GreenRoc Mining (GROC ) has published assay results from a drilling and channel sampling programme that have confirmed the high-grade nature of its Amitsoq Island deposit as well as showing the graphite layers to be both thicker, and more consistent, than previously thought.
The drilling programme at the Amitsoq Island deposit was conducted at four drill pads along the island’s ridge to test the down-dip continuation of the Upper Graphite Layer (UGL) and the Lower Graphite Layer (LGL), which outcrop along the eastern face of the island, it explained.
GreenRoc’s CEO, Kirk Adams, said the assays taken from the Group’s phase 1 drilling programme on the Amitsoq Island graphite deposit in Greenland between June and August 2021,confirm the deposit to be “one of the highest-grade graphite deposits in the world.”
The drill core and channel sample assays confirm the presence of high-grade graphite mineralisation at the deposit while increasing true widths observed down dip on both the upper and lower graphite layers support the potential for a sizable JORC Resource.
Addressing shareholders, Adams outlined: “In the lower graphite layer, the drill core assays are grading up to 23.01% contained graphite, with an average of 22.56%.
Furthermore, the drilling has shown that the true width of this layer below the old open pit mine widens with depth, increasing from 13.2 m to 14.95 m at around 100 m down dip from surface.
In addition, the upper graphite layer also showed similar consistency, with drill core assays of up to 19.83%, and an average of 18.91%, containing graphite. Adams detailed to investors that this upper mineralised zone has therefore also shown “increasing true widths with depth.”
GreenRoc said today’s set of assay results have given the company the confidence for the step-out drilling programme which it has planned for 2022. It added that it is positive about the prospects for the ultimate resumption of mining at the Amitsoq Island deposit in Greenland.
The Company explained that the set of assay results will be ‘a key element’ in the mineral resource estimation assessment which will be made by the Competent Person in due course.
In preparation for Phase 2 drilling, GreenRoc said discussions have been held with key contractors including drilling companies. In addition, the Company has had wooden storm-proof stairways constructed at key points on Amitsoq Island, to facilitate future drilling.
GreenRoc has also received the results of the first-year baseline environmental studies.
The environmental and ecological data obtained will inform the design of the second year of baseline studies which GreenRoc intends to carry out next year, ‘leading into the formal environmental and social impact studies required to apply for a mining licence for Amitsoq.’
Last month, GreenRoc identified significant graphite extensions from a field programme at the Kalaaq Deposit as part of the Amitsoq Graphite Project undertaken in July and August 2021.
Specifically, substantial zones of mineralisation were both confirmed and extended at the Kalaaq Deposit which is located on the Greenlandic mainland and due south of GreenRoc’s 100% owned Amitsoq Graphite Project, one of the highest-grade graphite projects globally.
The field exploration was conducted to sample mapped graphite horizons that had been identified in previous field campaigns, and to explore the wider area for new discoveries.
At the time, the Company said this sample indicates the potential for an additional mineralised graphite zone outside the primary target zones on the western side of the Kalaaq Deposit.
During a recent site visit, GreenRoc said the average grade in the Kalaaq area from channel sampling to date is 25.6% contained graphite. As a result, GreenRoc told investors that it would create a drilling plan with the objective of declaring a maiden resource at Kalaaq.
In addition, GreenRoc said the recent fieldwork at Kalaaq has revealed additional graphite targets, which will be reported on fully in due course, upon receipt of laboratory assays.
GreenRoc, which was created to buy the spun-out assets of Alba Mineral Resources, intends to utilise its assets in Greenland to become a key supplier of critical, high-demand minerals.
Its portfolio of assets in Greenland include a range of 100% owned projects acquired from Alba Mineral Resources including; the Amitsoq graphite project, the Thule Black Sands ilmenite project, the Melville Bay iron project and the Inglefield multi-element project.
During a recent management site visit to Amitsoq, which is considered ‘one of the highest-grade graphite projects globally’, underground mine workings were inspected.
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