Reference Type | Journal (article/letter/editorial) |
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Title | Two new rare-earth-rich mineral associations in the Ilímaussaq alkaline complex, South Greenland |
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Journal | Geology of Greenland Survey Bulletin |
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Authors | Pekov, Igor V. | Author |
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Ekimenkova, Irina A. | Author |
Year | 2001 (December 21) | Volume | 190 |
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Page(s) | 143-144 | Issue | 190 |
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Publisher | Geological Survey of Denmark and Greenland |
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URL | |
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Download URL | https://geusjournals.org/index.php/ggub/issue/download/427/38+ |
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DOI | doi:10.34194/ggub.v190.5185Search in ResearchGate |
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Classification | Not set | LoC | Not set |
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Mindat Ref. ID | 16914117 | Long-form Identifier | mindat:1:5:16914117:4 |
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GUID | bb90a3a1-1cad-4b65-99c7-32040b4d41dd |
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Full Reference | Pekov, Igor V., Ekimenkova, Irina A. (2001) Two new rare-earth-rich mineral associations in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin, 190 (190) 143-144 doi:10.34194/ggub.v190.5185 |
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Plain Text | Pekov, Igor V., Ekimenkova, Irina A. (2001) Two new rare-earth-rich mineral associations in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin, 190 (190) 143-144 doi:10.34194/ggub.v190.5185 |
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In | Sørensen, Henning - Ed. (2001) The Ilímaussaq alkaline complex, South Greenland: status of mineralogical research with new results. Geology of Greenland Survey Bulletin 190. GEUS |
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Abstract/Notes | Two new types of REE-rich mineral associations have been discovered at Kvanefjeld in the northern part of the Ilímaussaq alkaline complex. Type 1 consists of ussingite veins intersecting lujavrite and containing 5–7% nacareniobsite-(Ce) and 2–4% steenstrupine-(Ce); the adjacent altered lujavrite contains up to 10–12% nacareniobsite-(Ce). Type 2 consists of cavernous sodalite-rich veinlets and vugs in lujavrite containing 5–8% vitusite-(Ce). The chemical compositions and unit cell parameters of REE minerals are given. Nacareniobsite-(Ce) and vitusite-(Ce) were considered to be extremely rare minerals in the Ilímaussaq complex. Nacareniobsite-(Ce) is now known to be of more widespread occurrence in some hyper-agpaitic rocks of the Ilímaussaq complex, and vitusite-(Ce) is known to be the precursor of the widespread occurrence of the yellow pseudomorphs termed erikite. |
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