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Toweranna Adding More Allure to De Grey’s Mallina

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THE CONFERENCE CALLER: De Grey Mining (ASX: DEG) has reported “outstanding” intercepts from infill and extensional drilling at its Toweranna deposit, ahead of a presentation to the 2023 RIU Sydney Resources Round-up today. By Ngaire McDiarmid

Resource definition drilling results at Toweranna, the initial intrusion that led to De Grey’s large-scale Hemi discovery, included 2m at 64.2 grams per tonne gold, within 10m at 13.2g/t from 288m.

A highlight from drilling outside the existing resource was 41.5m at 4.7g/t gold from 12m.

Executive technical director Andy Beckwith said the results would be included in the definitive feasibility study underway, and the extensional results offered a longer-term new focus.

“That’s probably a structure on the margins of the intrusion,” he said.

“Now we want to try and track that around the deposit and along strike.”

Toweranna currently hosts a Mineral Resource of 525,000 ounces, part of the overall 10.6 million ounces at the Mallina project in WA’s north which De Grey is advancing towards production.

Mallina is expected to produce 540,000oz annually for the first 10 years, according to a 2022 prefeasibility study.

The PFS presented “compelling financial metrics” post-tax including undiscounted free cash flow of $4.2 billion, an internal rate of return of 41 per cent and a 1.8-year payback period.

The DFS is due mid-year.

Beckwith told Resources Roadhouse that test work showed Toweranna’s mineralisation could be optimised by ore sorting, which the company had been investigating “well before the Hemi discovery”.

He believed ore sorting could optimise the deposit – “it’s not needed to make it work” – and cited potential benefits, including reduced haulage, a higher-grade feed and improved financial metrics.

“The technology has leapt in the last five years and now, I think the benefits it can bring is going to be immense in the next 10 years,” he said.

 

De Grey Mining Continues Resource Definition and Extensional Drilling at Brolga

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THE DRILL SERGEANT: De Grey Mining (ASX: DEG) has carried out Resource definition drilling at the Brolga and other zones at the Hemi gold deposit as part of a DFS of the company’s Mallina gold project in Western Australia.

De Grey Mining conducted the drilling to increase the amount of JORC Indicated Resources within pit designs for inclusion in the Production Schedule and Reserve of the definitive feasibility study (DFS) it currently has underway.

The Brolga zone was identified in the scoping and prefeasibility studies as an early production source for the project.

Shallow new resource definition results include:

HEDD035
50 metres at 5 grams per tonne gold, including 21m at 7.5g/t gold from 37m; and

HMRC311
12m at 5.4g/t gold from 72m, including 3m at 17.6g/t gold from 72m.

Deeper new resource definition results include:

HERC603D
38.4m at 3g/t gold from 220.8m; and

HMRC299D
37m at 2.2g/t gold from 214.7.

De Grey explained the Resource definition drilling allows more of the Brolga Resource to be classified as JORC Indicated mineralisation thus increasing potential Reserve for the DFS while providing increased confidence in the project’s projected cashflow from early production sources.

“New resource definition drilling results at Brolga confirm the consistency of mineralisation throughout the deposit and enhance the Stage 1 starter pit,” De Grey Mining general manager exploration Phil Tornatora said in the company’s ASX announcement.

“We have seen high-grade results in shallow and deeper drilling.

“The deeper, high-grade results both extend mineralisation and continue to confirm the underground potential at the Hemi deposits.

“The new results will be incorporated in an updated resource estimate for the DFS currently in progress and scheduled for completion mid-2023.

“Resource definition drilling at the Hemi deposits is nearing completion.

“Exploration will now focus on exploration aimed at making new discoveries and increasing resources, in both the Hemi district and Regional areas of the Mallina gold project.”

 

 

TO READ THE FULL ANNOUNCEMENT: CLICK HERE

 

De Grey Mining Extends Strike and Depth at Diucon

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THE DRILL SERGEANT: De Grey Mining (ASX: DEG) maintained its RIU Explorers Conference pace by reporting the latest resource extension and infill drilling results from the Diucon deposit at the company’s Hemi gold discovery in Western Australia.

According to De Grey the new results at Diucon, which is located in the west of Hemi, have extended mineralisation by approximately 120 metres along strike and 400m down plunge to the west of the May 2022 mineral resource estimate (MRE).

Diamond drill hole HEDD136 intersected:
75 metres at 1.1 grams per tonne gold and 72.3m at 1.4g/t gold, including:
15.1m at 1.6g/t gold from 599m;
53.4m at 1.4g/t gold from 654.2m;
14.1m at 3.1g/t gold from 750m; and
12.6m at 2.8g/t gold from 779.7m.

