<?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>S0120-02832020000100101</article-id>
<article-id pub-id-type="doi">10.18273/revbol.v42n1-2020006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sistemas geotérmicos mejorados: revisión y análisis de casos de estudio]]></article-title>
<article-title xml:lang="en"><![CDATA[Enhanced geothermal systems: review and analysis of case studies]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacio-Villa]]></surname>
<given-names><![CDATA[Maria Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blessent]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Sánchez]]></surname>
<given-names><![CDATA[Jacqueline]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Medellín Programa Ingeniería Ambiental ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>42</volume>
<numero>1</numero>
<fpage>101</fpage>
<lpage>118</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-02832020000100101&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-02832020000100101&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-02832020000100101&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En este artículo se hace una revisión bibliográfica de las características de los EGS, fuentes de energía limpia que prometen ser una alternativa para enfrentar los problemas relacionados con el calentamiento global ocasionados por el uso de combustibles fósiles como el petróleo y el gas natural. Actualmente en Colombia los sistemas geotérmicos de interés son de tipo hidrotermal, por lo que no hay EGS planificados aún, sin embargo, este artículo pretende ser una introducción para el lector interesado en los EGS y ser referencia a futuros proyectos desarrollados en el territorio nacional, describiendo los lugares del mundo más significativos donde se ha hecho uso de esta técnica, junto con su percepción social e impactos asociados. Además, busca analizar las diferencias entre la estimulación hidráulica en los EGS y el fracking utilizado para la extracción de gas de esquisto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This article reviews the characteristics of the EGS, sources of clean energy that promise to be an alternative to face the problems related to global warming caused by the use of fossil fuels like oil and natural gas. Currently in Colombia the geothermal systems of interest are hydrothermal, so there are no plans for the development of EGS yet, however, this article pretends to be an introduction to the reader interested in EGS and to be a reference to future projects developed in the national territory, describing the most significant places in the world where this technique has been used, along with its social perception and associated impacts. In addition, it seeks to analyze the differences between the hydraulic stimulation technique in the EGS and the fracking used for the extraction of shale gas.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Sistemas Geotérmicos Mejorados (EGS)]]></kwd>
<kwd lng="es"><![CDATA[Fracking]]></kwd>
<kwd lng="es"><![CDATA[Impactos ambientales]]></kwd>
<kwd lng="es"><![CDATA[Energía Geotérmica]]></kwd>
<kwd lng="es"><![CDATA[Energía renovable]]></kwd>
<kwd lng="en"><![CDATA[Enhanced Geothermal Systems (EGS)]]></kwd>
<kwd lng="en"><![CDATA[Fracking]]></kwd>
<kwd lng="en"><![CDATA[Environmental Impacts]]></kwd>
<kwd lng="en"><![CDATA[Geothermal Energy]]></kwd>
<kwd lng="en"><![CDATA[Renewable Energy]]></kwd>
</kwd-group>
</article-meta>
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