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Geological Map Project

10/4/2016

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Back in September of last year I was approached by members of the Yorkshire Philosophical Society (YPS) who were working with the York Museums Trust on a joint initiative to install a walk-on geological map in Museum Gardens, York. The map represented the Yorkshire section of William Smith's 1815 map (the first ever geological map of a whole country) in the form of a visually-stunning 4m x 4m pebble mosaic. As part on the project they were looking for an innovative way to display the different types of clays involved. 
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William Smith & Geological Map of Northern England
After some initial discussions, it was decided that I would make a map of Yorkshire, showing the north-south central strip of Triassic clay (Red Marl).

I prepared samples of the clay and produced several test tiles. Interestingly, although the clay was a dark earthy buff in its raw state, it fired red.


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Over the following weeks I produced several versions of the clay map, showing different geological features. (Differences in colour due to drying and lighting...)
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​The bisque firing was successful, however several attempts at the glaze firing proved more problematic...... although the clay was lovely to work with, it wouldn't have been my first choice for this type and scale of project. The shrinkage on the clay was magnified by the large size of the map and its requirement to be fired in one piece.

However, after discussions with the YPS team it was decided that the "mosaic" quality of the piece would fit in well with the overall theme of the pebble mosaic map. 

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Mosaic Pebble Map in the Museum Gardens, York
A second sample of clay (boulder clay) provided a further challenge as it contained many stones of different sizes and types. To prepare this clay it had to be dispersed in water, and then the stones sieved out. I was then able to create a large shallow bowl from the sieved clay, which has fired to a rich chocolate brown. The sieved residue, an interesting range of stones, will be set in resin in the bowl when it is displayed along with the map in the Museum Gardens in York.
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Unfired Boulder Clay Bowl
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After bisque firing
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Completed boulder clay bowl with clear glaze
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    Lee Steele

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Lee Steele
The Potter Man Studio
Unit 1A, Holme Industrial Estate
Skiff Lane,
Holme-on-Spalding Moor
East Yorkshire,
YO43 4BB

​Tel: 01430 861176
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