爱沙尼亚学术期刊
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作者:Peep Männik , Anne Põldvere , Viiu Nestor ...
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (1), pp.1-17Estonian Academy Publishers
摘要:A gap corresponding to several conodont and chitinozoan zones occurs in the Llandovery–Wenlock boundary interval in some sections in the western coastal region of Estonia and on islands in the Muhu Strait. New data from the Suigu (S-3) core section demonstrate that the gap h...
作者:Tarmo Kiipli , Sigitas Radzevičius , Toivo Kallaste
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (1), pp.18-29Estonian Academy Publishers
摘要:Integrated correlation of bentonites (altered volcanic ashes) and graptolite biozonation is presented. Detailed study of two Lithuanian drill core sections extended previous knowledge of the occurrence and composition of bentonites to the south. Identification of graptolite ...
作者:Maris Rattas , Pille Lomp , Argo Jõeleht
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (1), pp.30-44Estonian Academy Publishers
摘要:The sedimentary environments, morphology and formation of carbonate cement in the late glacial glaciofluvial outwash and beach deposits in northern Estonia are discussed. Cementation is observed in well-drained, highly porous carbonaceous debris-rich gravel and sand-forming,...
作者:Marko Vainu , Jaanus Terasmaa
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (1), pp.45-61Estonian Academy Publishers
摘要:Numerous lakes in the world serve as sensitive indicators of climate change. Water levels for lakes Ahnejärv and Martiska, two vulnerable oligotrophic closed-basin lakes on sandy plains in northeastern Estonia, fell more than 3 m in 1946–1987 and rose up to 2 m by 2009. Earl...
作者:Linda Hints
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (2), pp.63-70Estonian Academy Publishers
摘要:The two lowermost Darriwilian (Middle Ordovician) brachiopod species that were previously included in the genus Cyrtonotella are re-studied and compared with the type species Cyrtonotella semicircularis (Eichwald) from the St Petersburg Region. Based on the new data the classific...
作者:Olev Vinn
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (2), pp.71-75Estonian Academy Publishers
摘要:Late Pridoli Cruziana traces have recently been found in carbonate shelf sediments of the Ohesaare Formation on Saaremaa Island, Estonia. Cruziana isp. is interpreted here as a locomotory trace (repichnia) of an arthropod, possibly a trilobite. Cruziana traces previously known fr...
作者:Danuta Drzymulska
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (2), pp.76-87Estonian Academy Publishers
摘要:The Late Glacial and Holocene presence of Betula nana L. (dwarf birch) in northeastern Poland was reconstructed through palaeoecological analyses of sediment cores from the Taboły mire located in the territory of the Knyszyńska Forest. Peat records spanning thousands of year...
作者:Katrin Lasberg , Volli Kalm , Kersti Kihno
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (2), pp.88-96Estonian Academy Publishers
摘要:Radiocarbon and optically stimulated luminescence dates, together with bio- and lithostratigraphical data, revealed an interval of ice-free conditions between 72.2 OSL and 33.8 cal 14C ka BP at the Kileshino site (Valdaj Upland, Russia), corresponding to Marine Isotope Stage...
作者:Helen Hiiemaa , Mario Mustasaar , Marko Kohv ...
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (2), pp.97-107Estonian Academy Publishers
摘要:The protected Selisoo mire in northeastern Estonia is located above valuable oil shale resources, partly in the permitted mining area. We describe in detail the geomorphology and geological setting of the mire to understand the natural preconditions for its formation, develo...
作者:Kaupo Mändla , Sven-Erik Enno , Mait Sepp
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2014, Vol.63 (2), pp.108-117Estonian Academy Publishers
摘要:The relationships between the frequency and duration of thunderstorms, lightning and southern cyclones over Estonia are presented for the period 1950–2010. A total of 545 southern cyclones and 2106 thunderstorm days were detected, whereas 11.3% of the observed thunder days w...

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