Figure 11. Plot of natural remanent magnetization (NRM)20mT intensity, 1% of anhysteretic remanent magnetization (ARM), and the ratio of these values vs. depth for the upper Jaramillo at Site 1020. The region of the transition is marked with a dashed line. For the transitional samples, the ratio 0.01·ARM/ NRM20mT increases to 0.4.

Figure 11. Plot of natural remanent magnetization (NRM)_20mT intensity, 1% of anhysteretic remanent magnetization (ARM), and the ratio of these values vs. depth for the upper Jaramillo at Site 1020. The region of the transition is marked with a dashed line. For the transitional samples, the ratio 0.01·ARM/ NRM_20mT increases to 0.4.