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fluorocarbonates

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Journal Article
Published: 01 July 2014
American Mineralogist (2014) 99 (7): 1335–1346.
... into the short-wave infrared. These REE fluorocarbonate mineral samples were characterized via scanning electron microscopy and electron probe microanalysis. Sharp absorptions of REE-bearing minerals are mostly the result of 4 f -4 f intraconfigurational electron transitions and for the light REE-enriched...
FIGURES | View All (9)
Series: GSA Engineering Geology Case Histories
Published: 01 January 1978
DOI: 10.1130/Eng-Case-11.73
EISBN: 9780813759364
... not proportionally increase the soundness. The soundness was improved in fluorocarbon-acrylic copolymers, but here the chemical improvement was at its best. The maximum improvement of soundness was experienced by epoxy-treated specimens. An absolute prediction of the long-range behavior of preservative treatments...
Journal Article
Published: 01 March 1991
The Canadian Mineralogist (1991) 29 (1): 107–111.
Image
Back-scattered electron images: REE <span class="search-highlight">fluorocarbonates</span> from hydrothermal vein...
Published: 01 August 2008
F ig . 5. Back-scattered electron images: REE fluorocarbonates from hydrothermal veins in BIT carbonatite stockwork. The small bright spots within the fluorocarbonates are the target microprobe beam. Brighter areas (higher-Z areas) are barite, and darker areas (lower-Z areas) are quartz
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CHEMICAL COMPOSITION OF <span class="search-highlight">FLUOROCARBONATES</span>
Published: 01 October 2007
TABLE 1. CHEMICAL COMPOSITION OF FLUOROCARBONATES
Journal Article
Published: 01 August 2008
The Canadian Mineralogist (2008) 46 (4): 901–914.
...F ig . 5. Back-scattered electron images: REE fluorocarbonates from hydrothermal veins in BIT carbonatite stockwork. The small bright spots within the fluorocarbonates are the target microprobe beam. Brighter areas (higher-Z areas) are barite, and darker areas (lower-Z areas) are quartz...
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Journal Article
Published: 01 December 1997
American Mineralogist (1997) 82 (11-12): 1255–1260.
Journal Article
Published: 01 February 1997
The Canadian Mineralogist (1997) 35 (1): 181–187.
Journal Article
Published: 01 June 1997
The Canadian Mineralogist (1997) 35 (3): 743–749.
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Rare earth <span class="search-highlight">fluorocarbonate</span> textural relationships. A) Backscattered electro...
Published: 01 June 2022
Fig. 6. Rare earth fluorocarbonate textural relationships. A) Backscattered electron (BSE) image of synchysite/parisite (gray) with bastnäsite cores (white). B) BSE image of rare earth element (REE)-fluorocarbonates (mainly synchysite/parisite) intergrown with barite. C) BSE image of REE
Journal Article
Published: 01 February 1998
Mineralogical Magazine (1998) 62 (1): 55–64.
...Xiuling Wu; Dawei Meng; Zhaolu Pan; Guangming Yang; Douxing Li Structures of calcium-rare-earth (Ca-RE) fluorocarbonate minerals from southwest China have been investigated using selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM...
Journal Article
Published: 03 July 2023
American Mineralogist (2023) 108 (7): 1298–1314.
... Jiufeng granite in the Zhuguangshan batholith, South China. Alteration of allanite in the Changjiang granite is characterized by the altered domains with lower backscattered electron (BSE) intensities than the unaltered domains and replacement by other secondary minerals such as REE fluorocarbonates...
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Backscattered electron (BSE) images of rare earth minerals. A) Strontianite...
Published: 01 June 2022
Fig. 7. Backscattered electron (BSE) images of rare earth minerals. A) Strontianite replacement of rare earth element (REE)-fluorocarbonates and ancylite. B) Replacement of daqingshanite by SCRp in association with ancylite and strontianite within a rare earth pseudomorph. C) Evidence of SCRp
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Micron- to submicron-sized rare earth element (REE) <span class="search-highlight">fluorocarbonate</span> inclusi...
Published: 01 May 2022
Fig. 9. Micron- to submicron-sized rare earth element (REE) fluorocarbonate inclusions in dolomite (Dol) (A-C) and calcite (Cal) (D-F). (A) Submicron-sized REE fluorocarbonate grains (tiny bright spots) occurring within a thin veinlet of dolomite. (B) Comparatively larger synchysite-(Ce) (Syn
Journal Article
Published: 01 January 2019
The Canadian Mineralogist (2019) 57 (1): 3–24.
... are steeply downwards-sloping with a relatively low and flat HREE segment. Such a fractionation trend is markedly different from that seen for REE-fluorocarbonates, the dominant REE host at Olympic Dam, which contain relatively higher MREE and HREE components. Xenotime is relatively rare at Olympic Dam...
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Backscattered electron and X-ray WDS element maps of eudialyte pseudomorphs...
Published: 01 December 2017
-fluorocarbonates. (B) Sample L10-267-253.54. Zircon, fergusonite-(Y), and samarskite-(Y) are restricted to the interior of the pseudomorphs, whereas REE-fluorocarbonates, such as bastnäsite-(Ce), occur throughout the sample.
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SEM images of significant mineral phases in studied slates. ( a – c ) Luarc...
Published: 19 February 2018
Fig. 7. SEM images of significant mineral phases in studied slates. ( a – c ) Luarca slate (( a ) pyrrhotite; ( b ) REE-rich fluorocarbonate (white); ( c ) titanium dioxide mineral, probably anatase); ( d – f ) Culm slate (( d ) well-formed pyrite framboid; ( e ) REE-rich fluorocarbonate (light
Journal Article
Journal: Economic Geology
Published: 01 May 2022
Economic Geology (2022) 117 (3): 683–702.
...Fig. 9. Micron- to submicron-sized rare earth element (REE) fluorocarbonate inclusions in dolomite (Dol) (A-C) and calcite (Cal) (D-F). (A) Submicron-sized REE fluorocarbonate grains (tiny bright spots) occurring within a thin veinlet of dolomite. (B) Comparatively larger synchysite-(Ce) (Syn...
FIGURES | View All (14)