<?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>1405-3322</journal-id>
<journal-title><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Soc. Geol. Mex]]></abbrev-journal-title>
<issn>1405-3322</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Geológica Mexicana A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-33222021000100010</article-id>
<article-id pub-id-type="doi">10.18268/bsgm2021v73n1a011020</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Aspects of the Hydrogeology of southern Campeche and Quintana Roo, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Aspectos de la hidrogeología del sur de Campeche y Quintana Roo, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[Eugene C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leal-Bautista]]></surname>
<given-names><![CDATA[Rosa M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Olimán]]></surname>
<given-names><![CDATA[Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Sánchez]]></surname>
<given-names><![CDATA[Joan A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wagner]]></surname>
<given-names><![CDATA[Nikklas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Northern Illinois University Geology and Environmental Geosciences ]]></institution>
<addr-line><![CDATA[DeKalb Illinois]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Innovación e Investigación para el Desarrollo Sustentable  ]]></institution>
<addr-line><![CDATA[ Quintana Roo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro de Investigación Científica de Yucatán, A.C. Unidad de Ciencias del Agua ]]></institution>
<addr-line><![CDATA[Cancún Quintana Roo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,El Colegio de la Frontera Sur Departamento de Ciencias de la Sustentabilidad Grupo de Biotecnología Ambiental]]></institution>
<addr-line><![CDATA[Chetumal Quintana Roo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Chemtech Services, Inc  ]]></institution>
<addr-line><![CDATA[Lockport IL]]></addr-line>
<country>United States</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>73</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-33222021000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-33222021000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-33222021000100010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This paper explores strong indirect evidence for existence of a previously unrecognized deep groundwater aquifer in southern Quintana Roo, adjacent parts of Campeche, and (probably) northern Belize. The region contains rocks of Cretaceous-to-Holocene age, including: 1) an up-thrust block of the late Cretaceous carbonate known in Belize as the Barton Creek Formation, which is the oldest formation exposed in the Mexican Yucatán Peninsula, 2) the Cretaceous/ Paleogene Albion Formation consisting of weakly consolidated Chicxulub impact air-fall deposits, 3) the Paleocene-Eocene Icaiche Formation, containing a massive 25-35 m thick gypsum member that crops out over an estimated area of more than 10,000 km2 in the elevated interior region of the northern lowlands, and 4) younger rocks of relatively low permeability that flank the region on the east. Hydrogeology is dominated by ground-water and surface flow in and adjacent to the Rio Hondo Fault Zone (RHFZ) and by recharge in the elevated interior region. Groundwater in the elevated region has a high sulfate concentration and is approximately saturated with gypsum dissolved from the Icaiche Formation. High-sulfate ground-water and river water with a slightly lower gypsum saturation index than in the elevated region also occurs in the RHFZ, but no water of comparably high sulfate content is present elsewhere in the study area. This suggests that the elevated region is a recharge zone for high-sulfate groundwater carried eastward beneath a 50 km gap by a deep, previously unrecognized aquifer and then discharged into the RHFZ. Based on chemistry of chloride, sulfate and other ions it is proposed here that a deep aquifer comprising the strongly weathered upper surface of the Barton Creek Formation plus the overlying weakly consolidated Albion Formation connects the elevated recharge area with the RHFZ discharge area. If this composite permeable zone does extend westward beneath the elevated recharge zone, it is probably an excellent aquifer.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Este documento, explora la existencia indirecta de un acuífero profundo no reconocido previamente en el sur de Quintana Roo, partes adyacentes de Campeche, y probablemente norte de Belice. La región contiene rocas del Cretáceo al Holoceno, incluyendo: 1) un bloque elevado carbonatado del Cretácico conocido en Belice como la Formación Barton Creek, la cual es la Formación más antigua expuesta en la parte mexicana de la Península de Yucatán, 2) la Formación Albión Cretácico/Paleógeno consiste en depósitos pobremente cementados de residuos aéreos del Impacto del Chicxulub, 3) Formación Icaiche Paleoceno-Eoceno, notable por su componente masivo de yeso (25-35 m de espesor) un afloramiento aproximado de 10,000 km2 en la Región Interior Elevada (RIE) de las tierras bajas del norte, y 4) rocas más jóvenes de permeabilidad relativamente baja, en el flanco este de dicha región. Hidrogeológicamente dominan flujos superficiales y de agua subterránea adyacentes a la Zona de Falla del Rio Hondo (ZFRH) y la recarga en la RIE. Debido al yeso disuelto de la Formación Icaiche el agua subterránea está casi saturada en sulfato. A su vez esta concentración de sulfato en agua subterránea de ZFRH, es menor comparada con el agua de rio; ambas indican un índice de saturación de yeso menor y diferente al de la RIE. Sin embargo, no se detectan contenidos tan altos de sulfato en otras partes de la zona de estudio. Basados en la geoquímica de los iones cloruro y sulfato se propone la existencia de un acuífero profundo que comprende la superficie superior fuertemente erosionada de la Formación Barton Creek, sobrecubierta por la consolidación débil de la Formación Albion conectando la región elevada con la descarga en ZFRH. Si esta zona permeable compuesta estará representando un excelente acuífero extendiendose hacia el oeste debajo de la zona de recarga de la región elevada.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Hydrogeology]]></kwd>
