### Abstract

Original language | English |
---|---|

Pages (from-to) | 368-371 |

Number of pages | 4 |

Journal | Trabajos de Geología |

Volume | 29 |

Publication status | Published - Dec 2009 |

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### Cite this

*Trabajos de Geología*,

*29*, 368-371.

**Limits and biases on the three-dimensional vorticity analysis using porphyroblast system : a discussion and application to natural example .** / Iacopini, D; Frassi , C; Carosi , R; Montomoli, C.

Research output: Contribution to journal › Article

*Trabajos de Geología*, vol. 29, pp. 368-371.

}

TY - JOUR

T1 - Limits and biases on the three-dimensional vorticity analysis using porphyroblast system

T2 - a discussion and application to natural example

AU - Iacopini, D

AU - Frassi , C

AU - Carosi , R

AU - Montomoli, C

PY - 2009/12

Y1 - 2009/12

N2 - A description on the systematic errors associated with the measurement of the vorticity numbers is presented and an application to a real example is discussed. We show that strong biases and systematic errors derive both from some physical assumptions (Jeffery or Mulchrone model) rarely encountered by natural systems as well as by the fact that these vorticity techniques require measurements of the geometrical parameters of porphyroblasts-matrix system by using outcrop surfaces or thin section methods that are inherently biased. Applying different vorticity plots we analyse an example and discuss in detail the effective systematic errors distribution and the ambiguity in measuring the mean vorticity numbers Wn.

AB - A description on the systematic errors associated with the measurement of the vorticity numbers is presented and an application to a real example is discussed. We show that strong biases and systematic errors derive both from some physical assumptions (Jeffery or Mulchrone model) rarely encountered by natural systems as well as by the fact that these vorticity techniques require measurements of the geometrical parameters of porphyroblasts-matrix system by using outcrop surfaces or thin section methods that are inherently biased. Applying different vorticity plots we analyse an example and discuss in detail the effective systematic errors distribution and the ambiguity in measuring the mean vorticity numbers Wn.

M3 - Article

VL - 29

SP - 368

EP - 371

JO - Trabajos de Geología

JF - Trabajos de Geología

SN - 0474-9588

ER -