Continental Gold Announces High-Grade Gold Channel Sampling Results from Underground Development Drifts at Buriticá, including 41.57 g/t Gold along 42 Metres of Strike
TORONTO, Sept. 9, 2019 /CNW/ - Continental Gold Inc. (TSX:CNL; OTCQX:CGOOF) ("Continental" or the "Company") is pleased to announce high-grade channel sampling assay results from seven development drifts being prepared as part of the underground construction at its 100%-owned Buriticá project in Antioquia, Colombia. Development of the Buriticá project remains on schedule with first gold pour anticipated in H1 2020. Supporting information for results discussed in this release can be found in Figures 1-6 and all sampling widths reported herein are at true horizontal metres.
Figure 1: Underground Channel Sampling Results from the Central-Western Portion of the Yaraguá System at 1,175 RL (CNW Group/Continental Gold Inc.)
Figure 2: Underground Channel Sampling Results from the Western Portion of the Veta Sur System (CNW Group/Continental Gold Inc.)
Figure 3: Underground Channel Sampling Results from the North-Eastern Portion of the Veta Sur System (CNW Group/Continental Gold Inc.)
Figure 4: Underground Channel Sampling Results from the Eastern-most Part of the Veta Sur System (CNW Group/Continental Gold Inc.)
Figure 5: Underground Channel Sampling Results from the South-Central Portion of the Veta Sur System at 1,180 RL (CNW Group/Continental Gold Inc.)
Figure 6: Underground Channel Sampling Results from the South-Central Portion of the Veta Sur System at 1,180 RL (CNW Group/Continental Gold Inc.)
New channel sampling results—from underground development drifts in the Yaraguá and Veta Sur systems being evaluated for stope design at the Buriticá project currently under preparation for mine start-up in 2020—have returned high grades of gold and silver over significant strike lengths. Results are as follows:
42 metres @ 41.57 g/t gold and 21.09 g/t silver at 2.48 metres width
47 metres @ 24.87 g/t gold and 32.45 g/t silver at 2.69 metres width
20 metres @ 19.80 g/t gold and 381.37 g/t silver at 2.89 metres width
18 metres @ 13.04 g/t gold and 31.16 g/t silver at 2.43 metres width
100 metres @ 9.64 g/t gold and 57.57 g/t silver at 2.54 metres width
19 metres @ 9.53 g/t gold and 10.44 g/t silver at 2.23 metres width
26 metres @ 9.32 g/t gold and 36.62 g/t silver at 3.19 metres width
42 metres @ 9.60 g/t gold and 8.17 g/t silver at 2.68 metres width
The weighted average gold grade for the mineralized intervals, which comprise a portion of the drift widths, is 16.86 g/t gold over 314 metres strike length.
Development drifts continue to be well-mineralized along the entire strike length where channel sampling results have been reported.
Face channel sampling in the drifts includes gold mineralization that extends beyond the width of the development drift, indicating potential for broader mineralization than currently reported. Short distance bazooka drilling is underway to assess this potential.
Lateral underground development for the project continues to accelerate, with a new monthly record of 1,368 metres completed in August 2019, more than 20% ahead of the plan.
"The project continues to advance on schedule with anticipated first gold pour fast approaching in H1 2020. High grades of both gold and silver are being observed both visually and through channel sampling assay results in the vast majority of drifts on mineralized structures in both vein systems and at all elevations. Importantly, the Company just completed blasting and connecting a ventilation raise bore in the Veta Sur system. With better underground ventilation now available at the elevation where the future mill will be located, development will accelerate more rapidly along high-grade mineralized structures," commented Ari Sussman, CEO.
Details
Assay results have been received for channel sampling results from seven development drifts totalling 314 metres of strike length. Six of the development drifts are located in the Veta Sur system with the remaining drift located in the Yaraguá system.
