An Extraction System for Radiocarbon Microanalysis of Dissolved Organic Carbon in Glacier Ice ...
Alpine glaciers situated in mid- and low latitudes are valuable archives for paleoclimatology. They offer a continuous record of recent local climatic conditions in regions where the majority of humankind lived and still lives. For meaningful interpretation of an ice core from such an archive, accur...
| Main Author: | |
|---|---|
| Format: | Text |
| Language: | English |
| Published: |
(:null)
2017
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.7892/boris.99695 http://boris.unibe.ch/99695/ |
| Summary: | Alpine glaciers situated in mid- and low latitudes are valuable archives for paleoclimatology. They offer a continuous record of recent local climatic conditions in regions where the majority of humankind lived and still lives. For meaningful interpretation of an ice core from such an archive, accurate dating is essential. Usually, several complementary approaches are used to establish a depth-age relationship. The oldest part of the ice at the bottom of the ice core suffers annual layer thinning and is influenced by small-scale bedrock geometry, which limits the use of annual layer counting or the assignment of reference horizons for dating. Nuclear dating techniques overcome this restriction since they do not rely on the preservation of a resolvable stratigraphy by using the continuous record of the respective radioisotope. Radiocarbon is especially powerful for dating alpine glaciers because its half-life of 5730 years suitably allows it to cover the typical age range of these archives. Most important, ... |
|---|