The GIS ANDES Project

The different layers of the system, which can of course be combined in any way that the user sees fit, are both geographic and geologic (in the broad sense):

• Geographic — a DCW ® geographic base;
• DEM — three digital elevation models with a structural analysis of the detailed topography;
• Imagery — SPOT 4 Vegetation ® satellite images;
• Geological synthesis — synthetic geological map of the Andes at 1:2,000,000 scale;
• Geological map coverage — more than 1100 georeferenced maps;
• Seismic — more than 50,000 seismic records, with modelling of the subduction plane;
• Volcanic — data on the Holocene volcanism;
• Gravimetric — the Bouguer anomaly calculation; isostatic correction and corresponding residual anomalies; vertical gradient calculation and structural analysis;
• Heat flow — a base with 251 oceanic data and 239 continental data;
• Geothermal Resources;
• Geochemistry — a geochemical database (3935 whole-rock analyses) from which it is possible, for example, to identify zones of adakitic magmatic activity – a new gold metallotect;
• Ore deposits — linked to a database under Access ® and using a new metallogenic lexicon;
• Mining districts and provinces — location, main features, potential;
• Geodynamics — the geodynamic evolution of the Andean margin with a series of palinspastic maps from 10 Ma onwards.