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Power function for interpolating dates in recent sediment
Authors:Ian D Campbell
Institution:(1) Canadian Forest Service, 5320-122 St., T6H 3S5 Edmonton, Alberta, Canada
Abstract:Many paleolimnological studies deal with short cores; the upper 20 to 30 centimeters of lake sediment are often poorly compacted and it may be perilous to interpolate dates using straight lines. A power function (AGE=a+b*DEPTHc) provides a good approach for interpolating dates where only a few dated horizons are available in a core. This may be particularly useful where multiple short cores are taken from a single site, and dated by correlation of key horizons with a master core which is 210Pb dated. This approach assumes a constant rate of dry sediment deposition.
Keywords:dating  power function  correlation  interpolation  deposition rate  sediment compaction
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