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  • PANGAEA
  • Copernicus
  • MDPI Publishing
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  • 1
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    Rocks of the Western Kamchatka-Koryak continental margin volcanogenic belt: age, chemical and mineral compositions
    PANGAEA
    In:  Supplement to: Fedorov, P I; Kovalenko, D V; Ageeva, O A (2011): Western Kamchatka-Koryak continental margin volcanogenic belt: Age, composition, and sources. Translated from Geokhimiya, 2011, 49(8), 813-838, Geochemistry International, 49(8), 768-792, https://doi.org/10.1134/S0016702911060036
    Details
    Publication Date: 2023-05-12
    Description: An isotope-geochemical study of Eocene-Oligocene magmatic rocks from the Western Kamchatka-Koryak volcanogenic belt revealed lateral heterogeneity of mantle magma sources in its segments: Western Kamchatka, Central Koryak, and Northern Koryak ones. In the Western Kamchatka segment magmatic melts were generated from isotopically heterogeneous (depleted and/or insignificantly enriched) mantle sources significantly contaminated by quartz-feldspathic sialic sediments; higher 87Sr/86Sr (0.70429-0.70564) and lower 143Nd/144Nd [eNd(T) = 0.06-2.9] ratios in volcanic rocks from the Central Koryak segment presumably reflect contribution of an enriched mantle source; high positive eNd(T) and low 87Sr/86Sr ratios in magmatic rocks from the Northern Koryak segment area indicate their derivation from an isotopically depleted mantle source without significant contamination by sialic or mantle material enriched in radiogenic Sr and Nd. Significantly different contamination histories of Eocene-Oligocene mantle magmas in Kamchatka and Koryakia are related to their different thermal regimes: higher heat flow beneath Kamchatka led to crustal melting and contamination of mantle suprasubduction magmas by crustal melts. Cessation of suprasubduction volcanism in the Western Kamchatka segment of the continental margin belt was possibly related to accretion of the Achaivayam-Valagin terrane 40 Ma ago, whereas suprasubduction activity in the Koryak segment stopped due to closure of the Ukelayat basin in Oligocene.
    Keywords: Archive of Ocean Data; ARCOD
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 2
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    (Table 3) Sm/Nd and Rb/Sr isotopic ratios in magmatic rocks from the Western Kamchatka-Koryak volcanogenic belt and host terrigenous quartz-feldspathic rocks
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Age, mineral; Akademik M.A. Lavrentiev; Archive of Ocean Data; ARCOD; Chernaya_Mt; Elekai_Mts; Event label; Inductively coupled plasma - mass spectrometry (ICP-MS); Khairyuzova_Cape; Latitude of event; Longitude of event; LV-37; Mass spectrometry; Neodymium; Neodymium-143/Neodymium-144 ratio; Ostrovnoi_Pen; OUTCROP; Outcrop sample; Podkagernaya_Bay; Rarytkin_Rg; Rock type; Rubidium; Rubidium-87/Strontium-86 ratio; Samarium; Samarium-147/Neodymium-144 ratio; Sample, optional label/labor no; Shamanka_Riv_UR; Shamanka_RivM; Strontium; Strontium-87/Strontium-86 ratio; Tevi_Cape; Velnolyk; Western Kamchatka; ε-Neodymium (T)
    Type: Dataset
    Format: text/tab-separated-values, 336 data points
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  • 3
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    (Table 1) K-Ar age determinations for volcanic rocks of the Western Kamchatka-Koryak volcanogenic belt
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Age, mineral; Age, standard deviation; Akademik M.A. Lavrentiev; Archive of Ocean Data; ARCOD; Argon-40; Argon-40, standard deviation; Calculated; Chernaya_Mt; Event label; Flame photometry; Latitude of event; Longitude of event; LV-37; Mass spectrometry; Ostrovnoi_Pen; OUTCROP; Outcrop sample; Potassium; Potassium, standard deviation; Sample, optional label/labor no; Shamanka_Riv_UR; Tevi_Cape; Ust_Khairyuzovo; Velnolyk; Western Kamchatka
