (potassium iodide solution). Solid and dashed lines denote the results of the dripping and dipping methods, respectively. Ascorbic acid + dipping is specimen 1d, ascorbic acid + dripping is 2d, potassium iodide + dipping is 4d and potassium iodide + dripping is 5d, respectivelyBack to article page