Mineralisation intersected in HEDD136 remains open in all directions, including up-dip, and to the west toward the Antwerp target, from where De Grey has previously released encouraging results.

Mineralisation at Diucon has now been intersected for approximately 560m along strike, to a depth of approximately 900 vertical metres and remains open.

Mineralisation on some sections attains a width of 300m over multiple lodes.

“Wide-spaced drilling down plunge to the WSW of the current Diucon resource has demonstrated that the Diucon mineral system is open in this direction,” De Grey Mining general manager exploration Phil Tornatora said in the company’s ASX announcement.

“Drilling is still very widely spaced and significant intersections are being returned from holes such as HEDD136 and HEDD128. This work has strong potential to extend Diucon’s current 1.6 million ounces mineral resource.

“Higher grade zones, often showing visible gold in quartz continue to support the potential for underground mining below open pit depths.

“In addition to diamond holes to follow up deeper mineralisation, shallow RC drilling is planned west of Diucon to follow up significant results from aircore and RC drilling at Antwerp.”

 

TO READ THE FULL ANNOUNCEMENT: CLICK HERE

 

De Grey Mining Targeting Growth at Withnell South

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THE CONFERENCE CALLER: De Grey Mining (ASX: DEG) announced drilling results on the eve of the RIU Explorers Conference from the company’s 10.6 million ounce Mallina gold project in the Pilbara of Western Australia. By Ngaire McDiarmid

The results included drilling undertaken at the Withnell South target of 20 metres at 1.62 grams per tonne gold from 110m and 9m at 4.6g/t from 159m in MWRC0320.

“The beauty of these new results is that it’s a completely new series of lodes south of those old pits,” executive technical director Andy Beckwith told Resources Roadhouse on the sidelines of the RIU Explorers Conference .

“These results would potentially move it [Withnell] into a bigger pit and a bigger resource, hopefully.

“And the other thing it adds … that structure we’re seeing at Withnell South hasn’t been tested along the entire 10 kilometres yet [of strike known on the mining leases].

“So, time will tell, and lots of drilling.”

 

READ MORE HERE

 

All Indicators Point to a Big First Day at RIU Explorers 2023

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THE CONFERENCE CALLER: The competition for delegate attention is already heating up on the eve of the RIU Explorers Conference with presenting companies releasing eye catching announcements.

 

Alto Metals (ASX: AME) reported RC drilling at the historic high-grade Oroya Mine, located within the company’s 100 per cent-owned Sandstone gold project intersected high-grade gold mineralisation beyond the boundaries of historical workings.

The wide-spaced step out drilling confirmed Alto’s current geological model as it targets extensions of the Sandstone Main reef and unmined mineralisation to the north-west beyond the north end of the pit, along with extensions down dip to the west.

READ MORE HERE

 

Medallion Metals (ASX: MM8) reported further expansion of the JORC 2012 Mineral Resource Estimate (MRE) at the company’s Ravensthorpe gold project in Western Australia.

The expanded MRE at Ravensthorpe now totals 19.5 million tonnes at 2.1 grams per tonne gold and 0.3 per cent copper for 1.3 million ounces of gold and 59,000 tonnes of contained copper metal.

There are 790,000 ounces (61%) of the gold and 36,000 tonnes of the copper (60%) metal estimated in the her confidence Indicated category, the remainder is in Inferred.

READ MORE HERE

 

Azure Minerals (ASX: AZS) intersected lithium-bearing pegmatites while drilling diamond holes in late 2022, testing nickel targets on its Andover project in WA.

Azure drilled ANDD0199 to test a nickel target near the an airborne electromagnetic (VTEM) anomaly, which at a downhole depth of 313.9 metres returned a strong lithium intersection of 1.51 per cent lithium oxide (Li2O) over 7.2m, including an internal high-grade zone of 1.87 per cent Li2O over 3.1m.

Azure interpreted this result to be further evidence of the mineral endowment of Andover as a battery metals project hosting nickel, copper, cobalt and now lithium.

READ MORE HERE

 

Encounter Resources (ASX: ENR) declared confirmation of lithium and other critical minerals bearing LCT pegmatites at the Crawford target part of the company’s Junction lithium project in the Northern Territory.

“The first on-ground activities completed have identified a trend of lithium and critical minerals bearing LCT pegmatites,” Encounter Resources managing director Will Robinson said.

“Crawford is a new critical minerals occurrence in the North Arunta and is located approx. five kilometres east of Core Lithium’s Ringing Rocks prospect which further serves to highlight the potential of the broader Junction region.”

