Examples of the economic influence of preglacial weathering and planation in Finland
Mainly referring to his former studies, the writer discusses the significance of preglacial weathering and planation from the point of view of economic utilization. The economic effects of weathering and planation are classified into six different categories: the formation of mineral raw materials...
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| Format: | Article |
| Language: | English |
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Geographical Society of Finland
1985-02-01
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| Series: | Fennia: International Journal of Geography |
| Online Access: | https://fennia.journal.fi/article/view/9079 |
| _version_ | 1818107551863013376 |
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| author | Heikki Niini |
| author_facet | Heikki Niini |
| author_sort | Heikki Niini |
| collection | DOAJ |
| description | Mainly referring to his former studies, the writer discusses the significance of preglacial weathering and planation from the point of view of economic
utilization. The economic effects of weathering and planation are classified into six different categories: the formation of mineral raw materials, the decrease of the ore value, drawbacks in construction, the influence by way of topography on the feasibility of construction and on the occurrence of water, and the influence on geologic field‑study methods. In the case of the Päijänne‑Helsinki water‑conveyance tunnel, 120 km in length – the world's
longest tunnel in crystalline bedrock – the economic significance of the occurrence of preglacial weathered fracture zones is calculated to amount to at least several tens of millions of Finnish marks. |
| first_indexed | 2024-12-11T02:01:16Z |
| format | Article |
| id | doaj.art-ec410a14e2874a21a203ab6a9e8f54e2 |
| institution | Directory Open Access Journal |
| issn | 1798-5617 |
| language | English |
| last_indexed | 2024-12-11T02:01:16Z |
| publishDate | 1985-02-01 |
| publisher | Geographical Society of Finland |
| record_format | Article |
| series | Fennia: International Journal of Geography |
| spelling | doaj.art-ec410a14e2874a21a203ab6a9e8f54e22022-12-22T01:24:29ZengGeographical Society of FinlandFennia: International Journal of Geography1798-56171985-02-011632Examples of the economic influence of preglacial weathering and planation in FinlandHeikki Niini0Laboratory of Economic Geology, Helsinki University of Technology,Mainly referring to his former studies, the writer discusses the significance of preglacial weathering and planation from the point of view of economic utilization. The economic effects of weathering and planation are classified into six different categories: the formation of mineral raw materials, the decrease of the ore value, drawbacks in construction, the influence by way of topography on the feasibility of construction and on the occurrence of water, and the influence on geologic field‑study methods. In the case of the Päijänne‑Helsinki water‑conveyance tunnel, 120 km in length – the world's longest tunnel in crystalline bedrock – the economic significance of the occurrence of preglacial weathered fracture zones is calculated to amount to at least several tens of millions of Finnish marks.https://fennia.journal.fi/article/view/9079 |
| spellingShingle | Heikki Niini Examples of the economic influence of preglacial weathering and planation in Finland Fennia: International Journal of Geography |
| title | Examples of the economic influence of preglacial weathering and planation in Finland |
| title_full | Examples of the economic influence of preglacial weathering and planation in Finland |
| title_fullStr | Examples of the economic influence of preglacial weathering and planation in Finland |
| title_full_unstemmed | Examples of the economic influence of preglacial weathering and planation in Finland |
| title_short | Examples of the economic influence of preglacial weathering and planation in Finland |
| title_sort | examples of the economic influence of preglacial weathering and planation in finland |
| url | https://fennia.journal.fi/article/view/9079 |
| work_keys_str_mv | AT heikkiniini examplesoftheeconomicinfluenceofpreglacialweatheringandplanationinfinland |