Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining
The protected Selisoo mire in northeastern Estonia is located above valuable oil shale resources, partly in the permitted mining area. We describe in detail the geomorphology and geological setting of the mire to understand the natural preconditions for its formation, development and preservation. W...
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doaj-164aa0063de743c3be34a9f7c96f61b52020-11-24T23:22:58ZengEstonian Academy PublishersEstonian Journal of Earth Sciences1736-47281736-75572014-05-016329710710.3176/earth.2014.0910.3176/earth.2014.09Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale miningHelen Hiiemaa0Mario Mustasaar1Marko Kohv2Tiit Hang3Argo Jõeleht4Katrin Lasberg5Volli Kalm6Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, Estonia; helen.hiiemaa@gmail.comInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, EstoniaInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, EstoniaInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, EstoniaInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, EstoniaInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, EstoniaInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, EstoniaThe protected Selisoo mire in northeastern Estonia is located above valuable oil shale resources, partly in the permitted mining area. We describe in detail the geomorphology and geological setting of the mire to understand the natural preconditions for its formation, development and preservation. We used the LiDAR-based digital elevation model for relief analysis, mapped the peat thickness with ground-penetrating radar and described the Quaternary cover through corings. Ridges, oriented perpendicular to the generally southward-sloping terrain, and shallow depressions at the surface of mineral soil have influenced mire formation and its spatio-temporal dynamics. The Quaternary cover under the mire is thin and highly variable. Therefore the mire is hydrogeologically insufficiently isolated from the limestone bedrock that is drained by the nearby oil shale mine and consequently the mining activities approaching the mire may have a negative influence on the wetland and proposed Natura 2000 site. Natura 2000 type wetlands, both protected or currently outside the nature reserves, cover a significant portion of the prospective oil shale mining areas. The distribution and resilience of those sites may significantly influence further utilization of oil shale resources.http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2014/issue_2/earth-2014-2-97-107.pdfmire initiationmire developmenthydrologydrainagehuman impactground penetrating radarlidar. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Helen Hiiemaa Mario Mustasaar Marko Kohv Tiit Hang Argo Jõeleht Katrin Lasberg Volli Kalm |
spellingShingle |
Helen Hiiemaa Mario Mustasaar Marko Kohv Tiit Hang Argo Jõeleht Katrin Lasberg Volli Kalm Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining Estonian Journal of Earth Sciences mire initiation mire development hydrology drainage human impact ground penetrating radar lidar. |
author_facet |
Helen Hiiemaa Mario Mustasaar Marko Kohv Tiit Hang Argo Jõeleht Katrin Lasberg Volli Kalm |
author_sort |
Helen Hiiemaa |
title |
Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining |
title_short |
Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining |
title_full |
Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining |
title_fullStr |
Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining |
title_full_unstemmed |
Geological settings of the protected Selisoo mire (northeastern Estonia) threatened by oil shale mining |
title_sort |
geological settings of the protected selisoo mire (northeastern estonia) threatened by oil shale mining |
publisher |
Estonian Academy Publishers |
series |
Estonian Journal of Earth Sciences |
issn |
1736-4728 1736-7557 |
publishDate |
2014-05-01 |
description |
The protected Selisoo mire in northeastern Estonia is located above valuable oil shale resources, partly in the permitted mining area. We describe in detail the geomorphology and geological setting of the mire to understand the natural preconditions for its formation, development and preservation. We used the LiDAR-based digital elevation model for relief analysis, mapped the peat thickness with ground-penetrating radar and described the Quaternary cover through corings. Ridges, oriented perpendicular to the generally southward-sloping terrain, and shallow depressions at the surface of mineral soil have influenced mire formation and its spatio-temporal dynamics. The Quaternary cover under the mire is thin and highly variable. Therefore the mire is hydrogeologically insufficiently isolated from the limestone bedrock that is drained by the nearby oil shale mine and consequently the mining activities approaching the mire may have a negative influence on the wetland and proposed Natura 2000 site. Natura 2000 type wetlands, both protected or currently outside the nature reserves, cover a significant portion of the prospective oil shale mining areas. The distribution and resilience of those sites may significantly influence further utilization of oil shale resources. |
topic |
mire initiation mire development hydrology drainage human impact ground penetrating radar lidar. |
url |
http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2014/issue_2/earth-2014-2-97-107.pdf |
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