<kwd lng="en"><![CDATA[Icaiche Formation]]></kwd>
<kwd lng="en"><![CDATA[Sulfates]]></kwd>
<kwd lng="en"><![CDATA[Deep aquifer]]></kwd>
<kwd lng="en"><![CDATA[Yucatan Peninsula]]></kwd>
<kwd lng="es"><![CDATA[Hidrogeología]]></kwd>
<kwd lng="es"><![CDATA[sulfatos]]></kwd>
<kwd lng="es"><![CDATA[Formación Icaiche]]></kwd>
<kwd lng="es"><![CDATA[acuífero profundo]]></kwd>
<kwd lng="es"><![CDATA[Península de Yucatán]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Back]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hanshaw]]></surname>
<given-names><![CDATA[B.B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of chemical hydrogeology of the carbonate peninsulas of Florida and Yucatan]]></article-title>
<source><![CDATA[Journal of Hydrology]]></source>
<year>1970</year>
<volume>10</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>330-68</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Back]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hanshaw]]></surname>
<given-names><![CDATA[B.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Pyle]]></surname>
<given-names><![CDATA[T.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Plummer]]></surname>
<given-names><![CDATA[L.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Weidie]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geochemical Significance of Groundwater Discharge and Carbonate Solution to the Formation of Caleta Xel Ha, Quintana Roo, Mexico]]></article-title>
<source><![CDATA[Water Resources Research]]></source>
<year>1979</year>
<volume>15</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1521-35</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Back]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hanshaw]]></surname>
<given-names><![CDATA[B.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Herman]]></surname>
<given-names><![CDATA[J.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Van Driel]]></surname>
<given-names><![CDATA[J.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Differential dissolution of a Pleistocene reef in the ground-water mixing zone of coastal Yucatan, Mexico]]></article-title>
<source><![CDATA[Geology]]></source>
<year>1986</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>137-40</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bauer-Gottwein]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Gondwe]]></surname>
<given-names><![CDATA[R.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Charvet]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Marín]]></surname>
<given-names><![CDATA[L.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Rebolledo-Vieyra]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Merediz-Alonso]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Review: The Yucatán Peninsula karst aquifer, Mexico]]></article-title>
<source><![CDATA[Hydrogeology Journal]]></source>
<year>2011</year>
<volume>19</volume>
<page-range>507-24</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beach]]></surname>
<given-names><![CDATA[T.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Luzzadder-Beach]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cook]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Dunning]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Kennett]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Krause]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Terry]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Trein]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Valdez]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ancient Maya impacts on the Earth's surface: An Early Anthropocene analog]]></article-title>
<source><![CDATA[Quaternary Science Reviews]]></source>
<year>2015</year>
<volume>124</volume>
<page-range>1-30</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Butterlin]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bonet]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Información básica para la interpretación geohidrológica de la península de Yucatán]]></source>
<year>1960</year>
<publisher-loc><![CDATA[México D.F., México ]]></publisher-loc>
<publisher-name><![CDATA[Reporte de la Secretaría de Recursos Hidráulicos]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carrillo]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Johns]]></surname>
<given-names><![CDATA[E.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[R.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lamkin]]></surname>
<given-names><![CDATA[J.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Largier]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pathways and hydrography in the Mesoamerican Barrier Reef System Part 2: Water masses and thermohaline structure]]></article-title>
<source><![CDATA[Continental Shelf Research]]></source>
<year>2016</year>
<volume>120</volume>
<page-range>41-58</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Domínguez]]></surname>
<given-names><![CDATA[M. del R.]]></given-names>
</name>
<name>
<surname><![CDATA[Folan]]></surname>
<given-names><![CDATA[WJ.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Calakmul, México: Aguadas, bajos, precipitación y asentamiento en el Petén Campechano]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Laporte]]></surname>
