<?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>S1026-87742017000300274</article-id>
<article-id pub-id-type="doi">10.22201/cgeo.20072902e.2017.3.485</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Pómez Bosque de Tlalpan, producto de una erupción de gran magnitud en el margen suroeste de la cuenca de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Bosque de Tlalpan pumice, product of a large-magnitude eruption at the southwestern margin of the Mexico basin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Fuentes]]></surname>
<given-names><![CDATA[Diana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Luna]]></surname>
<given-names><![CDATA[Angel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Huerta]]></surname>
<given-names><![CDATA[Iván Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Girón-García]]></surname>
<given-names><![CDATA[Patricia]]></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[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Superior de Ingeniería y Arquitectura (ESIA) ]]></institution>
<addr-line><![CDATA[Ciudad 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[Ciudad 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>274</fpage>
<lpage>288</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1026-87742017000300274&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1026-87742017000300274&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1026-87742017000300274&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: El presente trabajo reporta por primera vez la descripción de un depósito de pómez de caída de color blanco que aflora en la parte sur de la cuenca de México, denominado aquí de manera informal como pómez Bosque de Tlalpan (PBT). El afloramiento más representativo se encuentra en el Bosque de Tlalpan, Delegación Tlalpan, de donde toma su nombre. En este sitio el depósito alcanza 3 m de espesor, es masivo, la pómez representa el 80-90 % en volumen, con un predominio de tamaño del lapilli grueso y algunos bloques. La PBT es de composición dacítica (64.9-66 % en peso de SiO2, en base anhidra) con afinidad calcialcalina, con una mineralogía de plagioclasa &gt; anfíbol &gt; ortopiroxeno &gt; biotita, en menor proporción cuarzo, óxidos de Fe-Ti y circón como mineral accesorio, inmersos en una matriz vesicular y vítrea. De acuerdo con el análisis preliminar de afloramientos, el espesor y tamaño de los constituyentes del depósito disminuye hacia el NE, por lo tanto es posible que la fuente de emisión se encuentre hacia el SW del Bosque de Tlalpan. En esta dirección se encuentra el volcán Ajusco (a ~11 km de Bosque de Tlalpan) y el volcán San Miguel, ambos pertenecientes a la Sierra de Las Cruces y posiblemente uno de ellos fue el foco de emisión. La edad del depósito de la PBT fue estimada entre 25,730 ± 130 y 37,450 ± 330 años A.P. mediante el fechamiento por el método de radiocarbono de paleosuelos que subyacen al depósito, la cual ubica el depósito en el Pleistoceno Tardío. Adicionalmente un fechamiento por termoluminiscencia arrojó una edad de 30,300 ± 5,000 años, similar a las edades de radiocarbono, por lo que se puede asegurar que este depósito representa el producto más joven de la Sierra de Las Cruces. A pesar de contar con solo siete afloramientos hasta el momento, se plantea que este depósito fue producido por una erupción de tipo pliniano, ya que los afloramientos descritos son masivos, presentan espesores de alrededor de tres metros y dimensiones de la pómez de lapilli grueso hasta bloques, así como líticos de 3.5 cm de diámetro a 11 km de la posible fuente de emisión, característico para este tipo de depósitos. Se descarta que la fuente de emisión sea alguno de los volcanes monogenéticos del campo volcánico Chichinautzin dado que este tipo de volcanes no producen erupciones plinianas y son de composición relativamente básica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: In this contribution we describe a white pumice fall deposit, informally named pómez Bosque de Tlalpan (PBT), found in several outcrops in the southern Mexico basin. The most representative sequence occurs at the Bosque de Tlalpan park, Delegación Tlalpan, in Mexico City. In this site the deposit is 3 m thick, massive, and contains 80-90 vol. % of pumice clasts, predominantly of coarse lapilli-sized and some block-sized fragments. The PBT has a dacitic composition (64.9-66 wt. % SiO2, on anhydrous basis) of calc-alkaline affinity, and a mineral assemblage represented by plagioclase &gt; amphibole &gt; orthopyroxene &gt; biotite, ±Fe-Ti oxides, with quartz in lesser proportions, and zircon as accesory mineral, in a vesicular and glassy matrix. According to data collected from seven outcrops, thickness and clast size of the deposit decrease towards the NE and therefore the vent source should be located to the SW of Bosque de Tlalpan. Possible sources are the volcanoes Ajusco and San Miguel, which are part of the Sierra de Las Cruces volcanic range, and are located in this direction at ~11 km from Bosque de Tlalpan. The age of the PBT deposit was determined by radiocarbon dating of underlying paleosoils that yielded 25,730 ± 130 to 37,450 ± 330 yrs B.P. (Late Pleistocene). Additionally, thermoluminscence dating of one sample yielded an age of 30,300 ± 5,000 years, similar to the radiocarbon ages. Hence, the PBT represents the youngest reported deposit from the Sierra de Las Cruces volcanic range. Although only seven outcrops were described in this work, we interpret the PBT deposit as produced by a plinian-type eruption, based on its massive structure, its ca. 3 m thickness, and the presence of pumice clasts in coarse lapilli to block sizes, as well as 3.5 cm sized lithics, at 11 km from the possible vent source, characteristic of this kind of deposits. We discard the monogenetic volcanoes from the Chichinautzin volcanic field as the vent source of the PBT deposit, because this kind of volcanoes is relatively mafic in composition and do not produce plinian-type deposits.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[erupción pliniana]]></kwd>
