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dc.contributor.authorAdams, Den_US
dc.date.accessioned2020-02-05T22:58:22Z-
dc.date.issued2013en_US
dc.identifier.govdocCR2013-0029en_US
dc.identifier.urihttps://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/89819-
dc.description.abstractEL 22957 was held by Tennant Creek Gold (NT) Pty Ltd until it was acquired by WDR Gold Pty Ltd (a wholly owned subsidiary of Western Desert Resources Ltd) in July 2007. The tenement surrounds the historic Spring Hill gold mining centre. In mid-2011, WDR entered a JV agreement with TM Gold (a wholly owned subsidiary of Thor Mining PLC).(WDR Gold 75%, TM Gold 25%). The exploration licence is underlain by sediments of the South Alligator Group and the Finniss Group of Palaeoproterozoic age. These rocks have been folded along NW trending axes and the folds are tight to isoclinal. A major anticline, the Spring Hill Anticline, occurs in the project area and plunges to the south. The Pine Creek Shear, a regional NW trending structure, trends through the eastern part of the tenement. Gold and tin mineralisation occurs within the project area. Gold was discovered in the area in the 1870's. Mining activities at Spring Hill took place between 1880 and 1905, and then intermittently until 1966. Total recorded production was about 22,000 ounces of gold which was mainly derived before 1900. Mining mainly took place on the Main and Middle lodes with the oxidised ore being worked to depths in excess of 100m. Old Tin workings can be found at the Horseshoe, Jimmys Knob, Teacup and Mundic prospects north of Spring Hill. Tin was discovered at the Jimmys Knob mine in the late 1880's. A considerable amount of underground development was undertaken until 1909. It appears that several tons of tin concentrate were probably produced, however no records exist for the period. The mine was reopened in 1964-68 and in 1977 with production of about 1.4t of tin concentrate. Previous exploration in the area has been for gold. Although systematic modern exploration has been carried out in the tenement area, no significant discoveries have been made. Western Desert Resources Ltd carried out an airborne EM survey over the tenement during 2008. Preliminary interpretation of the airborne EM data shows that an anomalous conductive zone occurs within Koolpin Formation rocks in the NW portion of the EL. It is possible that the anomaly could be related to carbonaceous and pyritic sediments. During the reporting period, Thor Mining PLC. Has mainly focused on drilling on the Spring Hill ML (ML 23812), but has begun a significant re-interpretation and sorting of the Geophysical data available. Target generation from the 'Horseshoe prospect' projected underneath Spring Hill itself in the Koolpin formation.en_US
dc.subject.classificationPrecious metalsen_US
dc.subject.classificationGolden_US
dc.subject.classificationBase metalsen_US
dc.subject.classificationGeologyen_US
dc.subject.classificationRegional geologyen_US
dc.subject.classificationLocal geologyen_US
dc.subject.classificationPrevious explorationen_US
dc.subject.classificationMining historyen_US
dc.subject.classificationGeophysical surveysen_US
dc.subject.classificationGeophysical dataen_US
dc.subject.classificationAerial geophysical surveysen_US
dc.subject.classificationHelimagnetic surveyen_US
dc.titleAnnual Report EL 22957 Spring Hill for the period 13 January 2012 to 12 January 2013en_US
dc.relation.isatmap100Pine Creek 5270en_US
dc.relation.isatmap250Pine Creek SD5208en_US
dc.relation.isatgeolprovincePine Creek Orogenen_US
dc.description.stratnameMount Bonnie Formationen_US
dc.description.stratnameSouth Alligator Groupen_US
dc.description.stratnameFinniss River Groupen_US
dc.description.stratnameKoolpin Formationen_US
dc.description.stratnameZamu Doleriteen_US
dc.description.mineprospectnameSpring Hillen_US
dc.identifier.tenureEL22957en_US
dc.description.modifyhistory11/03/2013en_US
dc.description.modifyhistory04/02/2020en_US
dc.description.modifyhistory21/12/2020en_US
dc.description.modifyhistory07/01/2021en_US
dc.contributor.holderWDR Golden_US
dc.contributor.holderTM Golden_US
dc.contributor.holderThor Miningen_US
dc.identifier.collectionnameMinerals Exploration Reports (MEX)
dc.identifier.govdocprefixCR2013
local.flag.notified1
Appears in Collections:Minerals Exploration Reports (MEX)

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