The Conversation (0)
Copper Porphry Potential Grows at Georgetown Project
Highlights
- High grade copper veins have developed adjacent to a copper porphyry system at Fiery Creek prospect, within the Georgetown Project in Queensland
- High-grade copper assays of up to 23.5% Cu
- Mineralogy review strongly supports the presence of a shallow, constrained significant copper mineralised porphyry system
- Geochemistry favourably compares to similar geologically aged projects including Mount Leyshon, Kidston, Red Dome and nearby Mt Turner
- Copper mineralised zone of the Fiery Creek porphyry system is interpreted to lie close to surface
- Outcropping vein areas indicative of pencil porphyry type systems as documented at North Parkes and Ridgeway, NSW
- Extended geochemistry sampling program underway at Fiery Creek with planned detailed geologic mapping activity
- Geophysics survey (pole dipole, IP, resistivity, MT) scheduled for August 2024
Emu Non-Executive Chairman Peter Thomas commented,
“Emu is increasingly confident the Fiery Creek prospect has the makings of a massive multi- million-tonne copper porphyry system. In addition to Mr Maund’s assessment, the results of our geochemistry work to date at Fiery Creek have confirmed the potential for a near-surface, high- grade deposit which warrants further investigation. Emu intends to strengthen its understanding of this discovery in 2024 by applying modern exploration techniques not previously used in the area. This includes the next key step for the Company which is to undertake a definitive geophysical survey of the Fiery Creek Prospect area in August this year.”
Emu has contracted Independent Consulting Economic Geologist and Fellow of the AusIMM and AIG, Mr Nigel Maund, to assess the Company’s Fiery Creek prospect, within the Georgeotwn Project.
The scope of Mr Maund’s assessment includes:
- a comprehensive mineralogical investigation of the Fiery Creek vein samples1,
- review of EMU exploration data, and
- an update to his interim report2.
In his interim report, Mr Maund suggested the Fiery Creek quartz, copper oxide, sulphide vein array system appears to be developed within the cupolas of two possible, closely spaced “pencil porphyry – type” mineralised systems.
Further research work undertaken by Mr Maund, relying on the updated EMU geologic exploration database, has strengthened his view and interpretation of the system. Indeed, evidence of feldspar porphyry intrusive bodies and phreatic breccias and advanced argillic alteration have been confirmed from Fiery Creek samples viewed under microscope.
Figure 1. Fiery Creek Copper/Yataga Granodiorite summarising rock
Fiery Creek Geochemistry Suggests Shallow Copper Mineralisation
Substantial high-grade copper assays of up to 23.5% Cu were recorded with anomalous associated elements: bismuth (up to 1.88%), silver (up to 480 g/t), arsenic (up to 1,650 ppm), antimony (up to 667 ppm), zinc (up to 1,470 ppm), barium (up to 1.25 %) and tellurium (up to 215 ppm). Mr Maund noted that the system is copper dominated with significant bismuth and silver. Referencing Dr Scott Halley’s3 work, Mr Maund noted the level of erosion within a porphyry copper system can be pinpointed by its geochemical footprint and its silicate and sulphide mineralogy. See Figures 2 and 3 below. These diagrams illustrate that the Fiery Creek system is likely to have been eroded to the upper potassic alteration shell of a porphyry copper system with high grade copper impregnated veining currently exposed to surface.
Click here for the full ASX Release
This article includes content from EMU NL, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Quarterly Activities Report for the Period Ending 31 March 2024
Highlights
- Assay results received from last quarter's drilling at the Ti-Tree project identified mineralisation at several prospects.
- Strong results, consistent with the zones of a porphyry copper system were received from the first 22 holes drilled into the Minnie Springs Cu-Mo-Ag porphyry prospect, including intercepts of:
- MSRC012: 18m @ 0.37% Cu and 9.7 g/t Ag from 94m downhole, and;
- 16m @ 0.38% Cu and 19.4g/t Ag from 121m downhole
- MSRC022: 7m @ 0.19% Cu from 87m downhole
- MSRC011: 7m @ 0.12% Cu from 21m downhole
- MSRC012 mineralisation contained significant base metal and silver including:
- 5m @ 27.6 g/t Ag, 0.25% Pb and 0.15% Zn with 148 ppm Mo from 107m, and
- 14m @ 21.5 g/t Ag, 0.18% Pb and 0.1% Zn with 274ppm Mo from 122m
- Copper Ridge CRRC008 returned:
- 4m @ 0.91% Cu from 13m
- Including 2m @ 1.67% Cu
- A 3,400m RC drill program has commenced at Minnie Springs, with deeper diamond drilling planned for June.