<kwd lng="es"><![CDATA[pómez Bosque de Tlalpan]]></kwd>
<kwd lng="es"><![CDATA[Pleistoceno Tardío]]></kwd>
<kwd lng="es"><![CDATA[Sierra de Las Cruces]]></kwd>
<kwd lng="es"><![CDATA[cuenca de México]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[plinian eruption]]></kwd>
<kwd lng="en"><![CDATA[Bosque de Tlalpan pumice]]></kwd>
<kwd lng="en"><![CDATA[Late Pleistocene]]></kwd>
<kwd lng="en"><![CDATA[Sierra de Las Cruces]]></kwd>
<kwd lng="en"><![CDATA[basin of México]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguirre-Díaz]]></surname>
<given-names><![CDATA[G.J.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Martínez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rendón-Márquez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[La Caldera de La Catedral, Sierra de Las Cruces, una caldera al norponiente de la Ciudad de México]]></source>
<year>2006</year>
<conf-name><![CDATA[ Reunión Anual de la Unión Geofísica Mexicana]]></conf-name>
<conf-loc>Puerto Vallarta, Jal., México </conf-loc>
<page-range>160-1</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aitken]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Thermoluminescence Dating]]></source>
<year>1985</year>
<publisher-loc><![CDATA[Oxford, London ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez-Selem]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The 10.5 ka Plinian eruption of Nevado de Toluca volcano, Mexico: Stratigraphy and hazard implications]]></article-title>
<source><![CDATA[Geological Society of America Bulletin]]></source>
<year>2003</year>
<volume>115</volume>
<page-range>230-48</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Palomo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Capra]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Rueda]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Late Pleistocene flank collapse of Zempoala Volcano (Central Mexico) and the role of fault reactivation]]></article-title>
<source><![CDATA[Journal of Volcanology and Geothermal Research]]></source>
<year>2008</year>
<volume>177</volume>
<page-range>944-58</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales-Casique]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Benowitz]]></surname>
<given-names><![CDATA[J.A:]]></given-names>
</name>
<name>
<surname><![CDATA[Rangel]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Escolero]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[New constraints on the subsurface geology of the Mexico City Basin: The San Lorenzo Tezonco deep well, on the basis of 40Ar/39Ar geochronology and whole-rock chemistry]]></article-title>
<source><![CDATA[Journal of Volcanology and Geothermal Research]]></source>
<year>2013</year>
<volume>266</volume>
<page-range>34-49</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Lassiter]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Benowitz]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-Espinosa]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[40Ar/39Ar dating, geochemistry, and isotopic analyses of the Quaternary Chichinautzin Volcanic Field, south of Mexico City: Implications for timing, effusion rate, and distribution of the volcanism]]></article-title>
<source><![CDATA[Bulletin of Volcanology]]></source>
<year>2013</year>
<volume>75</volume>
<page-range>774</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Salinas]]></surname>
<given-names><![CDATA[J.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías-Romo]]></surname>
<given-names><![CDATA[M.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales-Casique]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Benowitz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Escolero]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Lenhardt]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geología y estratigrafía del pozo profundo San Lorenzo Tezonco y de sus alrededores, sur de la Cuenca de México]]></article-title>
<source><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></source>
<year>2015</year>
<volume>67</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>123-43</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bloomfield]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A late-Quaternary monogenetic volcano field in central Mexico]]></article-title>
<source><![CDATA[Geologische Rundschau]]></source>
<year>1975</year>
<volume>64</volume>
<page-range>476-97</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bloomfield]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez-Rubio]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wilson]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plinian Eruptions of Nevado de Toluca]]></article-title>
<source><![CDATA[Geologische Rundschau]]></source>
<year>1977</year>
<volume>66</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>120-46</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brown]]></surname>
<given-names><![CDATA[E.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Werne]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lozano-García]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Caballero-Miranda]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega-Guerrero]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Cabral-Cano]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Valero-Garcés]]></surname>
<given-names><![CDATA[B.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Schwalb]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Arciniega-Ceballos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Workshop Reports]]></article-title>
<source><![CDATA[Scientific Drilling]]></source>
<year>2012</year>
<numero>14</numero>
<issue>14</issue>
<page-range>72-5</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caballero]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega-Guerrero]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lake levels since about 40,000 years ago at Lake Chalco, near Mexico City]]></article-title>
