The nature of carbon dioxide waters in Snaefellsnes, western Iceland

S. Arnórsson*, I. Barnes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Over 20 occurrences of thermal and non-thermal waters rich in carbon dioxide are known in the Snaefellsnes Peninsula of western Iceland. On the basis of the thermal, chemical and isotopic characteristics of these waters, and hydrological considerations, it is concluded that they represent meteoric waters which have seeped to variable depths into the bedrock. Ascending carbon dioxide gas originating from intrusions or the mantle mixes with the meteoric waters to produce carbon dioxide waters: at considerable depth in the case of the thermal carbon dioxide waters but close to the surface in the case of cold carbon dioxide waters. The occurrence of carbon dioxide waters cannot be regarded as evidence for underground geothermal reservoirs.

Original languageEnglish
Pages (from-to)171-176
Number of pages6
Issue number2-3
Publication statusPublished - 1983


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