Figure F26. Results of a test to determine the effects of core scraping (see text) on the magnetization of soft-sediment archive halves. A, B. Inclination and intensity of Sections 208-1265B-7H-5 and 7H-6 after demagnetization at 15 mT and before scraping (circles), after scraping without further demagnetization (squares), and after scraping followed by redemagnetization to 15 mT (triangles). Note the large increase in intensity following scraping that is mostly removed by redemagnetization to 15 mT. C. Inclination of whole-round and archive-half Section 205-1265B-10H-2 before and after scraping. D. Inclination of whole-round and working-half Section 205-1265B-10H-2 before and after scraping. All measurements in C and D were made immediately following demagnetization to 15 mT.

Figure F26. Results of a test to determine the effects of core scraping (see text) on the magnetization of soft-sediment archive halves. A, B. Inclination and intensity of Sections 208-1265B-7H-5 and 7H-6 after demagnetization at 15 mT and before scraping (circles), after scraping without further demagnetization (squares), and after scraping followed by redemagnetization to 15 mT (triangles). Note the large increase in intensity following scraping that is mostly removed by redemagnetization to 15 mT. C. Inclination of whole-round and archive-half Section 205-1265B-10H-2 before and after scraping. D. Inclination of whole-round and working-half Section 205-1265B-10H-2 before and after scraping. All measurements in C and D were made immediately following demagnetization to 15 mT.