Borehole optical stratigraphy and neutron-scattering density measurements at Summit, Greenland
Hawley, Robert L.; Morris, Elizabeth M.. 2006 Borehole optical stratigraphy and neutron-scattering density measurements at Summit, Greenland. Journal of Glaciology, 52 (179). 491-496. DOI: 10.3189/172756506781828368Full text not available from this repository.
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 BOS 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.
|Identification Number/DOI:||DOI: 10.3189/172756506781828368|
|Programmes:||BAS Programmes > Other Special Projects|
|NORA Subject Terms:||Glaciology|
|Date made live:||06 Feb 2009 12:14|
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