Fig. 10From: Volcanic ash in bare ice south of Sør Rondane Mountains, Antarctica: geochemistry, rock magnetism and nondestructive magnetic detection with SQUID gradiometer a Theoretical calculation of magnetic field value in response to the position of half-cylinder with a thickness of 1 mm uniformly magnetized in X axis direction with magnetization of 9.2 × 10−5 A/m. b Calculated peak value as a function of distance from sensor to sampleBack to article page