a note for my future self: Report on laser maps

[kareina]

Since I will be taking a month off to work a short-term museum archive job, I decided that it would be wise to devote a little time to creating a summary of the laser accessory composition maps I have been making, so that when I pick this back up I will be able to see at a glance what has and has not been done.

 

As of today I have run the laser to produce a total of 23 maps, from ten quarries. Nine of these have had sufficient data processing as to be able to look at the results as a map, but I have not yet sat down to interpret the results or decide on a consistent way to present the results.

 

The below image presents this information graphically, with each quarry marked on a map of Norway and Sweden, and photos of either the pre-ablation crystal (if the data hasn’t been processed), or a preliminary composition map (if it has), with lines showing which image comes from which quarry.  

 

The nine quarries for which I have samples but have not yet run maps are circled in red.  I would love to get at least one sample from each of those accomplished before I start that job, in just over two weeks. 

 

As you can see, there are sometimes duplicate maps from the same sample, and sometimes from more than one sample from the same quarry (and sometimes both). This was done at the suggestion of one of my colleagues here, who pointed out that if one is going to try to make generalisations about a specific quarry it would be wise to check more than one sample and more than one place on a sample to demonstrate that the results are consistent for a given sample and a given location.