<given-names><![CDATA[J.P]]></given-names>
</name>
<name>
<surname><![CDATA[Escobedo]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[IX Simposio de Investigaciones Arqueológicas en Guatemala, Nacional de Arqueología y Etnología]]></source>
<year>1996</year>
<page-range>147-73</page-range><publisher-loc><![CDATA[Guatemala, Guatemala ]]></publisher-loc>
<publisher-name><![CDATA[Ministerio de Cultura y Deportes]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dunning]]></surname>
<given-names><![CDATA[N.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Beach]]></surname>
<given-names><![CDATA[T.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Luzzadder-Beach]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kax and kol: Collapse and resilience in lowland Maya civilization]]></article-title>
<source><![CDATA[Proceedings of National Academy of Sciences]]></source>
<year>2012</year>
<volume>109</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>3652-7</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dunning]]></surname>
<given-names><![CDATA[N.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Brewer]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Beach]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Luzzadder Beach]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Scarborough]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ancient Water Collection and Storage in the Elevated Interior Region of the Maya Lowlands]]></source>
<year>2016</year>
<conf-name><![CDATA[ 81Annual Meeting of the Society for American Archaeology]]></conf-name>
<conf-loc>Orlando, Florida </conf-loc>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gondwe]]></surname>
<given-names><![CDATA[B. R. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Ottowitz]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Supper]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Motschka]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Merediz-Alonso]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Bauer-Gottwein]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Regional-scale airborne electromagnetic surveying of the Yucatan karst aquifer (Mexico): geological and hydrogeological interpretation]]></article-title>
<source><![CDATA[Hydrogeology Journal]]></source>
<year>2012</year>
<volume>20</volume>
<page-range>1407-25</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hanshaw]]></surname>
<given-names><![CDATA[B. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Back]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chemical mass-wasting of the northern Yucatan Peninsula by groundwater dissolution]]></article-title>
<source><![CDATA[Geology]]></source>
<year>1980</year>
<volume>8</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>222-4</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[King Jr]]></surname>
<given-names><![CDATA[D. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Petruny]]></surname>
<given-names><![CDATA[L.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Pope]]></surname>
<given-names><![CDATA[K.O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Shallow marine facies of the Orange Walk Grou, Miocene-Pliocene, northern Belize (Central America)]]></article-title>
<source><![CDATA[GCAGS/GCSSEPM Transactions]]></source>
<year>2003</year>
<volume>53</volume>
<page-range>384-97</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[King Jr]]></surname>
<given-names><![CDATA[D. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Pope]]></surname>
<given-names><![CDATA[K.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Petruny]]></surname>
<given-names><![CDATA[L.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stratigraphy of Belize, North of the 17th Parallel]]></article-title>
<source><![CDATA[Gulf Coast Association of Geological Societies Transactions]]></source>
<year>2004</year>
<volume>54</volume>
<page-range>289-304</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[King Jr]]></surname>
<given-names><![CDATA[D. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Petruny]]></surname>
<given-names><![CDATA[L.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stratigraphy of the Barton Creek Formation, Corozal Basin, Northern Belize]]></article-title>
<source><![CDATA[Gulf Coast Association of Geological Societies Transactions]]></source>
<year>2014</year>
<volume>64</volume>
<page-range>215-28</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leal-Bautista]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Cejudo]]></surname>
<given-names><![CDATA[E.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Reporte de campaña-zona 2: Felipe Carrillo-Catmis-Chunhuhub, Quintana Roo, México]]></source>
<year>2017</year>
<publisher-name><![CDATA[Centro de Investigación Científica de Yucatán Unidad de Ciencias del Agua]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leal-Bautista]]></surname>
<given-names><![CDATA[RM.]]></given-names>
</name>
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-Alvarado]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alzate-Gavira]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dominguez]]></surname>
<given-names><![CDATA[O.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Tapia-Tussell]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Karst Drainage of Lake Chakanbacán and its relation to Icaiche Formation]]></article-title>
<source><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></source>
<year>2021</year>
<volume>73</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Ramos]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estudio Geológico de la Península de Yucatán]]></article-title>