<source><![CDATA[Quaternary Research]]></source>
<year>1998</year>
<volume>50</volume>
<page-range>69-79</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cadoux]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Missenard]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Serrano]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Guillou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Trenchward Plio-Quaternary volcanism migration in the Trans-Mexican Volcanic Belt: the case of the Sierra Nevada range]]></article-title>
<source><![CDATA[Geological Magazine]]></source>
<year>2011</year>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cioni]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Marianelli]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Santacroce]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Sbrana]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plinian and Subplinian eruptions]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Sigurdsson]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Encyclopedia of Volcanoes]]></source>
<year>2000</year>
<page-range>477-94</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Cserna]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[De la Fuente-Duch]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios-Nieto]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Triay]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Mitre-Salazar]]></surname>
<given-names><![CDATA[L.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mota-Palomino]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estructura geológica, gravimetría, sismicidad y relaciones neotectónicas regionales de la cuenca de México]]></article-title>
<source><![CDATA[Boletín del Instituto de Geología, Universidad Nacional Autónoma de México]]></source>
<year>1988</year>
<volume>104</volume>
<page-range>1-71</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fries]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Bosquejo Geológico de la región entre México, D.F. y Taxco Guerrero]]></source>
<year>1956</year>
<conf-name><![CDATA[ Congreso Geológico Internacional, 20]]></conf-name>
<conf-loc>México, D.F. </conf-loc>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fries]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geología del Estado de Morelos y de partes adyacentes de México y Guerrero. Región central meridional de México]]></article-title>
<source><![CDATA[Boletín del Instituto de Geología, Universidad Nacional Autónoma de México]]></source>
<year>1960</year>
<volume>60</volume>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Palomo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Tolson]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Valdez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Volcanic stratigraphy and geological evolution of the Apan región, east-central sector of the Trans-Mexican Volcanic Belt]]></article-title>
<source><![CDATA[Geofísica Internacional]]></source>
<year>2008</year>
<volume>41</volume>
<page-range>133-50</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guérin]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Mercier]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Adamiec]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dose-rate conversion factors: update]]></article-title>
<source><![CDATA[Ancient TL]]></source>
<year>2011</year>
<volume>29</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5-8</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Le Bas]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Le Maitre]]></surname>
<given-names><![CDATA[R.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Streckaisen]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Zanetti]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A chemical classification of volcanic rocks based on the total alkali-silica diagram]]></article-title>
<source><![CDATA[Journal of Petrology]]></source>
<year>1986</year>
<volume>27</volume>
<page-range>745-50</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lenhardt]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Böhnel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Wemmer]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Alvarado]]></surname>
<given-names><![CDATA[I.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hornung]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinderer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Petrology, magnetostratigraphy and geochronology of the Miocene volcaniclastic Tepoztlán Formation: implications for the initiation of the Transmexican Volcanic Belt (Central Mexico)]]></article-title>
<source><![CDATA[Bulletin of Volcanology]]></source>
<year>2010</year>
<volume>72</volume>
<page-range>817-32</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano-Barraza]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geología de la Sierra de Guadalupe]]></source>
<year>1968</year>
<publisher-loc><![CDATA[México, D.F. ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Escuela Superior de Ingeniería y Arquitectura (ESIA)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano-García]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Palinología y paleoambientes pleistocénicos de la Cuenca de México]]></article-title>
<source><![CDATA[Geofísica Internacional]]></source>
<year>1989</year>
<volume>28</volume>
<page-range>335-62</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano-García]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega-Guerrero]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Late Quaternary environmental changes of the central part of the Basin of Mexico: Correlation between Texcoco and Chalco basins]]></article-title>
<source><![CDATA[Review of Palaeobotany and Palynology]]></source>
<year>1998</year>
<volume>99</volume>
