The 10Be marine record of the last 3.5 Ma

被引：10

作者：

Aldahan, A

Possnert, G

机构：

[1] Univ Uppsala, Tandem Lab, S-75121 Uppsala, Sweden

[2] Uppsala Univ, Inst Earth Sci, S-75236 Uppsala, Sweden

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 172卷

关键词：

accelerator mass spectrometry; Be-10; marine sediment; quaternary;

D O I：

10.1016/S0168-583X(00)00214-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present in this study a Be-10 profile from a deep-sea sediment section extending to 3.5 Ma. The Be-10 concentration ranges at 2-14 x 10(8) atoms/g and shows a clear decay trend. The flux of Be-10 ranges at 1-5 x 10(6) atoms/cm(2) y and averages at approximate to 2.5 x 10(6) atoms/cm(2) y. Enhancements in the Be-10 record occur at the paleomagnetic reversals and excursions suggesting strong effect of changes in the geomagnetic field intensity. Indication of climatic-related variability is also observed from the generally higher Be-10 Values during interglacial compared to glacial periods. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：513 / 517

页数：5

共 16 条

[1] Linking the 10Be continental record of Lake Baikal to marine and ice archives of the last 50 ka:: Implication for the global dust-aerosol input [J].