Dreadnought Resources Limited (ASX:DRE) has continued to confirm thick, high-grade REE mineralisation at Yin, within its 100% owned Mangaroon Project in the Gascoyne Region of Western Australia.
Assay results from 91 holes of 120 RC holes drilled along the first ~three km of Yin have now been reported. The RC rig has moved on to the C1-C5 carbonatites where first-pass, pattern drilling is ongoing. The diamond rig continues to drill twin holes at Yin in preparation for an initial JORC Resource due in the December 2022 quarter.
Significant intercepts include:
• YINRC086MET: 54m @ 2.07% TREO from 24, including 17m @ 4.10% TREO (30% NdPr:TREO) from 41m
• YINRC087: 38m @ 1.84% TREO from 48m, including 23m @ 2.70% TREO (31% NdPr:TREO) from 57m
• YINRC085: 30m @ 1.82% TREO from surface, including 17m @ 2.87% TREO (31% NdPr:TREO) from 8m
• YINRC086: 43m @ 0.93% TREO from 6m, including 17m @ 2.87% TREO (30% NdPr:TREO) from 33m
“Yin continues to deliver exceptional REE results. With 91 of 120 holes reported, we remain on schedule to deliver our initial JORC resource at Yin in the December 2022 quarter. Importantly this initial JORC Resource will only cover ~3km of the interpreted ~16km of strike of Yin. RC Drilling of C1-C5 carbonatites and diamond drilling at Yin is progressing well with updates expected shortly,” Managing Director, Dean Tuck, said.
RC Assay Results (YINRC001-YINRC091)
The first RC programme at Yin has comprised 120 RC holes for ~12,255m of which assay results for 91 holes have been received.
The program,e commenced on Section 7350200mN in June 2022 and successfully intersected broad, high-grade REE ironstones.
Subsequent lines were drilled to the north and south covering ~three km at ~100-200m spacings and have been infilled to 50-100m spacings in preparation for an initial JORC Resource in the December 2022 quarter.
Subsequent analysis of the Yin trend indicates over ~16kms of strike potential of which only ~3kms has been drilled to date.
Drilling to date has confirmed the presence of the main REE bearing lode horizon along ~3km of strike often with multiple parallel lodes intersected. The main lode horizon pinches, swells and changes dip and orientation along strike and ranges in thickness from one to 54m. The parallel lodes have been intersected above and below the main lode and often exhibit a similar orientation as the main lode with thicknesses ranging from one to 10m.
The REE bearing ironstones consist of goethite and hematite dominated oxide zones near the surface (top ~80m) transitioning into a fresh ferrocarbonatite dyke (fresh REE ironstone), comprised of ankerite and siderite below the base of oxidation. The ironstones are surrounded by a variable zone of fenitised country rock. Both the ironstone and the fenite immediately surrounding the ironstone are mineralised with each ironstone and ferrocarbonatite containing at least one central interval of higher-grade mineralisation.
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