<?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>S1026-87742015000300492</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Erosión y exhumación de bloques graníticos en La Pedriza del Manzanares, España. Evolución histórica a partir de dataciones relativas]]></article-title>
<article-title xml:lang="en"><![CDATA[Erosion and exhumation of granitic blocks in La Pedriza del Manzanares, Spain. Historical evolution from relative dating]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Rodríguez]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Educación a Distancia Facultad de Ciencias Departamento de Ciencias Analíticas]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>32</volume>
<numero>3</numero>
<fpage>492</fpage>
<lpage>500</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1026-87742015000300492&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1026-87742015000300492&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1026-87742015000300492&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La Pedriza del Manzanares representa un paisaje granítico que está incluido en el Parque Nacional de la Sierra de Guadarrama (Madrid, España). Estos granitos definen un paisaje donde alternan afloramientos de roca inalterada, zonas de regolito, y numerosos bloques que han sido movilizados y parcialmente enterrados por depósitos de ladera. La erosión de los materiales que recubrían dichos bloques ha permitido reconocer varios niveles de pendientes invertidas y tafoni, que se formaron a partir de sucesivos episodios de estabilización del suelo. Relacionando la altura de aparición de las viseras de las pendientes invertidas y/o tafoni con tasas de erosión definidas en zonas climáticas semejantes, se han estimado los tiempos requeridos para la formación de esas morfologías. El método empleado, proporciona una herramienta adecuada para la datación relativa de pendientes invertidas en zonas de características geomorfológicas similares.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT La Pedriza del Manzanares is a granite landscape protected within the Sierra de Guadarrama National Park (Madrid, Spain). These granites create a landscape alternating fresh outcrops, regolith zones and numerous individual boulders that have been transported and partially buried by slope deposits. Erosion of the materials covering these boulders has allowed the identification of several levels of flared slopes and tafoni formed from successive episodes of soil stabilisation. By relating peak height from flared slopes and/or tafoni to the erosion rates for similar climatic areas, we estimated the required time for the formation of these morphologies. The method used provides an adequate tool for the relative dating of slopes in areas of similar geomorphology.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[pendientes invertidas]]></kwd>
<kwd lng="es"><![CDATA[tafoni]]></kwd>
<kwd lng="es"><![CDATA[tasas de erosión]]></kwd>
<kwd lng="es"><![CDATA[meteorización]]></kwd>
<kwd lng="es"><![CDATA[granito]]></kwd>
<kwd lng="es"><![CDATA[La Pedriza del Manzanares]]></kwd>
<kwd lng="en"><![CDATA[slope]]></kwd>
<kwd lng="en"><![CDATA[tafoni]]></kwd>
<kwd lng="en"><![CDATA[erosion rate]]></kwd>
<kwd lng="en"><![CDATA[granite]]></kwd>
<kwd lng="en"><![CDATA[weathering]]></kwd>
<kwd lng="en"><![CDATA[La Pedriza del Manzanares]]></kwd>
</kwd-group>
</article-meta>
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