<page-range>77-93</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano-García]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega-Guerrero]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Caballero-Miranda]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Urrutia-Fucugauchi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Late Pleistocene and Holocene paleoenvironments of Chalco Lake, central Mexico]]></article-title>
<source><![CDATA[Quaternary Research]]></source>
<year>1993</year>
<volume>40</volume>
<page-range>332-42</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano-Santacruz]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernal]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of a new set of eight geochemical reference materials for XRF major and trace element analysis]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Geológicas]]></source>
<year>2005</year>
<volume>22</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>329-44</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Macias]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Tenorio]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Rueda]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-Agustin]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Pizaña]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Avellán]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geology and geochronology of Tlaloc, Telapón, Iztaccíhuatl, and Popocatépetl volcanoes, Sierra Nevada, central Mexico]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Aranda-Gómez]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Tolson]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Molina-Garza]]></surname>
<given-names><![CDATA[R.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Southern Cordillera and Beyond]]></source>
<year>2012</year>
<volume>25</volume>
<page-range>163-93</page-range><publisher-name><![CDATA[Geological Society of America Field Guide]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Márquez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oyarzu]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Doblas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Verma]]></surname>
<given-names><![CDATA[S.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Alcalic (ocean-island basalt type) and calc-alkaline volcanism in the Mexican Volcanic Belt: A case for plume-related magmatism and propagating rifting at an active margin?]]></article-title>
<source><![CDATA[Geology]]></source>
<year>1999</year>
<volume>27</volume>
<page-range>51-4</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martin Del Pozzo]]></surname>
<given-names><![CDATA[A.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monogenetic volcanism in Sierra Chichinautzin, Mexico]]></article-title>
<source><![CDATA[Bulletin of Volcanology]]></source>
<year>1982</year>
<volume>45</volume>
<page-range>9-24</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mejia]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Böhnel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Opdyke]]></surname>
<given-names><![CDATA[N.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega-Rivera]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[J.K.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Aranda-Gómez]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Paleosecular variation and time-averaged field recorded in late Pliocene-Holocene lava flows from Mexico]]></article-title>
<source><![CDATA[Geochemistry Geophysics Geosystems]]></source>
<year>2005</year>
<volume>6</volume>
<page-range>1-19</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mooser]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Historia tectónica de la Cuenca de México]]></article-title>
<source><![CDATA[Boletin de la Asociación Mexicana de Geólogos Petroleros]]></source>
<year>1963</year>
<volume>15</volume>
<page-range>239-45</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mooser]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Historia geológica de la Cuenca de México, en Memoria de las obras de drenaje profundo del Distrito Federal]]></source>
<year>1975</year>
<volume>1</volume>
<page-range>7-38</page-range><publisher-loc><![CDATA[México, D.F. ]]></publisher-loc>
<publisher-name><![CDATA[Departamento del Distrito Federal]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mora-Alvarez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Caballero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Urrutia-Fucugauchi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Uchiumi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Southward migration of volcanic activity in the Sierra de Las Cruces, Basin of Mexico. A preliminary K-Ar dating and paleomagnetic study]]></article-title>
<source><![CDATA[Geofísica Internacional]]></source>
<year>1991</year>
<volume>30</volume>
<page-range>61-70</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mori]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Tuena]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cai]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Goldstein]]></surname>
<given-names><![CDATA[S.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of prolonged flat subduction on the Miocene magmatic record of the central Trans-Mexican Volcanic Belt]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>2007</year>
<volume>244</volume>
<page-range>452-73</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nixon]]></surname>
<given-names><![CDATA[G.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The geology of Iztaccíhuatl volcano and adjacent areas of the Sierra Nevada and Valley of Mexico]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Nixon]]></surname>
<given-names><![CDATA[G.T.]]></given-names>
</name>
</person-group>
<source><![CDATA[The geology of Iztaccíhuatl volcano and adjacent areas of the Sierra Nevada and Valley of Mexico]]></source>
<year>1989</year>
<page-range>1-58</page-range><publisher-name><![CDATA[Geological Society of America]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Osete]]></surname>
