<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1026-8774</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias geológicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. cienc. geol]]></abbrev-journal-title>
<issn>1026-8774</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Geología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1026-87742017000300199</article-id>
<article-id pub-id-type="doi">10.22201/cgeo.20072902e.2017.3.455</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Geoquímica de lantánidos de los yacimientos de fluorita de los distritos mineros de Taxco y Zacualpan, sur de México: implicaciones sobre el origen y la evolución de los fluidos]]></article-title>
<article-title xml:lang="en"><![CDATA[Lanthanide geochemistry of the fluorite deposits in the Taxco and Zacualpan mining districts, southern Mexico: implications for the origin and evolution of fluids]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pi]]></surname>
<given-names><![CDATA[Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solé]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morton-Bermea]]></surname>
<given-names><![CDATA[Ofelia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Taran]]></surname>
<given-names><![CDATA[Yuri]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Álvarez]]></surname>
<given-names><![CDATA[Elisabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geología ]]></institution>
<addr-line><![CDATA[Cd. de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[Cd. de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geofísica ]]></institution>
<addr-line><![CDATA[Cd. de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>34</volume>
<numero>3</numero>
<fpage>199</fpage>
<lpage>211</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1026-87742017000300199&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1026-87742017000300199&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1026-87742017000300199&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: Se presentan y evalúan los contenidos de lantánidos, analizados mediante espectrometría de masas de plasma inducido (ICP-MS), en fluoritas de diferentes yacimientos de los distritos mineros de Taxco y Zacualpan situados en el sector sur de México. Esta información es utilizada como herramienta para establecer las relaciones de este mineral con la roca encajonante, así como para discriminar diferentes episodios de mineralización y la existencia de procesos postdeposicionales. Las fluoritas analizadas presentan contenidos variables en lantánidos y de manera predominante patrones normalizados enriquecidos en lantánidos ligeros (LREE). La concentración de lantánidos en la fluorita es baja en comparación con la que presentan las rocas volcánicas y metamórficas del encajonante (&#8721;REE &gt; 100 ppm) y alta respecto a la de los carbonatos (&#8721;REE &lt; 30 ppm). Existe una correlación entre la forma de los patrones de lantánidos de la fluorita y la naturaleza de la roca huésped. Las concentraciones más altas se dan en fluorita hospedada en rocas volcánicas y las más bajas en la fluorita asociada al reemplazo del carbonato. Por su parte, la fluorita asociada a sulfuros presenta un mayor enriquecimiento en lantánidos pesados. Casi todas las fluoritas presentan anomalía negativa de europio con excepción de algunas fluoritas tempranas de color oscuro y alto contenido de uranio de la mina La Azul. En algunas muestras se observa una correlación directa entre el color y el contenido en lantánidos. Integrando todos los datos, en el distrito minero de Zacualpan se ha podido discriminar un solo episodio de mineralización. La fluorita presenta características geoquímicas típicas de las fluoritas hidrotermales. En el distrito minero de Taxco, y particularmente en la Mina La Azul, se han diferenciado varias etapas de mineralización. La primera generación de fluorita está asociada al reemplazo de carbonatos y se caracteriza por un contenido muy bajo de lantánidos, y patrones de lantánidos normalizados similares a los de las rocas carbonatadas, alto contenido de estroncio y texturas primarias (p. ej., fluorita masiva y ritmitas). La segunda generación de fluorita está relacionada con la entrada de nuevos fluidos al sistema y se caracteriza por presentar concentraciones más altas de lantánidos, patrones similares a los de las rocas volcánicas, bajo contenido de estroncio y texturas secundarias (p. ej., brechas y nódulos). Por lo que respecta a su génesis, los patrones de lantánidos de la mayoría de las muestras de fluorita del distrito minero de Taxco evidencian una relación directa con fluidos de origen magmático.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: We present and evaluate lanthanide contents measured by inductively coupled plasma mass spectrometry (ICP-MS) in fluorite samples from the fluorite deposits in Zacualpan and Taxco mining districts in the south of Mexico. The information is used to distinguish different generations of fluorite, to establish a correlation between mineralization episodes and the wall rock nature, and to identify postdepositional processes. The total lanthanide content of the fluorites are variable, and early-stage fluorite samples are usually enriched in LREE. The concentration of REE in fluorite is low in comparison with the volcanic and metamorphic rocks (&#8721;REE &gt; 100 ppm) and is generally high respect the carbonates (&#8721;REE &lt; 30 ppm). There is host rock influence. The higher REE concentrations are in fluorites hosted by volcanic rocks. The fluorite that replaced carbonate is characterized by low REE to very low concentrations. Fluorite samples associated with sulfurs are typically enriched in HREE. Nearly all fluorites show a negative Eu anomaly similar to the REE anomaly observed in the volcanic rock. Only some early stage dark, uranium rich fluorites, from la Azul deposit, have a strong positive Eu anomaly. Direct correlation between color and REE patterns is observed in some samples. In the Zacualpan mining district, only an episode of mineralization has been discriminated, where fluorite presents flat to HREE- enriched chondrite-normalized REE patterns. In the Taxco mining district and particularly in the &#8220;Mina la Azul&#8221;, multiple hydrothermal events of mineralization have been determined. The first generation of fluorite is formed by replacement of carbonates and is characterized by very low contents of lanthanides, chondrite-normalized REE patterns similar to the limestone, high strontium content and primary textures (e.g. massive fluorite and rhythmites). The second generation of fluorite is related to the entry of new fluid to the system and has higher REE concentrations, chondrite-normalized REE patterns similar to volcanic rocks, low strontium content and secondary textures (i.e. breccias, nodules). Most of the samples show a genetic relationship between fluorite and fluids of magmatic origin.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fluorita]]></kwd>
