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Mittwoch, 28.02.2024 17:00 von | Aufrufe: 18

ENTRÉE RESOURCES ANNOUNCES PARTIAL DRILL RESULTS FOR HUGO NORTH EXTENSION AND PROVIDES UPDATE ON UNDERGROUND DEVELOPMENT WORK

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PR Newswire

VANCOUVER, BC, Feb. 28, 2024 /PRNewswire/ - Entrée Resources Ltd. (TSX:ETG; OTCQB:ERLFF – the "Company" or "Entrée") is pleased to provide partial diamond drill hole ("DDH") results from the 2022 drilling program over the Hugo North Extension ("HNE") deposit on the Entrée/Oyu Tolgoi JV Property in Mongolia. The vast majority of the analytical results from the 2022 program are still pending from the laboratory and will be reported as soon as they become available from the Company's joint venture partner Oyu Tolgoi LLC ("OTLLC"). The Company Is also pleased to report that first underground development work on the Entrée/Oyu Tolgoi JV Property is scheduled to commence in H2 2024.

HIGHLIGHTS

  • DDH UGD583A: 274 metres ("m") grading 2.79% copper equivalent* ("CuEq").
  • DDH UGD586: 300 m grading 3.46% CuEq including, 144 m grading 4.12% CuEq.
  • 22 underground holes and 4 surface holes drilled during 2022 targeting Lift 1 and/or Lift 2, with most holes still pending analytical results.

*Copper equivalent is defined in Table 1, where full details on the drill hole assay intervals are also found.

Stephen Scott, Entrée's President and CEO said, "We are very pleased with these drill results from HNE, which are the first holes drilled into the HNE deposit since 2011. While the majority of the 2022 drill holes were designed to provide structural and geotechnical information to support the Lift 1 Panel 1 technical studies incorporated into the 2023 Oyu Tolgoi Feasibility Study as well as development by OTLLC, they also demonstrate the remarkable continuity of the significant copper and gold grades at HNE.  The drilling program increases the drill hole density at HNE and these holes will be incorporated into the next updated resource estimate. I am also very excited that we are approaching the important milestone of first physical development activity on the Entrée/Oyu Tolgoi JV Property. While the work planned to be completed in 2024 is entirely on support infrastructure outside of the orebody footprint, and it is still going to be some time before first concentrate production, it will certainly be a historical moment for the Company."

2022 DRILLING PROGRAM
The initial batches of underground diamond drill results have been received from the 2022 drilling program at the HNE deposit, with analytical results available for 6 of the 26 drill holes.  It is the Company's understanding that OTLLC's primary objectives for the 2022 drilling was for structural and geotechnical studies, prior to initiating the core sampling and assaying process and that all core has been cut and submitted to the laboratory for analysis.  The significant mineralized intervals received to date from the 2022 drilling are summarized in Table 1 and shown on Figure 1. 

Table 1: Drill Results from 2022 Drilling at HNE Deposit1

Drill Hole


ARIVA.DE Börsen-Geflüster

From (m)

To (m)

Length2 (m)

Au (ppm)

Cu (%)

Ag (ppm)

CuEq3 (%)

UGD582A

139

396

257

0.02

0.58

1.40

0.60

UGD583A

184

458

274

0.73

2.36

5.33

2.79

UGD584A

176

375

199

0.03

0.62

1.99

0.65

UGD586

122

300

178

0.96

2.90

6.20

3.46

including

144

288

144

1.07

3.50

7.21

4.12

UGD5904

no significant results






UGD6144

no significant results







1.

All of the analytical results shown above are only for the portions of the drill holes on the Entrée/Oyu Tolgoi JV Property.

2.

Approximate true widths are variable depending on the orientation of the drill hole and are estimated as the following percentages of the drilled widths: UGD 582A, 0%; UGD583A, 64%; UGD584A, 0%; UGD586, 67%.

3.

CuEq is calculated by the formula CuEq = Cu + ((Au * 35.7175) + (Ag * 0.5773)) / 67.9023, taking into account differentials between metallurgical performance and price for copper, gold and silver. Metal prices used are $3.08/lb Cu, $1,292.00/oz Au, $19.00/oz Ag and $10.00/lb Mo. Metallurgical recoveries used are 82% for copper, 73% for gold and 78% for silver.

4.

Drill holes UGD590 and 614 were drilled mostly on the Oyu Tolgoi mining licence and at the point when they crossed onto the Entrée/Oyu Tolgoi JV Property they were outside of the mineralized footprint.

 

Drill holes UGD582A and UGD584A were both geotechnical holes, drilled towards the northeast, parallel to the eastern boundary of the HNE mineralized footprint and crossed an interbedded sequence of ignimbrite and augite basalt with varying amounts of advanced argillic and phyllic alteration. Mineralization consists of about 3% sulphides, comprised of a mix of pyrite and chalcopyrite.

Drill holes UGD583A and UGD586 were both drilled towards the north-northwest and crossed the majority of the mineralized footprint of HNE within proposed Lift 2.  Each hole intersected predominantly phyllic altered quartz monzodiorite, cut by occasional intervals of unmineralized biotite-granodiorite dikes (ranging from <1 m to 9 m in drilled width).  Mineralization averages approximately 5% sulphide content, comprised mostly of chalcopyrite, along with lesser amounts of pyrite and occasional intervals with covellite and minor molybdenite. 

Drill holes UGD590 and UGD614 were drilled towards the north and northwest, respectively and both crossed the Hugo North mineralized footprint on the Oyu Tolgoi mining licence before crossing onto the Entrée/Oyu Tolgoi JV ground in unmineralized footwall (northwest side) lithologies comprised mainly of various andesitic tuff and hornblende-biotite granodiorite intrusive units. 

2022 DRILLING INFORMATION
Underground and surface drilling at HNE was carried out from November 22, 2021 to January 8, 2023, during which time 4 surface holes totalling 3,900.7 m and 22 underground holes totalling 4,459.9m were drilled. 

The underground holes were all collared from existing infrastructure on the Oyu Tolgoi mining licence and crossed onto the Entrée/OTLLC JV Property.  Several of the holes were drilled as "daughter holes" (wedges) from a "parent hole" at varying distances along the hole.  Underground holes were primarily drilled for geotechnical purposes and many targeted the base of Lift 1, or in the areas northeast and southwest of the current mineralized footprint, where key infrastructure for the development of the Lift 1 block cave will be excavated starting in 2024.  Several of the holes also crossed the mineralized footprint of Lift 1.  Additional underground holes were drilled deeper, targeting the current mineralized footprint of Lift 2, and for geotechnical purposes.

The four surface holes were all collared near the north end of HNE and drilled steeply towards the northwest, targeting Lift 2.  Only two of the surface holes successfully reached their target depth of 1,750 m and 1,800 m, respectively, while two holes were aborted at shallow depths and were not assayed.  Analytical results from the two surface holes are still pending.

Drill hole sample lengths generally averaged 2.0 m. Table 2 summarizes the drill hole details and Figure 1 shows the locations of the 2022 HNE drill holes and assay intervals discussed in this press release.

Table 2: Drill Hole Summary

Drill Hole

UTM EAST

UTM NORTH

Elevation
(m)

Length
(m)

Azimuth

Dip

Assay
Status

Surface Holes








EGD160

652658.7

4768421

1182

280.1

293

-74

Pending

EGD161

652757

4768433

1156

1,750.0

287

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