Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth
Identifieur interne : 001270 ( Istex/Corpus ); précédent : 001269; suivant : 001271Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth
Auteurs : Rubén Ocampo ; Claude Bauder ; Henry J. Callot ; Pierre AlbrechtSource :
- Geochimica et Cosmochimica Acta [ 0016-7037 ] ; 1992.
Abstract
The extraction and isolation procedures of twenty nickel porphyrins (seven alkylporphyrins, thirteen carboxylic acids) from lacustrine Messel shale (Eocene, Germany), as well as the unequivocal structural assignments (obtained using 200 and 400 MHz nuclear magnetic resonance (NMR), nuclear Overhauser effect, mass spectrometry and total or partial synthesis of six reference compounds) are described. Ten porphyrins could be specifically correlated with biological precursors: algal chlorophyll c (4), bacteriochlorophylls d (3) and heme (3), while the remaining ones may arise from several chlorophylls. The structures of these fossil pigments mostly confirm the classical “Treibs scheme,” including the origin of some porphyrins from nonchlorophyll sources. They also show that, even in a very immature sediment, deep modifications occur, including, in particular, extensive degradation of chlorophyll E ring. The composition of the porphyrin fractions of Messel oil shale was also studied as a function of depth. A porphyrin acids/alkylporphyrins ratio varying from 0.35 to 24.8 demonstrated that the apparent homogeneity of the shale is not reflected on the molecular scale. This was confirmed when the abundance of the twenty individual porphyrins of known structure was measured along the core. Significant correlations between individual porphyrins were found: fossils of bacteriochlorophylls d, homolog pairs of porphyrins (3-H/3-ethyl), etc.
Url:
DOI: 10.1016/0016-7037(92)90095-Z
Links to Exploration step
ISTEX:612658385E9479E1ECABF89367CC6DD2674EDB93Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title><author><name sortKey="Ocampo, Ruben" sort="Ocampo, Ruben" uniqKey="Ocampo R" first="Rubén" last="Ocampo">Rubén Ocampo</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Bauder, Claude" sort="Bauder, Claude" uniqKey="Bauder C" first="Claude" last="Bauder">Claude Bauder</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Callot, Henry J" sort="Callot, Henry J" uniqKey="Callot H" first="Henry J." last="Callot">Henry J. Callot</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Albrecht, Pierre" sort="Albrecht, Pierre" uniqKey="Albrecht P" first="Pierre" last="Albrecht">Pierre Albrecht</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:612658385E9479E1ECABF89367CC6DD2674EDB93</idno><date when="1992" year="1992">1992</date><idno type="doi">10.1016/0016-7037(92)90095-Z</idno><idno type="url">https://api.istex.fr/document/612658385E9479E1ECABF89367CC6DD2674EDB93/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001270</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001270</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title><author><name sortKey="Ocampo, Ruben" sort="Ocampo, Ruben" uniqKey="Ocampo R" first="Rubén" last="Ocampo">Rubén Ocampo</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Bauder, Claude" sort="Bauder, Claude" uniqKey="Bauder C" first="Claude" last="Bauder">Claude Bauder</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Callot, Henry J" sort="Callot, Henry J" uniqKey="Callot H" first="Henry J." last="Callot">Henry J. Callot</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Albrecht, Pierre" sort="Albrecht, Pierre" uniqKey="Albrecht P" first="Pierre" last="Albrecht">Pierre Albrecht</name><affiliation><mods:affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Geochimica et Cosmochimica Acta</title><title level="j" type="abbrev">GCA</title><idno type="ISSN">0016-7037</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1992">1992</date><biblScope unit="volume">56</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="745">745</biblScope><biblScope unit="page" to="761">761</biblScope></imprint><idno type="ISSN">0016-7037</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0016-7037</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The extraction and isolation procedures of twenty nickel porphyrins (seven alkylporphyrins, thirteen carboxylic acids) from lacustrine Messel shale (Eocene, Germany), as well as the unequivocal structural assignments (obtained using 200 and 400 MHz nuclear magnetic resonance (NMR), nuclear Overhauser effect, mass spectrometry and total or partial synthesis of six reference compounds) are described. Ten porphyrins could be specifically correlated with biological precursors: algal chlorophyll c (4), bacteriochlorophylls d (3) and heme (3), while the remaining ones may arise from several chlorophylls. The