- Extensive soil sampling program commenced, representing the first systematic exploration over large parts of the mineralised Ti-Tree and adjacent Minga Bar Shears
- Soil program to target both base metal-gold and lithium prospective Leake Spring Metamorphics as well as extensions to the Minnie Springs porphyry style copper- molybdenum trend.
- Cash position of $4.55m as of 31 March
During the period Augustus received the drill results from the Ti-Tree project’s maiden reverse circulation (RC) drilling program completed last quarter. The program was designed primarily to test six advanced targets where existing soil and/or rock chip anomalies had been generated.
Augustus has continued to advance its mineral exploration ground efforts within the Ti-Tree Project with a regional soil sampling program commencing in March and a second RC drilling program commencing in early April at the Minnie Springs Cu-Mo-Ag porphyry prospect.
Drilling Activities
The Ti-Tree project covers some 3,600km2 and overlies 85kms of strike of the Ti-Tree Shear which is known to host a significant number of mineral occurrences in the region. The project area also contains >20kms of strike of the Money Intrusion, where Dreadnought Resources (ASX:DRE) has recently discovered significant Ni-Cu-PGE mineralisation1 .
Assay results from late last quarter’s drilling which comprised 78 holes totalling 9,086m of Reverse Circulation (RC) drilling were received in the March quarter2.
The primary focus of this drill program was to target significant mineralised zones defined by surface exploration completed across the 6 prospect areas of Minnie Springs, Coo Creek, Nick’s Bore, Copper Ridge, Crawford Bore and Crawford South (Figure 1).
Figure 1. Map of Crawford area and Minnie Springs, key drilling targets
Significant assays with >1m width at >0.1%Cu are shown in Table 1 below. Intervals marked * contain composite samples (nominal 4m).
This article includes content from Augustus Minerals, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Quarterly Report – Activities for Quarter Ended 31 March 2024
HIGHLIGHTS:
Lyndon Uranium/Lithium/REE
- New Rock chip assay results up to 6,612ppm U3O8 at the Baltic Bore and Jailor Bore prospects
- 12 rock chips returned assays >1,000ppm U3O8
- 5 rock chips returned assays >1,000ppm V2O5
- Uranium anomalism spans strike lengths of 2.6km at Baltic Bore and 2km at Jailor Bore
- Lyndon Project Immediately adjoins Paladin Energy’s Carley Bore Uranium Project (15.6MLbs U3O8)
Relief Well Uranium Project (Lyndon):
- Relief Well Uranium Prospect immediately adjoins Paladin Energy’s Carley Bore Uranium Project
- (15.6MLbs U3O8 announced resource)1
- Extensive 8km long palaeochannel confirmed at Relief Well, prospective for roll-front style uranium mineralisation
- Drill planning underway for testing of roll-front uranium mineralisation at Relief Well
Gascoyne East:
- Completion of lithological and structural interpretation from geophysical datasets
- PoW approval for Phase 1 aircore drilling to assist bedrock mapping
- Geophysical interpretation has confirmed drill targets for:
- Intrusion-related porphyry and Iron Oxide Copper-Gold (IOCG) mineralisation
- Magmatic Ni-Cu-PGE mineralisation within a distinct layered mafic intrusion
- Orogenic and intrusion-related gold mineralisation within the Dalgaringa Supersuite and Camel Hills Metamorphics.
- Intrusion-related gold and base metal deposits within the Edmund Basin
- Sedimentary-hosted base metal deposits in the Edmund Basin analogous to the Abra deposit
- At-surface uranium targets identified through airborne radiometric survey data
Odessa’s Executive Director, David Lenigas, commented:
“It’s been a very active and successful exploration period for Odessa in the Gascoyne this past quarter, having identified very significant uranium prospects emerging at Lyndon returning some exceptional grades up to 6,600 ppm U3O8. Our exploration priorities in the Gascoyne are now swayed towards accelerating our uranium targeting at Lyndon and readying the uranium prospects for drilling later this quarter if possible. We are also excited with what we are seeing now at Gascoyne East with the detailed interpretation of the airborne survey highlight excellent gold copper and uranium targets. Detailed planning for air-core and RC drilling is now well underway and should also start later this quarter or early next quarter.”
Figure 1: Odessa Minerals regional Gascoyne Project location map overlain with Geological Survey WA Minedex Occurrences.
Lyndon Uranium/Lithium/REE Project
Lyndon Project Overview
The Lyndon Project is located on the margin of the Carnarvon Basin and Gascoyne Complex approximately 200km south of Onslow and 200km NE of Carnarvon, in Western Australia. The project consists of over 1,000km2 of exploration licenses and applications.
Click here for the full ASX Release
This article includes content from Odessa Minerals, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Maiden Exploration to Commence at Summit’s Brazilian Niobium Projects
HIGHLIGHTS
- Summit to commence a systematic exploration program at its 100% owned Ecuador and Juazerinho Niobium projects aimed at defining initial priority drill targets.
