1. Investigating the preservation of nitrate isotopic composition in a tropical ice core from the Quelccaya Ice Cap, Peru. Issue 5 (13th March 2014) Authors: Buffen, Aron M.; Hastings, Meredith G.; Thompson, Lonnie G.; Mosley‐Thompson, Ellen Journal: Journal of geophysical research Issue: Volume 119:Issue 5(2014:May) Page Start: 2674 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