NONDESTRUCTIVE DENSITY DETERMINATION ON MARINE SEDIMENT CORES FROM GAMMA-RAY ATTENUATION MEASUREMENTS

被引：24

作者：

GERLAND, S ^{[1
]}

VILLINGER, H ^{[1
]}

机构：

[1] UNIV BREMEN,FB GEOWISSENSCH,D-28334 BREMEN,GERMANY

来源：

GEO-MARINE LETTERS | 1995年 / 15卷 / 02期

关键词：

D O I：

10.1007/BF01275415

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We describe an improved nondestructive technique for density measurement based on gamma-ray absorption that permits construction of high-resolution density profiles of marine sediment cores. The system is capable of resolving vertical density variations with a spatial resolution of 4 mm and absolute accuracy of +/-1%. Comparison with conventional density determination on samples confirms the absolute accuracy. In addition to standard vertical profiling, a core rotation option is included to measure density as a function of rotation angle. This allows the quantification of the variability of density within a layer and detection of inhomogenities like ice-rafted debris or biogenic structures.

引用

页码：111 / 118

页数：8

共 10 条

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