- Due diligence completed by Summit has highlighted the presence of prospective LCT pegmatites at Ecuador, which have seen prior informal mining and extraction of Niobium / Tantalite mineralization from with these LCT pegmatites.
- Previous surface sampling results included1:
JUAZERINHO ASSAYS (Niobium & REE)
- 355,400ppm or 35.54% (Na2O5) + 14,080ppm pREO or 1.408% PREO (SID 099/24)
- 107,010ppm or 10.7% (Na2O5) + 142,080ppm pREO or 14.208% PREO (SID 098/24)
ECUADOR ASSAYS (Niobium + REE)
- 303,400ppm or 30.34% (Na2O5) + 15,130ppm pREO or 1.513% PREO. (SID 100/24)
- Exploration will include focused geological mapping, outcrop & sub crop channel sampling, trenching, and pitting (where appropriate).
- In parallel with the ground-based exploration activities the company is planning an orientation high resolution UAV (drone) magnetics survey aimed at defining signatures associated with known mineralization which, in conjunction with the mapping and geochemical results can be used to focus in on initial targets for drill testing.
- An experienced, locally based Brazilian geological team will commence on-site exploration activities and initiate the necessary drill permitting processes immediately.
Figure 1 - Location and of the Equador and Juazeirinho Project (Summit 100%)
Exploration Program
The geological due diligence completed by Summit highlighted the presence of prospective LCT pegmatites at Ecuador, some of which have seen prior exploitation of Niobium / Tantalite mineralization associated with these LCT pegmatites.
This week, Summit is deploying an experienced in country geological team to commence a systematic exploration program focused on the Ecuador Niobium and REE project. This early exploration phase will include detailed geological mapping, outcrop sampling, channel sampling and where appropriate trenching and pitting.
In parallel with the ground-based exploration activities the company is planning to perform an orientation high resolution UAV (drone) magnetics survey aimed at defining signatures associated with known mineralization. Data gained from these activities will inform preliminary drill targeting.
Regular updates on the exploration program’s progress and results will be provided to the market.
Click here for the full ASX Release
This article includes content from Summit Minerals Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
IND Establishes HPQ Exploration Target at Pippingarra Project
Highlights
- IND’s recent RC drilling program informs a Maiden High Purity Quartz (HPQ) Exploration Target at the Pippingarra Quarry Project.
- Drilling is planned for the exploration target area and to test several quartz occurrences mapped across the wider Mining Lease area.
- IND plans to commence work on a HPQ Mineral Resource Estimate in parallel with metallurgical testwork being conducted by potential offtake partners and third-party mineral processing laboratories.
- A 300kg Pippingarra quartz sample crushed from existing quarry stockpiles sent to China in late 2023 produced a >GG.GG4% SiO2 end product following standard HPQ processing1.
- A further 24 tonne bulk sample comprising crushed quartz rock has been shipped to China for processing, metallurgical test work, and assessment by potential offtake partners.
Figure 1: IND Pippingarra Quarry Project location and infrastructure.
In October 2023, IND announced the agreement of binding terms2 with North West Quarries Pty Ltd (NWQ) for an exclusive option to acquire an 80% interest in the non-construction material mineral rights.
Jeff Sweet, Managing Director of Industrial Minerals, commented:
“Following on from one of our potential offtake partners in China achieving a processed High Purity Ǫuartz product grading >SS.SS4% SiO2, we are extremely positive about the potential to supply Pippingarra quartz into high-end quartz markets.
“The Pippingarra Exploration Target is limited to an area where IND completed RC drilling in late 2023, to the east of the existing open pit. There are several quartz outcrops mapped across the broader Mining Lease area that will also be drilled with the intention to include these untested HPǪ target opportunities in the upcoming Mineral Resource Estimate (MRE) for Pippingarra.
“Our motivation to commence work towards a MRE is to leverage our unique position of having an active mining operation at the Pippingarra Ǫuarry. We believe this will give potential offtake partners the confidence to enter into offtake agreements with IND, knowing that we can rapidly advance to be mine ready and have a suitable mine life to support long term supply needs.”
Maiden High Purity Quartz Exploration Target
Table 1: Pippingarra HPQ Exploration Target range.
The potential quantity and grade of the Exploration Target is conceptual in nature, and there has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource. The Exploration Target has been prepared and reported in accordance with the 2012 edition of the JORC Code.
The Exploration Target is based upon the Reverse Circulation (RC) Drilling program completed by IND in December 2023. Drilling was conducted on a 50m x 50m spacing. From this, holes INRC003 – INRC009 recorded thicknesses of white crystalline quartz over widths from 12m to 20m as reported in the Table 2 below.
Click here for the full ASX Release
This article includes content from Industrial Minerals Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.