ESTONIAN GRAPTOLITE ARGILLITES REVISITED: A FUTURE RESOURCE?; pp. 4–18
The occurrence of Cambrian to Ordovician organic-rich black shale deposits has been known in Baltoscandia, including Estonia, for a long time. The Estonian graptolite argillite (GA) shows high to very high conÂcentraÂtions of U (800 ppm), Mo (1000 ppm), V (1600 ppm), Ni and other heavy metals, and...
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| Autori principali: | , |
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| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
Estonian Academy Publishers
2014-02-01
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| Serie: | Oil Shale |
| Accesso online: | https://kirj.ee/public/oilshale_pdf/2014/issue_1/oil-2014-1-4-18.pdf |
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