To all
geological enterprises, educational institutions, research institutes and other
bodies and persons who may be concerned in studying ore deposits of
sedimentary origin.
Г 61
ISBN 5-93823-001-2
Introductory Remarks characterize the significance of
the problem under consideration in the national economy of the country.
State of the Theory of manganese ore genesis is estimated
in a chronological sequence of the viewpoints on the main factors of manganese
ore process: transgression – surface flow – diagenesis
– volcanism – upwelling.
Working Hypothesis explains the genesis of manganese ores at the
expense of oxidation of Mn-containing sulphide waters in the initial basin during its regression
and unloading via shallow channels into the nearest noncompensated
depression or a trough of more recent tectonic formation. Such a pattern of
ore deposition eliminates the problem of metal sources and solves all other
issues of manganese genesis. In the process of substantiation of hypothesis it
has been unexpectedly found that aluminum is the first to be deposited from sulphide solutions of ore elements at the early oxidation
stage.
Prospecting Criteria given in the paper serve as an
efficient tool for predicting new manganese and bauxite deposits. Two of the
most intricate problems in ore geology turn to be among simple, understandable
and regular processes of natural evolution of continental basin waters, and
manganese and aluminum ore deposits among the most predictable ones.
Prognosis of manganese and bauxite deposits in
particular areas of the Cis-Ural and
Next Problems to be Solved include about 30 issues that open a
wide field for the most promising research in sedimentary geology.
Conclusion соntains a statement of the principle implications
of the paper.