| conc_proc: | Circulating Groundwaters Have Dissolved The Uranium From The Granite And Deposited It As Carnotite In The Calcrete Mantle. It Is Found In Successive Layers Representing A Downward Movement Of The Water Table Over The Years And Is Known Down To A Depth Of 70 Ft. Below The Surface. Some Agency Of Chemical Precipitation That Existed In The Calcrete As The Time Of Deposition May Be Similar To That As Occurred In The Sandstones Of The Colorado Plateau Of The Us. Dal*glio And Others, 1974 , In Their Possible Minerogenetic Processes Of The Yeelirrie Deposit, Show How Along With The Regular Increase In The Salinity, There Is A Corresponding Gradual Change In The Chemical Composition; The Most Soluble Salt Content (Caso4 And Nacl) Gradually Increases; The Uranium Increases; The Hco3 Content Decreases, And Thus A Lower Activity Of Co 2 - Co3 Ion That Forms A Very Stable Complex With The Uranyl Ion. This Uranyl Ion Activity May,Under Particular Conditions, Very Well Reach High Enough Values For The Precipitation Of The Carnotite. |
| References: |
- Deposit:: BROOKS, J. H., 1971 , URANIUM EXPLORATION IN QUEENSLAND, 1967 - 71 : QUEENSLAND GEOLOGICAL SURVEY REPT. 69 , 22 P.
- Deposit:: FERRIS, 1973 (WRITTEN COMM.)
- Deposit:: LLOYD, B. C. J., 1973 , NUCLEAR METALS, IN MINING ANNUAL REVIEW, PUBLISHED AS A SUPPLEMENT TO MINING JOURNAL, P. 89 - 90
- Deposit:: MAZZUCCHELLI, 1974 (ORAL COMM.)
- Deposit:: 5) MINERAL TRADE NOTES, 1973 , V. 70 , NO. 2 , P. 10 , AND 1972 , V. 69 , NO. 4 , P. 23
- Deposit:: 6) LIDDY, J. C., 1972 , URANIUM POTENTIAL OF AUSTRALIA: AUST. MINING 64 NO. 5 , P. 24 - 33 .
- Deposit:: 7) DAL*GLIO, MARIO, GRAGNANI, ROBERTO, AND LOCARDI, ENZO, 1974 , GEOCHEMICAL FACTORS CONTROLLING THE FORMATION OF THE SECONDARY MINERALS OF URANIUM IN SYMPOSIUM, ON THE FORMATION OF URANIUM ORE DEPOSITS, ATHENS, MAY 6 - 10 , 1974 , 16 P., IAEA - SM - 183/21 .
- Deposit:: 8) SANDERS, C. C., 1972 .
- Deposit:: 9) MINING MAGAZINE, 1974 , V. 131 , NO. 1 , P. 11 - 23 .
- Deposit:: 10) VON BACKSTROM, 1974
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