structures of these fossil pigments mostly confirm the classical “Treibs scheme,” including the origin of some porphyrins from nonchlorophyll sources. They also show that, even in a very immature sediment, deep modifications occur, including, in particular, extensive degradation of chlorophyll E ring. The composition of the porphyrin fractions of Messel oil shale was also studied as a function of depth. A porphyrin acids/alkylporphyrins ratio varying from 0.35 to 24.8 demonstrated that the apparent homogeneity of the shale is not reflected on the molecular scale. This was confirmed when the abundance of the twenty individual porphyrins of known structure was measured along the core. Significant correlations between individual porphyrins were found: fossils of bacteriochlorophylls d, homolog pairs of porphyrins (3-H/3-ethyl), etc.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Rubén Ocampo</name><affiliations><json:string>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</json:string></affiliations></json:item><json:item><name>Claude Bauder</name><affiliations><json:string>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</json:string></affiliations></json:item><json:item><name>Henry J. Callot</name><affiliations><json:string>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</json:string></affiliations></json:item><json:item><name>Pierre Albrecht</name><affiliations><json:string>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>The extraction and isolation procedures of twenty nickel porphyrins (seven alkylporphyrins, thirteen carboxylic acids) from lacustrine Messel shale (Eocene, Germany), as well as the unequivocal structural assignments (obtained using 200 and 400 MHz nuclear magnetic resonance (NMR), nuclear Overhauser effect, mass spectrometry and total or partial synthesis of six reference compounds) are described. Ten porphyrins could be specifically correlated with biological precursors: algal chlorophyll c (4), bacteriochlorophylls d (3) and heme (3), while the remaining ones may arise from several chlorophylls. The structures of these fossil pigments mostly confirm the classical “Treibs scheme,” including the origin of some porphyrins from nonchlorophyll sources. They also show that, even in a very immature sediment, deep modifications occur, including, in particular, extensive degradation of chlorophyll E ring. The composition of the porphyrin fractions of Messel oil shale was also studied as a function of depth. A porphyrin acids/alkylporphyrins ratio varying from 0.35 to 24.8 demonstrated that the apparent homogeneity of the shale is not reflected on the molecular scale. This was confirmed when the abundance of the twenty individual porphyrins of known structure was measured along the core. Significant correlations between individual porphyrins were found: fossils of bacteriochlorophylls d, homolog pairs of porphyrins (3-H/3-ethyl), etc.</abstract><qualityIndicators><score>7.424</score><pdfVersion>1.2</pdfVersion><pdfPageSize>576 x 792 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>1451</abstractCharCount><pdfWordCount>7247</pdfWordCount><pdfCharCount>46647</pdfCharCount><pdfPageCount>17</pdfPageCount><abstractWordCount>202</abstractWordCount></qualityIndicators><title>Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title><pii><json:string>0016-7037(92)90095-Z</json:string></pii><genre><json:string>research-article</json:string></genre><serie><volume>Vol. 1</volume><pages><last>551</last><first>485</first></pages><language><json:string>unknown</json:string></language><title>The Porphyrins</title></serie><host><volume>56</volume><pii><json:string>S0016-7037(00)X0238-4</json:string></pii><pages><last>761</last><first>745</first></pages><issn><json:string>0016-7037</json:string></issn><issue>2</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>Geochimica et Cosmochimica Acta</title><publicationDate>1992</publicationDate></host><categories><wos><json:string>science</json:string><json:string>geochemistry & geophysics</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>earth & environmental sciences</json:string><json:string>geochemistry & geophysics</json:string></scienceMetrix><inist><json:string>sciences appliquees, technologies et medecines</json:string><json:string>sciences biologiques et medicales</json:string><json:string>sciences biologiques fondamentales et appliquees. psychologie</json:string><json:string>biophysique moleculaire</json:string></inist></categories><publicationDate>1992</publicationDate><copyrightDate>1992</copyrightDate><doi><json:string>10.1016/0016-7037(92)90095-Z</json:string></doi><id>612658385E9479E1ECABF89367CC6DD2674EDB93</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/612658385E9479E1ECABF89367CC6DD2674EDB93/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/612658385E9479E1ECABF89367CC6DD2674EDB93/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/612658385E9479E1ECABF89367CC6DD2674EDB93/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>ELSEVIER</p></availability><date>1992</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title><author xml:id="author-0000"><persName><forename type="first">Rubén</forename><surname>Ocampo</surname></persName><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation></author><author xml:id="author-0001"><persName><forename type="first">Claude</forename><surname>Bauder</surname></persName><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">Henry J.