I have taken a preliminary look at San Antonio. Firstly because there appears to be disturbances on Sentinel Satellite and secondly because I didn't have HCH drill holes in my data base. The latter leads down the trail of a lot of information plus the realisation that not much of that is in the public domain.
I am fairly confident the southern disturbances are 2022 drill sites. However, the rest could be part of active mine workings. If some are drill holes HCH is reusing 2018 drill pads for some which would be OK for infill but not necessarily extensional work.
Large red circles = site disturbance.
Orange Google Earth pads visible 2021. The two just north of SA main were drilled in 2018 and the ones to the SE appear on sentinel at the same time as HCH drilling but there are no reports of drilling there. Further north a couple of GE visible pads.
2018 drill plan
Reported drillholes
| Hole_ID | Azim. | Dip | Hole
Depth | From | (m) | Cu | Au | SOURCE |
|---|
| 1 | SAP0001 | 290 | -60 | 150 | 61 | 19 | 2.0 | 0.0 | 18/7/2018 ann |
|---|
| 2 | SAP0002 | 250 | -60 | 136 | 62 | 2 | 0.5 | 0.0 | 18/7/2018 ann |
|---|
| 3 | SAP0003 | 270 | -75 | 132 | 76 | 6 | 1.2 | 0.0 | 18/7/2018 ann |
|---|
| 4 | SAP0004 | 360 | -75 | 162 | 83 | 3 | 1.0 | 0.0 | 18/7/2018 ann |
|---|
| 5 | SAP0005 | 320 | -60 | 216 | 139 | 4 | 2.0 | 0.0 | 18/7/2018 ann |
|---|
| 6 | SAP0006 | 270 | -60 | 60 | 5 | 1 | 1.1 | 0.1 | 18/7/2018 ann |
|---|
| 7 | SAP0011 | 270 | -60 | 138 | 108 | 2 | 1.0 | 0.0 | 18/7/2018 ann |
|---|
| 8 | SAP0012 | 270 | -60 | 90 | 17 | 13 | 1.3 | 0.0 | 18/7/2018 ann |
|---|
| 9 | SAP0016 | 250 | -60 | 126 | 47 | 2 | 0.7 | 1.5 | 6/8/18 ANN |
|---|
| 10 | SAP0017 | 280 | -65 | 100 | 42 | 4 | 0.9 | 1.2 | 6/8/18 ANN |
|---|
| 11 | SAP0018 | 295 | -60 | 252 | 12 | 5 | 0.9 | 0.0 | 18/7/2018 ann |
|---|
| 12 | SAP0019 | 270 | -60 | 150 | 58 | 10 | 1.6 | 3.2 | 6/8/18 ANN |
|---|
| 13 | SAP0020 | 330 | -60 | 150 | 28 | 2 | 1.2 | 3.5 | 6/8/18 ANN |
|---|
| 14 | SAP0021 | 0 | -90 | 102 | 31 | 5 | 2.5 | 9.3 | 6/8/18 ANN |
|---|
| 15 | SAP0022 | 240 | -70 | 180 | 83 | 11 | 1.6 | 11.1 | 6/8/18 ANN |
|---|
| 16 | SAP0023 | 290 | -60 | 108 | 65 | 6 | 2.1 | 3.1 | 30/8/18 ANN |
|---|
| 17 | SAP0026 | 250 | -60 | 144 | 51 | 5 | 1.3 | 5.1 | 30/8/18 ANN |
|---|
| 18 | SAP0028 | 200 | -60 | 140 | 93 | 16 | 1.1 | 2.6 | 30/8/18 ANN |
|---|
| 19 | SAP0029 | 270 | -60 | 60 | 0 | 5 | 1.1 | 2.6 | 30/8/18 ANN |
|---|
| 20 | SAP0031 | 20 | -80 | 162 | 60 | 3 | 1.2 | 4.4 | 6/8/18 ANN |
|---|
| 21 | SAP0032 | 270 | -60 | 132 | 105 | 9 | 2.0 | 3.1 | 30/8/18 ANN |
|---|
| 22 | SAP0038 | 260 | -60 | 144 | 93 | 4 | 2.7 | 5.8 | 30/8/18 ANN |
|---|
The gaps in hole numbering are typical of reporting by HCH until recently. 16 holes with coordinates and assays not reported - unless I missed them which is quite possible.
Some 10 of these sites are probably shown on the above map with labels A-J (10 of the 16 perhaps)
A data dump of the sentinel sites and the reported 2018 holes shows the sentinel sites overlapping many of the older drilling.
Some basic, obvious?, geology interpreted. Lots more faulting.
Something that doesn't show up well of these plan views is the topography.
This oblique view gives some idea of the slopes involved.
The section above is simplified and could have more holes projected onto it.
Refer to original announcements as there are more assays for some of these holes
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Some comments
- Codelco drilled some holes that are available to HCH apparently. One deep intersection is shown on the 2018 plan. Hole 2018-18 was probably a near twin of the original hole but didn't intersect any grade (Reported anyway). The implication of the Codelco 20m@ 1% from 310m could be there are deeper lodes to be tested - depends on dip of any possible lode.
- That mineralisation is sub parallel to the slope could make for something like an open pit cutback with a relatively low strip ratio. If mineralisation goes deeper then more standard UG mining would probably be required.
- What if any is the relationship of mineralisation at Abundancia (Not HCH) to San Antonio.
- Recent Sentinel disturbances appear where HCH have already drilled multiple holes from individual pads. Puzzling if they are site prep or drilling in those instances.
- Cracking a code for mineralisation at SA may have implications along a structure that runs from SZ up to at least Valentina.
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A quick check of satellite imagery to June 2 suggested drilling completed at PC etc, Valentina and probably well underway at SA. Very speculative but if correct SZ is prepared and waiting for the regional RC rig.
At Cortadera
Two (3rd=artifact??) south flank sites appear to have been drilled in the last month. Large green open circles (Red - satellite interp sites)
Previous hole 80 site seems to have been revisited but I suspect this may be an artifact and not real.
Two other sites (23 & 24) to the SE of site 80 shows signs of being drilled.
If either of these have been drilled they are likely to be deep tests of Cuerpo 3.
23 is subtle.
Two diamond rigs? One for each of 23 & 24 makes some sense for time lapse and time required to drill 1500+-m holes. Just speculation.
May June time lapse
(20min delay)