• Geus Geonetworks metadata catalogue
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Geochemical Atlas of Stream sediment samples South-West Greenland

This view presents data from stream sediment geochemical mapping of West and South Greenland (Steenfelt, 2001a). Stream sediment samples were collected from 1979 to 1998 with as even coverage as possible from low-order streams and with a sampling density between 1 sample per 5 km2 and 1 sample per 50 km2, mostly around 1 sample per 30 km2. With few exceptions, the 0.1 mm grain size fractions of 500-g samples were analysed for major and trace elements by two or three methods. After careful quality control and elimination of bias between analytical values determined by different methods or at different times (calibration), the most reliable analytical data were selected as the final consistent dataset, containing data from 7122 samples analysed for up to 43 elements (see Steenfelt 1999, 2001b for details on data selection and calibration).

Major element oxides and volatiles are determined by X-Ray Fluorescence Spectrometry (XRF) and loss on ignition, respectively. Loss on ignition mostly reflects the amount of organic material in stream sediment samples. As the aim is to show the regional variation in the chemistry of the minerogenic component

of the stream sediment, volatiles are not included in the major element composition which is recalculated as volatile-free oxides. Instead, volatiles are listed in a separate column for documentation. Locally, high loss on ignition may be caused by high contents of carbonate in the stream sediment of streams draining rare occurrences of marble or carbonatites. For detailed or more accurate studies, the CO2 concentrations of the stream sediment samples should be measured, or the amount of carbonate minerals estimated by microscopy.

Trace element data are from methods determining total concentrations (XRF, Instrumental Neutron Activation, Delayed Neutron Counting). The quality of the trace element data varies (see Steenfelt 1999, 2001b)

In the present dataset, all values below lower detection limit are indicated by the digit 0.

Sample location

Before 1993, sample sites were originally marked on topographic maps at the scale 1:100,000 and their positions were later digitised and later again corrected, when a new topographic reference was introduced around year 2000. From 1993 onwards, GPS was used to determine sample positions.

Simple

Date (Revision)
2023-11-13
Identifier
dk:geus: / geochemical_atlas_sw_greenland
Presentation form
Digital map
Status
Completed
Point of contact
  Geological Survey of Denmark and Greenland (GEUS) - Simun Olsen
Maintenance and update frequency
As needed
GEMET - INSPIRE themes, version 1.0
  • Geology
  • Mineral resources
Keywords
  • Calibrated dataset
Continents, countries, sea regions of the world.
  • Greenland
Access constraints
Copyright
Use constraints
Copyright
Other constraints
Public access / The dataset can be used freely when acknowledged
Other constraints
Conditions for Re-use of data http://pubs.geus.net/et_dokument
Spatial representation type
Vector
Spatial representation type
Grid
Denominator
1
Distance
1  m
Metadata language
English
Topic category
  • Geoscientific information
  • Location
N
S
E
W
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Reference system identifier
EPSG / https://epsg.io/32624
Geometric object type
Point
Distribution format
  • Web Service ( 1.0 )

OnLine resource
Download ( WWW:DOWNLOAD-1.0-http--download )

Geochemical Atlas of Stream sediment samples from South and West Greenland for download

OnLine resource
Interactive map ( WWW:LINK-1.0-http--link )
OnLine resource
geochemistry_greenland_ss_sw ( OGC:WMS-1.3.0-http-get-map )

Geochemical Atlas of Stream sediment samples from South and West Greenland

OnLine resource
WFS ( OGC:WFS-1.0.0-http-get-capabilities )

South West Greenland stream sediments

OnLine resource
Publication ( WWW:LINK-1.0-http--link )

Agnete Steenfelt (1999) Compilation of data sets for a geochemical atlas of West and South Greenland based on stream sediment Danmarks og Grønlands Geologiske Undersøgelse Rapport 41

OnLine resource
Publication ( WWW:LINK-1.0-http--link )

Steenfelt, A., 2001. Calibration of stream sediment data for West and South Greenland. A supplement to GEUSReport 1999/41

OnLine resource
Publication ( WWW:LINK-1.0-http--link )

Steenfelt, A., 2001a. Geochemical atlas of Greenland – West and South Greenland. Danmarks og Grønlands Geologiske Undersøgelse Rapport 2001/46, 96 pp.

Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Explanation
This field has no significance
Pass
No
Statement
Non provided
File identifier
019cf744-b02c-4c12-91cc-3ffd5f9c2925 XML
Metadata language
English
Parent identifier
Geochemical Atlas samples South-West Greenland 8abf8aef-e244-4f70-9c48-a455cf4c32ae
Date stamp
2024-01-05T15:03:49
Metadata standard name
ISO 19115:2003 / ISO 19139:2007
Point of contact
  Geological Survey of Denmark and Greenland (GEUS) -
Denmark
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords


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