<kwd lng="es"><![CDATA[lantánidos]]></kwd>
<kwd lng="es"><![CDATA[REE]]></kwd>
<kwd lng="es"><![CDATA[hidrotermal]]></kwd>
<kwd lng="en"><![CDATA[fluorite]]></kwd>
<kwd lng="en"><![CDATA[lanthanide]]></kwd>
<kwd lng="en"><![CDATA[REE]]></kwd>
<kwd lng="en"><![CDATA[hydrothermal]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alaniz-Álvarez]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nieto-Samaniego]]></surname>
<given-names><![CDATA[A.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Morán-Zenteno]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Alba-Aldave]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rhyolitic volcanism in extension zone associated with strike-slip tectonics in the Taxco region, southern Mexico]]></article-title>
<source><![CDATA[Journal of Volcanology and Geothermal Research]]></source>
<year>2002</year>
<volume>118</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-14</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allen]]></surname>
<given-names><![CDATA[R.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variations in chemical and physical properties of fluorite]]></article-title>
<source><![CDATA[American Mineralogist]]></source>
<year>1952</year>
<volume>37</volume>
<page-range>910-30</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bau]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Controls on the fractionation of isovalent trace elements in magmatic and aqueous systems: evidence from Y/Ho, Zr/Hf, and lanthanide tetrad effect]]></article-title>
<source><![CDATA[Contributions to Mineralogy and Petrology]]></source>
<year>1996</year>
<volume>123</volume>
<page-range>323-33</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bau]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Dulski]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparative study of yttrium and rare-earth element behaviours in fluorine-rich hydrothermal fluids]]></article-title>
<source><![CDATA[Contributions to Mineralogy and Petrology]]></source>
<year>1995</year>
<volume>119</volume>
<page-range>213-23</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bau]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Romer]]></surname>
<given-names><![CDATA[R.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Lüders]]></surname>
<given-names><![CDATA[V.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Dulski]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tracing element sources of hydrothermal mineral deposits: REE and Y distribution and Sr-Nd-Pb isotopes in fluorite from MVT deposits in the Pennine Orefield]]></source>
<year>2003</year>
<volume>38</volume>
<page-range>992-1008</page-range><publisher-loc><![CDATA[England ]]></publisher-loc>
<publisher-name><![CDATA[Mineralium Deposita]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barrat]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Zanda]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Moynier]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Bollinger]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Liorzou]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Bayon]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geochemistry of CI chondrites: Major and trace elements, and Cu and Zn Isotopes]]></article-title>
<source><![CDATA[Geochimica et Cosmochimica Acta]]></source>
<year>2012</year>
<volume>83</volume>
<page-range>79-92</page-range><publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bosze]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rakovan]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Surface structure controlled sectorial zoning of the rare earth elements in fluorite from Long Lake, New York, and Bingham, New Mexico, USA]]></article-title>
<source><![CDATA[Geochimica et Cosmochimica Acta]]></source>
<year>2002</year>
<volume>66</volume>
<page-range>997-1009</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Campa-Uranga]]></surname>
<given-names><![CDATA[M.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres de León]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Iriondo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Premo]]></surname>
<given-names><![CDATA[W.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización geológica de los ensambles metamórficos de Taxco y Taxco el Viejo, Guerrero, México]]></article-title>
<source><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></source>
<year>2012</year>
<volume>64</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>369-85</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chatagnon]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Galland]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[R.P.E. de la fluorite naturelle: inventaire des ions lanthanides et autres impuretés paramagnétiques]]></article-title>
<source><![CDATA[Bulletin Minéralogie]]></source>
<year>1982</year>
<volume>105</volume>
<page-range>37-42</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Constantopoulos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fluid inclusions and REE geochemistry of fluorite from S-Central Idaho]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>1988</year>
<volume>83</volume>
<page-range>626-36</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ehya]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variation of mineralizing fluids and fractionation of REE during the emplacement of the vein-type fluorite deposit at Bozijan, Markazi Province, Iran]]></article-title>
<source><![CDATA[Journal of Geochemical Exploration]]></source>
<year>2012</year>
<volume>112</volume>
<page-range>93-106</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ekambaram]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Brookins]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rosenburg]]></surname>
<given-names><![CDATA[P.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Emanuel]]></surname>
