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 con­centra­tions of U (800 ppm), Mo (1000 ppm), V (1600 ppm), Ni and other heavy metals, and...

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Principais autores:	SIGRID HADE, ALVAR SOESOO
格式:	Artigo
语言:	Inglês
出版:	Estonian Academy Publishers 2014-02-01
丛编:	Oil Shale
在线阅读:	https://kirj.ee/public/oilshale_pdf/2014/issue_1/oil-2014-1-4-18.pdf
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