CUP-SHAPED STRUCTURES OF IRON-ORE DEPOSITS IN THE SOUTH OF THE SIBERIAN PLATFORM (RUSSIA)

被引:0
|
作者
VONDERFLAASS, GS [1 ]
NAUMOV, VA [1 ]
机构
[1] IRKUTSK STATE UNIV,IRKUTSK 664003,RUSSIA
关键词
D O I
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中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Cup-shaped structures crowning iron-bearing diatremes of the Angara iron ore province are described. Structural geometry and problems of ''cup'' genesis, physical-chemical conditions and hydrodynamic processes that controlled deposition of the crater-lacustrine successions filling these structures are considered with particular reference to cup ores confined to the base of such successions. The effect of cup-shaped structures upon preservation and evaluation of buried ore deposits is shown.
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页码:340 / 350
页数:11
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