GeolIT3D three dimensional modelling and visualization of geological data

Update: 06/12/2010

 

The Italian Geological Survey has expanded its institutional activities of data collection and dissemination promoting a project of 3D geological modelling and visualization.
Several 3D models have been built in different geological domains, ranging from the Apenninic fold and thrust belt to the alluvial plains of the Tevere River, to test the full applicability of the CARG database and other geological database. The three-dimensional modeling techniques have been applied to a variety of geological areas, at various scales, to achieve different purposes.

 

3D Models	Geological domain	Area (km2)	Depth (m)	Data surface	Data subsurface	Purpose
Fossombrone	Northern Apennines	600	3500	Field data (1:10,000) Attitude data	Cross-sections Well stratigraphies Seismis profiles	3D representation geologica sheet
Firenze	Alluvial plain	25	100		Cross-section Well stratigraphies Dedrock isobaths map	Analysis of rock volumes
Polino	Central Apennines	18	400	Field data(1:10,000)	Cross-sections	Paleogeographic reconstruction
Cimini	Volcanic area	250	3000	Field data(1:10,000)	Well stratigraphies Bedrock isobath map	Hydrogeological complexes
Vette Feltrine	Southern Alps	300	2500	Field data(1:10.000) Attitude data	Cross sections	Structural restoration
Plio-pleistocenic clays	Adriatic foredeep	50,450	4,100	-	Deep well stratigraphies	Analysis of rock volumes
Fiumicino	Deltaic area	80	100	Field data (1:10,000)	Deep well stratigraphies	3D representation subsoil geological sheet

 

At he moment the construction of the 3d model of the geological sheet Fiumicino is in progress.
The final objective of this work is to share 3D data and models with end-users via the Internet ( D'Ambrogi et alii, 2010).

 

 

 

3D spatial data	number
Deep wells	1,394
Deep Sea Drilling Project/Ocean Drilling wells Project	19
	[number] (km)
CROP Project - interpreted sections	[4] (776)
	number
CSI-earthquake hypocentres	38,529
	max depth/equidistance value
Base of Pliocene isobaths map	9 km/500 m
Moho isobath maps	56 km/2 km
Lithosphere thickness map	130 km/20 km
	cell size (degree)
Lithosphere-astenosphere system	1°x1°
other spatial data	[number] (length km)
CROP Project - seisemic lines sismiche on-shore TWT	[17] (1,254)
CROP Project - seisemic lines sismiche off-shore TWT	[46] (8,740)
	number of measurement points
Heat flow	2,700
Gravity anomalies	277,863 on-shore 80,288 off-shore