Royal Road Minerals Limited (TSX-V: RYR) is pleased to announce further interim drilling results from its Caribe gold discovery in northeastern Nicaragua.
The Caribe project forms a part of the Company’s Strategic-Alliance agreement (see press release; September 6, 2017) with Hemco Mineros Nicaragua (“Hemco” a subsidiary of Colombia’s Grupo Mineros S.A.) and is located in the highly prospective “Golden Triangle” of northeastern Nicaragua. Royal Road Minerals is operator of the Strategic Alliance.
Royal Road’s exploration team discovered the Caribe project during reconnaissance exploration in February of 2018. Outcrop at Caribe is concealed under soil and laterite cover and there is no previous record of mining or mineralization in the area. In 2019, Royal Road and Hemco completed an initial 4-hole, exploratory drilling program at Caribe which returned promising results for gold (see Press Release October 7, 2019). A follow-up diamond drilling program commenced at the project during August of last year and has returned encouraging initial results including CB-DDH-016, 100.45 meters at 1.0 gram per tonne; CB-DDH-017, 90 meters at 1.0 gram per tonne and CB-DDH-015, 63 meters at 1.0 gram per tonne gold (see Press Releases November 10, 2020, February 11, 2021, March 17, 2021 and Table 1). Results for a further 6 exploratory drill holes have now been returned. Significant results include:
CB-DDH-025 207.45 meters at 1.1 grams/tonne gold (including 21 meters at 4.1 grams/tonne gold)
CB-DDH-027 31 meters at 1.0 gram/tonne gold
CB-DDH-029 37.8 meters at 1.0 grams/tonne gold
(not true width and the company does not have sufficient information to make a determination of the true widths of the drill hole intersections)
Gold at Caribe is hosted in hydrothermal breccia bodies with a sulfide-rich matrix composed of pyrite, chalcopyrite and molybdenite and in surrounding (host) volcanic breccias as a broader, locally stratabound lower temperature gold-mineralized halo. Drill hole CB-DDH-025 which intersected 207.45 meters at 1.1 grams per tonne gold is representative of the broader, volcanic breccia-hosted style of gold mineralization and drill holes CB-DDH-027 and CB-DDH-029 both intersected the hydrothermal breccia style of mineralization and have extended the potential of the gold mineralized system towards the north (see Figure 1). The extent of gold mineralization at Caribe is unknown, due principally to extensive soil and saprolite cover with the system remaining open to the north, possibly also to the south and at depth.
Exploratory drilling is continuing at Caribe. The Company is also currently completing IP geophysics at the project and Rotary Air Blast/Reverse Circulation (RAB/RC) drilling, aimed at sampling beneath the soil and laterite cover, is expected to commence later this week.
“The fact that drill hole CB-DDH-025 is not dominated by hydrothermal breccia and that its 207 meters of gold mineralization is of the lower-temperature, volcanic-breccia-hosted style, is interesting and encouraging,” said Dr. Tim Coughlin, Royal Roads President and CEO. “It implies that we are still some way off locating the intrusive source of the gold and perhaps copper, but that in any case, even the lower temperature halo is carrying potentially economic grades and volumes. These recent results open up potential towards the north and we are confident that the RAB rig will assist in further expanding the surface extent of this exciting new discovery.”
