Precision and accuracy of modal analysis methods for clastic deposits and rocks: A statistical and numerical modeling approach.

Ross, Pierre-Simon ORCID: https://orcid.org/0000-0002-5302-698X; Giroux, Bernard ORCID: https://orcid.org/0000-0002-2042-2759 et Latutrie, Benjamin (2021). Precision and accuracy of modal analysis methods for clastic deposits and rocks: A statistical and numerical modeling approach. Geosphere , vol. 17 , nº 4. pp. 987-1006. DOI: 10.1130/GES02374.1.

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Résumé

Quantifying the proportions of certain components in rocks and deposits (modal analysis or componentry) is important in earth sciences. Relevant methods for cross-sections (two-dimensional exposures) of clastic rocks include point counts or line counts. The accuracy of these methods has been supposed to be good in the literature but not necessarily verified empirically. Natural materials are inappropriate for assessing accuracy because the true proportions of each component are unknown. The precision of modal analysis methods has traditionally been evaluated from statistical models (primarily the normal approximation to the binomial distribution) but again rarely verified in practice because it is also extremely difficult to obtain

Type de document:	Article
Mots-clés libres:	deposits; numerical methods; numerical models; rocks
Centre:	Centre Eau Terre Environnement
Date de dépôt:	15 oct. 2021 17:29
Dernière modification:	08 juin 2022 19:02
URI:	https://espace.inrs.ca/id/eprint/12004

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