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dc.contributor.authorMackie, AWen_US
dc.date.accessioned2016-12-20T06:21:01Z-
dc.date.issued2003en_US
dc.identifier.govdocCR2004-0104en_US
dc.identifier.urihttps://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/83879en_US
dc.description.abstractThe 2003 Strangways Project exploration program concentrated on the Bleechmore Vermiculite Project and particularly the evaluation of the Dykes North prospect, within EL 22446. Work included ground geophysical surveys, airborne hyperspectral TM scanning, bedrock vacuum drilling, costeaning, Aircore, RAB and Diamond drilling. A potentially commercial vermiculite resource 380 m long by 40 m wide by 50 m deep was delineated underlying a thin soil and colluvium-covered flood plain. A total of 235 Aircore and RAB drill spoil samples were Particle Size Distribution (PSD) tested by screening to determine vermiculite flake size distribution. PSD testing showed only 12.4 weight percent of the >40% vermiculite flake samples exceeded a particle size of greater than 1.0 mm which is considerably less than the expected commercial benchmark for viable vermiculite deposits of at least 30 wt% of greater than 1.0mm flake size. Optical flake size estimation by Pontifex of one 30 mm piece of vermiculite (>70%) carbonatite aircore gives different PSD results to those over a larger intersection i.e. 60% of vermiculite flakes are greater than 1.0 mm. Work in progress by Amdel on the disaggregation of vermiculite (>70%) carbonatite drillcore suitable for PSD testing by screening will hopefully counteract the comminution effects of abrasive drill bits on fragile vermiculite flakes and provide a more reliable measure of the current resource?s potentially commercial vermiculite flake size. The exploration potential for additional vermiculite is excellent in the Bleechmore Project area and also on a regional basis. An elliptical 15 km x 5 km potassium depletion zone is apparent on the Alcoota Regional 400 metre line space radiometrics located about 5 km west of the Bleechmore Dyke prospects. A similar potassium depletion zone exists around the Mud Tank carbonatite 19km to the south southeast. The abovementioned depletion zone may be indicative of a large alkaline intrusive or carbonatite containing significant rare earths, vermiculite and basemetals. Observation of 12 heavy mineral concentrate samples resulted in two positive kimberlitic indicator results in the Muller Dam area of EL 22443. Followup drainage samples were taken and results are pending. Multiple occurrences of gahnite (zinc spinel) also observed in the above samples have delineated a zone of interest for base metal mineralisation over a sample length of some 20 km commencing from near Pinnacles Bore and trending to the northwest. The project area includes a number of other basemetal/gold prospects, namely Edwards Creek and Utnalanama Zn-Cu-Au metamorphosed VMS deposits and also the Johnnies Reward Cu-Au (iron oxide) metamorphogenic skarn deposit.en_US
dc.subject.classificationVermiculiteen_US
dc.subject.classificationDiamondsen_US
dc.subject.classificationIndicator mineralsen_US
dc.subject.classificationKimberliteen_US
dc.subject.classificationHeavy mineral samplingen_US
dc.subject.classificationNative titleen_US
dc.subject.classificationExploration historyen_US
dc.subject.classificationGeophysical surveysen_US
dc.subject.classificationGravity surveysen_US
dc.subject.classificationGround magnetic surveysen_US
dc.subject.classificationAerial geophysical surveysen_US
dc.subject.classificationAerial Hyperspectral surveyen_US
dc.subject.classificationDrillingen_US
dc.subject.classificationRAB drillingen_US
dc.subject.classificationAircore drillingen_US
dc.subject.classificationVacuum drillingen_US
dc.subject.classificationDiamond drillingen_US
dc.subject.classificationCosteaningen_US
dc.subject.classificationQuartzen_US
dc.subject.classificationFeldsparsen_US
dc.subject.classificationGarneten_US
dc.subject.classificationPetrologyen_US
dc.subject.classificationGeomorphologyen_US
dc.subject.classificationGeomorphic mapsen_US
dc.subject.classificationDrainage samplingen_US
dc.titleStrangways Project EL 10364 Mud Tank, EL 22443 Strangways, EL 22446 Alcoota, EL 22623 Phlogopite and EL 23592 Jonnies Reward, Second combined annual report for the period 20 December 2002 to 19 December 2003en_US
dc.relation.isatmap100Burt 5651en_US
dc.relation.isatmap100Laughlen 5751en_US
dc.relation.isatmap100Alcoota 5752en_US
dc.relation.isatmap100Bushy Park 5652en_US
dc.relation.isatmap250Alice Springs SF5314en_US
dc.relation.isatmap250Alcoota SF5310en_US
dc.relation.isatgeolprovinceArunta Provinceen_US
dc.description.stratnameErontonga Metamorphics, Strangways Metamorphic Complex, Gum Tree Granite, Oolbra Orthogneiss, Mud Tank Carbonatiteen_US
dc.description.geochemicalsampling5 Costeans for 441 men_US
dc.description.geochemicalsampling131 Vacuum drill chip samples takenen_US
dc.description.geochemicalsampling850 RAB/Aircore drill chip samples takenen_US
dc.description.drilling2 Diamond holes for 162 m (BDD001, BDD002)en_US
dc.description.drilling17 RAB holesen_US
dc.description.drilling22 Aircore holesen_US
dc.description.drilling135 Vacuum holes for 1,056 men_US
dc.description.mineprospectnameDykes Northen_US
dc.identifier.tenureEL10364en_US
dc.identifier.tenureEL22443en_US
dc.identifier.tenureEL22446en_US
dc.identifier.tenureEL22623en_US
dc.identifier.tenureEL23592en_US
dc.description.modifyhistory07/02/2005en_US
dc.contributor.holderFlinders Diamondsen_US
dc.identifier.collectionnameMinerals Exploration Reports (MEX)en_US
dc.identifier.govdocprefixCR2004en_US
local.flag.notified1
Appears in Collections:Minerals Exploration Reports (MEX)

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