TABLE 1: CARIBE PRELIMINARY DRILL RESULTS TABLE (> 0.9 g/t GOLD)
|HOLE ID||E||N||Z(m)||DIP||AZIM||DEPTH||FROM||TO||LENGTH (m)*||GRADE (g/t)|
|CB-DDH-003||793254||1530689||49||60||42||112.85||78.00||80.00||2||1.7||BOGGED AND ABANDONED|
|CB-DDH-004||793346||1530775||44||60||40||67.10||13.00||31.00||18||1.0||BOGGED AND ABANDONED|
|CB-DDH-005||793258||1530689||43||60||220||100.65||NO SIGNIFICANT INTERSECTIONS >1g/t GOLD|
|CB-DDH-007||793349||1530769||36||60||220||123.52||22.00||28.00||6||1.0||BOGGED AND ABANDONED|
|CB-DDH-008||793395||1530824||35||60||40||79.30||NO SIGNIFICANT INTERSECTIONS >1g/t GOLD|
|CB-DDH-009||793270||1530770||38||60||125||161.65||9.00||14.00||5||1.0||BOGGED AND ABANDONED|
|CB-DDH-011||793338||1530633||35||60||40||80.82||38.00||80.00||42||1.0||BOGGED AND ABANDONED|
|CB-DDH-012||794646||1532046||37||60||360||184.52||NO SIGNIFICANT INTERSECTIONS >1g/t GOLD|
|CB-DDH-015||793349||1530771||43||90||0||190.62||18.00||26.00||8||1.0||BOGGED AND ABANDONED|
|CB-DDH-016||793314||1530813||43||60||125||149.45||49.00||149.45 (EOH)||100.45||1.0||BOGGED AND ABANDONED|
|CB-DDH-017||793295||1530744||43||60||90||244||51.00||141.00||90||1.0||BOGGED AND ABANDONED|
|CB-DDH-018||793364||1530641||35||60||40||68.62||NO SIGNIFICANT INTERSECTIONS >1g/t GOLD||BOGGED AND ABANDONED|
|CB-DDH-019||793296||1530664||35||50||40||102.17||0.00||35.00||35||1.0||BOGGED AND ABANDONED|
|CB-DDH-020||793604||1530412||37||60||40||67.1||NO SIGNIFICANT INTERSECTIONS >1g/t GOLD||BOGGED AND ABANDONED|
|COPPER %||MOLYBDENUM ppm||SILVER ppm|
|CB-DDH-024||793338||1530633||34||50||40||114.57||NO SIGNIFICANT INTERSECTIONS >1g/t GOLD||BOGGED AND ABANDONED|
|CB-DDH-025||793290||1530792||34||60||125||224.17||3.00||210.45||207.45||1.1||INCLUDING 21m at 4.2 g/t GOLD|
|COPPER %||MOLYBDENUM ppm||SILVER ppm|
*NOT TRUE WIDTH AND THE COMPANY DOES NOT HAVE SUFFICIENT INFORMATION TO MAKE A DETERMINATION OF THE TRUE WIDTHS OF THE DRILL HOLE INTERSECTIONS
DOWN HOLE CUT-OFF 0.2 g/t gold
MAXIMUM INTERNAL DILUTION, 10 Meters
COPPER EQUIVALENT = COPPER % + (GOLD% X 5850) + (MOLYBDENUM% X 3) + (SILVER% X 83)
The information in this news release was compiled, reviewed and verified by Dr. Tim Coughlin, BSc (Geology), MSc (Exploration and Mining), PhD (Structural Geology), FAusIMM, President and CEO of Royal Road Minerals Ltd and a qualified person as defined by National Instrument 43-101. Royal Road Minerals employees are instructed to follow standard operating and quality assurance procedures intended to ensure that all sampling techniques and sample results meet international reporting standards. More information can be found on Royal Road Minerals web site at www.royalroadminerals.com.
Quality Assurance and Quality Control:
Diamond drill core is cut in half over 1-meter downhole intervals using a core saw. Samples are prepared and assayed by independent and ISO accredited laboratories of Bureau Veritas Minerals (BVM) and their local subsidiaries. Bagged 1-meter samples are collected from site and delivered to BVM sample preparation laboratories in Managua. Samples are prepared using the BVM codes PRP70-250 plus PUL85, where samples are crushed to 70% less than two millimeters, a riffle split of 250 grams is collected and then pulverized to better than 85 per cent passing 75 microns. Prepared sample pulps are then sent for analysis to BVM labs in Vancouver Canada. Gold is analyzed by fire assay with an atomic absorption finish and a measurement range of 0.005 to 10 ppm. Samples over 10-ppm gold are re-analyzed by fire assay with a gravimetric finish. Multielement concentrations are analyzed by four-acid digestion and inductively coupled plasma mass spectrometer. Samples over 10,000ppm Cu, Zn, Pb or Mn and 200 ppm W, are re-analyzed with four acid digestion and Inductively Coupled Plasma Emission Spectrometer (ICP-ES). Commercially prepared standards (gold-copper pulps), blanks (pulps and coarse chips) and field duplicates are inserted into the sample stream by Royal Road Minerals for a total of 15% QA/QC to ensure sample precision. In the case of duplicate analyses of a sample, the average of both analyses is used as the final reported value. Unless otherwise stated, gold grades are not capped for calculation of length-weighted averages.
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