<source><![CDATA[Boletín de la Asociación Mexicana de Geólogos Petroleros]]></source>
<year>1973</year>
<volume>25</volume>
<page-range>25-72</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Matheny]]></surname>
<given-names><![CDATA[R.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Maya Lowland Hydraulic Systems]]></article-title>
<source><![CDATA[Science]]></source>
<year>1976</year>
<volume>193</volume>
<page-range>639-46</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Matheny]]></surname>
<given-names><![CDATA[R.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Gurr]]></surname>
<given-names><![CDATA[D.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Forsyth]]></surname>
<given-names><![CDATA[D.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hauck]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Investigations at Edzna, Campeche, Mexico: The Hydraulic System]]></source>
<year>1983</year>
<publisher-loc><![CDATA[Provo, Utah, USA ]]></publisher-loc>
<publisher-name><![CDATA[Brigham Young University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marin]]></surname>
<given-names><![CDATA[L. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Field investigations and numerical simulation of ground-waterflow in the karstic aquifer of northwestern Yucatan, Mexico]]></source>
<year>1990</year>
<publisher-loc><![CDATA[DeKalb ]]></publisher-loc>
<publisher-name><![CDATA[Northern Illinois University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ocampo]]></surname>
<given-names><![CDATA[A. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pope]]></surname>
<given-names><![CDATA[K.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Fischer]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ejecta blanket deposits of the Chicxulub crater from Albion Island, Belize]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Ryder]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Fastovsky]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gartner]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Cretaceous-Tertiary event and other catastrophes in Earth history]]></source>
<year>1996</year>
<volume>307</volume>
<page-range>75-88</page-range><publisher-loc><![CDATA[Boulder, Colorado ]]></publisher-loc>
<publisher-name><![CDATA[Geological Society of America]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parkhurst]]></surname>
<given-names><![CDATA[D.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[User's guide to PHREEQC - A computer program for speciation, reaction-path, advective transport and inverse geochemical calculations]]></source>
<year>1995</year>
<publisher-name><![CDATA[U.S. Geological Survey]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pedersen]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Aspects of the hydrogeology and geochemistry of the karst aquifer system, Yucatan Peninsula, Mexico]]></source>
<year>2007</year>
<publisher-loc><![CDATA[DeKalb, IL ]]></publisher-loc>
<publisher-name><![CDATA[Northern Illinois University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez-Ceballos]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco-Ávila]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Euan-Ávila]]></surname>
<given-names><![CDATA[J.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Arana]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Regionalization based on water chemistry and physicochemical traits in the ring of cenotes, Yucatan, Mexico]]></article-title>
<source><![CDATA[Journal of Cave and Karst Studies]]></source>
<year>2012</year>
<volume>74</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>90-102</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Olimán]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Marin]]></surname>
<given-names><![CDATA[L. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The hydrogeochemistry of the karst aquifer system of the northern Yucatan Peninsula, Mexico]]></article-title>
<source><![CDATA[International Geology Review]]></source>
<year>2002</year>
<volume>44</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>191-221</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Paytan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pedersen]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Olimán]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Groundwater geochemistry of the Yucatan Peninsula, Mexico: constraints on stratigraphy and hydrogeology]]></article-title>
<source><![CDATA[Journal Hydrogeology]]></source>
<year>2009</year>
<volume>367</volume>
<page-range>27-40</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Olimán]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wagner]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Groundwater and surface water geochemistry of Cl, SO4, and Sr in Campeche and southern Quintana Roo]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Oswald]]></surname>
<given-names><![CDATA[Ú.]]></given-names>
</name>
</person-group>
<source><![CDATA[Water Research in Mexico: Scarcity, Degradation, Stress, Conflicts, Management and Policy]]></source>
<year>2011</year>
<page-range>87-97</page-range><publisher-loc><![CDATA[Berlin, Germany ]]></publisher-loc>
<publisher-name><![CDATA[Springer-Verlag]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Leal-Bautista]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Olimán]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wagner]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Icaiche formation: unacknowledged contributor to Yucatán hydrogeology and geomorphology]]></article-title>
<source><![CDATA[The 130th Annual Meeting of Geological Society of America in Indianapolis]]></source>
<year>2018</year>
<numero>75</numero>
