Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| Title | Uranium- and thorium-rich vesuvianite from the Seward Peninsula, Alaska |
| Creator/Author | Himmelberg, G.R. (Univ. of Missouri, Columbia) ; Miller, T.P. |
| Publication Date | 1980 Sep 01 |
| OSTI Identifier | OSTI ID: 6623052 |
| Other Number(s) | CODEN: AMMIA |
| Resource Type | Journal Article |
| Resource Relation | Am. Mineral. ; Vol/Issue: 65:9, 10 |
| Subject | 050100 -- Nuclear Fuels-- Reserves, Exploration, & Mining ;580300 -- Mineralogy, Petrology, & Rock Mechanics-- (-1989); ;ALASKA-- URANIUM DEPOSITS;VESUVIANITE-- CHEMICAL COMPOSITION;VESUVIANITE-- PETROGENESIS; GEOLOGY;SYENITES |
| Related Subject | GEOLOGIC DEPOSITS;IGNEOUS ROCKS;MATERIALS;MINERAL RESOURCES;MINERALS;NORTH AMERICA;PACIFIC NORTHWEST REGION;PLUTONIC ROCKS;RADIOACTIVE MATERIALS;RADIOACTIVE MINERALS;RESOURCES;ROCKS;URANIUM MINERALS;USA |
| Description/Abstract | Vesuvianite rich in U, Th, and REE occurs in a syenite and nepheline syenite in southeastern Seward Peninsula, Alaska.^The vesuvianite occurs as large (up to 1.5 cm) tabular crystals; in thin section it is brownish-yellow and commonly zoned with an isotropic (metamict) core and an anisotropic (non-metamict) rim.^The chemical composition can be approximated by the formula (Ca,Na,La,Ce,Pr,Nd,U,Th)/sub 18/ /sub 1/(Al, Ti, Fe, Mn, Mg)/sub 12/ /sub 9/Si/sub 18/(O, OH, F)/sub 76/ UO/sub 2/ content ranges from 0.39 (non-metamict) to 0.84 weight percent (metamict), and ThO/sub 2/ ranges from 0.72 (non-metamict) to 2.70 weight percent.^Coexisting allanite has UO/sub 2/ and ThO/sub 2/ contents that range from 0.29 to 0.40 and 0.77 to 1.30 weight percents, respectively.^The vesuvianite probably formed by metasomatic activity prior to intrusion of subsilicic alkaline dikes. |
| Country of Publication | United States |
| Language | English |
| Format | Pages: 1020-1025 |
| System Entry Date | 2001 May 13 |
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Last Updated: 02/14/2009