<?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>S1026-87742005000300315</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Polimetamorfismo de muy bajo a bajo grado en rocas volcánicas jurásico-cretácicas al sur de Cholila, Chubut, Patagonia Argentina]]></article-title>
<article-title xml:lang="en"><![CDATA[Very low- to low-grade polimetamorphism in Jurassic-Cretaceous volcanic rocks to the south of Cholila, Chubut, Argentinian Patagonia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[Carlos Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leal]]></surname>
<given-names><![CDATA[Pablo Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2005</year>
</pub-date>
<volume>22</volume>
<numero>3</numero>
<fpage>315</fpage>
<lpage>328</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1026-87742005000300315&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1026-87742005000300315&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1026-87742005000300315&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se estudian los procesos de metamorfismo de muy bajo grado (MMBG), que alcanzó el bajo grado (MBG), y que afectaron a la secuencia volcánica calcialcalina del Jurásico Medio a Superior/Cretácico Inferior en los Andes Patagónicos Septentrionales entre Lat 42°30´ y 43° S, al sur de la localidad de Cholila, provincia de Chubut, Patagonia Argentina. La secuencia, depositada en cuencas marginales, es intrusada por rocas graníticas del Cretácico Inferior. El protolito es de composición basáltica y andesítico-dacítica; los minerales secundarios se depositaron como reemplazo de fenocristales, mesostasis, amígdalas y venas. Se reconocen tres procesos metamórficos. El primero, de carácter regional, ocurrió en un ambiente no deformacional, de tipo extensional, con moderado a alto gradiente y con alta &#402;O2. Durante este proceso se alcanzaron temperaturas algo mayores a 300 °C a 2 kb de presión y se formó la asociación epidoto-clorita-albita-actinolita-cuarzo-magnetita-titanita con grandita (sin pumpelita ni prehnita) en facies de esquistos verdes, con alta XCO2/XH2O, descendiendo luego la T y P a facies de pumpelita-actinolita con asociaciones de pumpelita-actinolita-epidoto (sin prehnita) y facies de prehnita-pumpelita con la asociación epidoto-clorita-albita-cuarzo-pumpelita (± prehnita). Algo más al norte, la presencia de epidoto, albita, adularia, clorita, laumontita y escasa pumpelita y prehnita indican la facies de zeolita. Posteriormente hubo un segundo proceso metamórfico, relacionado probablemente a la inversión de fallas previas y a la elevación del área en el Cretácico Superior, con aumento en la temperatura generado por fluidos vinculados con el magmatismo. Este proceso habría producido, en las cercanías de la localidad de Cholila, asociaciones de ambiente geotermal en facies de zeolita de alta temperatura, ya que a la laumontita del proceso metamórfico previo, se sumó la presencia de wairakita y yugawaralita, asociación indicativa de 220 °C de temperatura a presiones inferiores a 0.5 kb. Los fluidos actuantes en estos procesos fueron neutros a ligeramente alcalinos, y la razón PH2O/Ptotal fue alta, lo que favoreció la formación de las zeolitas cálcicas. Finalmente, un brechamiento posterior de las rocas favoreció la circulación de nuevos fluidos más alcalinos a bajas temperaturas; con pH ácido se formó illita por sectores, y con pH neutro se depositaron barrerita, offretita y esmectitas en amígdalas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In this paper we study the polymetamorphic processes of very low-grade metamorphism (VLGM) in subgreenschists facies to low-grade metamorphism (LGM) affecting the calcalkaline volcanic sequence of Middle or Upper Jurassic/Lower Cretaceous age in the North Patagonian Andes (Lat 42°30´-43° S), south of the Cholila locality, Chubut Province, Argentinian Patagonia. The sequence, deposited in marginal basins, is intruded by granitic rocks of Early Cretaceous age. The protolith is basaltic and andesitic in composition; the secondary minerals were deposited replacing the matrix, phenocrysts, infilling veins and amygdales. Three metamorphic processes are recognized. The first regional process that affected the sequence occurred in a non- deformational environment of extensional type, with moderate to steep thermal gradient, and high &#402;O2. In this first stage, greenschists-facies temperatures of &gt;300 °C at 2 kb are indicated by the observed assemblage of epidote-chlorite-actinolite-albite-quartz-magnetite-titanite +grandite (without pumpellyite nor prehnite), which formed at high XCO2/XH2O. Temperature and pressure then decreased to subgreenschists facies of VLGM in pumpellyite-actinolite facies with assemblages of pumpellyite- actinolite-epidote (without prehnite) and in prehnite-pumpellyite facies (with epidote-chlorite-albite- quartz-pumpellyite ± prehnite). In the northern area, the assemblage epidote, albite, chlorite, adularia, laumontite and scarce pumpellyite and prehnite indicates the zeolite facies. Nearer to Cholila locality, there is evidence of a second stage of VLGM, probably related to the inversion of previous faults and to the uplift of the area in Upper Cretaceous times; the increased temperatures in this stage were generated by fluids related to magmatism. The presence of wairakite and yugawaralite together with laumontite is in accordance with a geothermal-type VLGM in the high-temperature zeolite facies. The equilibrium assemblage wairakite-yugawaralite-laumontite indicates P-T conditions of &lt;220 °C and &lt;0.5 kb. In the first two processes, the neutral to slightly alkaline hydrothermal fluids, the high PH2O/Ptotal ratio, and the high &#402;O2 conditions in the stability field of hematite, favored the formation of calcsilicates and calcic zeolites. Later, new fractures affected the rocks and facilitated the circulation of new, more alkaline fluids; in some areas, fluids with acidic pH promoted the formation of illite and sericite, but at neutral pH, barrerite, offretite and smectite were deposited in amygdales at temperatures below 180 °C.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[polimetamorfismo]]></kwd>
