• Imprimeix

Geological map 1:50,000

The Geological map of Catalonia 1:50,000 (MG50m v2, 2016) collects all the geological information of synthesis and continuous of all the territory, based on information available from the Department of Environment and Housing, Department of Territorial Policy and Public Works, Cartographic Institute of Catalonia, Geological Institute of Catalonia and the Geological and Mining Institute of Spain in 2016.

SHP format

The ZIP file that is downloaded includes the following SHP files:

  • mg50mv20sh0fl1.shp: Faults and folds (lines).
  • mg50mv20sh0cl1.shp: Contacts (sedimentary, metamorphic, igneous and hydrotermal) and geomorphologic elements (lines).
    It contains the following fields:
    • CODI_CAS: Object type encoding.
    • DESCRIPCIO: Description of the object.
  • mg50mv20sh0gp1.shp: Geological units (polygons).
    It contains the following fields:
    • CODI_CAS: Object type encoding (Epigraph unit).
    • DESCRIPCIO: Description of the unit.
    • ClasLitoEd: Classification according to lithology and age.
    • ERA: Geological era.
    • PERIODE: Geological period.
    • EPOCA: Geological epoch.
    • EDAT: Geological age.
    • MET: Type of metamorphism.
    • PROTOLIT: Protolith of the metamorphic unit.
    • EDAT_MET: Geological age of metamorphism.
  • mg50mv20sh0ap1.shp: Anthropogenic deposits (polygons).
    It contains the following fields:
    • CODI_CAS: Object type encoding (Epigraph unit).
    • DESCRIPCIO: Description of the unit.
    • EDAT: Assignment age: Anthropocene.
  • mg50mv20_01ca.pdf: Specifications for the ESRI Shapefile (SHP).
  • mgc50mv02sh0_00ca.style: ESRI style library.
  • MG50mv20sh0_00ca.lyr: Layerfile file for loading the recommended visualization for data and symbolization.

The geodetic reference system of the distributed data is ETRS89 UTM31N.


Legend of the geological map 1: 50,000 [PDF, 3 MB; catalan, April 2022]


Logo CC BY 4.0
This cartography is under the Creative Commons Attribution 4.0 International license.
More info

Geoíndex - Cartografia geològica
Download SHP (v2, 2016)
Download GeoPDF by region
WMS Geological cartography

This geoinformation can be used online in your applications supporting the WMS protocol

Geological Atlas of Catalonia
Mapa geològic amb llegenda interactiva (tessel·les)

Base de dades geològica (BG50M_v1r1, 2007)

Connector QGIS Open ICGC

Toolbar that allows direct and quick access to ICGC geoinformation

e-Shop

Foreword

This version of the previous distributions supports a new distribution data model and incorporates improvements in both attributes and geometries.

The geological information was made with reference to the cartographic base available at the time of the elaboration. That is why there may be divergences between the coastline of this geological information and the latest versions of cartographic bases of the ICGC.

The information in the Geological map 1:50,000 is organized into four groups of geological objects: faults and folds, contacts (sedimentary, metamorphic, igneous and hydrothermal) and geomorphological elements, geological units and anthropic deposits.

Each grouping of geological objects, although most cases correspond to bodies or surfaces in a 3D space, in distribution files (2D shapes) are represented according to the geometry associated (polygons, lines and points). Each geological object is characterized by a series of attributes.

Faults and folds

The different typologies of faults (normal, reverse, movement in direction, etc.), the thrusts and the trace of the axial surfaces of the different types of folds, of macroscopic scale are represented. The geological objects contained in this file are represented by lines that correspond to the intersection of the geological surfaces with the topography.

Contacts (sedimentary, metamorphic, igneous and hydrothermal) and geomorphological elements

The different types of contacts of sedimentary origin (contact concordant, discordant, etc.) and the layer lines are represented. In the sheets with metamorphic rocks, igneous rocks and rocks of hydrothermal origin also the limits of the metamorphic areas, the limits of the isogrades, and the different types of contacts that present the igneous rocks and the hydrothermal ones are represented. Also some geomorphological elements are represented (the geological objects contained in this file, are represented by lines that correspond to the intersection of the geological surfaces with the topography.

Geological units

Three-dimensional bodies corresponding to rock volumes characterized by lithology and geological age. Geological units are limited by different types of geological contacts, by faults, or by thrusts. Each lithological unit has its own distinctive unit epigraph. The abbreviations of the epigraph indicate, in most cases, the age and the main lithology of the unit. In the distribution file, the geological units are represented with polygons corresponding to the intersection of 3D geological bodies with the topographic surface.

Anthropogenic deposits

These are landfills and port works. They are represented as areas (polygons) that correspond to the intersection of the three-dimensional bodies of the deposits with the topographic surface.