CGRG Bibliography of Canadian Geomorphology
Search Results

---

Author : Grasby, S.E.; Allen, C.C.; Longazo, T.G.; Lisle, J.T.; Griffin, D.W.; and Beauchamp, B.
Date : 2003.
Title : Biogeochemical sulphur cycle in an extreme environment - life beneath a high arctic glacier, Nunavut, Canada,
Publication : Journal of Geochemical Exploration
Issue : 78(9):
Page(s) : 71-74.



---

Abstract

Unique springs discharge from the surface of a high arctic glacier, releasing H2S, and depositing native sulphur, gypsum, and calcite. A rare CaCO3 polymorph, vaterite, is also observed. Physical and chemical conditions of the spring water and surrounding environment, as well as mineralogical and isotopic signatures, argue for biologically mediated redox reactions controlling sulfur. Cell counts and DNA analyses, confirm bacteria are present in the spring system.

---

Bibliography of Canadian Geomorphology