<?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>0120-0283</journal-id>
<journal-title><![CDATA[Boletín de Geología]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. geol.]]></abbrev-journal-title>
<issn>0120-0283</issn>
<publisher>
<publisher-name><![CDATA[Universidad Industrial de Santander]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-02832022000200125</article-id>
<article-id pub-id-type="doi">10.18273/revbol.v44n2-2022006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Petrografía de las rocas de Consorcio en la mina de esmeraldas de Cunas (Maripí, Boyacá). Relación estratigráfica con rocas del Valle Medio del Magdalena (Colombia)]]></article-title>
<article-title xml:lang="en"><![CDATA[Petrography of the Consorcio rocks from the Cunas emerald mine (Maripi, Boyaca). Stratigraphic relationship with Medium Magdalena Basin rocks (Colombia)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martín-Ráyelo]]></surname>
<given-names><![CDATA[Andrés Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero-Ordóñez]]></surname>
<given-names><![CDATA[Fernando Elí]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Departamento de Geociencias ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>44</volume>
<numero>2</numero>
<fpage>125</fpage>
<lpage>143</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-02832022000200125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-02832022000200125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-02832022000200125&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El Cinturón Esmeraldífero Occidental (CEOC) y el Valle Medio del Magdalena (VMM) en Colombia son regiones caracterizadas por poseer gran cantidad de recursos minerales. El estudio de un yacimiento esmeraldífero en el CEOC correspondiente a la mina de esmeraldas de Cunas en Maripí (Boyacá), incluidos trabajo de campo, muestreo de rocas y minerales, levantamientos estratigráficos, petrografía y espectroscopia micro-Raman, muestra que las rocas en las formaciones Furatena y Muzo comparten una historia deposicional, diagenética y litofacies comunes con rocas del VMM (Formación Paja), comprendiendo mudstone calcáreos de facies marinas profundas proximales de gran espesor acumulados durante el Cretácico temprano (Hauteriviano-Barremiano) en una cuenca regionalmente continua afectada por procesos de rifting. En el CEOC, las mineralizaciones esmeraldíferas hospedadas en la Formación Muzo están relacionadas con procesos hidrotermales y tectónicos que se pueden resumir en una secuencia paragenética con cinco etapas mineralizantes controladas por la mineralogía y geoquímica de las rocas encajantes. Dichas etapas son una premineral, una de albitización, dos de carbonatización y una postmineral o de alteración; reconocidas entre sí por relaciones de corte y paragénesis contrastantes. Una propuesta preliminar de correlación estratigráfica es presentada, considerando la sección estratigráfica Consorcio realizada en este trabajo, así como otras secciones del CEOC y el VMM estudiadas por otros autores, usando análisis de facies y estratigrafía de secuencias. Se muestra que la Formación Muzo preserva facies lagunares afectadas por incidencia de tormentas, el mayor espesor de esta unidad en la sección Consorcio, comparado con el de su sección tipo, viene dado por la paleobatimetría e historia tectónica de inversión de grabens y semi-grabens; e igualmente, en este punto la cuenca pudo estar más cercana a la línea de costa con respecto VMM durante el Cretácico Temprano.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The Western Emerald Belt (WEB) and the Middle Magdalena Basin (MMB) are two Colombian regions characterized to have large quantity of mineral resources. The study of an emerald deposit in WEB corresponding to the Cunas emerald mine in Maripí (Boyacá) with field work, rock and mineral sampling, stratigraphic sections uplift, petrography, and complementary micro-Raman spectroscopy shows that the rocks in the Furatena and Muzo formations share a common depositional, diagenetic, and lithofacies history with Paja Formation from the MMB, comprising great thickness, calcareous mudstones of proximal deep marine facies, accumulated during the Early Cretaceous Period (Hauterivian-Barremian) in a continual regional basin affected by rifting. In the WEB, the emerald mineralizations hosted in the Muzo Formation are related to hydrothermal and tectonic processes that can be summarized in five mineralizing stages in a paragenetic sequence, being controlled by the mineralogy and geochemistry of the host rocks. These stages are as follows: premineral, albitization, two carbonatization stages, and a post-mineral or alteration stage; recognized by contrasting shear relationships and paragenesis. A preliminary stratigraphical correlation proposal is presented among the Consorcio stratigraphic section studied in the present work, with other WEB and MMB sections studied by other authors, using facies and sequence stratigraphic analysis. Muzo Formation preserve lagoon facies affected by storms, the Muzo's thickness greater than in Consorcio regarding its type section is given by paleobathymetry and tectonic inversion history of grabens and half-grabens; equally in this point the basin could be closest to the coastline respect to MMB during Early Cretaceous.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cinturón Esmeraldífero Occidental]]></kwd>
<kwd lng="es"><![CDATA[Distrito minero de Maripí]]></kwd>
<kwd lng="es"><![CDATA[Estratigrafía de secuencias]]></kwd>
<kwd lng="es"><![CDATA[Facies lagunares]]></kwd>
<kwd lng="es"><![CDATA[Secuencia paragenética]]></kwd>
<kwd lng="es"><![CDATA[Superficie transgresiva]]></kwd>
<kwd lng="en"><![CDATA[Western Emerald Belt]]></kwd>
<kwd lng="en"><![CDATA[Maripí mining district]]></kwd>
<kwd lng="en"><![CDATA[Sequence stratigraphy]]></kwd>
<kwd lng="en"><![CDATA[Lagoon facies]]></kwd>
<kwd lng="en"><![CDATA[Paragenetic sequence]]></kwd>
<kwd lng="en"><![CDATA[Transgressive surface]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aranguren-Canal]]></surname>
