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Occurrence of Uranium Deposits
Bulletin of the Atomic Scientists, 1950Much of the work done since 1941 on resources of radioactive raw material in the United States has been “classified” until recently. In the following article the Chief Geologist of the U.S. Geological Survey discusses uranium resources, classifying these by geologic types and noting their principal occurrence in various countries of the world.
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1993
The association of uranium mineralization with solid bitumens is widely recorded. Uranium ore-related bitumens are generally the altered residues of crude oils. Even if petroleum cannot be considered either as a source or as a carrier fluid for uranium, spatial relationships between source-rocks or oil fields with uranium deposits are evident ...
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The association of uranium mineralization with solid bitumens is widely recorded. Uranium ore-related bitumens are generally the altered residues of crude oils. Even if petroleum cannot be considered either as a source or as a carrier fluid for uranium, spatial relationships between source-rocks or oil fields with uranium deposits are evident ...
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Classification of uranium deposits
Mineralium Deposita, 1978A listing of the recognized types of uranium mineralization shows nineteen determinable types out of which only six can be classified as of economic significance at present: Oligomictic quartz pebble conglomerates, sandstone types, calcretes, intra-intrusive types, hydrothermal veins, veinlike types.
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1984
The purpose of this section is to review briefly the major geotectonic features of the European continent and their associations in order to present a consistent geological background for the distribution of the different uranium districts in this part of the world.
Valery Ziegler, Jacques Dardel
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The purpose of this section is to review briefly the major geotectonic features of the European continent and their associations in order to present a consistent geological background for the distribution of the different uranium districts in this part of the world.
Valery Ziegler, Jacques Dardel
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1984
Uranium exploration in Italy was begun in the early 1950s by private companies, which evaluated known radioactive occurrences. In 1954 two state-owned organizations—the Comitato Nazionale Ricerche Nucleari (CNRN) and the Ente Nazionale Idrocarburi (ENI)—became active in the exploration field and, a few years later, were the sole operators.
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Uranium exploration in Italy was begun in the early 1950s by private companies, which evaluated known radioactive occurrences. In 1954 two state-owned organizations—the Comitato Nazionale Ricerche Nucleari (CNRN) and the Ente Nazionale Idrocarburi (ENI)—became active in the exploration field and, a few years later, were the sole operators.
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1993
A number of global and regional classifications of uranium deposits have been proposed in the past by Heinrich (1958), Ruzicka (1971), Ziegler (1974), Kazansky and Laverov (1977), Mickle and Mathews (1978), Mathews et al. (1979), Dahlkamp (1980), Nash et al. (1981), Barthel et al. (1986), and others.
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A number of global and regional classifications of uranium deposits have been proposed in the past by Heinrich (1958), Ruzicka (1971), Ziegler (1974), Kazansky and Laverov (1977), Mickle and Mathews (1978), Mathews et al. (1979), Dahlkamp (1980), Nash et al. (1981), Barthel et al. (1986), and others.
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