Beryllium-10 in deep-sea sediments: a tracer for the Earth's magnetic field intensity during the last 200,000 years

被引：38
|
作者：
Christl, M [1 ]
Strobl, C [1 ]
Mangini, A [1 ]
机构：
[1] Univ Heidelberg, Hiedelberg Acad Sci, Inst Environm Phys, D-69120 Heidelberg, Germany
来源：
QUATERNARY SCIENCE REVIEWS | 2003年 / 22卷 / 5-7期
关键词：
D O I：
10.1016/S0277-3791(02)00195-6
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
We present a new approach for the reconstruction of the Earth's magnetic field intensity during the last 200,000 years based on Be-10 in deep-sea sediments. A simple box model that is able to describe boundary scavenging of Be-10 in the ocean is used to study the sensitivity of Be-10 to changes of water circulation and/or varying particle rain rates. The model is applied to separate transport and production signal in single Be-10 records. Vertical sediment accumulation rates are used as input values for the model calculations. The calculated scavenging factors are applied to correct the Be-10 records for boundary scavenging. The model corrected Be-10 based paleointensity record correlates well with other records from very different archives. (C) 2002 Published by Elsevier Science Ltd.
引用
收藏
页码：725 / 739
页数：15
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