{ "dc.contributor": "Universitat de Girona. Departament d'Informàtica i Matemàtica Aplicada" , "dc.contributor.author": "Eynatten, Hilmar von" , "dc.contributor.author": "Tolosana Delgado, Raimon" , "dc.contributor.author": "Triebold, S." , "dc.contributor.author": "Zack, T." , "dc.contributor.editor": "Mateu i Figueras, Glòria" , "dc.contributor.editor": "Barceló i Vidal, Carles" , "dc.date.accessioned": "2008-05-12T06:56:06Z" , "dc.date.available": "2008-05-12T06:56:06Z" , "dc.date.issued": "2005-10" , "dc.identifier.citation": "Eynatten, H. et al. 'Interactions between grain size and composition of sediments: two examples' a CODAWORK’05. Girona: La Universitat, 2005 [consulta: 12 maig 2008]. Necessita Adobe Acrobat. Disponible a Internet a: http://hdl.handle.net/10256/703" , "dc.identifier.isbn": "84-8458-222-1" , "dc.identifier.uri": "http://hdl.handle.net/10256/703" , "dc.description.abstract": "Two contrasting case studies of sediment and detrital mineral composition are investigated in order to outline interactions between chemical composition and grain size. Modern glacial sediments exhibit a strong dependence of the two parameters due to the preferential enrichment of mafic minerals, especially biotite, in the fine-grained fractions. On the other hand, the composition of detrital heavy minerals (here: rutile) appears to be not systematically related to grain-size, but is strongly controlled by location, i.e. the petrology of the source rocks of detrital grains. This supports the use of rutile as a well-suited tracer mineral for provenance studies. The results further suggest that (i) interpretations derived from whole-rock sediment geochemistry should be flanked by grain-size observations, and (ii) a more sound statistical evaluation of these interactions require the development of new tailor-made statistical tools to deal with such so-called two-way compositions" , "dc.description.sponsorship": "Geologische Vereinigung; Institut d’Estadística de Catalunya; International Association for Mathematical Geology; Patronat de l’Escola Politècnica Superior de la Universitat de Girona; Fundació privada: Girona, Universitat i Futur; Càtedra Lluís Santaló d’Aplicacions de la Matemàtica; Consell Social de la Universitat de Girona; Ministerio de Ciencia i Tecnología.cat" , "dc.format.mimetype": "application/pdf" , "dc.language.iso": "eng" , "dc.publisher": "Universitat de Girona. Departament d’Informàtica i Matemàtica Aplicada" , "dc.rights": "Tots els drets reservats" , "dc.subject": "Sedimentologia" , "dc.title": "Interactions between grain size and composition of sediments: two examples" , "dc.type": "info:eu-repo/semantics/conferenceObject" , "dc.rights.accessRights": "info:eu-repo/semantics/openAccess" }