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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Progress report on geologic studies of the Ranger orebodies, Northern Territory, Australia: USGS Open-File Report 82-936

Progress report on geologic studies of the Ranger orebodies, Northern Territory, Australia: USGS Open-File Report 82-936

Nash, J. T.
Frishman, David

Paperback

General Political Science

ISBN10: 1288889895
ISBN13: 9781288889891
Publisher: Bibliogov
Published: Mar 8 2013
Pages: 34
Weight: 0.18
Height: 0.07 Width: 7.44 Depth: 9.69
Language: English

The Ranger No. 1 and No. 3 orebodies contain about 124,000 tonnes U3O8 in highly chloritized metasediments of the lower Proterozoic Cahill Formation within about 500 m of the projected sub-Kombolgie Formation unconformity. In both orebodies, oxidized and reduced uranium minerals occur chiefly in quartzose schists that have highly variable amounts of muscovite, sericite, and chlorite. The effects of several periods of alteration are pervasive in the vicinity of orebodies where biotite and garnet are altered to chlorite, and feldspars to white mica or chlorite. Oxidized uranium minerals, associated with earthy iron oxides, occur from the surface to a depth of about 60 m. Below the oxidized zone, uranium occurs chiefly as uraninite and pitchblende disseminated through thick sections of quartz-chlorite-muscovite schist and has no apparent association with graphite or sulfides. In fact, graphite is rare and sulfides are generally low in abundance (

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