</forename><surname>Callot</surname></persName><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation></author><author xml:id="author-0003"><persName><forename type="first">Pierre</forename><surname>Albrecht</surname></persName><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation></author><idno type="istex">612658385E9479E1ECABF89367CC6DD2674EDB93</idno><idno type="DOI">10.1016/0016-7037(92)90095-Z</idno><idno type="PII">0016-7037(92)90095-Z</idno></analytic><monogr><title level="j">Geochimica et Cosmochimica Acta</title><title level="j" type="abbrev">GCA</title><idno type="pISSN">0016-7037</idno><idno type="PII">S0016-7037(00)X0238-4</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1992"></date><biblScope unit="volume">56</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="745">745</biblScope><biblScope unit="page" to="761">761</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1992</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>The extraction and isolation procedures of twenty nickel porphyrins (seven alkylporphyrins, thirteen carboxylic acids) from lacustrine Messel shale (Eocene, Germany), as well as the unequivocal structural assignments (obtained using 200 and 400 MHz nuclear magnetic resonance (NMR), nuclear Overhauser effect, mass spectrometry and total or partial synthesis of six reference compounds) are described. Ten porphyrins could be specifically correlated with biological precursors: algal chlorophyll c (4), bacteriochlorophylls d (3) and heme (3), while the remaining ones may arise from several chlorophylls. The structures of these fossil pigments mostly confirm the classical “Treibs scheme,” including the origin of some porphyrins from nonchlorophyll sources. They also show that, even in a very immature sediment, deep modifications occur, including, in particular, extensive degradation of chlorophyll E ring. The composition of the porphyrin fractions of Messel oil shale was also studied as a function of depth. A porphyrin acids/alkylporphyrins ratio varying from 0.35 to 24.8 demonstrated that the apparent homogeneity of the shale is not reflected on the molecular scale. This was confirmed when the abundance of the twenty individual porphyrins of known structure was measured along the core. Significant correlations between individual porphyrins were found: fossils of bacteriochlorophylls d, homolog pairs of porphyrins (3-H/3-ethyl), etc.</p></abstract></profileDesc><revisionDesc><change when="1992">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/612658385E9479E1ECABF89367CC6DD2674EDB93/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>GCA</jid><aid>9290095Z</aid><ce:pii>0016-7037(92)90095-Z</ce:pii><ce:doi>10.1016/0016-7037(92)90095-Z</ce:doi><ce:copyright type="unknown" year="1992"></ce:copyright></item-info><head><ce:title>Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</ce:title><ce:author-group><ce:author><ce:given-name>Rubén</ce:given-name><ce:surname>Ocampo</ce:surname></ce:author><ce:author><ce:given-name>Claude</ce:given-name><ce:surname>Bauder</ce:surname></ce:author><ce:author><ce:given-name>Henry J.</ce:given-name><ce:surname>Callot</ce:surname></ce:author><ce:author><ce:given-name>Pierre</ce:given-name><ce:surname>Albrecht</ce:surname></ce:author><ce:affiliation><ce:textfn>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</ce:textfn></ce:affiliation></ce:author-group><ce:date-received day="7" month="5" year="1991"></ce:date-received><ce:date-accepted day="22" month="11" year="1991"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>The extraction and isolation procedures of twenty nickel porphyrins (seven alkylporphyrins, thirteen carboxylic acids) from lacustrine Messel shale (Eocene, Germany), as well as the unequivocal structural assignments (obtained using 200 and 400 MHz nuclear magnetic resonance (NMR), nuclear Overhauser effect, mass spectrometry and total or partial synthesis of six reference compounds) are described. Ten porphyrins could be specifically correlated with biological precursors: algal chlorophyll <math altimg="si1.gif">c</math> (4), bacteriochlorophylls <math altimg="si2.gif">d</math> (3) and heme (3), while the remaining ones may arise from several chlorophylls. The structures of these fossil pigments mostly confirm the classical “Treibs scheme,” including the origin of some porphyrins from nonchlorophyll sources. They also show that, even in a very immature sediment, deep modifications occur, including, in particular, extensive degradation of chlorophyll E ring. The composition of the porphyrin fractions of Messel oil shale was also studied as a function of depth. A porphyrin acids/alkylporphyrins ratio varying from 0.35 to 24.8 demonstrated that the apparent homogeneity of the shale is not reflected on the molecular scale. This was confirmed when the abundance of the twenty individual porphyrins of known structure was measured along the core. Significant correlations between individual porphyrins were found: fossils of bacteriochlorophylls <math altimg="si3.gif">d</math>, homolog pairs of porphyrins (3-H/3-ethyl), etc.</ce:simple-para></ce:abstract-sec></ce:abstract></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth</title></titleInfo><name type="personal"><namePart type="given">Rubén</namePart><namePart type="family">Ocampo</namePart><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Claude</namePart><namePart type="family">Bauder</namePart><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Henry J.</namePart><namePart type="family">Callot</namePart><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Pierre</namePart><namePart type="family">Albrecht</namePart><affiliation>URA 31 du CNRS, Institut de Chimie, Université Louis Pasteur, 1 rue Blaise Pascal, 67008 Strasbourg, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1992</dateIssued><copyrightDate encoding="w3cdtf">1992</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">The extraction and isolation procedures of twenty nickel porphyrins (seven alkylporphyrins, thirteen carboxylic acids) from lacustrine Messel shale (Eocene, Germany), as well as the unequivocal structural assignments (obtained using 200 and 400 MHz nuclear magnetic resonance (NMR), nuclear Overhauser effect, mass spectrometry and total or partial synthesis of six reference compounds) are described. Ten porphyrins could be specifically correlated with biological precursors: algal chlorophyll c (4), bacteriochlorophylls d (3) and heme (3), while the remaining ones may arise from several chlorophylls. The structures of these fossil pigments mostly confirm the classical “Treibs scheme,” including the origin of some porphyrins from nonchlorophyll sources. They also show that, even in a very immature sediment, deep modifications occur, including, in particular, extensive degradation of chlorophyll E ring. The composition of the porphyrin fractions of Messel oil shale was also studied as a function of depth. A porphyrin acids/alkylporphyrins ratio varying from 0.35 to 24.8 demonstrated that the apparent homogeneity of the shale is not reflected on the molecular scale. This was confirmed when the abundance of the twenty individual porphyrins of known structure was measured along the core. Significant correlations between individual porphyrins were found: fossils of bacteriochlorophylls d, homolog pairs of porphyrins (3-H/3-ethyl), etc.</abstract><relatedItem type="host"><titleInfo><title>Geochimica et Cosmochimica Acta</title></titleInfo><titleInfo type="abbreviated"><title>GCA</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199202</dateIssued></originInfo><identifier type="ISSN">0016-7037</identifier><identifier type="PII">S0016-7037(00)X0238-4</identifier><part><date>199202</date><detail type="volume"><number>56</number><caption>vol.</caption></detail><detail type="issue"><number>2</number><caption>no.</caption></detail><extent unit="issue pages"><start>565</start><end>867</end></extent><extent unit="pages"><start>745</start><end>761</end></extent></part></relatedItem><identifier type="istex">612658385E9479E1ECABF89367CC6DD2674EDB93</identifier><identifier type="DOI">10.1016/0016-7037(92)90095-Z</identifier><identifier type="PII">0016-7037(92)90095-Z</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata></istex></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/NickelMaghrebV1/Data/Istex/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001270 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Corpus/biblio.hfd -nk 001270 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= NickelMaghrebV1
|flux= Istex
|étape= Corpus
|type= RBID
|clé= ISTEX:612658385E9479E1ECABF89367CC6DD2674EDB93
|texte= Porphyrins from Messel oil shale (Eocene, Germany): Structure elucidation, geochemical and biological significance, and distribution as a function of depth
}}
| This area was generated with Dilib version V0.6.27. |  |