<?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>S0120-02832022000300065</article-id>
<article-id pub-id-type="doi">10.18273/revbol.v44n3-2022003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Redefinición, correlación e implicaciones geotectónicas del batolito de Ibagué, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Redefinition, correlation and geotectonic implications of the batholith of Ibagué, Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-García]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[Diego Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zapata]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Correa-Martínez]]></surname>
<given-names><![CDATA[Ana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sabrica]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Obando]]></surname>
<given-names><![CDATA[Gloria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Grupo de Estudios Geológicos Especiales  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>44</volume>
<numero>3</numero>
<fpage>65</fpage>
<lpage>93</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-02832022000300065&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-02832022000300065&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-02832022000300065&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Nuevos datos de campo, petrografía, geoquímica y geocronología U-Pb en circón permiten redefinir el batolito de Ibagué y proponer nuevas unidades. El batolito de Ibagué, al norte de la Falla de Ibagué, ha sido dividido en la Metatonalita de Anzoátegui (~194,7 km2) y la Tonalita de Ibagué (-278 km2). Al sur de la falla de Ibagué conserva el nombre de batolito de Ibagué con una extensión de ~3200 km2, debido a la escisión de los gabros de Belalcázar y Los Guayabos de edad Carbonífera, los granitos de Ortega y La Plata de edad Pérmica, y la Cuarzomonzodiorita de Páez de edad Jurásico temprano. La Metatonalita de Anzoátegui y la Tonalita de Ibagué se componen de metatonalitas, tonalitas y granodioritas calco-alcalinas metaluminosas, con edades U-Pb para la Metatonalita de Anzoátegui entre 158,2+1,2/-0,4 y 150,17±0,86 Ma y para la Tonalita de Ibagué entre 145,71+0,72/-1,42 Ma y 138,48±0,95 Ma, Jurásico medio a Cretácico inferior. El batolito de Ibagué está constituido por tonalitas, granodioritas y monzogranitos calco-alcalinos a calco-alcalinos de alto K, metaluminosos y peraluminosos, con edades entre 171,5±1,3 y 137,9±1,0 Ma. El batolito de Ibagué, la Metatonalita de Anzoátegui y la Tonalita de Ibagué son granitoides cálcicos de arco, con anomalías negativas de Nb, Ti y P. La posición geotectónica, la composición petrográfica y química, y las edades de cristalización permitieron correlacionar el batolito de Ibagué, La Metatonalita de Anzoátegui y la Tonalita de Ibagué con los batolitos de Segovia y Los Alisales, la Granodiorita de Siapana, el stock de Payandé, y con unidades volcánicas como el Volcánico de La Malena, las Vulcanitas de Segovia y Chaparral. Con esta correlación se separan unidades que estaban asociadas al batolito de Ibagué que afloran en una posición más oriental, definidas como los cinturones de plutones del carbonífero, Pérmico y Jurásico temprano a medio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract New fieldwork, pétrographie, geochemical, and zircon U-Pb geochronologic data allow us to identify new units and redefine the limits of the Ibagué batholith. The Ibagué batholith, located to the north of the Ibagué Fault, was divided into two geological units: the Anzoátegui Metatonalite (~194.7 km2) and Ibagué Tonalité (~278 km2). To the south of the Ibagué fault, the name Ibagué batholith is maintained, but its original extension changes to ~3200 km2 due to theoccurrence of the Carboniferous Belalcázar and Los Guayabos gabbros, the Permian Ortega and La Plata granites, and the early Jurassic Páez quartz-monzodiorite. The Anzoátegui Metatonalite and Ibagué Tonalite are composed of calc-alkaline and metaluminous metatonalites, tonalites, and granodiorites, yielding U-Pb crystallization ages between 158.2+1.2/-0.4 and 150.17±0.86 Ma, and between 145.71+0.72/-1.42 Ma and 138.48±0.95 Ma, respectively. The Ibagué batholith is constituted by calc-alkaline to high K calc-alkaline, metaluminous and peraluminous, tonalites, granodiorites, and monzogranites, yielding crystallization ages between 171.5±1.3 and 137.9±1.0 Ma. The Ibagué batholith, the Anzoátegui Metatonalite, and the Ibagué Tonalite are calcic granitoids generated in an arc environment, presenting Nb, Ti, and P negative anomalies. The geotectonic position, petrographic and geochemical composition, and crystallization ages allowed us to correlate the Ibagué batholith, the Anzoátegui Metatonalite, and the Ibagué Tonalite with the Segovia and Los Alisales batholiths, the Siapana granodiorite, the Payandé stock, and volcanic units such as the La Malena volcanic rocks, the Segovia and Chaparral vulcanites. This correlation also drives the separation of the Ibagué batolith from other units like the Carboniferous, Permian, and Early to Middle Jurassic plutons cropping out further east.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Magmatismo jurásico]]></kwd>
<kwd lng="es"><![CDATA[Litogeoquímica]]></kwd>
<kwd lng="es"><![CDATA[Datación U-Pb en circón]]></kwd>
<kwd lng="en"><![CDATA[Jurassic magmatism]]></kwd>
<kwd lng="en"><![CDATA[Lithogeochemistry]]></kwd>
<kwd lng="en"><![CDATA[U-Pb zircon dating]]></kwd>
</kwd-group>
</article-meta>
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