Tidying the dig face and removing any available loose spoil was priority so that we had a clean canvas to work with and that we could see where the boulders started etc.
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| A shot I took using my light showing the air movement at the top of the dig |
After 5 - 6 skips of loose spoil we set about with the drills in an attempt to again lower the floor to allow for more working space, this was met with reasonable success and a large percentage of the problem 'icebeg' boulder was extracted, however some of it still remains and the general consensus is that we should leave it alone as we can sit (if a little cramped) at the dig face, which should allow us to work on the calcite banding more effectively.
Post dig debrief is that it is strongly felt that an experimental cord placement and detonation is needed to try and get a feel for what this may achieve, we are unsure due to the amount of calcite and loose soil in between and are concerned that these soft materials may just absorb the blast with little results - Time will tell.
Dust masks were used by those drilling and within the immediate vicinity of the dig face due to excess dust, these worked well although they are very uncomfortable and hot.
Total time underground - 3.5 hours
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