Honeymoon Uranium Project. Yarramba Palaeovalley structure and fill geological modelling: deposit brownfields appraisal drilling and downhole geophysical logging. Final Report, Project ADI RD01-100 [part of Accelerated Discovery Initiative Round 1, 2022]
Published: 26 Apr 1922 Created: 12 Nov 2024 Revised: 12 Nov 2024

Ongoing exploration presently being conducted in the vicinity of the Honeymoon uranium deposit aims to define and characterise extensions to the Honeymoon resource contained within Mining Lease 6109, by testing target areas located just beyond the...

Ongoing exploration presently being conducted in the vicinity of the Honeymoon uranium deposit aims to define and characterise extensions to the Honeymoon resource contained within Mining Lease 6109, by testing target areas located just beyond the lease boundaries, and to develop mineralisation models and apply them to exploration for additional deposits within other sections of the Tertiary-aged Yarramba Palaeochannel. A campaign of appraisal drilling has recently been conducted by project licensee Boss Energy with the assistance of co-funding provided by the SA Government through its Accelerated Discovery Initiative (ADI). The locations for drilling were chosen mostly based on the tenor of recorded historical uranium exploration drilling results obtained by previous explorers, but also sought to intersect redox boundaries which might exist in places where complex pre-Tertiary basement palaeotopography might have led to favourable constricted fluvial depositional conditions, as lately indicated by interpreted airborne EM and passive seismic survey data. A first phase of drilling was performed between 10th November to 9th December 2021, with 37 vertical rotary mud holes (18 on EL 6510, and 19 on EL 6081) completed for a total of 4448 m, at the Brooks Dam Extension (BDE), Brooks Dam North (BDN) and Jason’s South (JSS) prospects. Downhole geophysical logging of lithologies was performed on all holes by contractor Borehole Wireline using the following suite of calibrated tools: • Dual Laterolog / Gamma / MDEV stacked tool (DLL3). • Dual Induction / Gamma (EM50). • Formation Density / 3-arm Caliper (FDSC) • Neutron Porosity (DNNS) • Fullwave Sonic (FWS) – only on some holes. PFN logging of each drill hole was also carried out using the Boss Energy in-house logging truck and PFN tools. A second phase of exploratory drilling, comprising 20 vertical rotary mud holes for 2328 m (4 on EL 6510, and 16 on EL 6081), was undertaken in April 2022, and was done primarily at the Lawlor East (LWE), Brooks Dam Extension (BDE) and Eaglehawk Dam (EHD) prospects. 30 of the 37 Phase 1 holes drilled at BDN and JSS made many narrow mineralised intercepts, but with logged uranium grades that generally are less than what was reported historically. Significantly, though, these intercepts appear to be continuous along the channel and are not yet closed off. The Phase 2 drilling proved to be more successful, identifying an extension of potentially economic moderate to high grade uranium mineralisation at several levels within the Eyre Formation channel fill in the BDE prospect area lying immediately north of the Honeymoon mine. 6 of 8 holes drilled there gave logged grade thickness values exceeding 1000 m.ppm. However, the drilling results obtained some distance further afield at the LWE and EHD prospects were disappointing overall, although the geological setting encountered, particularly at the latter prospect, suggests future scout drilling needs to focus further to the west, where deeper erosive weathering of the basement may occur as indicated by passive seismic survey data.

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About this record

Record No mesac29856
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Exploration Initiative - Collaborative Exploration
Contributor Borehole Wireline Pty Ltd
Sponsor Boss Energy Ltd
Tenement
Tenement Holder Boss Uranium Pty Ltd
Operator Boss Energy Ltd
Geological Province Lake Eyre Basin
Mine Name Honeymoon mine
Stratigraphy Eyre Formation
Commodity uranium
Notes
Notes: The Honeymoon Project was previously owned by Uranium One, and was purchased by Boss Energy Limited (renamed from Boss Resources Limited in 2020) in November 2015.
Geographic Locality: Honeymoon Well;Yarramba Palaeochannel;Yarramba...

Notes: The Honeymoon Project was previously owned by Uranium One, and was purchased by Boss Energy Limited (renamed from Boss Resources Limited in 2020) in November 2015. Geographic Locality: Honeymoon Well;Yarramba Palaeochannel;Yarramba Palaeovalley Doc No: Env 13334 Drillhole: BMR129 - BMR148;(370827 - 370846)

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Language English
Metadata Standard ISO 19115-3

Citations

Use constraints License
License Creative Commons Attribution 4.0
Persistent identifier https://pid.sarig.sa.gov.au/document/mesac29856
Citation Cherry, J. 1922. Honeymoon Uranium Project. Yarramba Palaeovalley structure and fill geological modelling: deposit brownfields appraisal drilling and downhole geophysical logging. Final Report, Project ADI RD01-100 [part of Accelerated Discovery Initiative Round 1, 2022]. Exploration Initiative - Collaborative Exploration
https://pid.sarig.sa.gov.au/document/mesac29856

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[140.5,-32],[141,-32],[141,-31.5],[140.5,-31.5],[140.5,-32]]]}
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