Most of metallurgical test results from this FS program can be found in COREMs report entitled Rosebel Saramacca Metallurgical Testing for the Feasibility Study no. T2300, (COREM, 2018).
Reverse circulation (RC) grade control drilling is planned on grid spacing of 12 m x 6 m pattern using inclined holes. In order to improve the definition of the ore zones, the preferred method for grade control is through RC drilling in all pits. Blast hole sampling is used for grade control in areas where RC grade control drilling is not completed. A fleet of five Shram Buggy rigs are used for RC drilling.
[H04R] LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) [6]
Prior to 2018, exploration work conducted by IAMGOLD-RGM on the Saramacca concession was performed by the Suriname Exploration department (SurEx) focussed on exploration work conducted outside of the Rosebel mining concession. Exploration activities in the first and second quarter of 2018 were performed by the Mine Exploration department (MinEx). The main exploration activities carried out by IAMGOLD-RGM since its involvement in the Saramacca gold project include DD and RC drilling, and some mapping.
Three mineralized domains are found on the property: the North, Central, and South domains. The northern domain includes the J Zone and Koolhoven deposits along a trend to the north of the volcanic rocks and the Pay Caro-East and Pay Caro deposits along a trend south of the volcanic rocks. The two trends follow a WNW-ESE orientation. The central domain only includes one deposit, Rosebel, which is striking east-west. The southern domain is also striking east-west and hosts the Mayo, Roma, and Royal Hill deposits.
I, Adam Doucette, P.Eng., as an author of this report entitled Technical Report on the Rosebel Gold Mine, Suriname with an effective date of September 23, 2018, do hereby certify that:
You’ve seen it in the movies—the protagonist inexplicably blinks awake from deep sleep because some silent but menacing force threatens. Something like that happened to me early one Sunday morning not long ago. And as soon as I stepped out of bed, I knew things were going to be bad, because the floor of my second-story bedroom was covered with water.
The QPs for this Technical Report, their responsibilities, and dates of personal inspections of RGM are provided in Section 29. The documentation reviewed, and other sources of information, are listed at the end of this report in Section 27 References.
I am a graduate of the LAVAL University with a B.Sc.Eng. in Metallurgical and Material Science Engineering in 1994.
The excess material coarse rejects and pulps of DD and RC samples sent to Filab were returned to IAMGOLD-RGM and stored securely on site. A portion of these samples (approximately 8% of total samples) were selected for check assay testing either randomly or to corroborate specific assay results at the umpire laboratory. Check assay analysis was completed at ALS by fire assay using 50 g charges with an atomic absorption finish to a detection limit of 0.005 g/t Au (method code FA-AA25).
[G06F] ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
The evaluation of Mineral Resources for the Saramacca gold project involved the following procedures:
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