Identification of reef facies by computer classification
Titel:
Identification of reef facies by computer classification
Auteur:
Veevers, J. J.
Verschenen in:
Australian journal of earth sciences
Paginering:
Jaargang 15 (1968) nr. 2 pagina's 209-215
Jaar:
1968
Inhoud:
A newly developed, hierarchical, agglomerative computer programme using an information statistic for the classification of mixed data shows that the various facies of the well-exposed Famennian reefal limestones of the Bonaparte Basin, northwest Australia, are characterised by distinctive assemblages of groups defined numerically by 30 petrographic and 11 chemical attributes, and qualitatively by 6 petrographic attributes. Assemblages of groups from fragmentary occurrences of Frasnian and Lower Carboniferous carbonates in the Bonaparte Basin were compared with those of the Famennian reefal sequence: two occurrences were thus identified as inter-fingering lagoonal-back-reef fades, and a third as non-reefal. Given a geologically determined situation as a control, this method, with its power to resolve geologically significant groups, is ideal for studying the common intrinsically complex problems in geology.
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