Oxygen isotope composition of subglacially precipated calcite: possible paleoclimatic implications
Hanshaw BB and Hallet B. 1978. Oxygen isotope composition of subglacially precipated calcite: possible paleoclimatic implications. Science. 200(4347):1267-1270
The authors suggest that the oxygen isotope composition of calcite that formed under a glacier records the oxygen isotope composition of the ice from that glacier and is relatively independent of the calcite composition of the bedrock. Analyses of calcite precipitated under Pleistocene ice sheets may therefore lead to an estimate of the oxygen isotopic composition of the ice sheet. This, in turn, would allow estimation of the isotopic composition of Pleistocene oceans and correction of the paleotemperature scale based on foraminiferal oxygen isotopic analyses.
- Type
- Journal Article
- Authors
- Hanshaw, Bruce; Hallet, Bernard
- Units
- GLAC
- Keywords
- Glaciers, Ice, isotopic composition, Measurement, Paleoclimatology, Pleistocene, temperature effects