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Spectra are analysed for different environmental radioisotopes, including 210Pb, 226Ra, 137Cs, 134Cs, 241Am, 7Be and 40K.

Roughly fifty years ago, a small group of scientists from Belgium and the United States, trying to better constrain ice sheet accumulation rates, attempted to apply what was then know about environmental lead as a potential geochronometer.

The department houses low-background well-type gamma spectrometers for use in measuring the radioactivity of sediments and soils.

The main application for these gamma spectrometers is for the radiometric dating of lake sediments via the measurement of 210Pb, 137Cs and 241Am.

We could decide that the CRS was the best applicable model.

We present differential bathymetry and sediment core data from the Japan Trench, sampled after the 2011 Tohoku Oki (offshore Japan) earthquake to document that.

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In environments where the sediments can be considered to be constant, a Constant Initial Concentration (CIC) model is applied.

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A dataset of historical sediment Carbon and Nitrogen isotope measurements from lake cores (n=95) spanning the range of lake types and catchments found across the UK. Nitrogen and Carbon isotope data from 210Pb dated lake sediment cores in the United Kingdom. https://doi.org/10.5285/4b53b1d7-f290-4b47-97e9-9f9ec79f3003 Lineage The Environmental Change Research Centre (ECRC), University College London core archive has been used to compile a UK wide, time slice dataset of lake sediment Nitrogen and Carbon and stable isotope measurements.

These data have been obtained from the Environmental Change Research Centre (ECRC) lake sediment core archive with well-resolved time intervals (1850, 1900, 1980 and present) determined by radiometric dating (210Pb; 137Cs). The sediment archive has grown from lake coring projects undertaken by the department and employees of ENSIS Ltd, the environmental consultancy based within the ECRC.

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