    Type: Dataset
    Format: text/tab-separated-values, 91 data points
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  • 4
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    Biomass of the most abundant taxons and phytoplankton groups in the Keret' River estuary (White Sea) in September 2000 (2002)
    PANGAEA
    In:  Supplement to: Dolotov, Yury S; Kovalenko, V N; Lifshits, V Kh; Petrov, M P; Platonov, A V; Prego, Ricardo; Ratkova, Tatyana N; Filatov, N N; Shevchenko, Vladimir P (2002): On the dynamics of water and suspension in the Keret' River estuary (Karelian coast of the White Sea). Translated from Okeanologiya, 2002, 42(5), 765-774, Oceanology, 42(5), 731-740
    Details
    Publication Date: 2023-07-09
    Description: In September 2000 we carried out a comprehensive study of dynamics of water and suspension in the area south of the Chupa Bay adjacent to the Keret' Archipelago and the estuary of the Keret' River (Karelian coast of the White Sea) onboard R/V Ekolog. The entire study area can be divided into three estuary zones characterized by different dynamic regimes: marine, intermediate, and near-mouth zones. Autumn stratification of the water column is particularly distinct in the most dynamic marine zone. The strongest mixing of the upper layer is also observed in the marine zone. The most intensive dilution and the largest thickness of the diluted water layer are found in the near-mouth zone. On the whole in the near-mouth zone concentration of suspended matter is higher than in the intermediate and marine zones. The highest phytoplankton abundance is observed in the marine zone, whereas the lowest one is confined to the near-mouth zone. At all the stations both abundance and biomass of flagellates dominate.
    Keywords: Archive of Ocean Data; ARCOD; Chaetoceros socialis, biomass as carbon, integrated; Choanoflagellates, biomass as carbon, integrated; Chrysomonadina, biomass as carbon, integrated; Depth, bottom/max; Depth, top/min; DEPTH, water; Diatoms, biomass as carbon, integrated; Dinoflagellates, biomass as carbon, integrated; Ek-00-01; Ek-00-05; Ek-00-06; Ek-00-29; Ek-00-B-1; Ek-00-B-2; Euglenophyta, biomass as carbon, integrated; Event label; Flagellates indeterminata, biomass as carbon, integrated; Latitude of event; Longitude of event; Phytoplankton, biomass as carbon, integrated; Picophytoplankton, biomass as carbon, integrated; Prymnesiophyceae, biomass as carbon, integrated; Water sample; White Sea; WS
    Type: Dataset
    Format: text/tab-separated-values, 78 data points
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  • 5
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    (Table 5) Chemical composition of magmatic rocks from the Northern Koryak segment of the Western Kamchatka-Koryak volcanogenic belt (2011)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: Akademik M.A. Lavrentiev; Aluminium oxide; Archive of Ocean Data; ARCOD; Barium; Caesium; Calcium oxide; Cerium; Chromium; Cobalt; Dysprosium; Elekai_Mts; Erbium; Europium; Event label; Gadolinium; Hafnium; Holmium; Inductively coupled plasma - mass spectrometry (ICP-MS); Iron oxide, Fe2O3; Iron oxide, FeO; Lanthanum; Latitude of event; Lead; Longitude of event; Lutetium; LV-37; Magnesium oxide; Manganese oxide; Neodymium; Nickel; Niobium; OUTCROP; Outcrop sample; Phosphorus pentoxide; Potassium oxide; Praseodymium; Rarytkin_Rg; Rubidium; Samarium; Sample, optional label/labor no; Scandium; Silicon dioxide; Sodium oxide; Strontium; Tantalum; Terbium; Thorium; Thulium; Titanium dioxide; Uranium; Vanadium; Western Kamchatka; Wet chemistry; X-ray fluorescence (XRF); Ytterbium; Yttrium; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 382 data points
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  • 6
