Mulyungarie. Progress reports to licence expiry/renewal for the period 13/5/1972 to 12/5/1973.

Created: 11 Nov 2024 Revised: 11 Nov 2024

Author: Wilpolt, R.H.;Howland-Rose, A.W.;Lee, C.H.;Kightley, G.K.;Wright, A.J.

Ongoing exploration for possible economic sandstone-type uranium deposits formed in Tertiary palaeochannels in the Yarramba area, 50 km north-west of Cockburn, has included further open hole rotary drilling and downhole geophysical logging (176 holes for a total penetration of 68, 232 feet, which included 145'6" of coring carried out in 3 holes that were re-drilled near the recent 580/1 uranium mineral discovery), plus the conduct of IP and ground magnetic surveys. During an initial phase of close-spaced drilling, extensions to the known mineralisation were found occupying a sinuous north-east trending zone along the target palaeochannel, including a high grade intercept made in hole 580/70 at the base of the Tertiary section, but although this mineralisation was found within channel bank sand over a reasonable (10' thick) depth interval, it was limited in width, and was not considered to be an economic proposition. However, during the final quarter of half-mile spaced exploratory drilling activity a more significant pod of uranium mineralisation was discovered in a probable tributary channel entering the main palaeochannel from the south-east. Here one 1' and two 2' thick bands of high grade (90,000 cpm) mineralisation occur over an area of at least 2 square miles, with two apparently differing phases of formation hosted by separate lithologies, both centred around the unconformity between the Tertiary sequence and the weathered Precambrian basement.

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About this record

Record No	mesac14161
Topic	Geoscientific Information
Type of Resource	Document
Category Type	Basement Geology Drilling Engineering Earth Sciences Electrical And Electromagnetic Methods In Geophysics Energy Energy Exploration Engineering Environmental Management Environmental Science And Management Environmental Sciences Exploration Geochemistry Geochemistry Geology Geomatic Engineering Geomorphology And Regolith And Landscape Evolution Geophysics Gravity Hydrogeology Isotope Geochemistry Mineral Exploration Mineral Resource Geology Mineral System Geology Mineralogy And Crystallography Petroleum System Geology Petrology Petrophysics Physical Geography Policy And Administration Primary Mining And Extraction Of Mineral Resources Quaternary Environments Radiometrics Resources Engineering Sedimentary Petrology Sedimentology Soil Science Stratigraphy Surface Geology Surfacewater Hydrology
Document Type	Mineral Company Report - Mineral Exploration
Contributor	Siegel Associates Australasia Pty Ltd;Lucius-Pitkin, Inc., Petrographic-Mineralogical Laboratory;Australian Groundwater Consultants Pty Ltd
Sponsor	Sedimentary Uranium NL
Tenement	SML 696
Tenement Holder	Sedimentary Uranium NL
Operator
Geological Province	Eromanga Basin Frome Embayment Lake Eyre Basin
Mine Name	East Kalkaroo uranium deposit
Stratigraphy
Commodity	Critical minerals Heavy mineral sands uranium
Notes	Notes: Direct continuation of tenure from SML 580 over same areal extent (see Env 1664). Licence has subsequently been renewed, again over the same area, as EL 98 (see Env 2371). Includes: - Howland-Rose, A.W., May 1972. Report on an induced... Notes: Direct continuation of tenure from SML 580 over same areal extent (see Env 1664). Licence has subsequently been renewed, again over the same area, as EL 98 (see Env 2371). Includes: - Howland-Rose, A.W., May 1972. Report on an induced polarisation and gravity test survey conducted on SML 696 Yarramba, South Australia (Siegel Associates Australasia Pty Ltd geophysical consultant's report for Sedimentary Uranium). Appx 2a of SML 696 first quarterly report to 12/8/1972. 42 pages, 3 appx, figures, 2 ref, 6 plans. - Howland-Rose, A.W., May 1972. Report on an induced polarisation survey conducted on SML 580 Yarramba, South Australia (Siegel Associates Australasia Pty Ltd geophysical consultant's report for Sedimentary Uranium). Appx 2b of SML 696 first quarterly report to 12/8/1972. 29 pages, 8 plans. - Dodd, P.H., 24/7/1972. Results and interpretation of core analyses performed on a sample of drill core taken from the depth interval 363.5-364 feet in cored hole 580/1/C1 (United States Atomic Energy Commission contractor's report for Sedimentary Uranium). Appx 3 of SML 696 first quarterly report to 12/8/1972. 12 pages, 1 fig, 1 plate, 3 ref, 4 tables. - Australian Groundwater Consultants Pty Ltd, October 1972. Proposal to Sedimentary Uranium NL for a joint investigation and feasibility study of solution mining techniques for uranium extraction in the Yarramba area, South Australia. Attachment to SML 696 second quarterly report to 12/11/1972; 28 pages, 1 fig, 2 tables. Geographic Locality: Mulyungarie Station;Kalkaroo Dam;Yarramba Palaeochannel;1972 Yarramba Test Gravity Survey Doc No: Env 02043 Drillhole: 580/1/C1;B240/C1;B240/C2;B240/C3 More +
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/mesac14161
Citation	Wilpolt, R.H.;Howland-Rose, A.W.;Lee, C.H.;Kightley, G.K.;Wright, A.J. Mulyungarie. Progress reports to licence expiry/renewal for the period 13/5/1972 to 12/5/1973. Mineral Company Report - Mineral Exploration https://pid.sarig.sa.gov.au/document/mesac14161

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],[140.5,-31],[140.5,-32]]]}
Purpose
Lineage