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dc.contributor.authorJohnstone, Aen_US
dc.date.accessioned2017-05-30T23:21:34Z-
dc.date.issued2006en_US
dc.identifier.govdocCR2006-0567en_US
dc.identifier.urihttps://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/85357en_US
dc.description.abstractThis report summarises work carried out on Exploration License 23619, Litchfield Project, Northern Territory for the year ended 21st October 2005. Through compilation efforts, Falconbridge (Australia) Pty Limited identified the Litchfield/Batchlor area of the Northern Territory as being favourable to host Proterozoic, intrusive related, magmatic Ni-Cu-PGE sulphide mineralization, such as Thompson or Voiseys Bay in Canada. The area has seen little historic work and has not been the focus of dedicated nickel sulphide exploration in recent years. In December 2003, Discovery Nickel Limited acquired 100% interest in EL23619 and other Falconbridge tenements following the successful listing of Discovery Nickel on the Australian Stock Exchange. The tenement area lies in the western parts of the Pine Creek Inlier (Litchfield Province) and is considered to have excellent potential for magmatic Cu-Ni mineralisation related to the Proterozoic Wangi Basics. The Litchfield Province is the continuation of the prospective Halls Creek Province of the Kimberley's, a known significant magmatic Cu-Ni province (e.g. Sally Malay Deposit). Most significant nickel-copper massive sulphide deposits are extremely good conductors. Discovery Nickel's exploration approach relies heavily on airborne electromagnetic (AEM) surveying, followed up by ground EM to define targets. The review and interpretation work confirmed the high prospectively of the tenement area for magmatic Cu-Ni mineralization related to the Wangi Basics, and that there are undercover extensions to the mafic/ultramafic rocks along strike from the known occurrences. In follow-up an airborne EM survey GEOTEM was completed during September 2004. The survey covered the known intrusions of Wangi basics and structural corridor that contains them. Interpretation of the GEOTEM data has reviled a number of conductors coincident with the Wangi basics. Follow up ground EM was completed and interpretation and modelling defined two targets warranting drill testing. In November 2006 Titeline Drilling collared two diamond holes, in both cases conductive sulphidic sediments were intersected but with on evidence of economic metals specifically Nickel. The results are however encouraging, as such stratigraphiy is an excellent sulphur source and commonly intersected in WA near or adjacent to know mafic hosted Ni resources. Magnetics over the area show mafic (Wangi basics) are present, and more work is required to asses how they interact with the sulphidic sediments and what their geochemical signature is revieling. Exploration work completed to date includes: review and compilation of open file reports, published literature and data; interpretation of the aeromagnetic, gravity and landsat data; designing the boundaries of a Geotem Survey; Commission of GEOTEMTM survey (late last period); Interpretation of GEOTEMTM data; Collection of Detailed Ground EM (Smartem); Interpretation of Ground EM data; and Targeting and drilling of two EM anomalies.en_US
dc.subject.classificationBase metalsen_US
dc.subject.classificationCopperen_US
dc.subject.classificationNickelen_US
dc.subject.classificationPrecious metalsen_US
dc.subject.classificationGeological settingen_US
dc.subject.classificationExploration historyen_US
dc.subject.classificationExploration rationaleen_US
dc.subject.classificationLiterature reviewsen_US
dc.subject.classificationGeophysical surveysen_US
dc.subject.classificationAerial geophysical surveysen_US
dc.subject.classificationAerial EM surveysen_US
dc.subject.classificationGround EM surveysen_US
dc.subject.classificationEM interpretationen_US
dc.subject.classificationEM profilesen_US
dc.subject.classificationDrillingen_US
dc.subject.classificationDiamond drillingen_US
dc.subject.classificationDrill collarsen_US
dc.subject.classificationDrill hole logsen_US
dc.subject.classificationDrill core samplingen_US
dc.subject.classificationAssayingen_US
dc.subject.classificationAssay valueen_US
dc.titleAnnual report EL 23619 Litchfield Project for the year ended 21 October 2006en_US
dc.relation.isatmap100Reynolds River 5071en_US
dc.relation.isatmap250Pine Creek SD5208en_US
dc.relation.isatgeolprovincePine Creek Orogenen_US
dc.description.stratnameWangi Basicsen_US
dc.description.geochemicalsamplingDownhole assaysen_US
dc.description.drilling2 Diamond holes for 450 m (DNL_L_1_05, DNL_L_2_05)en_US
dc.identifier.tenureEL23619en_US
dc.description.publicnotesAdditional geophysics datasets are available on request.en_US
dc.description.modifyhistory31/01/2007en_US
dc.description.modifyhistory02/12/2016en_US
dc.description.modifyhistory31/05/2017en_US
dc.contributor.holderDiscovery Nickelen_US
dc.identifier.collectionnameMinerals Exploration Reports (MEX)en_US
dc.identifier.govdocprefixCR2006en_US
local.flag.notified1
Appears in Collections:Minerals Exploration Reports (MEX)

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