NZ Geomechanics News NZ Geomechanics News NZGS Published 20/12/2015 Downloads 90_Dec2015_NZGeoNews-3.pdf Published 20/12/2015 Collection NZ Geomechanics News Compilation NZ Geomechanics News>Issue 90 - December 2015 Issue 90 Location New Zealand Type Magazine (full) ISSN 0111-6851