Borehole optical stratigraphy and neutron-scattering density measurements at Summit, Greenland

被引：22

作者：

Hawley, Robert L.

Morris, Elizabeth M.

机构：

[1] Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA

[2] British Antarctic Survey, NERC, Cambridge CB3 0ET, England

来源：

JOURNAL OF GLACIOLOGY | 2006年 / 52卷 / 179期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.3189/172756506781828368

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

We have made side-by-side measurements in several boreholes at Summit, Greenland, using borehole optical stratigraphy (BOS) and neutron-scattering density logging techniques. The BOS logs show strong positive correlation at shallow depths with neutron-scattering logs taken in the same borehole. This supports the hypothesis that ROS detects changes in density. The positive correlation between returned brightness and density decreases with depth and finally becomes negative. We conclude this inversion of correlation is related to changes in densification regime from grain-boundary sliding to pressure sintering.

引用

收藏

页码：491 / 496

页数：6

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