<given-names><![CDATA[M.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruíz-Martínez]]></surname>
<given-names><![CDATA[V.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Caballero]]></surname>
<given-names><![CDATA[M.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Galindo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Urrutia-Fucugauchi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Tarling]]></surname>
<given-names><![CDATA[H.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Southward migration of continental volcanic activity in the Sierra de Las Cruces, Mexico: Paleomagnetic and radiometric evidence]]></article-title>
<source><![CDATA[Tectonophysics]]></source>
<year>2000</year>
<volume>318</volume>
<page-range>201-15</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="">
<collab>PEMEX (Petróleos Mexicanos)</collab>
<source><![CDATA[Informe geológico de los pozos Mixhuca-1, Tulyehualco-1, Copilco-1 y Roma]]></source>
<year>1987</year>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez-Cruz]]></surname>
<given-names><![CDATA[G.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio sismológico de re&#64258;exión del subsuelo de la Ciudad de México]]></source>
<year>1988</year>
<publisher-loc><![CDATA[México D.F. ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pyle]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Thickness, volume and grainsize of tephra fall deposits]]></article-title>
<source><![CDATA[Bulletin of Volcanology]]></source>
<year>1989</year>
<volume>51</volume>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez-Elizarrarás]]></surname>
<given-names><![CDATA[S.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Siebe]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Komorowski]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Abrams]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Quetzalapa Pumice: a voluminous late Pleistocene rhyolite deposit in the eastern Trans-Mexican Volcanic Belt]]></article-title>
<source><![CDATA[Journal of Volcanology and Geothermal Research]]></source>
<year>2002</year>
<volume>113</volume>
<page-range>177-212</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-Terán]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geología del Complejo Volcánico San Miguel, al sur poniente de la Cuenca de México]]></source>
<year>2001</year>
<publisher-loc><![CDATA[México D.F. ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Saunders]]></surname>
<given-names><![CDATA[A.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Tarney]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Weaver]]></surname>
<given-names><![CDATA[S.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transversal geochemical variations across the Antarctic Peninsula: implication for the genesis of calc-alkaline magmas]]></article-title>
<source><![CDATA[Earth and Planetary Sciences Letters]]></source>
<year>1980</year>
<volume>46</volume>
<page-range>344-60</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siebe]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Age and archaelogical implications of Xitle volcano, southwestern Basin of Mexico City]]></article-title>
<source><![CDATA[Journal of Volcanology and Geothermal Research]]></source>
<year>2000</year>
<volume>104</volume>
<page-range>45-64</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siebe]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Volcanic hazards in the Mexico City metropolitan area from eruptions at Popocatépetl, Nevado de Toluca, and Jocotitlán stratovolcanoes and monogenetic scoria cones in the Sierra Chichinautzin Volcanic Field]]></source>
<year>2004</year>
<volume>77</volume>
<conf-name><![CDATA[ Penrose Conference, Neogene-Quaternary Continental Margin Volcanism, State of Puebla, México, Field Guide]]></conf-name>
<conf-loc>Boulder, Colorado </conf-loc>
</nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siebe]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Macias]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Abrams]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodriguez]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chacko]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Quaternary explosive volcanism and pyroclastic deposits in east central mexico: implications for future hazards]]></source>
<year>1995</year>
<conf-name><![CDATA[ Annual Meeting of the Geological Society of America, Field Trip Guidebook]]></conf-name>
<conf-loc>Louisiana, United States </conf-loc>
<page-range>1-48</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sosa-Ceballos]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Tenorio]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Schaaf]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Solís-Pichardo]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El Ventorrillo, a paleostructure of Popocatépetl volcano]]></article-title>
<source><![CDATA[Insights from Geochronology and Geochemistry]]></source>
<year>2015</year>
<volume>77</volume>
<page-range>1-20</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[McDonough]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chemical and isotopic systematics of oceanic basalts: implications for mantle compositions and processes]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Saunders]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Norry]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Magmatism in ocean basins]]></source>
<year>1989</year>
<volume>42</volume>
<page-range>313-45</page-range><publisher-name><![CDATA[Geological Society of London]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vázquez-Sánchez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaimes-Palomera]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geología de la Cuenca de México]]></article-title>
<source><![CDATA[Geofísica Internacional]]></source>
<year>1989</year>
<volume>28</volume>
<page-range>133-74</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
