Figure F29. Comparison of a proxy record for relative geomagnetic paleointensity from Site 1233 with the Sint-200 global low-resolution relative paleointensity stack (Guyodo and Valet, 1996) and with a high-resolution southern hemispheric record, shown with a 4-k.y. running mean, from sub-Antarctic South Atlantic ODP Site 1089 (Stoner et al., in press). The Site 1233 shipboard relative paleointensity proxy is derived by normalizing the natural remanent magnetization (NRM) measured after AF demagnetization at 25 mT from archive-half sections with the whole-core MST-derived low-field magnetic susceptibility (MS) (see "Paleomagnetism"). The record presented is from the shipboard splice. Vertical lines indicate preliminary correlations between Sites 1233 and 1089 and Sint-200. Site 1089 is dated by a high-resolution benthic oxygen isotope record (Stoner et al., 2002). The inferred position of the Laschamp Event is indicated.

Figure F29. Comparison of a proxy record for relative geomagnetic paleointensity from Site 1233 with the Sint-200 global low-resolution relative paleointensity stack (Guyodo and Valet, 1996) and with a high-resolution southern hemispheric record, shown with a 4-k.y. running mean, from sub-Antarctic South Atlantic ODP Site 1089 (Stoner et al., in press). The Site 1233 shipboard relative paleointensity proxy is derived by normalizing the natural remanent magnetization (NRM) measured after AF demagnetization at 25 mT from archive-half sections with the whole-core MST-derived low-field magnetic susceptibility (MS) (see "Paleomagnetism"). The record presented is from the shipboard splice. Vertical lines indicate preliminary correlations between Sites 1233 and 1089 and Sint-200. Site 1089 is dated by a high-resolution benthic oxygen isotope record (Stoner et al., 2002). The inferred position of the Laschamp Event is indicated.