Surface Formations in the Weathering Crusts of Carbonatites: Implication for the Genesis of Unique Rare Metal Ores in the Tomtor Deposit, Russia

2021 ◽  
Vol 56 (4) ◽  
pp. 356-374
Author(s):  
A. V. Lapin ◽  
I. M. Kulikova ◽  
O. A. Nabelkin
Keyword(s):  
Rare Metal ◽  
Weathering Crusts

scholarly journals Unique Ultra-Rich Rare Metal Ores of the Tomtor Complex and Problem of Their Genesis

2019 ◽  
Vol 5 ◽  
pp. 70-88
Author(s):  
A.V. Lapin ◽  
A.V. Tolstov ◽  
I.M. Kulikova
Keyword(s):  
Mineral Composition ◽  
Rare Metal ◽  
Genetic Models ◽  
Textural Features ◽  
Weathering Crusts ◽  
Geologic Setting

Main genetic models of the formation of ultra-rich rare metal ores of the Tomtor deposit (Yakutia) are compared on the basis of their structural-textural features, mineral composition, and geologic setting: 1) reducing epigenesis of laterite weathering crusts of carbonatites and 2) redeposition of weathering products of carbonatites. It is shown that the unique features of the Tomtor deposit are explained by more complex (compared with other deposits of weathering crusts of carbonatites) evolution, which is expressed in two consecutive stages of supergenesis: laterite weathering and reducing epigenesis and their total ore-concentrating efects. The searching-forecast criteria for ores of the Tomtor type are suggested on the basis of epigenetic model of their formation.

Carboniferous 40Ar/39Ar Age of the Rare-Metal Enriched Rhyolites and Ignimbrites in the Sakmara Allochthon of the Southern Urals

2018 ◽  
Vol 483 (5) ◽  
pp. 529-534
Author(s):  
A. Ryazantsev ◽  
◽  
K. Degtyarev ◽  
A. Pilitsina ◽  
I. Novikov ◽  
...  
Keyword(s):  
Southern Urals ◽  
Rare Metal ◽  
The Southern Urals
Sign in / Sign up

Export Citation Format

Share Document