<given-names><![CDATA[D.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gordillo]]></surname>
<given-names><![CDATA[S.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Martín-Ravelo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno-Ramón]]></surname>
<given-names><![CDATA[M.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Solano-Gil]]></surname>
<given-names><![CDATA[D.F]]></given-names>
</name>
</person-group>
<source><![CDATA[Análisis neotectónico y de dinámica fluvial en las cuencas de los ríos Batá y Guavio, Cordillera Oriental de Colombia]]></source>
<year>2020</year>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Atuesta-Ortiz]]></surname>
<given-names><![CDATA[D.A]]></given-names>
</name>
</person-group>
<source><![CDATA[Caracterización sedimentológica y bioestratigráfica del contacto entre las formaciones Rosablanca y Paja en la Mesa de Barichara, Santander]]></source>
<year>2018</year>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beus]]></surname>
<given-names><![CDATA[A.A]]></given-names>
</name>
</person-group>
<source><![CDATA[Geokhimija berillija i geneticheskie tipy berillievykh mestorozhdenyi]]></source>
<year>1960</year>
<edition>1</edition>
<publisher-name><![CDATA[Academy of Science of the U.S.S.R]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beus]]></surname>
<given-names><![CDATA[A.A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sodium - a geochemical indicator of emerald mineralization in the Cordillera Oriental, Colombia]]></article-title>
<source><![CDATA[Journal of Geochemical Exploration]]></source>
<year>1979</year>
<volume>11</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>195-208</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Branquet]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Laumonier]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheilletz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emeralds in the Eastern Cordillera of Colombia: Two tectonic settings for one mineralization]]></article-title>
<source><![CDATA[Geology]]></source>
<year>1999</year>
<volume>27</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>597-600</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Branquet]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheilletz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Laumonier]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<source><![CDATA[Colombian emeralds and evaporites: tectono-stratigraphic significance of a regional emerald-bearing evaporitic breccia level]]></source>
<year>2015</year>
<conf-name><![CDATA[ 13SGA Biennial Meeting]]></conf-name>
<conf-loc>Nancy, Francia </conf-loc>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bürgl]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Situación geológica de las minas de esmeraldas de Muzo, Boyacá]]></article-title>
<source><![CDATA[Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></source>
<year>1956</year>
<volume>9</volume>
<numero>36-37</numero>
<issue>36-37</issue>
<page-range>381-8</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Campos-Alvarez]]></surname>
<given-names><![CDATA[N.O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geochemistry of black shales from the Lower Cretaceous Paja Formation, Eastern Cordillera, Colombia: Source weathering, provenance, and tectonic setting]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Roser]]></surname>
<given-names><![CDATA[B.P]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of South American Earth Sciences]]></source>
<year>2007</year>
<volume>23</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>271-89</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cheilletz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The genesis of colombian emeralds: a restatement]]></article-title>
<source><![CDATA[Mineralium Deposita]]></source>
<year>1996</year>
<volume>31</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>359-64</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Condie]]></surname>
<given-names><![CDATA[K.C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Another look at rare earth elements in shales]]></article-title>
<source><![CDATA[Geochimica et Cosmochimica Acta]]></source>
<year>1991</year>
<volume>55</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>2527-31</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dunham]]></surname>
<given-names><![CDATA[R.J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Classification of carbonate rocks according to depositional texture]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Ham]]></surname>
<given-names><![CDATA[W.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Classification of carbonate rocks]]></source>
<year>1962</year>
<edition>1</edition>
<conf-name><![CDATA[ A Symposium. American Association of Petroleum Geologists Memoir]]></conf-name>
<conf-loc> </conf-loc>
<page-range>108-21</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fabre]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La subsidencia de la cuenca del Cocuy (Cordillera Oriental de Colombia) durante el Cretáceo y el Terciario Inferior. Primera parte: Estudio cuantitativo de la subsidencia]]></article-title>
<source><![CDATA[Geología Norandina]]></source>
<year>1983</year>
<month>a</month>
<numero>8</numero>
<issue>8</issue>
<page-range>49-61</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fabre]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La subsidencia de la cuenca del Cocuy (Cordillera Oriental de Colombia) durante el Cretáceo y el Terciario inferior. Segunda parte: Esquema de evolución tectónica]]></article-title>
<source><![CDATA[Geología Norandina]]></source>
<year>1983</year>
<month>b</month>
<numero>8</numero>
<issue>8</issue>
<page-range>21-7</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Folk]]></surname>
<given-names><![CDATA[R.L]]></given-names>
</name>
</person-group>
<source><![CDATA[Petrology of sedimentary rocks]]></source>
<year>1980</year>
