Zobrazeno 1 - 10
of 24
pro vyhledávání: '"S. B. Felitsyn"'
Publikováno v:
Paleontological Journal. 55:447-454
The discovery of numerous bacterial remains (including those morphologically similar to modern ironbacteria) in the lower Proterozoic red-colored quartzites of Shoksha, Karelia, and Bolshoy Tyuters Island of the Gulf of Finland, indicates a significa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce154b031a42e0faf4db10d98c1aa9ef
https://doi.org/10.1134/s003103012104002x
https://doi.org/10.1134/s003103012104002x
Autor:
N. A. Alfimova, S. B. Felitsyn
Publikováno v:
Paleontological Journal. 53:757-765
The Fe/Co ratio (ppm) in the kerogen from different-aged clastic sediments (Early Proterozoic–Mesozoic) varies from 17 to 4100, and δ13C value varies from –14.8 to –32.6‰. The relationship between Fe/Co and δ13C is determined by the composi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4402afc00c7648030f52184beed7df2
https://doi.org/10.1134/s0031030119070037
https://doi.org/10.1134/s0031030119070037
Autor:
Pritam Nasipuri, Vjacheslav A. Matrenichev, V. Kumar, Mohd Baqar Raza, N. A. Alfimova, Jayanta Kumar Pati, E. S. Bogomolov, S. B. Felitsyn, L. Saha
Publikováno v:
Precambrian Research. 328:1-8
In this communication, we report geochemical and Sm-Nd isotope data of Banded Iron Formation (BIF) from Kola-Karelia (Fennoscandian shield), East-European Platform and Bundelkhand craton, N-E India. The BIFs from Kola-Karelia (Algoma type), and Bunde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f89de1f7775e57ad58dd8a39600a7cf
https://doi.org/10.1016/j.precamres.2019.04.008
https://doi.org/10.1016/j.precamres.2019.04.008
Publikováno v:
Paleontological Journal. 51:430-440
Probable microfossils, presumably of bacterial origin, were found in the banded iron formations of Karelia and the Kola Peninsula. The age of these formations is 2.7–2.8 Ga. Based on the organic carbon content and balance estimations it was establi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fbfe135f724fe73d20c140c26281122
https://doi.org/10.1134/s0031030117040037
https://doi.org/10.1134/s0031030117040037
Autor:
E. S. Bogomolov, S. B. Felitsyn
Publikováno v:
Lithology and Mineral Resources. 51:107-116
Spectra of the REE distribution in the Quaternary–Recent peat bog ore of southern Karelia and Leningrad region are characterized by LaN/YbN < 1.0, presence of positive Eu and negative Ce anomalies, and higher Y enrichment (relative to Ho and Dy) be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54ee0c8d699f4283dd1c19012b5d5108
https://doi.org/10.1134/s0024490216020036
https://doi.org/10.1134/s0024490216020036
Isotope composition of neodymium in neo-Archean banded iron formations of Karelia and Kola Peninsula
Publikováno v:
Doklady Earth Sciences. 465:1268-1271
Studies of three deposits of neo-Archean banded iron formations from the West Karelian domain (the Kostomuksha deposit) and from the Central Kola block (the Olenegorsk and Kirovogorsk deposits) showed a pronounced difference in the isotope compositio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::999aa9bece9048c0b659f2dd54f9d31f
https://doi.org/10.1134/s1028334x15120119
https://doi.org/10.1134/s1028334x15120119
Autor:
T. N. German, S. B. Felitsyn
Publikováno v:
Paleontological Journal. 49:221-229
Study of carbon isotopic composition of micro- and macrofossils and dissipated sedimentary matter (kerogens) extracted by acid maceration from the clay shales from three Riphean, Vendian, and Cambrian sections of the Siberian and East European platfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::872bd991d62fe0a634c3451362d4bf1f
https://doi.org/10.1134/s0031030115030053
https://doi.org/10.1134/s0031030115030053
Publikováno v:
Doklady Biological Sciences. 470:231-233
Fossilized cyanobacteria(?) represented by trichomes enclosed in common sheaths were detected in early Proterozoic iron banded formations of the Kursk magnetic anomaly (limonite-martite ores of the Lebedinsky mine and iron banded formations of the Ko
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::885795f1b9e3dc76f40f9ff2eafe950c
https://doi.org/10.1134/s0012496616050070
https://doi.org/10.1134/s0012496616050070
Autor:
S. B. Felitsyn, N. A. Alfimova
Publikováno v:
Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections. 474(1)
Microelement composition of Gallionella sp.-containing bacterial mats from the environs of St. Petersburg and isotope composition of organic carbon, strontium, and neodymium from these mats have been determined. Isotope and microelement systematics o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70d8799bd5162deec975c5c89edda696
https://pubmed.ncbi.nlm.nih.gov/28702733
https://pubmed.ncbi.nlm.nih.gov/28702733
Publikováno v:
Lithology and Mineral Resources. 46:397-408
The absence of Ce anomaly and significant positive correlation between Ce and Fe in the weathering profiles and sedimentary carbonate rocks of the Baltic Shield with an age of 2.8–2.1 Ga indicate that Fe3+ was the main form of Fe migration in the A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310c6a4a4b82d73146f058f33e783633
https://doi.org/10.1134/s0024490211050026
https://doi.org/10.1134/s0024490211050026