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CONCRETIONS WITH FOSSILS OF THE ULYANOVSK REGION - A NEW KIND OF JEWELRY-ORNAMENTAL RAW MATERIALS

Concretions with fossils of the Ulyanovsk region are a new kind of jewelry and ornamental raw materials. Concretions are located in the middle part of the section of the Hauterivian sediments, which formed by dark gray dense clays. Concretions are dense, of dark gray or black colour, abundant with f...

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Bibliographische Detailangaben
1. Verfasser: D. A. Petrochenkov
Format: Artigo
Sprache:Russo
Veröffentlicht: Sergo Ordzhonikidze Russian State University for Geological Prospecting 2018-04-01
Schriftenreihe:Известия высших учебных заведений: Геология и разведка
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Online Zugang:https://www.geology-mgri.ru/jour/article/view/293
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