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dc.title Illite K–Ar dating and crystal growth processes in diagenetic environments: a critical review en
dc.type Artículo es
dcterms.abstract K–Ar dating of illitic minerals is commonly used in studies of diagenetic series applied to oil prospecting. In spite of a great number of specialized papers, some problems remain unresolved. These are mostly due to a misunderstanding of the argon accumulation process during illitization. Criteria for identifying detrital–authigenic mineral mixtures, crystal ripening, fast precipitation or continuous nucleation-growth processes are discussed using K–Ar data available in the literature. Using different parameters, such as Dage (age K–Ar ) age strati), D cryst (diagenetic ageK–Ar ) age strati) or D frac (age K–Arfraction ) age K–Ar finest), it is shown that the K–Ar age significance depends on the illite nucleation–growth processes. A ‘diagenetic age’ is obtained when these processes are rapid (the K2O accumulation period is shorter than 2r). If lower than this value, the K–Ar ratio depends on the proportions of new and old particles, respectively, which are controlled by the relative rates of nucleation, crystal growth and ripening. en
dcterms.extent 9 p. es
dcterms.issued 2004-07-17
dcterms.language Inglés es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.subject K–Ar data en
dcterms.subject different clay size fractions en
dcterms.subject crystal growth en
dcterms.subject Ar accumulation en
dcterms.subject diagenesis en
cic.version info:eu-repo/semantics/submittedVersion es Meunier, Alain es Velde, Bruce es Zalba, Patricia Eugenia es
cic.lugarDesarrollo Centro de Tecnología de Recursos Minerales y Cerámica es
dcterms.subject.materia Mineralogía es
dcterms.isPartOf.issue vol. 16 es
dcterms.isPartOf.series Terranova es
cic.isPeerReviewed true es
cic.isFulltext true es


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