Lichens and Rocks: A Review

Lichens, especially saxicolous (rock-in-habiting) lichens, are encountered almost daily by the field geologist. Despite the difficulties in readily identifying lichens, there is increasing evidence that many species have a preference for some rock types, and that certain species can chemically modif...

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Main Author: Easton, R. M.
Format: Article in Journal/Newspaper
Language:English
Published: Geological Association of Canada 1994
Subjects:
Online Access:https://journals.lib.unb.ca/index.php/GC/article/view/3831
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spelling ftuninewbrunojs:oai:ojs.journals.lib.unb.ca:article/3831 2023-05-15T17:46:39+02:00 Lichens and Rocks: A Review Easton, R. M. 1994-06-06 application/pdf https://journals.lib.unb.ca/index.php/GC/article/view/3831 eng eng Geological Association of Canada https://journals.lib.unb.ca/index.php/GC/article/view/3831/4345 https://journals.lib.unb.ca/index.php/GC/article/view/3831 Copyright (c) 2015 Geoscience Canada Geoscience Canada; Volume 21, Number 2 (1994) 1911-4850 0315-0941 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1994 ftuninewbrunojs 2022-07-11T11:47:51Z Lichens, especially saxicolous (rock-in-habiting) lichens, are encountered almost daily by the field geologist. Despite the difficulties in readily identifying lichens, there is increasing evidence that many species have a preference for some rock types, and that certain species can chemically modify their substrate. There is also increasing evidence that certain lichens, some of which change colour based on absorbed metal content, may make effective indicator plants in mineral exploration, particularly in areas such as the Northwest Territories. Résumé À tous les jours ou presque, le géologue de terrain peut observer des lichens et particulièrement les lichens saxicoles. Bien qu'il ne soit pas facile d'identifier rapidement les lichens, un nombre croissant d'indices montrent que plusieurs espèces ont un penchant pour certains types de roche, et que certaines espèces peuvent altérer chimiquement leur substrat. Il est également de plus en plus évident que certains lichens changent de couleur en fonction des métaux absorbés, et qu'il pourrait en cela être de bons végétaux indicateurs pour l'exploration minérale, particulièrement dans des régions comme celles des Territoires du Nord-ouest. Article in Journal/Newspaper Northwest Territories Territoires du Nord-Ouest University of New Brunswick: Centre for Digital Scholarship Journals Northwest Territories
institution Open Polar
collection University of New Brunswick: Centre for Digital Scholarship Journals
op_collection_id ftuninewbrunojs
language English
description Lichens, especially saxicolous (rock-in-habiting) lichens, are encountered almost daily by the field geologist. Despite the difficulties in readily identifying lichens, there is increasing evidence that many species have a preference for some rock types, and that certain species can chemically modify their substrate. There is also increasing evidence that certain lichens, some of which change colour based on absorbed metal content, may make effective indicator plants in mineral exploration, particularly in areas such as the Northwest Territories. Résumé À tous les jours ou presque, le géologue de terrain peut observer des lichens et particulièrement les lichens saxicoles. Bien qu'il ne soit pas facile d'identifier rapidement les lichens, un nombre croissant d'indices montrent que plusieurs espèces ont un penchant pour certains types de roche, et que certaines espèces peuvent altérer chimiquement leur substrat. Il est également de plus en plus évident que certains lichens changent de couleur en fonction des métaux absorbés, et qu'il pourrait en cela être de bons végétaux indicateurs pour l'exploration minérale, particulièrement dans des régions comme celles des Territoires du Nord-ouest.
format Article in Journal/Newspaper
author Easton, R. M.
spellingShingle Easton, R. M.
Lichens and Rocks: A Review
author_facet Easton, R. M.
author_sort Easton, R. M.
title Lichens and Rocks: A Review
title_short Lichens and Rocks: A Review
title_full Lichens and Rocks: A Review
title_fullStr Lichens and Rocks: A Review
title_full_unstemmed Lichens and Rocks: A Review
title_sort lichens and rocks: a review
publisher Geological Association of Canada
publishDate 1994
url https://journals.lib.unb.ca/index.php/GC/article/view/3831
geographic Northwest Territories
geographic_facet Northwest Territories
genre Northwest Territories
Territoires du Nord-Ouest
genre_facet Northwest Territories
Territoires du Nord-Ouest
op_source Geoscience Canada; Volume 21, Number 2 (1994)
1911-4850
0315-0941
op_relation https://journals.lib.unb.ca/index.php/GC/article/view/3831/4345
https://journals.lib.unb.ca/index.php/GC/article/view/3831
op_rights Copyright (c) 2015 Geoscience Canada
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