<publisher-name><![CDATA[Hemphill Publishing Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheilletz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Arboleda]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Rueda]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Carrillo]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Sheppard]]></surname>
<given-names><![CDATA[S.M.F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geoquímica y origen de los depósitos de esmeraldas en Colombia]]></article-title>
<source><![CDATA[Boletín de Geología]]></source>
<year>1999</year>
<volume>21</volume>
<numero>36</numero>
<issue>36</issue>
<page-range>7-13</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Groat]]></surname>
<given-names><![CDATA[L.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Marshall]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Fallick]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Branquet]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emerald deposits: A review and enhanced classification]]></article-title>
<source><![CDATA[Minerals]]></source>
<year>2019</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Toloza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bonilla]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Cedeño]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Angarita]]></surname>
<given-names><![CDATA[L.G]]></given-names>
</name>
</person-group>
<source><![CDATA[Geology of the La Pava emerald mine, Colombia]]></source>
<year>2019</year>
<conf-name><![CDATA[ 15Biennial Meeting]]></conf-name>
<conf-loc>Nancy, Francia </conf-loc>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Groat]]></surname>
<given-names><![CDATA[L.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Marshall]]></surname>
<given-names><![CDATA[D.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emerald deposits and occurrences: A review]]></article-title>
<source><![CDATA[Ore Geology Reviews]]></source>
<year>2008</year>
<volume>34</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>87-112</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[J.F]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio químico, mineralógico y espectroscópico de esmeraldas colombianas de los distritos mineros de Chivor, Muzo y Coscuez y su aplicación en la determinación de origen geográfico]]></source>
<year>2017</year>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Planteamiento y caracterización de la secuencia paragenética a través de análisis petrográfico, inclusiones fluidas y espectroscopia Raman de la mineralización presente en el túnel "Cromo-Pomponio-Santodomingo" de la mina La Pava municipio de Quípama, Boyacá]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leventhal]]></surname>
<given-names><![CDATA[J.S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Organic matter and thermochemical sulfate reduction in the Viburnum Trend, Southeast Missouri]]></article-title>
<source><![CDATA[Economic Geology]]></source>
<year>1990</year>
<volume>85</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>622-32</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mantilla]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Tassinari]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Mancini]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estudio de isótopos de C, O, Sr y de elementos de tierras raras (REE) en rocas sedimentarias cretácicas de la Cordillera Oriental (Dpto. de Santander, Colombia): implicaciones paleohidrogeológicas]]></article-title>
<source><![CDATA[Boletín de Geología]]></source>
<year>2006</year>
<volume>28</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>61-80</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martín-Ravelo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Caracterización mineralógica y espectral de las rocas del cinturón esmeraldífero occidental (formaciones Furatena y Muzo) y su relación con la Formación Paja del Valle Medio del Magdalena. Implicaciones en la mineralización de esmeraldas en Cunas (Maripí, Boyacá)]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maya]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Buenaventura]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Salinas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Estado del conocimiento de la exploración de esmeraldas en Colombia]]></source>
<year>2004</year>
<publisher-name><![CDATA[INGEOMINAS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mendoza-Parada]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anotaciones geoquímicas para exploración de esmeraldas en la región de Muzo-Coscuez con base en la relación Na/K y elementos traza]]></article-title>
<source><![CDATA[Geología Colombiana]]></source>
<year>1996</year>
<numero>21</numero>
<issue>21</issue>
<page-range>89-98</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Montoya-Arenas]]></surname>
<given-names><![CDATA[D.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Formación La Paja: Descripción de la sección tipo. Influencia de los tapices microbiales en su génesis]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Etayo-Serna]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudios geológicosy paleontológicos sobre el Cretácico en la región del embalse del río Sogamoso, Valle Medio del Magdalena]]></source>
<year>2019</year>
<page-range>51-67</page-range><publisher-name><![CDATA[Servicio Geológico Colombiano]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[General geology and oil occurrences of Middle Magdalena Valley, Colombia]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Weeks]]></surname>
<given-names><![CDATA[L.G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Habitat of Oil]]></source>
<year>1958</year>
<page-range>641-95</page-range><publisher-name><![CDATA[American Association of Petroleum Geologists]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Terraza]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Montoya]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geología del cinturón esmeraldífero oriental (CEOR)]]></article-title>
