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Integra Resources Intercepts 1.20 g/t AuEq Over 150.9m on DeLamar Project, Announces Addition of Second Drill Rig

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Integra Resources Intercepts 1.20 g/t AuEq Over 150.9m on DeLamar Project, Announces Addition of Second Drill Rig

 

 

 

 

 

Integra Resources Corp. (TSX-V:ITR) (OTCQX:IRRZF) is pleased to announce initial assay results from 9 of 13 drill holes completed to date from its 2018 drill program on the DeLamar Gold and Silver Project located in the historic Owyhee County mining district in south western Idaho. Initial results demonstrate continuity of certain structures within the DeLamar Deposit. The results announced today are from 2,903 m of drilling from the approximate 20,000 m exploration program underway in 2018. 

 

 

“With the relatively slow start due to inclement winter drilling conditions now behind us, the drill program at DeLamar is now in high-gear with a second drill rig added and a third on its way in June.” stated George Salamis, CEO of Integra Resources. “The first drill holes at DeLamar were designed to provide data and orientation on geology, vein structure and optimized drilling conditions testing large zones of gold-silver mineralization outside of areas that were previously mined by Kinross from 1977 to 1998. The first 9 holes of dozens more to come reported encouraging bulk grades that correlate well between drill holes over large distances. As Integra ramps up drilling at DeLamar and later in June at Florida Mountain, we are gaining a better understanding of lithological and structural controls on the gold-silver mineralization that was mined in the past by Kinross and others, as far back as the late 1880’s. These initial results serve to underscore the resource growth opportunities at DeLamar.” 

 

 

DeLamar Drill Results Summary 

 

 

The following table highlights selected intercepts from this initial tranche of drill results. Detailed results are presented in the link to the full assay results table below. 

 

 

 
Drill Hole
Number
From
(m)
To
(m)
Interval
(m) (1)
g/t Au g/t Ag g/t AuEq(2)
IDM18_001 94.49 111.25 16.76 0.71 103.11 1.92
IDM18_001 140.21 184.40 44.20 0.32 31.93 1.09
IDM18_002 0.00
including
64.01 64.01
4.57
0.51
0.98
33.98
261.44
0.91
4.05
IDM18_003 99.06
including
135.64 36.58
22.86
0.36
0.44
90.08
138.79
1.42
2.07
IDM18_005 94.49
Including
Including
234.70 140.21
16.76
3.05
0.59
0.67
1.41
51.09
214.23
721.57
1.19
3.19
9.90
IDM18_006 173.74 182.88 9.14 0.34 62.91 1.08
IDM18_007 184.40
Including
335.28 150.88
24.38
0.63
1.33
48.59
83.61
1.20
2.30
IDM18_008 71.63 163.07 91.44 0.36 58.50 1.05
IDM18_009 18.29 124.97 106.68 0.48 7.23 0.57
 
 

(1) Downhole thickness; true width varies depending on drill hole dip; most drill holes are aimed at intersecting the vein structures close to perpendicular therefore true widths are close to downhole widths (approximately 75% conversion ratio)

 

(2) Gold equivalent = g Au/t + (g Ag/t ÷ 85)

 

 

To view a cross section of the Sullivan Gulch area within the DeLamar Deposit please click on the following link: 

 

https://www.integraresources.com/site/assets/files/2568/xn_plot_2_vuse.pdf 

 

To view a plan map of the current drill program, please click on the following link: 

 

https://www.integraresources.com/site/assets/files/2568/plan_map_vuse.pdf 

 

 

DeLamar Exploration Ongoing 

 

 

As shown in the plan map above, further assays are pending and over 30 more drill holes (17,000 m) are scheduled for drilling in the 2018 exploration campaign at DeLamar, which is designed to test both the lower-grade inferred resource at DeLamar and explore for the high-grade vein systems historically intercepted by NERCO/Kinross. 

 

 

Since the start of the 2018 campaign, the Company has drilled roughly 4,000m in 13 drill holes, with assays pending from a further 4 holes beyond what has been released today. Initial drill rates encountered by the company were slower than expected due to inclement winter weather conditions, but with drill mobilization and drilling procedures now amended, drilling rates for more recent holes have averaged 90 -100 m/day for RC drilling, while initial diamond drill holes have exhibited rates of roughly 60 m/day. 

 

 

Drilling is expected to commence on the Florida Mountain deposit in the summer of 2018, with initial drilling to be focused on the depth extensions of veins that were mined at surface by Kinross in the 1990’s. 

 

 

Results Interpretation 

 

 

Drill results announced today demonstrate that DeLamar remains open for resource expansion, on-strike and down-dip of the mineralization mined by Kinross/Nerco in the late 1970’s to late 1990’s. In particular, drill hole IDM18_007 ended in successive +1 g/t AuEq mineralization indicating that further drilling is certainly warranted in the down dip direction of the deposit to the south. In addition, the best intercepts reported in this first round of assays (drill holes IDM18_005, IDM18_007, and IDM18_008) were obtained from the south east portion of the deposit, in the Sullivan Gulch area. This area has not seen previous mining activity by Kinross, nor to our knowledge, any past underground mining and warrants significant further exploration work. 

 

 

The DeLamar Deposit, within the DeLamar Project, is a low-sulphidation epithermal-type deposit hosted within Miocene-aged felsic volcanics and has an inferred resource of 117, 934, 000 tonnes grading 0.70 g/t AuEq using a 0.3 g/t AuEq cut-off, containing an estimated 2.67 M oz of gold equivalent (1.59 M oz Au, 91.88 M oz Ag). A maiden inferred resource published earlier this year on the Florida Mountain Deposit brings the total DeLamar Project inferred resource to 154,539,000 tonnes grading 0.71 g/t AuEq at a 0.3 g/t AuEq cut-off, for a total of 3,543,000 oz AuEq. Though low grade mineralization was mined and processed in a milling operation from 1977 to 1998, column leach test work and trial heap leaching were performed as a test on mineralization from the DeLamar and Florida Mountain areas indicating potential amenability to heap leaching. 

 

 

As demonstrated by the recent drilling, two specific rocks types, namely the porphyritic rhyolite and quartz latite units, are the preferential host lithologies for gold-silver mineralization. The upper banded rhyolite unit that sits stratigraphically above these units appears to have behaved as a “trap rock” barrier (aquitard) for mineralizing fluids circulating within the epithermal system at DeLamar. 

 

 

Sampling and QA/QC Procedure 

 

 

Thorough QA/QC protocols are followed on the Project including insertion of duplicate, blank and standard samples in all drill holes. The samples are submitted directly to the American Assay Lab in Reno, Nevada for preparation and analysis. Analysis of Au and Ag is performed using fire assay method with atomic absorption (AA)and gravimetric finish. 

 

 

Qualified Person 

 

 

The scientific and technical information contained in this news release has been reviewed and approved by Gary Edmondo of Reno, Nevada, who serves as Integra’s Chief Geologist, and is a “qualified person” within the meaning of National Instrument 43- 101 – Standards of Disclosure for Mineral Projects. 

 

 

About Integra Resources 

 

 

ntegra Resources Corp. is a development-stage company engaged in the acquisition, exploration and development of mineral properties in the Americas. The primary focus of the Company is advancement of its DeLamar Project, consisting of the neighbouring DeLamar and Florida Mountain Gold and Silver Deposits in the heart of the historic Owyhee County mining district in south western Idaho. The first exploration program in over 25 years is currently underway on the DeLamar Project with more than 20,000 meters planned for 2018. The management team comprises the former executive team from Integra Gold Corp. 

 

Posted May 11, 2018

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