<issue>75</issue>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Olimán]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Leal-Bautista]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dunning]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Icaiche Formation: Major contributor to the stratigraphy, hydrogeochemistry and geomorphology of the northern Yucatán peninsula, Mexico]]></article-title>
<source><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></source>
<year>2019</year>
<volume>71</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>741-60</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peterson]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Petroleum geology and resources of southeastern Mexico, northern Guatemala, and Belize]]></source>
<year>1983</year>
<numero>760</numero>
<issue>760</issue>
<publisher-loc><![CDATA[Alexandria, VA, USA ]]></publisher-loc>
<publisher-name><![CDATA[U.S. Geological Survey Circular]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pope]]></surname>
<given-names><![CDATA[K.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Ocampo]]></surname>
<given-names><![CDATA[A.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Fischer]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Vega]]></surname>
<given-names><![CDATA[F.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ames]]></surname>
<given-names><![CDATA[D.E.]]></given-names>
</name>
<name>
<surname><![CDATA[King Jr]]></surname>
<given-names><![CDATA[D.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Wachtman]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kletetschka]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Chicxulub impact ejecta deposits in southern Quintana Roo, México, and central Belize]]></source>
<year>2005</year>
<volume>384</volume>
<page-range>171-90</page-range><publisher-name><![CDATA[Geological Society of America]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosencrantz]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Structure and tectonics of the Yucatan Basin, Caribbean Sea, as determined from seismic reflection studies]]></article-title>
<source><![CDATA[Tectonics]]></source>
<year>1990</year>
<volume>9</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1037-59</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez-Sánchez]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Legorreta]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco-Ávila]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Herrera]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Carrillo-Bribiezca]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización hidrogeoquímica de las aguas subterráneas del sur del Estado de Quintana Roo, México]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Geológicas]]></source>
<year>2015</year>
<volume>32</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>62-76</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Legorreta]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco-Ávila]]></surname>
<given-names><![CDATA[J.G.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Herrera]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Carrillo-Bribiezca]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Calidad del agua subterránea: acuífero sur de Quintana Roo, Mexico]]></article-title>
<source><![CDATA[Tecnología y Ciencias del Agua]]></source>
<year>2016</year>
<volume>7</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>75-96</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schulte]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Alegret]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Arenillas]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Arz]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Barton]]></surname>
<given-names><![CDATA[P.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bown]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bralower]]></surname>
<given-names><![CDATA[T.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Christeson]]></surname>
<given-names><![CDATA[G.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Claeys]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Cockell]]></surname>
<given-names><![CDATA[C. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Collins]]></surname>
<given-names><![CDATA[G.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Deutsch]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Goldin]]></surname>
<given-names><![CDATA[T.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Goto]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Grajales-Nishimura]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Grieve]]></surname>
<given-names><![CDATA[R.A.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Gulick]]></surname>
<given-names><![CDATA[S.P.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[K.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Kiessling]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Koeberl]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Kring]]></surname>
<given-names><![CDATA[D. A.]]></given-names>
</name>
<name>
<surname><![CDATA[MacLeod]]></surname>
<given-names><![CDATA[K.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Matsui]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Melosh]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Montanari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Morgan]]></surname>
<given-names><![CDATA[J.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Neal]]></surname>
<given-names><![CDATA[C.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Nichols]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Norris]]></surname>