READ MORE HERE

 

Dreadnought Resources (ASX: DRE) announced an Exploration Target for the approx. 40kms strike of the Yin Ironstone Complex within the company’s 100 per cent-owned Mangaroon project, located in the Gascoyne Region of WA.

The Exploration Target follows Dreadnought’s recent expansion of the Yin Ironstone Complex to 43kms of strike, combined with extensive geological knowledge of the REE ironstones in the region has provided the foundation for the Exploration Target.

The Exploration Target covers over 40kms of the near surface ironstones at Yin and importantly, excludes the current Yin Resource, any mineralisation at depth (underground potential) and the C1-C7 carbonatites.

READ MORE HERE

 

Black Cat Syndicate (ASX: BC8) updated the JORC 2012 Mineral Resource at Paulsens Underground, part of the company’s 100 per cent-owned Paulsens Gold Operation in WA.

Black Cat has increased the total gold Resources at the Paulsens Gold Operation by 73 per cent to 401,000 ounces at 3.3g/t gold.

Total Measured and Indicated Resources increased 65 per cent to 163,000 ounces at 8g/t gold.

“To triple the underground Resource after only two months of drilling is a sensational start to our growth and mining ambitions at Paulsens,” Black Cat Syndicate managing director Gareth Solly said.

“We see huge upside in the near mine area as well as potential repeat targets and the greater region.”

READ MORE HERE

 

De Grey Mining (ASX: DEG) has identified a new structurally controlled gold zone at the Withnell gold deposit, within the company’s Mallina gold project in the Pilbara.

De Grey reported drilling results from Withnell South it said provides opportunity to increase shallow, open pit resources.

Multiple new lodes were defined over 800m of strike and 200m vertical depth remaining open to the east and at depth.

The company believes these demonstrate the potential to increase the resource base and future production from its existing, structurally hosted, regional deposits.

READ MORE HERE

 

Caspin Resources (ASX: CPN) reported on final drilling, rock chip and soil geochemistry results from recent programs at the company’s Mount Squires project in WA.

There recent activity identified a two kilometres long gold in soil anomaly on the Handpump Fault, known as the Regal prospect, which is the largest and strongest gold geochemical anomaly Caspin has defined at the project to date.

This is surrounded by several other smaller gold anomalies.

Further gold and molybdenum results were achieved from aircore drilling at the Duchess prospect where deeper RC drill testing is to be carried out in 2023.

READ MORE HERE

 

 

De Grey Mining Reports AC and RC Drilling Results From Antwerp Target

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THE DRILL SERGEANT: De Grey Mining (ASX: DEG) reported on recent exploration drilling activities within the Greater Hemi Corridor within the company’s 100 per cent-owned Mallina gold project in the Pilbara region of Western Australia.

De Grey Mining conducted AC and RC drilling along a North-East trending structural corridor from the Antwerp target in the South-West to the Mt Berghaus target in the North-East, referred to as the Greater Hemi Corridor.

This structural corridor represents a greater than 15km long by 10km wide trend that extends east and west of the main Hemi deposits.

Results from continued AC drilling along the Antwerp trend include:

HEAC920
2m at 261 grams per tonne gold from 36m;

HAC654
1m at 41.6g/t gold from 59m; and

HAC349
3m at 2.7g/t gold from 57m.

Results from first pass reverse circulation (RC) drilling at Antwerp include:

HMRC197
6m at 4.4g/t gold from 28m;

HMRC167
6m at 2.1g/t gold from 43m; and

HMRC198
25m at 1g/t gold from 78m.

“Recent aircore and RC drilling has identified new prospective altered intrusions, anomalous gold zones and areas of encouraging multi-element geochemistry within the 15km long by 10km wide Greater Hemi Corridor, east and west of the existing deposits at Hemi,” De Grey Mining technical director Andy Beckwith said in the company’s ASX announcement.

“The discovery and recent growth of the Diucon and Eagle deposits, below an area of relatively weak aircore geochemistry results, provides encouragement with these new results that further gold mineralisation will be discovered along the Greater Hemi Corridor as drilling progresses.

“Infill aircore and deeper RC drilling will be undertaken based on ranked priorities and completion of heritage surveys.

“RC drilling will recommence in the New Year at Antwerp, to the west of Diucon and Eagle, to better test this prospective trend.”

 

 

TO READ THE FULL ANNOUNCEMENT: CLICK HERE

 

Web: www.degreymining.com.au

 

 

De Grey Mining Hits Impressive Resource Definition Drilling Results at Brolga

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THE DRILL SERGEANT: De Grey Mining (ASX: DEG) reported resource infill drilling results from the Brolga zone within the company’s Hemi gold discovery near Port Hedland in Western Australia.

