Proceedings of the Estonian Academy of Sciences, Geology |
Common terms and phrases
0.7-m-thick limestone interbed Adsel Aeronian Aizpute Aizpute core altered volcanic ash anomaly anoxic environment authigenic AVA bed average Baltic Sea basin Biozone black shale CaO content carbonate characterized clay minerals Conochitina Dictyonema Shale diversity Dobele Formation Eesti elements episodes and events Estonian Estonian Acad Estonian Academy Estonian sections eustasy Geol Geological Gotland graptolitic grey shale increase interlayer interval Ireviken Jaagarahu Stage Jaanusson Jamaja Formation Jiirgenson K-feldspar Kaljo Kallaste Kielan-Jaworowska KIIPLI Kinnekulle Kinnekulle bed Latvia Laufeld limestone lithology lower metabentonites metals microfossils Middle Ordovician mineralogy Nestor Ohesaare section Ordovician organic matter Paaskiila Hillock Piper & Isaacs Pistoprion transitans Polychaetaspis polychaete potassium feldspar Primo Episode pyrite redox rock Russian Saaremaa SARTENAER scolecodonts seawater Secundo Episode sediment sequence Silurian SiO2/Al2O3 ratio Slite Slitebrottet species specimens sulphate-reducing Tallinn terrigenous type series upper Vattenfallet volcanic ash volcanic ash bed water column Wenlock West Latvia