1. Accelerator mass spectrometry at Arizona: geochronology of the climatic record and connections with the ocean.
- Author
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Jull AJ, Burr GS, Beck JW, Donahue DJ, Biddulph D, Hatheway AL, Lange TE, and McHargue LR
- Subjects
- Archaeology, Arizona, Beryllium analysis, Chronology as Topic, Fires, Geologic Sediments chemistry, Geological Phenomena, Geology, Pacific Ocean, Periodicity, Radioisotopes analysis, Carbon Radioisotopes analysis, Climate, Mass Spectrometry instrumentation, Particle Accelerators
- Abstract
There are many diverse uses of accelerator mass spectrometry (AMS). 14C studies at our laboratory include much research related to paleoclimate, with 14C as a tracer of past changes in environmental conditions as observed in corals, marine sediments, and many terrestrial records. Terrestrial records can also show the influence of oceanic oscillations, whether they are short term, such as ENSO (El Niño/Southern Oscillation), or on the millennial time scale. In tracer applications, we have developed the use of 129I as well as 14C as tracers for nuclear pollution studies around radioactive waste dump sites, in collaboration with IAEA. We discuss some applications carried out in Tucson, AZ, for several of these fields and hope to give some idea of the breadth of these studies.
- Published
- 2002
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