Relative geomagnetic field intensity and reversals for the last 1.8 My from a central equatorial Pacific core

被引：27

作者：

Laj, C ^{[1
]}

Kissel, C ^{[1
]}

Garnier, F ^{[1
]}

HerreroBervera, E ^{[1
]}

机构：

[1] UNIV HAWAII MANOA,HAWAII INST GEOPHYS & PLANETOL,SOEST,HONOLULU,HI 96822

来源：

GEOPHYSICAL RESEARCH LETTERS | 1996年 / 23卷 / 23期

关键词：

D O I：

10.1029/96GL03261

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We have made a new analysis of core KK78O30 from the central equatorial Pacific. This core has recorded the last 4 reversals. Mineral-magnetic analysis establishes that these sediments meet the current criteria for reliable relative paleointensity determinations. Normalisation with ARM, IRM and chi yields very similar results. There is no evidence for a ''saw-tooth'' pattern such as the one obtained by Valet and Meynadier [1993] and Meynadier et al. [1994] for the last 4 million years. Rather, the average field intensity record appears to display more or less symmetric peaks and troughs, superposed to a broad high between reversals.

引用

页码：3393 / 3396

页数：4

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