On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland
Drilling data on the stratigraphic position of recently discovered clay occurrences containing kaolinite are given. Preliminary information on the clay minerals involved is included. The weathering undergone by the Precambrian rocks underlying the clays is described briefly. Secondary enrichment of...
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| Language: | English |
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Geological Society of Finland
1975-12-01
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| Series: | Bulletin of the Geological Society of Finland |
| Online Access: | http://www.geologinenseura.fi/bulletin/Volume47/sgs_bt_047_pages_083_091.pdf |
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doaj-72b9e7d79c3b4221bf4652a26f5598c12020-11-25T00:08:07ZengGeological Society of FinlandBulletin of the Geological Society of Finland0367-52111799-46321975-12-01471-2839110.17741/bgsf/47.1-2.010On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, FinlandK. LaajokiDrilling data on the stratigraphic position of recently discovered clay occurrences containing kaolinite are given. Preliminary information on the clay minerals involved is included. The weathering undergone by the Precambrian rocks underlying the clays is described briefly. Secondary enrichment of iron caused by weathering in iron formations as revealed by partial ore analyses is presented. The clays lie between strongly folded Karelidic rocks and Quaternary deposits, and are thus Preglacial in age. Owing to the varying kaolinite content (0–60 %) and the thick Quaternary overburden the clays are not economically exploitable. The kaolin of Pihlajavaara, which some authors have considered to be of Karelian age, is correlated by the present author with Preglacial clays. http://www.geologinenseura.fi/bulletin/Volume47/sgs_bt_047_pages_083_091.pdf |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
K. Laajoki |
| spellingShingle |
K. Laajoki On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland Bulletin of the Geological Society of Finland |
| author_facet |
K. Laajoki |
| author_sort |
K. Laajoki |
| title |
On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland |
| title_short |
On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland |
| title_full |
On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland |
| title_fullStr |
On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland |
| title_full_unstemmed |
On the stratigraphic position of kaolin in Väyrylänkylä, South Puolanka area, Finland |
| title_sort |
on the stratigraphic position of kaolin in väyrylänkylä, south puolanka area, finland |
| publisher |
Geological Society of Finland |
| series |
Bulletin of the Geological Society of Finland |
| issn |
0367-5211 1799-4632 |
| publishDate |
1975-12-01 |
| description |
Drilling data on the stratigraphic position of recently discovered clay occurrences containing kaolinite are given. Preliminary information on the clay minerals involved is included. The weathering undergone by the Precambrian rocks underlying the clays is described briefly. Secondary enrichment of iron caused by weathering in iron formations as revealed by partial ore analyses is presented. The clays lie between strongly folded Karelidic rocks and Quaternary deposits, and are thus Preglacial in age. Owing to the varying kaolinite content (0–60 %) and the thick Quaternary overburden the clays are not economically exploitable. The kaolin of Pihlajavaara, which some authors have considered to be of Karelian age, is correlated by the present author with Preglacial clays.
|
| url |
http://www.geologinenseura.fi/bulletin/Volume47/sgs_bt_047_pages_083_091.pdf |
| work_keys_str_mv |
AT klaajoki onthestratigraphicpositionofkaolininvayrylankylasouthpuolankaareafinland |
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