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Article . 2007
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Ricostruzione 3D dai dati di terreno: struttura del M. Misma, Sudalpino Centrale.

Authors: Salvi F; Sterlacchini S; Zanchi A;

Ricostruzione 3D dai dati di terreno: struttura del M. Misma, Sudalpino Centrale.

Abstract

In questo lavoro viene sinteticamente presentata una procedura che permette la ricostruzione di corpi geologici nelle tre dimensioni dello spazio, sulla base dei dati di superficie. Tale metodologia sfrutta i principali strumenti insiti nei SIT (Sistemi Informativi Territoriali) per la gestione dei dati in 2D ed il programma gOcad® per le modellazioni 3D. La procedura si basa principalmente su tre fasi: una prima di raccolta dei dati topografici e geologici; una seconda di informatizzazione dei dati e una terza di ricostruzione 3D. La ricostruzione delle superfici sepolte si basa essenzialmente sulle sezioni geologiche. Per questo motivo si è cercato di rendere automatici alcuni passaggi nella realizzazione delle sezioni, per rendere minimo l'errore nell'interpretazione geologica, per quanto possibile, nelle prime fasi. L'esempio considerato in questo lavoro mostra la ricostruzione 3D della struttura del Monte Misma (Bergamo), che si sviluppa nei sistemi di thrust e pieghe sud-vergenti del settore frontale del Sudalpino Centrale. La ricostruzione 3D di una struttura geologica permette di verificare e migliorare l'interpretazione profonda, anche sulla base dei soli dati di terreno. Inoltre la definizione della geometria e del volume di un corpo geologico può avere notevoli implicazioni in differenti contesti (es. indagini minerarie e/o petrolifere, modellazioni numeriche).

A 3D geological modelling methodology is briefly presented in this work. This procedure allows to reconstruct complex geological bodies using topographic and structural-geological data. The main constraints considered for the geological surfaces reconstruction are the geological cross-sections. GIS (Geographic Information System) tools and functions have been exploited for 2D data management, while gOcad® software for 3D modelling. The proposed methodology consists in three main steps: i) data acquisition; ii) data storage in a GIS; iii) 3D surface and volume reconstruction. This methodology has been applied for the 3D reconstruction of the Monte Misma anticline (Bergamo), localized in the thrust and fold systems of the frontal part of the Central Southern Alps. This 3D geological reconstruction allows to check and improve the geological interpretation of the buried surfaces. Moreover the geological surfaces and volumes definitions can be very useful in the different environment of the Earth Sciences (eg. oil exploration; numerical modelling; geophysical data processing, etc.).

Country
Italy
Keywords

Sudalpino, Geologia Strutturale, Ricostruzione 3D, gOcad, GIS

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green