A drainage line currently exists to the east of the Royal Hill pit and is planned to be maintained through the mine life. An additional drainage system west the pit drains surface water to a settling pond south west of the pit. Access to the mill will be via the haul road located to the north of the pit.
[G05D] SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES (for continuous casting of metals B22D 11/16; valves per se F16K; sensing non-electric variables, see the relevant subclasses of G01; for regulating electric or magnetic variables G05F)
Since 1995, several metallurgical test work campaigns were carried out on composite samples from each of the pits at Rosebel Gold Mine. The test work included programs at Hazen Laboratory (1995), Mineral Resources Limited (1996), and Kappes Cassiday Associates (1999). The outcome of this test work dictated the design of the original plant.
Table 1-4 provides a summary of exploration drilling at Saramacca since 2002. From 2016 to 2018, exploration work conducted by IAMGOLD on the Saramacca concession was performed by the Suriname Exploration department (SurEx) focused on exploration work conducted outside of the RGM concession. Exploration activities in the first and second quarter of 2018 were performed by the Mine Exploration department (MinEx).
The reasonable prospects for eventual economic extraction requirement generally implies that quantity and grade estimates meet certain economic thresholds and that Mineral Resources are reported at an appropriate cut-off grade that takes into account extraction scenarios and processing recovery. SRK considers that the Saramacca gold project is primarily amenable to open pit extraction. To assist with determining which portions of the gold deposits show reasonable prospect for eventual economic extraction from an open pit and to assist with selecting reporting assumptions, Mr. Nicolas Szwedska, P.Eng. of BBA developed a conceptual open pit shell using the same optimization parameters as those used in the Mineral Reserve study. Mining, processing and general and administrative (G&A) costs are based on a Mineral Reserve cost model, which was developed using an activity-based costing approach. Other pit optimization parameters include:
The performance of control samples analyzed by RGM Lab Suriname is considered acceptable. All blank material samples returned values below ten times the detection limit, indicating that contamination during the sample preparation has not been identified or very minimal.
The NTSB’s preliminary report, released on July 17, includes two passengers’ accounts of the airplane flying in and out of clouds just before the crash; one reported texting the passenger in the copilot’s seat to request that he ask the pilot to turn around. The pilot reported that visibility decreased “from about three to five miles to nil” as the floatplane entered the Sulzer Portage. After initiating a climbing 180-degree turn, he was “momentarily disoriented” by what appeared to be a body of water ahead. By the time he recognized the mountainside in front of the airplane and attempted a steep emergency climb at full power, the aircraft was no longer in a position to clear terrain.
The latest Zigbee 3.0 protocol ensures the hub will continue working—sending emergency notifications through LeakSmart’s free smartphone application—even if Wi-Fi is down or the power is out.
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MinEx performed regular grab sampling, field reconnaissance, and mapping of outcrops in the South Triangle area during the exploration drilling campaign
A total of 184,450 m of RC grade control drilling was performed since the last resource update (NI43-101, June 2017) and has been used in the present resource estimate. The database was closed as of January 15, 2018 for the RGM concession.
A Community Relations Plan with supporting guideline and procedures was developed to minimize the mines impact on communities and the environment.
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