Project updates

Project updates

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For more information about this project please go to: www.weathering78n.org

Solid samples

2013Posted by Ruth Vingerhagen Feb 12, 2016 12:58
The solid samples haven't been neglected either. All the solid samples (river sediments and moraine samples) have been dried. Part of the sample has been used to obtain a clay separate for each sample and the rest of the sample has been gound to a fine powder in preparation for chemical characterisation.

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Anion analysis

2013Posted by Ruth Vingerhagen Feb 12, 2016 12:57
6 November

Today was the turn of the anion concentrations in the water samples to be measured, this was done at the geography department at the University of Durham. Anions are measured by ion chromatography, the water samples pass through a column and beacuse each ion has a different size and charge the anions move at different speeds and get separated out. For each sample the result is a set of peaks and the concentrations are proportional to the area under each peak. Each sample takes abour half an hour to run but luckily there is an autosampler which takes 100 samples so it is just a case of loading everything up and letting the machine do the rest.

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Cation analysis

2013Posted by Ruth Vingerhagen Feb 12, 2016 12:56
10 October

Today I had a trip to the chemistry department at Edinburgh University to do the major cation analysis of the water samples. The anylsis was done by ICP-OES (inductively coupled plasma - optical emission spectrometry): each element emits a specific wavelength of light, and the intensity of that light is proportional to its concentration.

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New Job

2013Posted by Ruth Vingerhagen Feb 12, 2016 12:55
September

I (and my samples) have moved to the University of St. Andrews for a two year Marie-Curie postdoctoral fellowship. The project is essentially an extension of the work funded by the Swiss National Science Foundation that I started at NGU in Trondheim. Now I can begin analysing all the water samples!



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Samples returned

2013Posted by Ruth Vingerhagen Feb 12, 2016 12:52
February

The samples are back from Svalbard! There wasn't enough snow earlier in the winter to drive a snowmobile into Fardalen, so the samples had to wait until now to be collected. I was worried about them being in -20 degrees Celcius for a long time since the water samples could have frozen and burst their bottles, but this seems not to have happened. Many thanks to Spitsbergen Travel for collecting and sending my samples back to Trondheim!

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