<kwd lng="es"><![CDATA[metamorfismo de muy bajo grado]]></kwd>
<kwd lng="es"><![CDATA[metamorfismo de bajo grado]]></kwd>
<kwd lng="es"><![CDATA[Chubut]]></kwd>
<kwd lng="es"><![CDATA[Patagonia]]></kwd>
<kwd lng="es"><![CDATA[Argentina]]></kwd>
<kwd lng="en"><![CDATA[Polymetamorphism]]></kwd>
<kwd lng="en"><![CDATA[very low-grade metamorphism]]></kwd>
<kwd lng="en"><![CDATA[low-grade metamorphism]]></kwd>
<kwd lng="en"><![CDATA[Chubut]]></kwd>
<kwd lng="en"><![CDATA[Patagonia]]></kwd>
<kwd lng="en"><![CDATA[Argentina]]></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[Aguirre]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metamorphic pattern of the Cretaceous Celica Formation, SW Ecuador and its geodynamic implications]]></article-title>
<source><![CDATA[Tectonophysics]]></source>
<year>1992</year>
<volume>205</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>223-37</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguirre]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Compositional variations of Cretaceous pumpellyites along the western margin of South America and their relation to an extensional geodynamic setting]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1993</year>
<volume>11</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>437-48</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguirre]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Atherton]]></surname>
<given-names><![CDATA[M.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low grade metamorphism and geo-tectonic setting of the Macuchi Formation, Western Cordillera, Ecuador]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1987</year>
<volume>5</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>473-94</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beiersdorfer]]></surname>
<given-names><![CDATA[R. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Day]]></surname>
<given-names><![CDATA[H.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mineral paragenesis of pumpellyite in low-grade mafic rocks]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Schiffman]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Day]]></surname>
<given-names><![CDATA[H.W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Geological Society of America, Special Paper]]></source>
<year>1995</year>
<volume>296</volume>
<page-range>5-28</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Liou]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Maruyama]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transition from the zeolite to preh-nite-pumpellyite facies in the Karmutsen metabasites, Vancouver Island, British Columbia (Canada)]]></article-title>
<source><![CDATA[Journal of Petrology]]></source>
<year>1986</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>467-94</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cochemé]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Bevins]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Zeolitization processes in basic lavas of the Baucarit Formation, Northwestern Mexico]]></article-title>
<source><![CDATA[Revista de la Sociedad Geológica de Chile]]></source>
<year>1994</year>
<volume>21</volume>
<page-range>217-31</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coombs]]></surname>
<given-names><![CDATA[D.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The pumpellyite mineral series]]></article-title>
<source><![CDATA[Mineralogical Magazine]]></source>
<year>1953</year>
<volume>30</volume>
<page-range>113-35</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coombs]]></surname>
<given-names><![CDATA[D.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ellis]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Fyfe]]></surname>
<given-names><![CDATA[W.S]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[A.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The zeolite facies, with comments on the interpretation of hidrotermal syntheses]]></article-title>
<source><![CDATA[Geochimica et Cosmochimica Acta]]></source>
<year>1959</year>
<volume>17</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>53-107</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coombs]]></surname>
<given-names><![CDATA[D.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Alberti]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Armbruster]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Artioli]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Colella]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Galli]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Grice]]></surname>
<given-names><![CDATA[J.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Liebau]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Mandarino]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Minato]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Nickel]]></surname>
<given-names><![CDATA[E.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Passaglia]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Peacor]]></surname>
<given-names><![CDATA[D.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Quartieri]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rinaldi]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ross]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sheppard]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tillmanns]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Vezzalini]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Comission on New Minerals and Mineral Names]]></article-title>
<source><![CDATA[The Canadian Mineralogist]]></source>