<given-names><![CDATA[K.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rare-earth element geochemistry of fluorite-carbonate deposits in Western Montana, U.S.A.]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>1986</year>
<volume>54</volume>
<page-range>319-31</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eppinger]]></surname>
<given-names><![CDATA[R.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Closs]]></surname>
<given-names><![CDATA[L.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variation of trace elements and REE in Fluorite: a possible tool for exploration]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>1990</year>
<volume>85</volume>
<page-range>1896-907</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fanlo]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Touray]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Subias]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Nieto]]></surname>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geochemical patterns of a sheared fluorite vein, Parzan Spanish Central Pyrenees]]></article-title>
<source><![CDATA[Mineralium Deposita]]></source>
<year>1998</year>
<volume>33</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>620-32</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fleischer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The lanthanide elements in fluorite]]></article-title>
<source><![CDATA[Indian Mineralogy]]></source>
<year>1969</year>
<volume>10</volume>
<page-range>36-9</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gagnon]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Samson]]></surname>
<given-names><![CDATA[I.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fryer]]></surname>
<given-names><![CDATA[B.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Williams-Jones]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Compositional heterogeneity in fluorite and the genesis of fluorite deposits: insights from LA-ICP-MS analysis]]></article-title>
<source><![CDATA[The Canadian Mineralogist]]></source>
<year>2003</year>
<volume>41</volume>
<page-range>365-82</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grappin]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Treuil]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Le Spèctre des Terres Rares de la fluorine en tant que marqueur des propriétés du milieu de dépôt et des interactions entre solutions minéralisantes et roches sources: Exemple pris dans le district de la Marche Occidentale (France)]]></article-title>
<source><![CDATA[Mineralium Deposita]]></source>
<year>1979</year>
<volume>14</volume>
<page-range>297-309</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Graupner]]></surname>
<given-names><![CDATA[.]]></given-names>
</name>
<name>
<surname><![CDATA[Mühlbach]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Schwarz-Schampera]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Henjes-Kunst]]></surname>
<given-names><![CDATA[.]]></given-names>
</name>
<name>
<surname><![CDATA[Melcher]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Terblanche]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mineralogy of high-field-strength elements (Y, Nb, REE) in the world-class Vergenoeg fluorite deposit, South Africa]]></article-title>
<source><![CDATA[Ore Geology Reviews]]></source>
<year>2015</year>
<volume>64</volume>
<page-range>583-601</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haas]]></surname>
<given-names><![CDATA[J.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Shock]]></surname>
<given-names><![CDATA[E.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Sarrani]]></surname>
<given-names><![CDATA[D.V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prediction of high-temperature stability constants for aqueous compounds of the rare-earth elements]]></article-title>
<source><![CDATA[Abstract with programs]]></source>
<year>1993</year>
<volume>25</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>437</page-range><publisher-loc><![CDATA[Boston, Massachusetts ]]></publisher-loc>
<publisher-name><![CDATA[Geological Society of America]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hill]]></surname>
<given-names><![CDATA[G.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Campbell]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Kyle]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geochemistry of southwestern New Mexico fluorite occurrences implications for precious metals exploration in fluorite bearing systems]]></article-title>
<source><![CDATA[Journal of Geochemical Exploration]]></source>
<year>2000</year>
<volume>68</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>1-20</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Irving]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of experimental studies of crystal/liquid trace element partitioning]]></article-title>
<source><![CDATA[Geochimica and Cosmochimica Acta]]></source>
<year>1978</year>
<volume>42</volume>
<page-range>743-70</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jebrak]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Smejkal]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Albert]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rare earth and isotopic geochemistry of the fluorite-barite vein deposits from the western Rouergue District (France)]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>1985</year>
<volume>80</volume>
<page-range>2030-4</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Krupenin]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Moeller]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Dulski]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rare earth and other elements in fluorite and in the lower Riphean Host Dolomite of the Southern Urals]]></article-title>
<source><![CDATA[Geochemistry International]]></source>
<year>1999</year>
<volume>11</volume>
<page-range>1165-77</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lottermoser]]></surname>
<given-names><![CDATA[B.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[REE and Hydrothermal ore formation processes]]></article-title>
<source><![CDATA[Ore Geology Reviews]]></source>
<year>1992</year>
<volume>7</volume>
<page-range>25-41</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Makin]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Simandl]]></surname>
