Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Sven Siir"'
Publikováno v:
Estonian Journal of Earth Sciences, Vol 64, Iss 2, Pp 140-158 (2015)
Twenty-six samples from two major altered volcanic ash beds, Kinnekulle and BII Bentonite of the Kuressaare core section (K-3), Saaremaa Island, were explored to record the geochemical and mineralogical heterogeneity of beds. Signs of ash transport f
Externí odkaz:
https://doaj.org/article/c75f6fff95ef42fe94df178426581ed4
Publikováno v:
Estonian Journal of Earth Sciences, Vol 63, Iss 4, Pp 264-270 (2014)
The content of the trace elements Ti, Nb, Zr and Th has been analysed in 34 Upper Ordovician bentonites from the Billegrav-2 drill core, Bornholm, Denmark. The section contains two 80–90 cm thick bentonites, which potentially may represent the Kinn
Externí odkaz:
https://doaj.org/article/99dbc5f41acd431483d78feb9e52387c
Publikováno v:
Estonian Journal of Earth Sciences, Vol 60, Iss 4, Pp 207-219 (2011)
Nine altered volcanic ash samples from the shoal and lagoonal sediments of the Rootsiküla Stage (Wenlock–Ludlow boundary interval, Estonia) were analysed, compared and correlated with five samples of deep sea environments from Latvia. Volcanic ash
Externí odkaz:
https://doaj.org/article/eda870a9fd7e43d6a944ddb08e8e7051
Publikováno v:
Estonian Journal of Earth Sciences, Vol 64, Iss 2, Pp 140-158 (2015)
Twenty-six samples from two major altered volcanic ash beds, Kinnekulle and BII Bentonite of the Kuressaare core section (K-3), Saaremaa Island, were explored to record the geochemical and mineralogical heterogeneity of beds. Signs of ash transport f
Publikováno v:
GFF. 134:273-282
This paper reports on the geochemistry of the mid-Silurian Grotlingbo Bentonite, a ca. 0.1–0.4-m-thick and regionally important bentonite bed in Sweden and the East Baltic area. A series of eight samples, spaced by 5 cm, were taken from the Hunning
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. :312-320
In the Fennoscandian Shield the fluctuations in arid–humid climate conditions are inferred from the Al2O3/TiO2 ratio of the clay fraction of Estonian carbonate rocks of the Baltoscandian sedimentary Basin. The Late Ordovician climate of the Fennosc
Publikováno v:
Estonian Journal of Earth Sciences. 63:264
The content of the trace elements Ti, Nb, Zr and Th has been analysed in 34 Upper Ordovician bentonites from the Billegrav-2 drill core, Bornholm, Denmark. The section contains two 8090 cm thick bentonites, which potentially may represent the Kinne
Publikováno v:
Estonian Journal of Earth Sciences. 63:257
The article deals with grain size distribution of the insoluble residue of Upper Ordovician carbonate rocks of the Baltoscandian Basin in the West Latvian Aizpute-41 core. Great fluctuations in mean grain size in the sections of the Pirgu (uppermost