Systematic Cathodoluminescence Spectral Analysis of Synthetic Doped Minerals: Anhydrite, Apatite, Calcite, Fluorite, Scheelite and Zircon

Blanc, Philippe; Baumer, A.; Cesbron, Fabien; Ohnenstetter, Daniel; Panczer, G.; Rémond, G.

doi:10.1007/978-3-662-04086-7_5

Cited by 48 publications

(31 citation statements)

References 37 publications

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“…The relatively high MnO content is responsible for the intense yellow CL colour observed in both apatite types as Mn +2 is the main CL activator causing CL emission at 560-575 nm in apatite (Fig. 5a, b, c, d and f; Gaft et al 1997;Blanc et al 2000). Micro-zoning of monovalent cations is observed in the Ap 1 type (Table 6; Fig.…”

Section: Apatite Chemistry and Cathodoluminescencementioning

confidence: 93%

The petrogenesis of granitoid rocks unusually rich in apatite in the Western Tatra Mts. (S-Poland, Western Carpathians)

et al. 2013

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In the bottom part of the tongue-shaped, layered granitoid intrusion, exposed in the Western Tatra Mts., apatite-rich granitic rocks occur as pseudo-layers and pockets between I-type hybrid mafic precursors and homogeneous S-type felsic granitoids. The apatite-rich rocks are peraluminous (ASI01.12-1.61), with P 2 O 5 contents ranging from 0.05 to 3.41 wt.% (<7.5 vol.% apatite), shoshonitic to high-K calcalkaline. Apatite is present as long-prismatic zoned crystals (Ap 1 ) and as large xenomorphic unzoned crystals (Ap 2 ). Ap 1 apatite and biotite represent an early cumulate. Feldspar and Ap 2 textural relations may reflect the interaction of the crystal faces of both minerals and support a model based on local saturation of (P, Ca, F) versus (K, Na, Al, Si, Ba) in the border zones. Chondrite-normalized REE patterns for the apatite rocks and for pure apatite suggest apatite was a main REE carrier in these rocks. Minerals characteristics and the whole rock chemistry suggest both reduced S-type and I-type magma influenced the apatite-rich rocks. The field observations, mineral and rock chemistry as well as mass-balance calculations point out that the presence of apatite-rich rocks may be linked to the continuous mixing of felsic and mafic magmas, creating unique phosphorus-and aluminium-rich magma portions. Formation of these rocks was initially dominated by the complex flowagecontrolled and to some extent also gravity-driven separation of early-formed zoned minerals and, subsequently, by local saturation in the border zones of growing feldspar and apatite crystals. Slow diffusion in the phosphorus-rich magma pockets favoured the local saturation and simultaneous crystallization of apatite and feldspars in a crystal-ladden melt.

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Section: Apatite Chemistry and Cathodoluminescencementioning

confidence: 93%

The petrogenesis of granitoid rocks unusually rich in apatite in the Western Tatra Mts. (S-Poland, Western Carpathians)

et al. 2013

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“…In spite of this progress, reliable interpretation of PL bands of unknown materials requires the availability of reference spectra obtained from synthetic analogues individually doped with the REE under consideration. For zircon, such investigations have been done already by Cesbron et al (1995), Blanc et al (2000), Gaft et al (2000), Karali et al (2000), Finch et al (2004) and Friis et al (2010).…”

Section: Introductionmentioning

confidence: 88%

“…One challenging task for luminescence studies was, and still is, the detection and correct assignment of REEs in different host minerals (Tarashchan, 1978;Waychunas and Tarashchan, 1995;Habermann et al, 1996;Reisfeld et al, 1996;Baumer et al, 1997;Gaft et al, 1999Gaft et al, , 2001Götze et al, 1999a,b;Blanc et al, 2000;Gorobets and Rogojine, 2001;Waychunas, 2002;Richter et al, 2004;Czaja et al, 2008). A comprehensive but perhaps still incomplete overview of mineral species showing REE photoluminescence was given by Gaft et al (2005).…”

Section: Introductionmentioning

confidence: 99%

Laser-induced REE3+ photoluminescence of selected accessory minerals — An “advantageous artefact” in Raman spectroscopy

et al. 2015

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Keywords:Zircon Xenotime Monazite Titanite Laser-induced REE photoluminescence Raman artefact Laser-induced photoluminescence of trivalent rare-earth elements (REEs), which is obtained as analytical artefacts in Raman spectra of selected accessory minerals, was studied. Spectra of natural titanite, monazite-(Ce), xenotime-(Y), and zircon samples from various geological environments were compared with emission spectra of synthetic, flux-grown analogues doped with REEs. The latter is of great importance to identify potentially mistakable bands as either Raman or PL signal, and to assign them to certain REE centres. In the samples investigated, various REE centres are excited selectively using 473, 514, 532, 633, and 785 nm laser excitation. Their assignment was verified by photoluminescence-excitation experiments. Luminescence spectral patterns of zircon and titanite vary in dependence of trace-REE concentrations, hence reflecting geochemical growth conditions. "REE artefacts" in Raman spectra of accessory minerals may be used as fingerprint tool for mineral phaseidentification. The distribution of REE emission-intensities, revealed by hyperspectral mapping, opens up the opportunity to visualise mineral textures, complementary to cathodoluminescence imaging-techniques.

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“…[5] In the 1990s, the luminescence group of Lyon analyzed natural apatite by inductively coupled plasma spectrometry (ICP-mass) spot analyses combined with photoluminescence in order to assign luminescence emission centers of Ce 3þ , Pr 3þ , Nd 3þ , Sm 3þ , Eu 3þ , Tb 3þ , Dy 3þ , Er 3þ , Tm 3þ , Yb 3þ . [6,7] In the present century, CL spectra studies of apatite crystals continue to use improved MonoCL optical configurations with CCD systems coupled to ESEM microscopes. A fully retractable parabolic aluminum mirror acts as light collector, placed immediately above the sample surface.…”

Section: Introductionmentioning

confidence: 99%

Spectra Luminescence of Extraterrestrial Calcium Phosphates in Mexican Chondrites

Aldave

Guinea

Tormo

2011

Spectroscopy Letters

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Systematic Cathodoluminescence Spectral Analysis of Synthetic Doped Minerals: Anhydrite, Apatite, Calcite, Fluorite, Scheelite and Zircon

Cited by 48 publications

References 37 publications

The petrogenesis of granitoid rocks unusually rich in apatite in the Western Tatra Mts. (S-Poland, Western Carpathians)

The petrogenesis of granitoid rocks unusually rich in apatite in the Western Tatra Mts. (S-Poland, Western Carpathians)

Laser-induced REE3+ photoluminescence of selected accessory minerals — An “advantageous artefact” in Raman spectroscopy

Spectra Luminescence of Extraterrestrial Calcium Phosphates in Mexican Chondrites

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