<given-names><![CDATA[G.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Marshall]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fluorite and its potential as an indicator mineral for carbonatite related rare earth element deposits]]></article-title>
<source><![CDATA[Geological Fieldwork 2013]]></source>
<year>2014</year>
<volume>2014</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>207-12</page-range><publisher-name><![CDATA[British Columbia Ministry of Energy and Mines]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marchand]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Joseph]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Touray]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Critères d´analyse géochimique des gisements de fluorine basés sur l´étude de la distribution des lanthanides-application au gite de Maine (71-Cordesse, France)]]></article-title>
<source><![CDATA[Mineralium Deposita]]></source>
<year>1976</year>
<volume>11</volume>
<page-range>357-79</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meary]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Touray]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Galland]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Jebrak]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interprétation de l´anomalie en europium des fluorines hydrothermales-données de la résonance paramagnétique électronique: application au gite de fluorine de Montroc (Tarn France)]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>1985</year>
<volume>48</volume>
<page-range>115-24</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McDonough]]></surname>
<given-names><![CDATA[W.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[S.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Composition of the Earth]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>1995</year>
<volume>120</volume>
<page-range>223-53</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Möller]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Morteani]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On the geochemical fractionation of rare earth elements during the formation of Ca-minerals and its application to problems of the genesis of ore deposits]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Augusthitis]]></surname>
<given-names><![CDATA[S.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[The significance of trace elements in solving petrogenetic problems and controversies]]></source>
<year>1983</year>
<page-range>747-91</page-range><publisher-loc><![CDATA[Athens ]]></publisher-loc>
<publisher-name><![CDATA[Theophrastus Publications]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Möller]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Parekh]]></surname>
<given-names><![CDATA[P.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[H.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The application of Tb/Ca - Tb/La abundance ratios to problems of fluorspar genesis]]></article-title>
<source><![CDATA[Mineralium Deposita]]></source>
<year>1976</year>
<volume>11</volume>
<page-range>111-6</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Monecke]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Monecke]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mönch]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Kempe]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mathematical analysis of rare earth element patterns of fluorites from the Ehrenfriedersdorf tin deposit, Germany: evidence for a hydrothermal mixing process of lanthanides from two different sources]]></article-title>
<source><![CDATA[Mineralogy and Petrology]]></source>
<year>2000</year>
<volume>70</volume>
<page-range>235</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morgan]]></surname>
<given-names><![CDATA[J.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Wandless]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rare-earth element distribution in some hydrothermal minerals: evidence for crystallographic control]]></article-title>
<source><![CDATA[Geochimica et Cosmochimica Acta]]></source>
<year>1980</year>
<volume>44</volume>
<page-range>973-80</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio mineralógico, geoquímico y geocronológico de los yacimientos de fluorita de Taxco (Guerrero) y Zacualpan (Edo. De México)]]></source>
<year>2005</year>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Solé]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Taran]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Role of water-rock interaction in the formation of La Azul fluorite deposit, southern Mexico]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Wanty]]></surname>
<given-names><![CDATA[R.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Seal II]]></surname>
</name>
</person-group>
<source><![CDATA[Water-rock Interaction]]></source>
<year>2005</year>
<volume>1</volume>
<page-range>299-302</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Taylor and Francis Group]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Solé]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Taran]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[(U-Th)/He dating of fluorite: application to the La Azul fluorspar deposit in the Taxco mining district, Mexico]]></article-title>
<source><![CDATA[Mineralium Deposita]]></source>
<year>2005</year>
<volume>39</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>976-82</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rivera Carranza]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[de la Teja Segura]]></surname>
<given-names><![CDATA[M.A]]></given-names>
</name>
<name>
<surname><![CDATA[Miranda Huerta]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lemus Bustos]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Motolínia García]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[León Ayala]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Moctezuma Salgado]]></surname>
<given-names><![CDATA[M.D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hoja Cuernavaca 90_E14-5, escala 1:250000]]></source>
<year>1998</year>
<publisher-loc><![CDATA[Pachuca ]]></publisher-loc>
<publisher-name><![CDATA[Servicio Geológico Mexicano]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kesler]]></surname>
<given-names><![CDATA[S.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Jones]]></surname>