De Grey Mining is carrying out the drilling as part of a Prefeasibility Study (PFS) of the main Mallina gold project.

The Brolga zone was identified, along with Diucon and Falcon, in a Scoping Study De Grey completed in 2021 as one of the early proposed production sources for the project.

The company explained the Resource definition drilling allows more of the Brolga resource to be classified as JORC Indicated mineralisation.

New resource definition results include:

HEDD218
193 metres at 1.7 grams per tonne gold from 40m;

HMRC054
123m at 1.9g/t gold from 33m;

HEDD302
140.2m at 1.3g/t gold from 35.7m;

HMRC055
136m at 1.2 g/t gold from 38m;

HMRC065
128m at 1.2g/t gold from 94m; and

HMRC138
90m at 1.1g/t gold from 106m.

“These new resource definition drilling results at Brolga, including 193 metres at 1.7 grams per tonne gold in diamond drill hole HEDD218, successfully demonstrate the continuity of mineralisation within the proposed Brolga Stage 1 starter pit and reduce project risk associated with early production,” De Grey Mining general manager exploration Phil Tornatora said in the company’s ASX announcement.

“Resource extension drilling to the southwest of the proposed Brolga starter pit is in progress.

“Exploration drilling continues across both Greater Hemi and Regional areas.

“Resource definition drilling is nearing completion and rigs will then be targeting further resource extensional and discovery drilling within the Greater Hemi region.”

 

 

 

Email: admin@degreymining.com.au

 

Web: www.degreymining.com.au

 

 

De Grey Mining Wins Craig Oliver Award and Reports New Results from Diucon Deposit at Hemi

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THE CONFERENCE CALLER: De Grey Mining (ASX: DEG) enjoyed the opening morning of the 2022 RIU Explorers Conference by picking up the celebrated Craig Oliver Award.

The Craig Oliver Award is presented each year at the RIU Explorers Conference in memory of the former Sundance Resources director and major contributor to the mining industry and recognises the ASX resources sector’s best all-round achiever throughout the previous 12 months.

When accepting the award in front of a packed day one auditorium at The Esplanade Hotel in Fremantle, De Grey Mining general manager exploration Phil Tornatora said the De Grey story was one that perfectly suited an explorer’s conference.

“The Hemi discovery was made in a frontier area in the Pilbara not seen as a gold destination,” he said.

“Our philosophy has been a geologist’s main job is to find the ore body.

“You can’t find anything without drilling and never die wondering.

“My summary for Hemi is it’s big, it will get bigger and it will be a very big gold mine.”

De Grey had earlier released the latest resource definition and resource extension results from the Diucon deposit at the company’s Hemi gold project in Western Australia.

The drilling has demonstrated gold mineralisation at Diucon to have similar alteration and sulphide development as seen at the adjacent deposits of Aquila, Brolga, Crow, Falcon and Eagle.

Drilling at Diucon and Eagle has intersected broad zones of mineralised intrusive in resource definition and extensional drilling including late high-grade mineralisation associated with quartz-carbonate veining, sericite-albite alteration and visible gold.

New resource definition drilling results include:

HEDD064
148.6 metres at 2 grams per tonne gold from 92m, including 8.9m at 7.3g/t gold from 101m and 34.8m at 2.9g/t gold from 129.3m;

HEDD305
8m at 5g/t gold from 131m and 71.1m at 3.5g/t gold from 188m, including 38.1m at 6.2g/t Au from 221m;

HEDD307
64m at 3.7g/t gold from 259m;

HEDD107
152.5m at 2.3g/t gold from 53m, including 25m at 4.4g/t gold from 106m and 6.3m at 25.7g/t gold from 135.4m; and

HEDD108
104m at 1.2g/t gold from 151.8m, including 33.2m at 2.3g/t gold from 151.8m.

New extensional drilling results include:

HERC775D
128.9m at 1.5g/t gold from 340m, including 26.3m at 2.3g/t gold from 341m and 43.9m at 2.2g/t gold from 374.1m and 9m at 2.4g/t gold from 441m.

“The resource definition results at Diucon have continued to intersect broad deposits of mineralisation including high grade intervals near surface,” Tornatora said in the company’s ASX announcement.

“[These] and other recent intersections are expected to have a positive impact on the Diucon resource grade and PFS mine schedule.

“The new extensional result at Diucon in HERC775D…including higher grade intervals is located approximately 100 metres beneath the Scoping Study open pit design.