<year>1997</year>
<volume>35</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1571-606</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Deer]]></surname>
<given-names><![CDATA[W.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Howie]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Zussman]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rock-Forming Minerals, Disilicates and Ring Silicates]]></source>
<year>1986</year>
<edition>2nd</edition>
<page-range>629</page-range><publisher-loc><![CDATA[London, England ]]></publisher-loc>
<publisher-name><![CDATA[Longman]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Deer]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Howie]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Zussman]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wise]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rock Forming Minerals, Framework Silicates]]></source>
<year>2004</year>
<page-range>982</page-range><publisher-loc><![CDATA[London, England ]]></publisher-loc>
<publisher-name><![CDATA[The Geological Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Digel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ghent]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fluid-mineral equilibria in prehnite-pumpellyite to greenschist facies metabasites near Flin Flon, Manitoba, Canadá: implications for petrogenetic grids]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1994</year>
<volume>12</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>467-77</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Folguera]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ianizzotto]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Lagos La Plata and Fontana fold-and-thrust belt: long lived orogenesis at the edge of western Patagonia]]></article-title>
<source><![CDATA[Journal of South American Earth Science]]></source>
<year>2004</year>
<volume>16</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>541-66</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frey]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Low-Grade Metamorphism]]></source>
<year>1999</year>
<page-range>313</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Blackwell Science Ltd.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frey]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[De Capitani]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Liou]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A New Petrogenetic Gride for Low-Grade Metabasites]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1991</year>
<volume>9</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>497-509</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gaines]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Skinner]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Foord]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Mason]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Rosenzweig]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Dana&#8217;s New Mineralogy]]></source>
<year>1997</year>
<page-range>1819</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley &amp; Sons Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Giacosa]]></surname>
<given-names><![CDATA[R.E]]></given-names>
</name>
<name>
<surname><![CDATA[Márquez]]></surname>
<given-names><![CDATA[M.J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Jurásico y Cretácico de la Cordillera Patagónica septentrional y Precordillera Patagónica]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Caminos]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Anales]]></source>
<year>1999</year>
<volume>29</volume>
<page-range>444-59</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gottardi]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Galli]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Natural Zeolites]]></source>
<year>1985</year>
<page-range>409</page-range><publisher-loc><![CDATA[Berlín ]]></publisher-loc>
<publisher-name><![CDATA[Springer Verlag]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haller]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Lapido]]></surname>
<given-names><![CDATA[O.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Jurassic-Cretaceous volcanism in the Septentrional Patagonian Andes]]></article-title>
<source><![CDATA[Earth Science Reviews]]></source>
<year>1982</year>
<volume>18</volume>
<numero>3-4</numero>
<issue>3-4</issue>
<page-range>395-410</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haller]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Barbieri]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ghiara]]></surname>
<given-names><![CDATA[M.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Stanzione]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Castorina]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Trudu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Meister]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Génesis y evolución del granito Futalaufquén, Andes Patagónicos (42°40&#8217;- 42°50&#8217;S)]]></article-title>
<source><![CDATA[XIII Congreso Geológico Argentino y III Congreso de Exploración de Hidrocarburos, Actas]]></source>
<year>1996</year>
<volume>13</volume>
<page-range>507-14</page-range><publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Asociación Geológica Argentina]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holland]]></surname>
<given-names><![CDATA[T.J.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Redfern]]></surname>
<given-names><![CDATA[S.A.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Unit cell refinement from powder diffraction data: the use of regression diagnostics]]></article-title>
<source><![CDATA[Mineralogical Magazine]]></source>
<year>1997</year>
<volume>61</volume>
<page-range>65-77</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jolly]]></surname>
