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dc.contributor.authorPellatt, A
dc.contributor.authorFulton, R
dc.description.abstractML 27244 forms part of the Wonarah Phosphate Project (along with EL 9979, EL 26584, EL 26585, EL 26586, EL 24607, EL 26185, EL8233, EL 26451 and EL 26452), and is located approximately 240km east-southeast of Tennant Creek. Minemakers Australia Pty Ltd is seeking to develop a large sedimentary phosphate deposit within the Georgina Basin. The model for phosphate deposition requires upwelling, cold phosphate-saturated water depositing phosphate into a restricted environment on the continental shelf where the postulated required narrow pH range is locally present. Post-depositional reworking and replacement of carbonate facies by phosphatic mineralisation is probably an important factor in upgrading phosphorite grades to economic levels. The project area has two principal areas of exploration focus; Main Zone and Arruwurra. The geology of the Main Zone comprises basement granite of Palaeoproterozoic age, unconformably overlain by basalt of the Helen Springs Volcanics. The volcanics are unconformably overlain by dolomitic rocks of the Thorntonia Limestone equivalent in part. The overlying phosphate-bearing Upper Gum Ridge Formation is divided locally into five main units; the Transitional Phosphorite, the Transition Sediments, the Chert Breccia Phosphorite, the Mudstone Phosphorite (main phosphate bearing unit) and the Convolute Mudstone. The Wonarah Formation overlies the Upper Gum Ridge Formation and consists of mudstone, siltstone and sandstone. The geology of Arruwurra is essentially similar with some minor differences. A diamond drilling program of 15 holes for 505.7m was conducted to recover core for metallurgical testing as part of a new feasibility study into beneficiation of phosphate rock. Test work is ongoing under the supervision of Kwan Wong using metallurgical test work facilities at the University of South Australia. Test work planning and control is being provided by KEMworks, Florida, USA. A report on the test work will be submitted when it is completed. Pit shell optimisation work was commenced by AMC Consultants. An updated mineral resource estimation for the project was completed and a Measured Resource was defined for the first time. The total resource for both Main Zone and Arruwurra now totals 842 Mt at 18% P2O5 (10% P2O5 % cut-off) including a Measured Resource of 78.3 Mt at 20.8% P2O5. The resource lies mostly within ML 27244 but extends onto adjacent Minemakers' tenements.
dc.subject.classificationPhosphate rock
dc.subject.classificationPhosphate deposits
dc.subject.classificationRegional geology
dc.subject.classificationPrevious exploration
dc.subject.classificationDiamond drilling
dc.subject.classificationDrill collars
dc.subject.classificationDrill hole logs
dc.subject.classificationDrill hole data
dc.subject.classificationGeochemical sampling
dc.subject.classificationDrill cuttings sampling
dc.subject.classificationAssay value
dc.subject.classificationMetallurgical testing
dc.subject.classificationFeasibility studies
dc.subject.classificationMineral resources
dc.subject.classificationMeasured mineral resources
dc.subject.classificationIndicated mineral resources
dc.subject.classificationInferred mineral resources
dc.titleAnnual Report for ML 27244 Wonarah Mineral Lease for the period ending 17 February 2013
dc.relation.isatmap100Wonarah 6158
dc.relation.isatmap100Joildung 6157
dc.relation.isatmap100Ranken 6258
dc.relation.isatmap100Barry Caves 6257
dc.relation.isatmap250Alroy SE5315
dc.relation.isatmap250Frew River SF5303
dc.relation.isatmap250Ranken SE5316
dc.relation.isatmap250Avon Downs SF5304
dc.relation.isatgeolprovinceGeorgina Basin
dc.description.stratnameHelen Springs Volcanics
dc.description.stratnameThorntonia Limestone
dc.description.stratnameGum Ridge Formation
dc.description.geochemicalsampling191 Drill samples
dc.description.drilling15 Diamond holes for 505.7 m (WNDD098, WNDD099, WNDD100, WNDD101, WNDD102, WNDD103, WNDD104, WNDD105, WNDD106, WNDD107, WNDD108, WNDD109, WNDD110, WNDD111, WNDD112)
dc.description.mineprospectnameMain Zone
dc.contributor.holderMinemakers Australia
dc.identifier.collectionnameMinerals Exploration Reports (MEX)
Appears in Collections:Minerals Exploration Reports (MEX)

Files in this Report:
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ML27244_2013_A_01.pdf1.39 MBPDF Add
ML27244_2013_A_02_Appendix1.pdf2.29 MBPDF Add
ML27244_2013_A_03_COLL2013A.txt2.77 kBText Add
ML27244_2013_A_04_ASS2013A.txt17.07 kBText Add
ML27244_2013_A_05_GEO2013A.txt31.21 kBText Add
ML27244_2013_A_06_LOGCODES2013A.txt7.47 kBText Add
ML27244_2013_A_07_VERIFICATIONLIST2013A.txt1.26 kBText Add

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