834f5631-83f1-498b-87f3-48d50ebed654 Aineisto Geological Survey of Finland geodata@gtk.fi 2024-03-05T14:11:10 EPSG:4326 EPSG:3067 Seabed samples 2020-05-19 http://paikkatiedot.fi/so/1001770 The map compiles seabed samples since 1985 onwards. The data includes geographic data and metadata related to each sample, mainly based on the data produced by the Geological Survey of Finland The purpose of seabed sampling is to ensure the accuracy of the interpretation of the acoustic-seismic profiles, and to acquire material for sediment studies. On the basis of sediment samples, it is possible to investigate e.g. stratigraphy, thickness of the sedimentary units, grain composition as well as geochemical properties of the marine sediments MarineFinland.fi -portal EMODnet Geology -portal Geological Survey of Finland Vuorimiehentie 5 Espoo 02152 FI geodata@gtk.fi Not-Inspire Paikkatietohakemiston asiasanasto 2010-02-03 geonetwork.thesaurus.external.theme.asiasanasto Marine Geology Finland Baltic Sea Holocene - Precambrian Seabed Sediments Substrates Seabed samples Marine geology Marine Spatial Planning Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.inspire-theme no limitations to public access Geological Survey of Finland's basic licence planningCadastre 16.011335 28.598984 56.992895 65.767768 ESRI file geodatabase https://hakku.gtk.fi/en/locations/search?location_id=209 WWW:LINK-1.0-http--link https://gtkdata.gtk.fi/maankamara/ WWW:LINK-1.0-http--link https://gtkdata.gtk.fi/arcgis/services/Rajapinnat/GTK_Maapera_WMS/MapServer/WMSServer?&service=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image/png&TRANSPARENT=true&LAYERS=merenpohjan_naytepaikat&CRS=EPSG:3067&STYLES=&WIDTH=400&HEIGHT=600&BBOX=61600,6541100,543000,7350300 OGC:WMS-1.3.0-http-get-capabilities http://gtkdata.gtk.fi/arcgis/services/Rajapinnat/GTK_Maapera_WFS/MapServer/WFSServer?request=GetFeature&service=WFS&typeName=merenpohjan_naytepaikat OGC:WFS 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 Dataset is not conformant with INSPIRE regulations. false Possible sampling sites will be selected based on the acoustic-seismic profile. Depending on the research purpose, samples are taken either with long sediment corer (e.g. vibrohammer cores, piston corer, gravity corer) or surface sediment corer (e.g. Gemax corer, Box corer, Van Veen Grab sampler, Oscorer). The piston corer -type sampler is used for taking the long sediment cores from soft substrates. For taking of the long sediment cores from hard substrates (such as till, sand or gravel), vibro hammer corer is used. Gemax corer (maximum sample length 0.5 m down from the seabed surface) is used for taking sediment cores from soft sediment bottom. It is used mainly for environmental studies, e.g. investigating the short-term changes in the nutrient and heavy metal loading. The principle of sampling is to recover undisturbed sediment sample from the seabed. Onboard research vessel the sediment core/sample material is described and photographed. The geological interpretation with possible drawings are added to the observation forms/sheets. In general, the subsamples are stored for laboratory examinations. The results of grain size analyses and geochemical analyses are stored in the Labtium laboratory database and in the GTK database.