MAGNETIC REMANENCE ACQUISITION IN FINNISH LAKE-SEDIMENTS

被引：73

作者：

STOBER, JC

THOMPSON, R

机构：

[1] Department of Geophysics, Edinburgh, EH9 3JZ, James Clerk Maxwell Building, Mayfield Road

来源：

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY | 1979年 / 57卷 / 03期

关键词：

D O I：

10.1111/j.1365-246X.1979.tb06786.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Summary. Magnetic studies have been carried out on organic sediments from five Finnish lakes to determine the carrier(s) of the stable NRM and to find how the remanence is acquired. Single or pseudo‐single domain ‘magnetite’ is thought to carry the NRM. It was found that drying and cooling sediment samples resulted in a loss of NRM which was attributed to the misalignment of small magnetic particles. Low‐field experiments were carried out on sediment samples in different physical states and from the results of these investigations it was concluded that post‐depositional processes are important in the acquisition of an NRM. Stabilization of magnetic grains is thought to be due to the growth of gels in the organic sediment rather than to dewatering. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：727 / 739

页数：13

共 10 条

[1] THEORY OF MAGNETIC VISCOSITY OF LUNAR AND TERRESTRIAL ROCKS [J].