<given-names><![CDATA[W.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Degradation and metamorphic differen-tiationof the Keweenawan tholeiitic lavas of northern Michigan. USA]]></article-title>
<source><![CDATA[Journal of Petrology]]></source>
<year>1972</year>
<volume>13</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>273-309</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lagorio]]></surname>
<given-names><![CDATA[S.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Massaferro]]></surname>
<given-names><![CDATA[G.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Montenegro]]></surname>
<given-names><![CDATA[T.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mineralogía y metamorfismo de vulcani-tas de Aluminé, Neuquén]]></article-title>
<source><![CDATA[Revista de la Asociación Geológica Argentina]]></source>
<year>2001</year>
<volume>56</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>211-20</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lapido]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Descripción Geológica de la Hoja 46a, Río Pico, Provincia del Chubut: Buenos Aires]]></source>
<year>1979</year>
<publisher-name><![CDATA[Servicio Geológico Nacional, Reporte Técnico]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Leal]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hallazgo de barrerita en amígdalas de metabasaltos, noroeste de Chubut, Patagonia Argentina]]></article-title>
<source><![CDATA[Simposio Internacional de Metamorfismo Andino, IX Congreso Geológico Chileno]]></source>
<year>2000</year>
<volume>2</volume>
<page-range>515-9</page-range><publisher-loc><![CDATA[Puerto Varas ]]></publisher-loc>
<publisher-name><![CDATA[Sociedad Geológica de Chile]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liou]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Seki]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Guillemette]]></surname>
<given-names><![CDATA[R.N]]></given-names>
</name>
<name>
<surname><![CDATA[Sakai]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Composition and parageneses of secundary minerals in the Onikobe geothermal system, Japan]]></article-title>
<source><![CDATA[Chemical Geology]]></source>
<year>1985</year>
<volume>49</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>1-20</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lizuaín]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El Jurásico y Cretácico de la Patagonia y Antártica 1, Estratigrafía y evolución geológica del Jurásico y Cretácico de la Cordillera Patagónica Septentrional]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Caminos]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Instituto de Geología y Recursos Minerales, Anales]]></source>
<year>1999</year>
<volume>29</volume>
<page-range>433-556</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lizuaín]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ragona]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Folguera]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mapa Geológico de la Provincia del Chubut, escala 1:750.000]]></source>
<year>1995</year>
<publisher-loc><![CDATA[Buenos Aires, Secretaría de Minería ]]></publisher-loc>
<publisher-name><![CDATA[Dirección Nacional del Servicio Geológico]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pankhurst]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rapela]]></surname>
<given-names><![CDATA[C.R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Production of Jurassic rhyolite by anatexis of the lower crust of Patagonia]]></article-title>
<source><![CDATA[Earth and Planetary Science Letter]]></source>
<year>1995</year>
<volume>134</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>23-6</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pankhurst]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Leat]]></surname>
<given-names><![CDATA[P.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Sruoga]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Rapela]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Marquez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Storey]]></surname>
<given-names><![CDATA[B.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Riley]]></surname>
<given-names><![CDATA[T.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Chon Aike province of Patagonia and related rocks in West Antarctica, a silicic large igneous province]]></article-title>
<source><![CDATA[Journal of Volcanology and Geothermal Research]]></source>
<year>1998</year>
<volume>81</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>113-36</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Passaglia]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Sheppard]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The crystal chemistry of zeolites]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Bisch]]></surname>
<given-names><![CDATA[D.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ming]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Reviews in Mineralogy and Geochemistry]]></source>
<year>2001</year>
<volume>45</volume>
<page-range>69-115</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pesce]]></surname>
<given-names><![CDATA[A.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estratigrafía de la Cordillera Patagónica entre los 43º 30&#8217; y 44º de latitud sur y sus áreas mineralizadas]]></article-title>
<source><![CDATA[7° Congreso Geológico Argentino, Neuquén, Actas]]></source>
<year>1979</year>
<page-range>257-70</page-range><publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Asociación Geológica Argentina]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramos]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Descripción Geológica de la Hoja 47ab-Lago Fontana, Provincia del Chubut]]></source>
<year>1981</year>
