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The pieces of wood recovered by the miners were examined and photographed, as too was the leaf imprint, but access to the ventilation shaft was not possible, nor were samples of the enclosing basalt available, having long been dumped with all the other rubble and waste rock.However, an exploratory hole had been drilled close to where the shaft was eventually dug.
magazine has been continuously published since 1978, we are publishing some of the articles from the archives for historical interest, such as this.
For teaching and sharing purposes, readers are advised to supplement these historic articles with more up-to-date ones suggested in the Related Articles and Further Reading below. At top, is fossil wood in basalt that includes—from left to right—basalt, wood and siltstone.
After visiting the mine site, nearby outcrops of the same basalt flows were investigated and sampled.
This was to make sure we at least had some samples of the basalt, just in case permission to have the drill core wasn’t forthcoming.
The next image (below left) is of charred fossil wood; and beside that is intact fossil wood (Note biro gives size perspective).