<given-names><![CDATA[R.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Pierazzo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ravizza]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rebolledo-Vieyra]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Reimold]]></surname>
<given-names><![CDATA[W.U.]]></given-names>
</name>
<name>
<surname><![CDATA[Robin]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Salge]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Speijer]]></surname>
<given-names><![CDATA[R.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sweet]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Urrutia-Fucugauchi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Vajda]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Whalen]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Willumsen]]></surname>
<given-names><![CDATA[P.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary]]></article-title>
<source><![CDATA[Science]]></source>
<year>2010</year>
<volume>327</volume>
<numero>5970</numero>
<issue>5970</issue>
<page-range>1214-8</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<collab>Servicio Geológico Mexicano</collab>
<source><![CDATA[Carta Geológico-Minera, Estados de: Campeche, Quintana Roo y Yucatán]]></source>
<year>2007</year>
<publisher-name><![CDATA[INEGI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Southworth]]></surname>
<given-names><![CDATA[C.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Applications of remote sensing data, eastern Yucatan]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Weidie]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geology and hydrogeology of the Yucatan and Quaternary Geology of northeastern Yucatan Peninsula]]></source>
<year>1985</year>
<page-range>12-9</page-range><publisher-loc><![CDATA[New Orleans ]]></publisher-loc>
<publisher-name><![CDATA[New Orleans Geological Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Socki]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[A chemical and isotopic study of groundwater from Northwestern Yucatan, Mexico]]></source>
<year>1984</year>
<publisher-loc><![CDATA[DeKalb ]]></publisher-loc>
<publisher-name><![CDATA[Northern Illinois University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Socki]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Romanek]]></surname>
<given-names><![CDATA[C. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stable isotope systematics of two cenotes from the northern Yucatan Peninsula, Mexico]]></article-title>
<source><![CDATA[Limnology Oceanography]]></source>
<year>2002</year>
<volume>47</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1808-18</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stoessell]]></surname>
<given-names><![CDATA[R. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Ward]]></surname>
<given-names><![CDATA[W. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ford]]></surname>
<given-names><![CDATA[B. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Schuffert]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Water chemistry and CaCO3 dissolution in the saline part of an open-flow mixing zone, coastal Yucatan Peninsula, Mexico]]></article-title>
<source><![CDATA[GSA Bulletin]]></source>
<year>1989</year>
<volume>101</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>159-69</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tulaczyk]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Duller]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Villasuso]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geomorphology and hydrogeology of the Holbox area, northeastern Yucatan, Mexico, interpreted from two LANDSAT TM images. In Applied Karst Geology]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Beck]]></surname>
<given-names><![CDATA[B.F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Proceedings of the Fourth Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst]]></source>
<year>1993</year>
<page-range>181-8</page-range><publisher-loc><![CDATA[Lisse, The Netherlands ]]></publisher-loc>
<publisher-name><![CDATA[AA Balkema]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Velazquez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[oral communication during a preliminary visit to the study zone]]></source>
<year>2012</year>
</nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Velazquez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aplicación de principios geoquímicos en la hidrología kárstica de la Península de Yucatán]]></article-title>
<source><![CDATA[Ing. Hidráulica en México]]></source>
<year>1986</year>
<volume>1</volume>
<page-range>21-9</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Viniegra-O.]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Great carbonate bank of Yucatán, southern Mexico]]></article-title>
<source><![CDATA[Journal of Petroleum Geology]]></source>
<year>1981</year>
<volume>3</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>247-78</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wagner]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[A geochemical study of the southern and northeastern Yucatan Peninsula, Mexico]]></source>
<year>2009</year>
<publisher-loc><![CDATA[DeKalb, IL, USA ]]></publisher-loc>
<publisher-name><![CDATA[Northern Illinois University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weidie]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geology of Yucatan Platform]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Weidie]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geology and hydrogeology of the Yucatan and Quaternary Geology of northeastern Yucatan Peninsula]]></source>
<year>1985</year>
<page-range>1-19</page-range><publisher-loc><![CDATA[New Orleans, LA ]]></publisher-loc>
<publisher-name><![CDATA[New Orleans Geological Society]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