Yaraguá System
Located in the central-western part of the Yaraguá system at an elevation of 1,175 metres, very high-grade gold has been encountered along a mineralized corridor in the western portion of a development drift, with results as follows (Figure 1):
42 metres @ 41.57 g/t gold and 21.09 g/t silver at 2.48 metres width
Further east along the same drift, composite channel sampling has also encountered high-grade gold mineralization as follows:
26 metres @ 9.32 g/t gold and 36.62 g/t silver at 3.19 metres width
Underground drift development is continuing at present to extend mineralization to the both the east and west along the drift.
Veta Sur System
High-grade gold over robust strike lengths has been channel sampled along six different development drifts in the Veta Sur system. The drifts range 430 vertical metres of elevations from 1,610 metres (near the upper part of the Veta Sur system) to 1,180 metres (at the Higabra Valley elevation where the mill is currently being built).
Assay results from channel sampling for a drift in the western portion of the Veta Sur system has yielded a new area of mineralization (Figure 2). High-grade gold, which was encountered in the southern drift on this section, remains open for expansion along strike to the southwest, with results as follows:
18 metres @ 13.04 g/t gold and 31.16 g/t silver at 2.43 metres width
A new drift, currently being developed along a mineralized structure in the northeastern portion of the Veta Sur system, has encountered continuous high-grade gold through channel sampling over a significant strike length (Figure 3). The high-grade mineralization encountered in the drift remains open to the southwest, with development continuing to advance. Assay results from this new drift are as follows:
47 metres @ 24.87 g/t gold and 32.45 g/t silver at 2.69 metres width
Another new drift, located at the eastern-most portion of the Veta Sur system, is being developed in both the east and west along strike of a mineralized structure (Figure 4). To date, assay results have begun to outline an exciting high-grade zone with mineralization remaining open along strike to the east and west, with results as follows:
20 metres @ 19.80 g/t gold and 381.37 g/t silver at 2.89 metres width
Two parallel drifts, which are located in the southcentral portion of the Veta Sur system at an elevation of 1,180 metres, have outlined high-grade gold over robust drift lengths in two separate mineralized structures. Mineralization remains open along strike to the southwest in both development drifts, with results as follows:
100 metres @ 9.64 g/t gold and 57.57 g/t silver at 2.54 metres width (Figure 5)
42 metres @ 9.60 g/t gold and 8.17 g/t silver at 2.68 metres width (Figure 6)
Additional development drifts at various elevations are currently being advanced for both the Yaraguá and Veta Sur systems; once channel sampling assay results are received and evaluated, they will be released in a timely manner.
For reference, the mineral reserve estimate for the Buriticá project (as at February 24, 2016) is as follows:
RESERVE
GRADES
CONTAINED METAL
Category
Tonnes
Gold
(g/t)
Silver
(g/t)
Gold
(oz)
Silver
(oz)
Proven
677,400
21.1
60.0
459,000
1,307,000
Probable
13,039,400
7.8
22.5
3,251,000
9,412,000
Total P&P
13,716,800
8.4
24.3
3,710,000
10,719,000
Notes: Based on cut-off grades of 3.8 g/t for Yaraguá and 4.0 g/t for Veta Sur, $950 per ounce gold price, and US$:COP exchange rate of 2,850. Rounding of some figures may lead to minor discrepancies in totals.
Source: Company technical report entitled "NI 43‐101 Buriticá Mineral Resource 2019‐01, Antioquia, Colombia" dated March 18, 2019 with an effective date of January 30, 2019, led by independent consultants Ivor Jones Pty Ltd, which includes the mineral reserve estimate as at February 24, 2016.
Geological Description of the Buriticá Project
Continental's 100%-owned, 75,604-hectare project, Buriticá, contains several known areas of high-grade gold and silver mineralization, of base metal carbonate-style ("Stage I") variably overprinted by texturally and chemically distinctive high-grade ("Stage II") mineralization. The two most extensively explored of these areas (the Yaraguá and Veta Sur systems) are central to this land package. The Yaraguá system has been drill-outlined along 1,350 metres of strike and 1,800 vertical metres and partially sampled in underground developments. The Veta Sur system has been drill-outlined along 1,300+ metres of strike and 1,800 vertical metres and has been partially sampled in underground developments. Both systems are characterized by multiple, steeply-dipping veins and broader, more disseminated mineralization and both remain open at depth and along strike, at high grades.