<source><![CDATA[Boletín de Geología]]></source>
<year>2009</year>
<volume>31</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>51-67</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mount]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mixed siliciclastic and carbonate sediments: a proposed first-order textural and compositional classification]]></article-title>
<source><![CDATA[Sedimentology]]></source>
<year>1985</year>
<volume>32</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>435-42</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez-Juya]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<source><![CDATA[Secuencia paragenética presente en el túnel "Cromo-Pomponio-Santo domingo" de la mina La Pava municipio de Quípama, Boyacá obtenida a partir de la caracterización petrográfica, análisis de inclusiones fluidas y espectroscopía Raman]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Montoya-Arenas]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Terraza-Melo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Fuquen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mayorga]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gaona]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geología del cinturón esmeraldífero occidental. Planchas 169, 170, 189 y 190 (Vol. 170)]]></source>
<year>2006</year>
<publisher-name><![CDATA[Instituto Colombiano de Geología y Minería (INGEOMINAS)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rivera]]></surname>
<given-names><![CDATA[H.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Roux]]></surname>
<given-names><![CDATA[Le]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[L.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Mariño-Martínez]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Salazar]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Barragán]]></surname>
<given-names><![CDATA[J.C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Palaeoredox conditions and sequence stratigraphy of the Cretaceous storm-dominated, mixed siliciclastic-carbonate ramp in the Eastern Cordillera Basin (Colombia): Evidence from sedimentary geochemical proxies and facies analysis]]></article-title>
<source><![CDATA[Sedimentary Geology]]></source>
<year>2018</year>
<numero>372</numero>
<issue>372</issue>
<page-range>1-24</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ulloa]]></surname>
<given-names><![CDATA[C.E]]></given-names>
</name>
</person-group>
<source><![CDATA[Mapa geológico de la plancha 189 La Palma, Escala 1:100.000]]></source>
<year>1994</year>
<publisher-name><![CDATA[INGEOMINAS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-Ordóñez]]></surname>
<given-names><![CDATA[F.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mineralogia, inclusòes fluidas e gènese de esmeraldas das jazidas de Chivor, Coscuez, Muzo, Pacho e Yacopi, Colombia]]></source>
<year>1993</year>
<publisher-loc><![CDATA[Brasil ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Sào Paulo]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-Ordóñez]]></surname>
<given-names><![CDATA[F.H]]></given-names>
</name>
</person-group>
<source><![CDATA[Esmeraldas Colombianas: Mineralogia, geologia e genese]]></source>
<year>1998</year>
<publisher-loc><![CDATA[Brasil ]]></publisher-loc>
<publisher-name><![CDATA[Universidade de Sao Paulo]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-Ordóñez]]></surname>
<given-names><![CDATA[F.H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características mineralógicas y gemológicas de la aguamarina del distrito minero de Chivor, Colombia]]></article-title>
<source><![CDATA[Geología Colombiana]]></source>
<year>2003</year>
<numero>28</numero>
<issue>28</issue>
<page-range>95-100</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-Ordóñez]]></surname>
<given-names><![CDATA[F.H.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Durán]]></surname>
<given-names><![CDATA[A.F.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Toloza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rotlewicz-Cohen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cedeño-Ochoa]]></surname>
<given-names><![CDATA[C.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alvarado-González]]></surname>
<given-names><![CDATA[H.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Angarita-Sarmiento]]></surname>
<given-names><![CDATA[L.G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mineralogy and fluid inclusions of the Cunas emerald mine, Maripí - Boyacá, Colombia]]></article-title>
<source><![CDATA[Earth Sciences Research Journal]]></source>
<year>2021</year>
<volume>25</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>139-56</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Terraza-Melo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Montoya-Arenas]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<source><![CDATA[La esmeralda de Colombia en su ámbito geológico]]></source>
<year>2011</year>
<publisher-name><![CDATA[INGEOMINAS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Terraza-Melo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Notas sobre el contexto tectonoestratigráfico de formación de las esmeraldas colombianas]]></article-title>
<source><![CDATA[Boletín Geológico]]></source>
<year>2019</year>
<numero>45</numero>
<issue>45</issue>
<page-range>37-48</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="book">
<collab>USGS</collab>
<source><![CDATA[Radioactive elements in Coal and Fly Ash: Abundance, forms, and environmental significance.]]></source>
<year>1997</year>
<publisher-name><![CDATA[U.S. Geological Survey]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Valderrama]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<source><![CDATA[Caracterización petrográfica e interpretación ambiental de la parte inferior y media de la Formación Paja en el municipio de Villanueva, Santander]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
