An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland
Visual inspection and comparison of lithological, topographical, geochemical and geophysical maps is a necessary (and often successful) way of interpreting geological features across poorly exposed or poorly explored areas. In mineral exploration, geochemical and geophysical maps are used to visuall...
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ftjgeusbullet:oai:geusjournals.org:article/4902 2023-05-15T16:27:46+02:00 An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland Møller Stensgaard, Bo Rasmussen, Thorkild M. Steenfelt, Agnete 2006-11-29 application/pdf https://geusbulletin.org/index.php/geusb/article/view/4902 https://doi.org/10.34194/geusb.v10.4902 eng eng Geological Survey of Denmark and Greenland (GEUS) https://geusbulletin.org/index.php/geusb/article/view/4902/10570 https://geusbulletin.org/index.php/geusb/article/view/4902 doi:10.34194/geusb.v10.4902 GEUS Bulletin; Vol. 10 (2006): Review of Survey activities 2005; 37-40 2597-2154 2597-2162 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rapid Communication. Peer-reviewed Article. 2006 ftjgeusbullet https://doi.org/10.34194/geusb.v10.4902 2022-03-15T17:22:19Z Visual inspection and comparison of lithological, topographical, geochemical and geophysical maps is a necessary (and often successful) way of interpreting geological features across poorly exposed or poorly explored areas. In mineral exploration, geochemical and geophysical maps are used to visually identify anomalies believed to reflect mineral occurrences. Outcropping mineral occurrences of a certain size can produce elevated concentrations of elements in stream sediment samples, or create magnetic or radioactive signals retrievable by airborne surveys. However, if the regional data are widely spaced, and if the occurrences are small or poorly exposed, the anomalies created may be too subtle to be recognised visually. In such cases, statistical data analyses may help identify deviations from background variations and trends in the data. Furthermore, visually based correlation between distribution patterns on maps is often limited to a few parameters, and multi-variable relationships are easily overlooked or not possible to deduce. Gold occurrences in Greenland occur in specific host rocks as a result of mineralising processes, e.g. hydrothermal activity, that have affected a larger area. Thus, the favourable environment for a gold occurrence may be reflected in regional scale survey data as subtle changes in certain geochemical and geophysical properties. If such changes, i.e. a multi-parameter signature for gold mineralisation, can be identified, the regional data can be searched for areas that might hold the same signature. This paper presents results gained in the application of a statistical spatial analysis method to investigate how known gold showings are expressed in a range of regional datasets from the Nuuk region, southern West Greenland. The main objective is to identify new areas with gold potential, and to quantify the signatures of the showings. The first tests based on this approach were reported in Nielsen et al. (2004) and Steensgaard et al. (2006). Article in Journal/Newspaper Greenland Nuuk GEUS Bulletin (Geological Survey of Denmark and Greenland) Greenland Nuuk ENVELOPE(-52.150,-52.150,68.717,68.717) Geological Survey of Denmark and Greenland (GEUS) Bulletin 10 37 40 |
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GEUS Bulletin (Geological Survey of Denmark and Greenland) |
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English |
description |
Visual inspection and comparison of lithological, topographical, geochemical and geophysical maps is a necessary (and often successful) way of interpreting geological features across poorly exposed or poorly explored areas. In mineral exploration, geochemical and geophysical maps are used to visually identify anomalies believed to reflect mineral occurrences. Outcropping mineral occurrences of a certain size can produce elevated concentrations of elements in stream sediment samples, or create magnetic or radioactive signals retrievable by airborne surveys. However, if the regional data are widely spaced, and if the occurrences are small or poorly exposed, the anomalies created may be too subtle to be recognised visually. In such cases, statistical data analyses may help identify deviations from background variations and trends in the data. Furthermore, visually based correlation between distribution patterns on maps is often limited to a few parameters, and multi-variable relationships are easily overlooked or not possible to deduce. Gold occurrences in Greenland occur in specific host rocks as a result of mineralising processes, e.g. hydrothermal activity, that have affected a larger area. Thus, the favourable environment for a gold occurrence may be reflected in regional scale survey data as subtle changes in certain geochemical and geophysical properties. If such changes, i.e. a multi-parameter signature for gold mineralisation, can be identified, the regional data can be searched for areas that might hold the same signature. This paper presents results gained in the application of a statistical spatial analysis method to investigate how known gold showings are expressed in a range of regional datasets from the Nuuk region, southern West Greenland. The main objective is to identify new areas with gold potential, and to quantify the signatures of the showings. The first tests based on this approach were reported in Nielsen et al. (2004) and Steensgaard et al. (2006). |
format |
Article in Journal/Newspaper |
author |
Møller Stensgaard, Bo Rasmussen, Thorkild M. Steenfelt, Agnete |
spellingShingle |
Møller Stensgaard, Bo Rasmussen, Thorkild M. Steenfelt, Agnete An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland |
author_facet |
Møller Stensgaard, Bo Rasmussen, Thorkild M. Steenfelt, Agnete |
author_sort |
Møller Stensgaard, Bo |
title |
An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland |
title_short |
An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland |
title_full |
An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland |
title_fullStr |
An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland |
title_full_unstemmed |
An integrative and quantitative assessment of the gold potential of the Nuuk region, West Greenland |
title_sort |
integrative and quantitative assessment of the gold potential of the nuuk region, west greenland |
publisher |
Geological Survey of Denmark and Greenland (GEUS) |
publishDate |
2006 |
url |
https://geusbulletin.org/index.php/geusb/article/view/4902 https://doi.org/10.34194/geusb.v10.4902 |
long_lat |
ENVELOPE(-52.150,-52.150,68.717,68.717) |
geographic |
Greenland Nuuk |
geographic_facet |
Greenland Nuuk |
genre |
Greenland Nuuk |
genre_facet |
Greenland Nuuk |
op_source |
GEUS Bulletin; Vol. 10 (2006): Review of Survey activities 2005; 37-40 2597-2154 2597-2162 |
op_relation |
https://geusbulletin.org/index.php/geusb/article/view/4902/10570 https://geusbulletin.org/index.php/geusb/article/view/4902 doi:10.34194/geusb.v10.4902 |
op_doi |
https://doi.org/10.34194/geusb.v10.4902 |
container_title |
Geological Survey of Denmark and Greenland (GEUS) Bulletin |
container_volume |
10 |
container_start_page |
37 |
op_container_end_page |
40 |
_version_ |
1766017285870321664 |