8040e7e6-9ace-4983-85ab-d6081dc81329 Geological Survey of Denmark and Greenland (GEUS) gis-support@geus.dk 2026-03-02T11:47:13.893115Z ISO 19115:2003/19139 1.0 ETRS89 / UTM 32N (EPSG:25832) EPSG The marine raw material database, Marta 2019-01-01 dk_marta_inspire dk.geus The MARTA database contains shallow seismic and acoustic data, information and geological samples. MATRA shows the distribution of marine sand and gravel resources and gives access to reports on raw material surveys. MARTA shows the distribution of marine sand and gravel resources and gives access to reports on raw material surveys. Data has primarily been acquired by GEUS and our partners., MARTA is the official Danish marine raw material database for data reported in accordance with the Danish Raw Material Act. MARTA is used by the raw materials industry and authorities and as a planning tool in connection with raw material extraction and marine construction projects including beach nourishment. Data sets relevant for marine raw material extraction Jørgen O. Leth Geological Survey of Denmark and Greenland (GEUS) jol@geus.dk Bjarni Pjetursson Geological Survey of Denmark and Greenland (GEUS) bjp@geus.dk https://metadata.geus.dk/geonetwork/srv/api/records/8040e7e6-9ace-4983-85ab-d6081dc81329/attachments/INSPIRE%20-%20datas%C3%A6t.jpg Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme INSPIRE Geophysics Shallow seismic Database Computational geoscience, informatics and remote sensing Energy and resources Research Topics 2025-11-03 geonetwork.thesaurus.local.theme.GEUSResearchTopics Denmark Geographic 2025-12-11 geonetwork.thesaurus.local.place.Geoplaces_SKOS_da_en No limitations to public access. No limitations to public access CC BY 4.0 100 geoscientificInformation 3.00 16.00 54.00 58.00 None specified WMS Bjarni Pjetursson Geological Survey of Denmark and Greenland (GEUS) bjp@geus.dk http://data.geus.dk/geusmap/?mapname=marta WWW:LINK-1.0-http--link Interactive webmap Interactive map displaying the dataset. Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 http://data.europa.eu/eli/reg/2010/1089 See the referenced specification true The MARTA database contains data from the late 1970s until today. Data acquired until the mid 1990s, in general, are only stored as analogue data in paper printout format. These data are, however, continuously being scanned and will during the coming years be available in digital formats. . Data younger than the mid-1990s are available in digital formats such as XTF sidescan sonar data and SEG-Y seismic data. The positioning has undergone a technological development from the inaccurate Decca positioning system to today's DGPS and RTK systems system with a meter-scale accuracy. For the analogue data older than approximately 1997 MARTA only provides metadata i.e. sailing lines and information on instrumentation. For the digital data, MARTA provides access to the real data beside the metadata. The largest part of the digital data is free for download.