Proceedings of the Estonian Academy of Sciences, Geology |
Kluczowe wyrazy i wyrażenia
acanthodian actinopterygian Andreolepis hedei argillaceous Baltic bioclastic biomicritic limestone bioturbated Biozone boundary brachiopods calcareous calcite carbonate Central Urals chitinozoans conodont correlation cyclicity deposits discontinuity surfaces dolomite dolostones drill core Eisenack Estonia Estonian Acad free field ganoine Geol Gotland grainstone hardgrounds hedei Gross Hemse Beds intercalations interlayers interval Jaagarahu Formation Jaani Formation Jamaja Formation Kaljo kihistu layer limestones lithological Llandovery Lophosteus lower Ludlow luminescence marlstone Marss martinssoni Matukhin mesocyclite middle Llandovery Middle Riksu Beds Milankovitch cycles minicyclite Mohkiila Beds mollusc shells Muhu Muhu formations Nestor & Einasto nodular Nostolepis open shelf optical OSA signal Ozarkodina Paadla Formation packstone Pander Pfidoli platelets pyritized ridges Riksu core Riksu Formation Riksu section Russian Saaremaa samples scales sediments Severnaya Zemlya shelf facies Silurian skeletal Slite Beds species Stage stratigraphical stromatoporoids submesocyclites tabulate corals Tabuska Teedumae thelodont Thelodus Ufa River upper uppermost vertebrates wackestone walliseri Wenlock X-ray