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It is possible to compensate effectively for this fractionation by measuring samples relative to small standards of identical size. Deep Sea Research Part I: Oceanographic Research Papers, Vol. Small quantities of COC ratios of the resulting targets are affected by machine-induced isotopic fractionation, which appears directly related to the decrease in ion current generated by the smaller sample sizes.Ocean sediment C-14 data The Lamont-Doherty Earth Observatory of Columbia University has compiled 974 C-14 dates from 309 ocean sediments cores, covering the period from 40,000 years BP to the present worldwide. The USGS Bear Lake Project aims to create records of past climate change for the Bear Lake region,including changes in precipitation patterns during the last 10,000 years and how the size of Bear Lake has varied in the past, to assess the possibility of future flooding and drought.

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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol.

The NOSAMS sample preparation laboratory in the next millenium: Progress after the WOCE program. Installation of a 134-sample MC-SNICS ion source at NOSAMS and first results.

Deep Sea Research Part II: Topical Studies in Oceanography, Vol.

Chemical composition and cycling of dissolved organic matter in the Mid-Atlantic Bight.

Mollenhauer, Gesine Kienast, Markus Lamy, Frank Meggers, Helge Schneider, Ralph R.

An evaluation of14C age relationships between co-occurring foraminifera, alkenones, and total organic carbon in continental margin sediments.

Isotopic fractionation in recombinator based 14C AMS measurements: how can we live with it? Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol.

Bacterial incorporation of relict carbon in the hydrothermal environment of Guaymas Basin.

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol.

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