Cosmogenic dating glaciers
Index
- Can we use cosmogenic-nuclide exposure dating to date glaciers?
- What is Cosmogenic Nuclide dating used for?
- How does the Phillips model predict the age distribution of rocks?
- Can we use cosmogenic-nuclide exposure dating to date glaciers?
- How is exposure dating used in the field of Chemistry?
- How does the Phillips model predict the age distribution of rocks?
- How to use radiometric dating to determine the age of rocks?
- How do scientists date rocks and fossils?
- How is the relative age of magmatic and metamorphic rocks determined?
Can we use cosmogenic-nuclide exposure dating to date glaciers?
By now, hundreds of studies have used cosmogenic-nuclide exposure dating to date glacial deposits, and in fact it is rare to find a study of glacial geology or glacier chronology, or any paleoclimate synthesis that makes use of such studies, that does not involve exposure dating.
What is Cosmogenic Nuclide dating used for?
Cosmogenic nuclide dating can be used to determine rates of ice-sheet thinning and recession, the ages of moraines, and the age of glacially eroded bedrock surfaces. For glaciation, the most common application of cosmogenic nuclide dating is to date the exposure age of glacially transported rocks.
How does the Phillips model predict the age distribution of rocks?
The model correctly predicts both phenomena observed in the Phillips study: the widening of apparent exposure-age distributions as new boulders are exposed and old ones weathered, and the eventual age inversion in the very oldest moraines where no original boulders survive.
Can we use cosmogenic-nuclide exposure dating to date glaciers?
By now, hundreds of studies have used cosmogenic-nuclide exposure dating to date glacial deposits, and in fact it is rare to find a study of glacial geology or glacier chronology, or any paleoclimate synthesis that makes use of such studies, that does not involve exposure dating.
How is exposure dating used in the field of Chemistry?
The key ingredients for wide application of exposure dating were the development of measurement techniques capable of measuring low enough concentrations of cosmic-ray-produced nuclides, and the ability to estimate nuclide production rates at any location worldwide.
How does the Phillips model predict the age distribution of rocks?
The model correctly predicts both phenomena observed in the Phillips study: the widening of apparent exposure-age distributions as new boulders are exposed and old ones weathered, and the eventual age inversion in the very oldest moraines where no original boulders survive.
