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    The boreholes database is an inventory of subsurface data in Catalonia through the collection of available geological and geotechnical survey information. The surveys are classified into three groups: surveys, penetrometers and trial pits.

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    The Soil Map of Catalonia 1: 250 000 is the result of the synthesis of the edaphological data available at the time of its preparation, in 2018. This process, carried out by the Cartographic and Geological Institute of Catalonia, has consisted of in the compilation, analysis and correlation of the cartographic information obtained in the different soil mapping works that have been executed in Catalonia since the 70's of the last century.

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    The Soil Map at a scale of 1:25 000 is a map of edaphological content covering the entire surface of Catalonia, divided into 304 sheets defined according to the official 1:25 000 cut. It is a cartographic document that provides an overview of the edaphic structure of the country and, in summary, provides information on the distribution of soils in the territory, their morphologies, and their physical, chemical and biological characteristics. GT IV is the instrument for the realization of the Soil Map 1:25 000.

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    The Land Cover Map of Catalonia is a information set of high-resolution thematic cartography on the main types of land cover in the country, such as urban areas, agriculture, forestry or water bodies.

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    The map contains the land values in Barcelona in 1995.

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    The GeoBase of soils of Catalonia v1.0 is a database intended to store information on soils caught in the field and that necessary for generate soil maps of the territory of Catalonia at different scales, such as the Soil Map 1: 25,000 of Catalonia (MSC25M), or other maps that have been previously prepared (eg at scales 1: 25,000 and 1: 250,000). Contains information on soil profiles with varying levels of detail captured in the field (observations and pits), the composition on horizons, some of its physical and chemical characteristics as well as different types of soils that appear in an area, its spatial distribution.

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    Measuring and analyzing earth's gravitational field at the surface is one of the main tools to study the structure and composition of the Earth. The gravity method helps Geology in describing subsoil lithological variation based on density anomalies.

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    This method puts emphasis on the measurement of anomalies of the Earth's magnetic field, caused by the presence of reservoirs or structures on the subsurface. This technique allows to assess changes of nT in the Earth's magnetic field caused by the presence of some minerals. Those minerals are characterized by high magnetic susceptibility such as the magnetite.