SGQ st george mining limited

2.70%

3.8¢

A Case of “Let’s leave it alone for a while”, page-9

First 9 Last

Share
Profile

Follow
mulac1

1,587 Posts.

318

13/11/15

21:37

Post #: 16393742
Share

Originally posted by helmenesh ↑

Hello mulac1,

Thank you for your question re interpretation of the strength of the Electromagnetic anomaly (61000 siemens at Desert Dragon) First let me say that I am not a geophysisit and the true interpretation of what is happening there should be left to the very competent geophysics team of Newexco. The quick answer to your question is No! Unless the downhole EM equipment has some very sophisticated instrumentation in recent development of tools to be able to discriminate between the various sulphides that cause the anomaly. I am not aware that there is such sophisticated equipment that has been developed of late.

You see, The sulphides that constitute the sulphide mineral suite in the ultramafic environments consist dominantly of Pyrrhotite, (an iron sulphide) Pentlandite ( a nickel sulphide and Chalcopyrite ( a copper sulphide) - These can be in disseminated form (salt and pepper style distribution or as blebs and pellets) in the hosting ultramafic rocks. During the deposition of the ultramafics pools and eddies form in the magma flowing tongues and accumulations or pools of the suphides form in pockets or along contacts with the hosting sediments which ultimately consolidate to form the massive deposits which principally comprise all three minerals described above, and in the perfect set up other highly sought after minerals such as Platinum group metals, cobalt and lesser sulphides also consolidate from the soup as accessory minerals.

Here is the rub however, Pyrrhotite yields the highest readings of all the sulphides in question sometimes by a factor of 4 or 5 or more. ( I don't propose to list a table of comparative EM signatures as there are many variables) Sometimes when drilled, such anomalies will turn out to be principally of pyrrhotite with no or very little economic metals. That however is rare and I am not suggesting that that could be the case at Desert Dragon. But, one must be aware that the economic mineral grade in a massive sulphide suite can be poor compared to the iron sulphides comprising the system. We have evidence of significant disseminated mineralisation in the system to suggest that some of these massive plums could contain an economic resource. One such plum may be the off hole body that yielded the 61000 siemens anomaly.Let us be optimistic on that.

Depending on thee crystallographic structure of Pyrrhotite, it can be minus magnetic properties. In such an instance, using magnetic techniques, in conjunction with EM techniques, it may be possible to quantify a proportion of other sulphides in relation to Pyrrhotite thereby helping in the interpretation prior to drilling. There may be other factors that could influence the results, particularly if the hosting sediments and the ultramafics have magnetic components, and invariably magnetic iron is always present in these environments. I'm sure the Newexco boys have considered that.

mulac1 I hope I have not confused the situation and as I say I am not a geophysicist and may be I know a little to be dangerous.

Hang in for the technical ride anyway, it will make for an interesting story.
Cheers,

helmenesh

Expand

Hi Helmenesh, and thank you for your answer.

You have enlightened me and I am sure many others.

Your explanation had me rereading several times. I do appreciate your measured and consise overview of sulphide suites and especially the possibility of magnetic iron presence.

Cheers and I agree the technical ride will be a very interesting story.

Thanks again.

cheers
Mulac1

SGQ Price at posting: 9.2¢ Sentiment: Hold Disclosure: Held
1 Upvote

0 Great analysis

Reply

Top Stories

I88

Infini Resources onto Phase 2 at Portland Creek after spotting 'widespread uranium'

OSL

OncoSil wraps up recruitment for key pancreatic cancer trial

NMG

New Murchison Gold blasts off at Crown Prince as 'better than expected' results return

KGD

Kula picks up unexplored niobium play in Malawi, with surface samples logged

Trump chides Powell as Goldman call for calm. The RBA must be nervous

HotCopper Highlights, Week 27: G8 scalped, Domino’s drops the box, Gemlife brief hype & more

DMP

Is Domino's a steal after -25% plunge?

Listen: HotCopper Wire Podcast 016 – FY25 ended up not so bad... but Trump unpause is coming

THL

Tourism Holdings says Liberation Day tariffs smashed US RV demand

Week 27 Wrap: 40% China tariffs?; ASX +10% FY25; US Amazon price spike

First 9 Last

Add to My Watchlist

What is My Watchlist?

A personalised tool to help users track selected stocks. Delivering real-time notifications on price updates, announcements, and performance stats on each to help make informed investment decisions.

(20min delay)
Last 3.8¢		Change 0.001(2.70%)		Mkt cap ! $101.5M

Open	High	Low	Value	Volume
3.8¢	3.9¢	3.7¢	$319.5K	8.334M

Buyers (Bids)

No.	Vol.	Price($)
2	221050	3.8¢

Sellers (Offers)

Price($)	Vol.	No.
3.9¢	2228205	10

View Market Depth

No.	Vol.	Price($)
1	196050	0.038
6	10468002	0.037
4	2531200	0.036
9	2377337	0.035
13	1490555	0.034

Price($)	Vol.	No.
0.039	795205	6
0.040	3508914	12
0.041	514780	4
0.042	713570	6
0.043	2976684	6

Last trade - 16.12pm 04/07/2025 (20 minute delay)

SGQ (ASX) Chart

A Case of “Let’s leave it alone for a while”, page-9

Infini Resources onto Phase 2 at Portland Creek after spotting 'widespread uranium'

OncoSil wraps up recruitment for key pancreatic cancer trial

New Murchison Gold blasts off at Crown Prince as 'better than expected' results return

Kula picks up unexplored niobium play in Malawi, with surface samples logged

Trump chides Powell as Goldman call for calm. The RBA must be nervous

HotCopper Highlights, Week 27: G8 scalped, Domino’s drops the box, Gemlife brief hype & more

Is Domino's a steal after -25% plunge?

Listen: HotCopper Wire Podcast 016 – FY25 ended up not so bad... but Trump unpause is coming

Tourism Holdings says Liberation Day tariffs smashed US RV demand

Week 27 Wrap: 40% China tariffs?; ASX +10% FY25; US Amazon price spike

Featured News

Buyers (Bids)

Sellers (Offers)

Featured News

A Case of “Let’s leave it alone for a while”, page-9

Top Stories

Infini Resources onto Phase 2 at Portland Creek after spotting 'widespread uranium'

OncoSil wraps up recruitment for key pancreatic cancer trial

New Murchison Gold blasts off at Crown Prince as 'better than expected' results return

Kula picks up unexplored niobium play in Malawi, with surface samples logged

Trump chides Powell as Goldman call for calm. The RBA must be nervous

HotCopper Highlights, Week 27: G8 scalped, Domino’s drops the box, Gemlife brief hype & more

Is Domino's a steal after -25% plunge?

Listen: HotCopper Wire Podcast 016 – FY25 ended up not so bad... but Trump unpause is coming

Tourism Holdings says Liberation Day tariffs smashed US RV demand

Week 27 Wrap: 40% China tariffs?; ASX +10% FY25; US Amazon price spike

Featured News

Buyers (Bids)

Sellers (Offers)

Featured News