Technical Information
Donald Gray, Chief Operating Officer and a Qualified Person for the purpose of Canadian National Instrument 43‑101 ("NI 43‑101"), has prepared or supervised the preparation of, or approved, as applicable, the technical information contained in this release.
Channel samples are taken continuously along the walls of the underground crosscut and across the face of the underground drift. Faces are nominally spaced every 2 to 3 metres along the drift, and face composites average six length-weighted channel samples. Averaged mineralized widths shown in the tabulations and figures for selected intervals along strike are true horizontal metres at a 2.0 g/t Au cut-off and a 2.4 m minimum width. The minimum width is chosen to match the expected stope minimum width, thus the intervals include some of expected planned edge and internal mining dilution. No capping has been applied to sample composites. The Company utilizes a rigorous, industry-standard QA/QC program.
Rock samples have been prepared and analyzed at Continental Gold's Yaraguá mine laboratory at Buriticá, Colombia. Blanks, duplicates and certified reference standards are inserted into the sample stream to monitor laboratory performance. Crush rejects and pulps are kept and stored in a secured storage facility for future assay verification. Although historic correlation between analytical results from the Company's internal laboratory and certified independent laboratories for gold and silver analysis have been within acceptable limits, the Company's internal laboratory is not independent or certified under NI 43‑101 and, as such, results in this release should only be taken by the reader as indicative of future potential.
For information on the Buriticá project, please refer to the technical report, prepared in accordance with NI 43‑101, entitled "NI 43‐101 Buriticá Mineral Resource 2019‐01, Antioquia, Colombia" and dated March 18, 2019 with an effective date of January 30, 2019, led by independent consultants Ivor Jones Pty Ltd. The technical report is available on SEDAR at www.sedar.com, on the OTCQX at www.otcmarkets.com and on the Company website at www.continentalgold.com.
About Continental Gold Continental Gold is the leading large-scale gold mining company in Colombia and is presently developing it's 100% owned Buriticá project in Antioquia. Buriticá is one of the largest and highest-grade gold projects in the world and is being advanced utilizing best practices for mine construction, environmental care and community inclusion. Led by an international management team with a successful record of discovering, financing and developing large high-grade gold deposits in Latin America, the Buriticá project is on schedule with first gold pour anticipated during the first half of 2020. Additional details on Continental Gold's suite of gold exploration properties are also available at www.continentalgold.com.
Forward-Looking Statements This press release contains or refers to forward-looking information under Canadian securities legislation—including statements regarding: timing of drill results, first gold pour and commercial production; advancing the Buriticá project; exploration results; potential mineralization; potential development of mine openings; potential improvement of mining dilution grades; reducing start-up risks; and exploration and mine development plans—and is based on current expectations that involve a number of significant business risks and uncertainties. Forward-looking statements are subject to other factors that could cause actual results to differ materially from expected results. Readers should not place undue reliance on forward-looking statements. Factors that could cause actual results to differ materially from any forward-looking statement include, but are not limited to, an inability to advance the Buriticá project to the next level, failure to convert estimated mineral resources to reserves, capital and operating costs varying significantly from estimates, the preliminary nature of metallurgical test results, delays in obtaining or failures to obtain required governmental, environmental or other project approvals, political risks, uncertainties relating to the availability and costs of financing needed in the future, changes in equity markets, inflation, changes in exchange rates, fluctuations in commodity prices, delays in the development of projects and the other risks involved in the mineral exploration and development industry. Specific reference is made to the most recent Annual Information Form on file with Canadian provincial securities regulatory authorities for a discussion of some of the factors underlying forward-looking statements. All the forward-looking statements made in this press release are qualified by these cautionary statements and are made as of the date hereof. The Company assumes no responsibility to update them or revise them to reflect new events or circumstances other than as required by law.
Share this article