APPLICATION OF DELAUNAY TRIANGULATION TO THE NEAREST NEIGHBOUR METHOD OF STRAIN ANALYSIS
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dc.contributor.author | Mulchrone K.F. | |
dc.date.accessioned | 2022-01-21T06:23:27Z | |
dc.date.available | 2022-01-21T06:23:27Z | |
dc.date.issued | 2003 | |
dc.identifier | https://elibrary.ru/item.asp?id=1453690 | |
dc.identifier.citation | Journal of Structural Geology, 2003, 25, 5, 689-702 | |
dc.identifier.issn | 0191-8141 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/34470 | |
dc.description.abstract | The nearest neighbour method of strain analysis is re-evaluated and a method for objectively determining nearest neighbours, namely the Delaunay triangulation, is applied. A simulation study and application to a real set of data demonstrates that this approach makes the NNM of strain analysis a practical (and computationally more efficient) alternative to the Fry and associated methods. Once nearest neighbours are selected centre-centre distances can be processed by normalisation and enhancement and the best fit ellipse is determined using a steepest gradient non-linear least squares algorithm applied to the polar equation of a centred ellipse. A simulation study indicates that the technique is a valid one and estimates the strain ellipse well at the 95% confidence interval. Application to a set of natural oolite data shows that there is a systematic variation of error with selection factor and it is suggested that the best estimate of the strain ellipse is obtained by choosing the selection factor which minimises the error. | |
dc.subject | STRAIN ANALYSIS | |
dc.subject | NEAREST NEIGHBOUR | |
dc.subject | DELAUNAY TRIANGULATION | |
dc.title | APPLICATION OF DELAUNAY TRIANGULATION TO THE NEAREST NEIGHBOUR METHOD OF STRAIN ANALYSIS | |
dc.type | Статья |
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