Calibrating the relative paleointensity standard curve.

对大洋沉积物岩心的相对古地磁强度(RPI)和火山样品的绝对古地磁强度(API)进行了对比。所使用的火山岩是焊接的凝灰岩，它们承载着在沉积岩芯中观察到的广泛分布的特弗莱斯，记录着地磁漂移的熔岩流，以及布伦尼斯-松山边界的熔岩流。结果给出了RPI与API的线性关系，但焊接凝灰岩的地层对比不能很好地确定，这使我们能够对RPI进行绝对值标定。这也表明RPI作为地磁强度变化的记录是合适的。

Comparison between Relative Paleomagnetic Intensity(RPI) of oceanic sediment cores and Absolute Paleomagnetic Intensity(API) of volcanic samples are conducted. The volcanic rocks used are welded tuffs which bear wide spread tephras observed in sediment cores, lava flows recording geomagnetic excursions, and lava flows at Brunhes-Matuyama boundary. The results give linear relationship of RPI and API, except for a welded tuff whose stratigraphic correlation is not well determined, and enable us the absolute value calibration of the RPI. It also indicates that the RPI is appropriate as the record of geomagnetic intensity variation.