“New pit shell optimisations will be conducted in the PFS aiming to increase gold production from the Diucon pit.

“Diamond drilling at Hemi will pivot to resource extension and discovery drilling after the March quarter and these new results at Diucon provide encouragement.

“Exploration with aircore and RC drilling continues to be conducted in the Greater Hemi region outside the Hemi footprint seeking new near surface gold bearing intrusions.”

 

TO READ THE FULL ANNOUNCEMENT: CLICK HERE

 

Email: admin@degreymining.com.au

 

Web: www.degreymining.com.au

 

 

De Grey Mining Drills Near Surface High-Grade Depth Extensions at Falcon

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THE DRILL SERGEANT: De Grey Mining (ASX: DEG) reported its latest gold hits, this time emanating from resource definition and extensional drilling on the Falcon deposit at the company’s Hemi gold discovery.

De Grey Mining declared the gold mineralisation at Falcon shows similar alteration and sulphide development that has been seen at the adjacent deposits of Aquila, Brolga, Crow, Diucon and Eagle.

The mineralised intrusion at Falcon has now been intersected to approximately 1km along strike and 600 metres below surface with mineralisation remaining open at depth and to the south.

Resource definition (infill) drilling intersected strong mineralisation within the scoping study pit design. New results include:

HERC725
28 metres at 8.8 grams per tonne gold from 39m, including 3m at 66.5g/t gold from 46m;

HMRC253
108m at 1.3g/t gold from 192m; and

HERC585D
101.8m at 1g/t gold from 166m.

New extensional results beneath the scoping study pit design include:

HEDD050
52m at 1.2g/t gold from 404m; and

HEDD051
43.8m at 1g/t gold from 474.2m.

“Resource definition and extensional drilling at Falcon are respectively increasing the confidence level of the resource and extending mineralisation below the scoping study open pit design,” De Grey Mining managing Director Glenn Jardine said in the company’s ASX announcement.

“Resource definition drilling is being conducted at Falcon and other zones at Hemi to increase the proportion of JORC Indicated mineralisation.

“Extensional drilling has confirmed that mineralisation remains open at depth and along strike to the south of Falcon.

“Drilling has recently been weighted to resource definition drilling to maximise the production target for the PFS.”

 

TO READ THE FULL ANNOUNCEMENT: CLICK HERE

 

Email: admin@degreymining.com.au

 

Web: www.degreymining.com.au

 

De Grey Mining Drills Energising Results at Diucon

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THE DRILL SERGEANT: De Grey Mining (ASX: DEG) reported exploration results from the Diucon deposit at the company’s Hemi gold project in Western Australia.

Diucon is located immediately to the west of Crow and presents a potential geological link between the Crow and Antwerp intrusions.

De Grey said the gold mineralisation at Diucon shows similar alteration and sulphide development as seen at the adjacent Aquila, Brolga, Crow, Falcon and Eagle deposits.

Extensional Results

Section 28720E

HERC442D
173.7 metres at 1.5 grams per tonne gold from 271.3m; 80m below the current resource

HERC851D
99m at 1.1g/t gold from 256m and 173m at 1.6g/t gold from 366m; 160m below the current resource

Section 28880E

HERC460D
108.4m at 0.8g/t gold from 280.72m. 80m below the current resource

Infill Results

Section 28720E

HERC441D
58.7m at 2g/t gold from 224m; (partially previously reported)

Section 28800E

HERC476D
88m at 1.9g/t gold from 256m; and

HERC458D
87.0m at 1g/t gold from 180m and 42m at 4.2g/t gold from 278m.

“The new drilling results at Diucon provide clear evidence that increases to the current Hemi resource can be expected with further drilling,” De Grey Mining managing director Glenn Jardine said in the company’s ASX announcement.

“The higher grades zones within these broad gold zones are also encouraging, as we continue to extend mineralisation to the west and conduct closer spaced drilling within the existing resource footprint.

“The mineralised intrusion on Section 28720E widens at depth.
“Step out drill hole HERC889D is currently in progress, targeting a further 160 metres beneath HERC851D.

“This well mineralised section remains entirely open to the west and depth.

“The mineralised intrusion at Diucon was intersected in RC and diamond drilling beneath unmineralised sediments previously intersected in shallow aircore drilling.

“This aspect provides encouragement for discovering additional mineralised intrusions around Hemi in a similar setting.”

 

TO READ THE FULL ANNOUNCEMENT: CLICK HERE

 

Email: admin@degreymining.com.au

 

Web: www.degreymining.com.au