<given-names><![CDATA[L.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sutter]]></surname>
<given-names><![CDATA[J.F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geology and Geochemistry of the Las Cuevas fluorite deposit, San Luis Potosí, Mexico]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>1980</year>
<volume>75</volume>
<page-range>1200-9</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sasmaz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Yavuz]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[REE geochemistry and fluid-inclusion studies of fluorite deposits from the Yaylagözü area (Y&#305;ld&#305;zeli-Sivas) in Central Turkey]]></article-title>
<source><![CDATA[Neues Jahrbuch für Mineralogie]]></source>
<year>2007</year>
<volume>183</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>215-26</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schwinn]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Markl]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[REE systematics in hydrothermal fluorite]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>2005</year>
<volume>216</volume>
<page-range>225-48</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Strong]]></surname>
<given-names><![CDATA[D.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Fryer]]></surname>
<given-names><![CDATA[B.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kerrich]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genesis of the St. Lawrence fluorspar deposits as indicated by fluid inclusion, rare earth element and isotopic data. A second issue devoted to Canadian mineral deposits]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>1984</year>
<volume>79</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1142-58</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Subías]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Fanlo]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[López- Ciriano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrnández-Nieto]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geochemistry and genesis of fluorite mineralization of Spanish Western Pyrenees (Huesca Province)]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Seltmann R.]]></surname>
<given-names><![CDATA[Kämpf H.]]></given-names>
</name>
<name>
<surname><![CDATA[Moeller]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Metallogeny of collisional orogens]]></source>
<year>1994</year>
<page-range>423-9</page-range><publisher-loc><![CDATA[Prague ]]></publisher-loc>
<publisher-name><![CDATA[Czech Geological Survey]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soussi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Souissi]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dandurand]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Genesis of the Mississippi Valley-Type Fluorite Ore at Jebel Stah (Zaghouan District, North-Eastern Tunisia), Constrained by Thermal and Chemical Properties of Fluids and REE and Sr Isotope Geochemistry]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Panagiotaras]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geochemistry - Earth's System Processes, InTech.]]></source>
<year>2012</year>
<page-range>249-90</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sverjensky]]></surname>
<given-names><![CDATA[D.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Europium redox equilibria in aqueous solution]]></article-title>
<source><![CDATA[Earth and Planetary Science Letters]]></source>
<year>1984</year>
<volume>67</volume>
<page-range>70-8</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Trinkler]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Monecke]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Thomas]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Constraints on the genesis of yellow fluorite in hydrothermal barite-fluorite veins of the Erzgebirge, Eastern Germany: Evidence from optical absorption spectroscopy, rare earth element data, and fluid inclusion investigations]]></article-title>
<source><![CDATA[Canadian Mineralogist]]></source>
<year>2005</year>
<volume>43</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>883-98</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walker]]></surname>
<given-names><![CDATA[J.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Choppin]]></surname>
<given-names><![CDATA[G.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Thermodynamic parameters of fluoride complexes of the lanthanides]]></article-title>
<source><![CDATA[Advances in Chemistry]]></source>
<year>1967</year>
<volume>71</volume>
<page-range>127-40</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[William-Jones]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Samson]]></surname>
<given-names><![CDATA[I.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Olivo]]></surname>
<given-names><![CDATA[G.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genesis of hydrothermal fluorite-REE deposits in the Gallinas Mountains, New Mexico]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>2000</year>
<volume>95</volume>
<page-range>327-42</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Whittaker]]></surname>
<given-names><![CDATA[E.J.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Muntus]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ionic radii for use in geochemistry]]></article-title>
<source><![CDATA[Geochimica et Cosmochimica Acta]]></source>
<year>1972</year>
<volume>34</volume>
<page-range>945-56</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wood]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The aqueous geochemistry of the rare-earth elements and yttrium. 2. Theoretical predictions of speciation in hydrothermal solutions to 350 °C at saturation water vapor pressure]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>1990</year>
<volume>88</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>99-125</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[R.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Kynicky]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Chakhmouradian]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of fluorite geochemistry from REE deposits in the Panxi region and Bayan Obo, China]]></article-title>
<source><![CDATA[Journal of Asian Earth Sciences]]></source>
<year>2012</year>
<volume>57</volume>
<page-range>76-89</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
