Hi Jim. The hollow tubed auger is actually a neat design. A core sample-tube is set inside the drill casing, at different "protrusion" sets, depending on anticipated bore material hardness. The inner core pipe can be set just ahead, just even with, or just behind the outer boring drilltube that screws into the bedrock (it has a spiral shelf-welding up its outside). Apparently in this most recent program, the drill went just as directed, coring target material and reaching depths as targeted. -The sampling program yielded nice, clean core. The technique was surprisingly efficient (except, of course, for the extra-hard 'unit' encountered).
And I agree that this is getting pretty close to hearing of "kimberlite encountered" without the actual words on a platter. I really think that astute investors will sit up when reading this release.
Violetta, you commented earlier on the hardness of kimberlite-- I thought a bit more about it, and will respond by commenting that in AB (vs. the NWT), kimberlite is the harder of the bedrocks (vis-a-vis the surrounding sandstones), hence the odd incidence of outcropping kimberlite, meaning it is the slower to erode (as you mentioned).
This would make it the, relatively, harder material... -just a thought.
Looking V.positive,
-j
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