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Dubniki lade

Dubniki lade on ülemdevoni ladestiku regionaalne lade.[1] Üleilmses standardis vastab sellele Frasnes'i lade, litostratigraafiliselt vastab sellele umbkaudu Dubniki kihistu. Lademe vanus on 359...364 miljonit aastat. Dubniki lademe all lamab Eestis Pļaviņase lade ja temal lasub Daugava lade. Läti aladel vastab sellele Salaspilsi lade.

Lade on nime saanud Dubniki kivimurru järgi Irboska lähistel, kus paljanduvad 12,5 meetri paksused rohekashalli savi kihid, mis vahelduvad kipsi ja dolomiidiga.[2] Lademe paksus Eestis on kuni 10 m.[1]

Lademe kivimkoosseisus on palju dolokivi, domeriiti ja savi.[3]

  1. 1,0 1,1 EE 12. köide, 2003: 41.
  2. Raukas, A., Teedumäe, A. (eds). 1997. Geology and Mineral Resources of Estonia. Estonian Academy Publishers, Tallinn. 436 pp. ISBN 9985-50-185-3.
  3. http://www.geoeducation.info/geoturism/ajaskaala.php (vaadatud 16.02.2013)
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Dubniki lade
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