<page-range>183</page-range><publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Servicio Geológico Nacional]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rapela]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Kay]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Late Paleozoic to Recent magmatic evo-lution of northern Patagonia]]></article-title>
<source><![CDATA[Episodes]]></source>
<year>1988</year>
<volume>11</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>175-82</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roberts]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low-grade and very low grade regional metabasic Ordovician rocks of Llyn and Snowdonia, Gwyneld, North Wales]]></article-title>
<source><![CDATA[Geological Magazine]]></source>
<year>1981</year>
<volume>118</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>189-200</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schiffman]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Fridleifsson]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The smectite-chlorite transition in drillhole NJ-15, Nesjavellir geothermal field, Iceland: XRD, BSE and electron microprobe investigations]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1991</year>
<volume>9</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>679-96</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schiffman]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Liou]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Synthesis and stability relations of Mg-Al pumpellyite Ca4Al5MgSi6O21(OH)7]]></article-title>
<source><![CDATA[Journal of Petrology]]></source>
<year>1980</year>
<volume>21</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>441-74</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schiffman]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Staudigel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The smectite to chlorite transition in a fossil seamount hydrothermal system: the basement complex of La Palma, Canary Islands]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1995</year>
<volume>13</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>487-98</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thiele]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Hein]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ulloa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geología del sector fronterizo de Chiloe Continental entre los 43°00&#8217; y 43°45&#8217; latitud sur, Chile (comunas de Futaleufú y Palena)]]></article-title>
<source><![CDATA[VII Congreso Geológico Argentino, Neuquén, Actas]]></source>
<year>1978</year>
<page-range>577-91</page-range><publisher-loc><![CDATA[Buenos Aires, Argentina, ]]></publisher-loc>
<publisher-name><![CDATA[Asociación Geológica Argentina]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low-grade metamorphism in granitoids and volcanic rocks, Cordillera Neuquina, Argentina]]></article-title>
<source><![CDATA[Journal of South America Earth Sciences]]></source>
<year>1990</year>
<volume>3</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>247-52</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ceolitas cálcicas en vulcanitas del Cretácico Superior: su génesis en un paleosistema geotermal; El Molle, Provincia de Chubut, República Argentina]]></article-title>
<source><![CDATA[Boletín del Primer Simposio sobre el Cretácico de América del Sur]]></source>
<year>1999</year>
<page-range>213-8</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Na-Mg offretite from Futalaufquen, Patagonian Andes, Argentina]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Misaelides]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Zeolite&#8217;02; Occurrence, Properties and Utilization of Natural Zeolites]]></source>
<year>2002</year>
<page-range>382-3</page-range><publisher-loc><![CDATA[Thessaloniki, Greece ]]></publisher-loc>
<publisher-name><![CDATA[International Committee on Natural Zeolites]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Leal]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Procesos de formación de para-génesis ceolíticas en el metamorfismo de muy bajo grado de las volcanitas paleógenas al sur de Confluencia, Neuquen, República Argentina]]></article-title>
<source><![CDATA[Revista Geológica de Chile]]></source>
<year>2001</year>
<volume>28</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>3-22</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vattuone]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Leal]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Paragénesis de barrerita, offretita, clinozoisita-esmectita en amígdalas de basaltos, Río Arrayanes, Chubut]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Brodtkorb]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Koukarsky]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mineralogía y Metalogenia 2002]]></source>
<year>2002</year>
<page-range>447-52</page-range><publisher-loc><![CDATA[Buenos Aires ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vergara]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Levi]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Villaroel]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geothermal type alteration in a burial metamorphosead volcanic pile, Central Chile]]></article-title>
<source><![CDATA[Journal of Metamorphic Geology]]></source>
<year>1993</year>
<volume>11</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>449-54</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zeng]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liou]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Experimental investigation of yugawaralite-wairakite equilibrium]]></article-title>
<source><![CDATA[American Mineralogist]]></source>
<year>1982</year>
<volume>67</volume>
<page-range>937-9943</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
