Calibration of High Frequency Pollen Sequences and Tree-Ring Records

by P. E. Wigand, Desert Research Inst, United States,
M. R. Rose, Desert Research Inst, United States,

Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1990


Two radiocarbon dated paleoenvironmental records from southern Nevada are being examined with the possibility of correlating high-frequency pollen samples with nearby long-term tree-ring sequences. Although visual correspondence seems close, variable deposition rates introduced problems with the number of years between and the number of years included within pollen samples. Better radiocarbon dating control of the pollen cores, as well as closer interval sampling would alleviate some of these problems. The method holds the promise of using pollen sequences to extend the record of temperature and precipitation beyond the present range of tree-rings.

Subject Headings: Calibration | Waste sites | Light rail transit | Radioactive wastes | Precipitation | Temperature effects | Trees | Waste disposal | Nevada | United States

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