Figure F5. Comparison of Site 1179 paleocolatitude with other Pacific paleomagnetic data from basalt cores and anomalous skewness data. Heavy red arc shows the Site 1179 paleocolatitude curve (the locus of points where the paleocolatitude predicts the paleomagnetic pole to be located), assuming the section is reversed polarity (preferred model, see text for discussion), and the dashed red line shows the circle corresponding to normal polarity. Lighter arcs show paleocolatitude arcs for basalt core data from other mid-Cretaceous DSDP and ODP holes (110-130 Ma). Numbers are site numbers. Data sources are: Site 166 (Cox and Gordon, 1984); Site 289 (Hammond et al., 1975); Sites 303 and 304 (Larson and Lowrie, 1975); Sites 800 and 802 (Wallick and Steiner, 1992); Site 843 (Helsley, 1993); Site 865 (Sager, this volume); Sites 872, 878 (2), 879 (Nakanishi and Gee, 1995). Solid circle represents a 125-Ma paleomagnetic pole determined mainly from magnetic anomaly skewness (Petronotis et al., 1992). Solid square is a 117-Ma paleomagnetic pole calculated from averaging seamount paleomagnetic poles (Sager and Koppers, 2000). The ellipse and circle surrounding these poles are 95% confidence regions.

Figure F5. Comparison of Site 1179 paleocolatitude with other Pacific paleomagnetic data from basalt cores and anomalous skewness data. Heavy red arc shows the Site 1179 paleocolatitude curve (the locus of points where the paleocolatitude predicts the paleomagnetic pole to be located), assuming the section is reversed polarity (preferred model, see text for discussion), and the dashed red line shows the circle corresponding to normal polarity. Lighter arcs show paleocolatitude arcs for basalt core data from other mid-Cretaceous DSDP and ODP holes (110-130 Ma). Numbers are site numbers. Data sources are: Site 166 (Cox and Gordon, 1984); Site 289 (Hammond et al., 1975); Sites 303 and 304 (Larson and Lowrie, 1975); Sites 800 and 802 (Wallick and Steiner, 1992); Site 843 (Helsley, 1993); Site 865 (Sager, this volume); Sites 872, 878 (2), 879 (Nakanishi and Gee, 1995). Solid circle represents a 125-Ma paleomagnetic pole determined mainly from magnetic anomaly skewness (Petronotis et al., 1992). Solid square is a 117-Ma paleomagnetic pole calculated from averaging seamount paleomagnetic poles (Sager and Koppers, 2000). The ellipse and circle surrounding these poles are 95% confidence regions.