Sorry to "cut you off". Not intended that way, just an acknowledgement of the repeated discussion on grades in C3 infill. The DRE crew have some (Heaps) of experience and I can't imagine they would proceed with an expensive grid drill program at C5 extension if there wasn't some potential for C3 and possible discovery(ies) along the long axis of the interpreted carbonatites. Having said that DRE have prioritised the drilling in ways which have surprised me.
Two RC rigs and a diamond rig with the latter operating independently.
holes 90 to 106 at C6
Then 107-111 as a short program on C5 extension.
Why these 5 holes?
One possibility was for proof of concept that the Carbonatite did extend to the SE into the area of interpreted Carb.
If this was the case (big if but IMO possible) then they were not targeting anything specific along the axis of the magnetic anomaly. To date there has been limited targeted drilling on the carbonatites with grid patterns at a nominal 160x160 for first pass.
Subsequent to the first 5 holes a line of sites was prepared along the axis and then a grid pattern across "strike" (whatever that means for pipe like structures of unknown dimensions)
Putting Sentinel locations very roughly on DRE planned drilling shows this sequence graphically. [Minor errors in transposing sentinel to GE/QGis]
Holes 112-128 C3 infill
C6 holes 129-137 plus "Ironstone" numbering sequence 249-251-253.
[The drilling sequence for 129-37 is a bit unusual with odd and even numbers split suggesting there may have been two rigs - would be unusual on the same drill fence. ]
An alternating sequence also shows up with the Ironstone drilling as shown by the north end C6 . Both RC rigs focusing on ironstones.?
Prenumbered holes or a lot of unnecessary rig moves for 129-37 or two rigs or....
No other Carbonatite holes announced to date and nothing obvious on Sentinel in the C1-7 area other than site prep to May.
The Carb rig appears to have been switched to the Ironstone program.
One rig went to the far south end of Yin with hole numbers alternating with the rig at "big bend" for awhile.
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Reading the replies in Economic Geology is like some of the HC exchanges. Can get quite heated at times but ultimately helps sort out issues even it takes decades to stop disagreeing.
I hadn't considered the geometries when interpreting a contact "along strike". Assays and Pxrf in hole 107 were one reason I put a contact just west of the drill holes. It is, as
@2ic said, A possibility. Just not one that was too well thought out.
At Uni one task given to us was to try and sort out how to connect various intersections. There are commonly many possibilities, more with the more geology you know....or spend time trying to work things out. Ultimately only one "correct' solution to a real world conundrum that was frozen in place millions of years ago..
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Sentinel to July 14.
Y2
Infill to 40x40 has been prepared and perhaps initial drilling begun.
Source Time lapse image.
The SE fences have both been completed - no infill?
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Ongoing drilling at Yin with the main section of infill probably nearly complete.
Still to do - Yin S infill, Y4, 5 and the holes immediately south of Yin Main (begun?).
Rough summary. Take resource categories with a pinch of salt. Hole density main reason for them.
green stars at Y2 new sites..
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Star of Mangaroon.
Drilling as per
@Polonium210 at the minesite.
To the north there is another large 'disturbance' Alluvial scraping?
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Finally for weekend musings
Put this diagram into Qgis and extracted the conductors to give a rough idea of how they sit relative to the Money intrusive.
Colour coded conductors Blue 2022 and Orange 2023 as with the above diagram. DYOR as there is some spatial discrepancy apparent and the conductors are tricky to interpret with any accuracy.
North end Bookathana
Majority of conductors parallel the margins of the Money intrusions where obvious. The Northern zone of 2023 may do the same but there is some cover to the south of Hole N12.
From the announcement
The conductor location matches visuals on GE image in the area annotated.
Southern section
High range conductors are weaker than Booka Nth. Some are formational responses oblique to Money Intrusion.
Lumpy's find has good surface assays but is downgraded by the lack of any EM.
[The green star marked Alluvial Au?? points to a large area of features including some possible trenches or pits some 600m to the NW].
(20min delay)