Baetic System Geological Map

Metadata for the Dataset "Baetic System Geological Map" — Version 1.0

1. General Information

• Title: Baetic System Geological Map (Version 1.0)

• Description:
This document summarises the metadata of the geospatial dataset containing
vector layers representing the geological extent of the Baetic System in
southern Spain. The dataset includes polygon features representing the
mountain system, tectonic discontinuities represented as line features,
and a rectangular envelope polygon covering the spatial extent of the
Baetic System layer.

• Author: Oliver Gutiérrez Hernández (orcid.org/0000-0003-2580-5465)
• Department: Department of Geography
• Institution: University of Málaga
• Email: olivergh@uma.es

2. Dataset Structure

The dataset is organised into folders according to the coordinate reference
system used.

• 1.1_Geodata_wgs84
  Contains the geospatial layers stored in the WGS84 geographic
  coordinate system.

• 1.2_Geodata_etrs89
  Contains the same geospatial layers provided in the ETRS89
  coordinate reference system.

Both folders contain identical geospatial layers differing only in the
coordinate reference system.

Each folder includes the following layers:

• Baetic_system
  Polygon layer representing the spatial boundaries of the Baetic System.

• Tectonic_discontinuities
  Line layer representing major tectonic discontinuities associated with
  the Baetic System.

• Baetic_system_envelope
  Rectangular polygon envelope covering the spatial extent of the
  Baetic System layer.

Within each folder the layers are provided in two formats:

• Shapefile (.shp, .dbf, .shx, .prj, etc.)
• GeoPackage (.gpkg)

The folder "0_Source" contains the original reference material used for
the compilation of the dataset.

3. Spatial Reference Systems

The dataset is distributed using two geographic coordinate reference
systems.

ETRS89

Geographic Coordinate System: GCS_ETRS_1989
Datum: D_ETRS_1989
Prime Meridian: Greenwich
Angular Unit: Degree
EPSG code: 4258 — ETRS89

WGS84

Geographic Coordinate System: GCS_WGS_1984
Datum: D_WGS_1984
Prime Meridian: Greenwich
Angular Unit: Degree
EPSG code: 4326 — WGS 84

4. Geometry and Structure

Baetic_system
Geometry type: Polygon
Description: Spatial boundaries of the Baetic System derived from
geological regionalisation.

Tectonic_discontinuities
Geometry type: Line
Description: Major tectonic discontinuities within the Baetic System.

Baetic_system_envelope
Geometry type: Polygon
Description: Rectangular envelope polygon representing the spatial
extent of the Baetic System layer.

5. Fields and Data Types

5.1 Baetic_system layer

System
Name of the mountain system
Data type: Text (string)

Domain
Geological domain within the Baetic System
Data type: Text (string)

Region
Geographic region where the system is located
Data type: Text (string)

Possible values:

System
Baetic system

Domain
Baetic Mountain Ranges
Cenozoic Basins

Region
Iberian Peninsula

5.2 Tectonic_discontinuities layer

Tectonic
Type of tectonic structure represented by the line feature
Data type: Text (string)

Possible value:

Fault

These features represent major tectonic discontinuities associated with
the Baetic System.

6. Data Processing

The Baetic System boundaries were extracted from the geological regions
map of the Iberian Peninsula and the Balearic Islands from the Atlas
Nacional de España (Instituto Geográfico Nacional). During the
digitisation process, special care was taken to preserve the geometry of
the original cartographic source as faithfully as possible.

The Baetic System polygons were obtained by extracting the corresponding
geological region from the complete map. Unnecessary elements from the
original dataset were removed in order to simplify the layer and reduce
file size. Only the minimum set of attribute fields required for the
dataset was retained.

The layer "Tectonic_discontinuities" was derived from the same geological
reference sources and represents major tectonic discontinuities
associated with the Baetic System.

The layer "Baetic_system_envelope" was generated using the tool
"Minimum Bounding Geometry (Data Management)" in ArcGIS Pro,
producing a rectangular polygon representing the spatial extent
of the Baetic System layer.

All digitisation, editing and geoprocessing tasks were carried out
in a GIS environment.

6.1 Terminology

The term "Baetic System" is used throughout this dataset to refer to
the mountain system commonly known as the Baetic or Betic Cordillera.
This terminology follows the usage adopted in:

Tapiador, F. J. (2020).
The Geography of Spain.
Springer International Publishing.
https://doi.org/10.1007/978-3-030-18907-5

7. Source Data

The folder "0_Source" contains the original reference material used
for the delineation of the Baetic System boundaries.

Primary cartographic source:

Grandes regiones geológicas de la península ibérica y Baleares
Atlas Nacional de España (ANE)
Instituto Geográfico Nacional (IGN)
Year: 2004
Scale: 1:6,500,000
Format: PDF

This map served as the main cartographic reference for the compilation
and digitisation of the Baetic System boundaries.

Additional geological reference:

Vera, J.A. (ed.) (2004)
Geología de España
Sociedad Geológica de España (SGE) –
Instituto Geológico y Minero de España (IGME)
Madrid, 890 p.

8. License and Attribution

The original cartographic material from the Atlas Nacional de España
(Instituto Geográfico Nacional) is distributed under a license compatible
with Creative Commons Attribution 4.0 (CC BY 4.0) according to
Orden FOM/2807/2015 regulating geographic information products and
services in Spain.

Users must acknowledge the origin of the original data when using
derived products.

Recommended attribution:

Derived work from
Atlas Nacional de España — Mapas temáticos del ANE
Instituto Geográfico Nacional (IGN).

9. Keywords

Baetic System
Baetic Cordillera
Betic mountain system
tectonic discontinuities
geological regions
Iberian Peninsula
GIS dataset
geomorphology