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    (Table 2) Chemical composition of magmatic rocks from the Western Kamchatka segment of the Western Kamchatka-Koryak volcanogenic belt (2011)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: Akademik M.A. Lavrentiev; Aluminium oxide; Anadyrka_RivM; Archive of Ocean Data; ARCOD; Barium; Beryllium; Caesium; Calcium oxide; Cerium; Chernaya_Mt; Chromium; Cobalt; Dysprosium; Erbium; Europium; Event label; Gadolinium; Hafnium; Holmium; Inductively coupled plasma - mass spectrometry (ICP-MS); Iron oxide, Fe2O3; Khairyuzova_Cape; Lanthanum; Latitude of event; Lead; Lithium; Longitude of event; Lutetium; LV-37; Magnesium oxide; Manganese oxide; Neodymium; Nickel; Niobium; Ostrovnoi_Pen; OUTCROP; Outcrop sample; Phosphorus pentoxide; Podkagernaya_Bay; Potassium oxide; Praseodymium; Rebro_Cape; Rubidium; Samarium; Sample, optional label/labor no; Scandium; Shamanka_GdI; Shamanka_Riv_UR; Silicon dioxide; Sodium oxide; Strontium; Tantalum; Terbium; Tevi_Cape; Thorium; Thulium; Titanium dioxide; Uranium; Ust_Khairyuzovo; Vanadium; Western Kamchatka; Wet chemistry; X-ray fluorescence (XRF); Ytterbium; Yttrium; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 1446 data points
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  • 7
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    (Table 4) Chemical composition of magmatic rocks from the Central Koryak segment of the Western Kamchatka-Koryak volcanic belt (2011)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: Akademik M.A. Lavrentiev; Aluminium oxide; Archive of Ocean Data; ARCOD; Barium; Caesium; Calcium oxide; Cerium; Chromium; Cobalt; Dysprosium; Erbium; Europium; Gadolinium; Hafnium; Holmium; Inductively coupled plasma - mass spectrometry (ICP-MS); Iron oxide, Fe2O3; Iron oxide, FeO; Lanthanum; Lead; Lutetium; LV-37; Magnesium oxide; Manganese oxide; Neodymium; Nickel; Niobium; OUTCROP; Outcrop sample; Phosphorus pentoxide; Potassium oxide; Praseodymium; Rubidium; Samarium; Sample, optional label/labor no; Scandium; Silicon dioxide; Sodium oxide; Strontium; Tantalum; Terbium; Thorium; Thulium; Titanium dioxide; Uranium; Vanadium; Velnolyk; Western Kamchatka; Wet chemistry; X-ray fluorescence (XRF); Ytterbium; Yttrium; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 391 data points
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  • 8
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    Materials, Vol. 4, Pages 651-702: Magnetoelectric Interactions in Lead-Based and Lead-Free Composites (2011)
    MDPI Publishing
    In: Materials
    Details
    Publication Date: 2011-07-21
    Description: Magnetoelectric (ME) composites that simultaneously exhibit ferroelectricity and ferromagnetism have recently gained significant attention as evident by the increasing number of publications. These research activities are direct results of the fact that multiferroic magnetoelectrics offer significant technological promise for multiple devices. Appropriate choice of phases with co-firing capability, magnetostriction and piezoelectric coefficient, such as Ni-PZT and NZFO-PZT, has resulted in fabrication of prototype components that promise transition. In this manuscript, we report the properties of Ni-PZT and NZFO-PZT composites in terms of ME voltage coefficients as a function of frequency and magnetic DC bias. In order to overcome the problem of toxicity of lead, we have conducted experiments with Pb-free piezoelectric compositions. Results are presented on the magnetoelectric performance of Ni-NKN, Ni-NBTBT and NZFO-NKN, NZFO-NBTBT systems illustrating their importance as an environmentally friendly alternative.
    Electronic ISSN: 1996-1944
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by MDPI Publishing
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  • 9
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    IJERPH, Vol. 15, Pages 1320: Risk Factors for Ventricular Septal Defects in Murmansk County, Russia: A Registry-Based Study (2018)
    MDPI Publishing
    Details
    Publication Date: 2018-06-25
    Description: IJERPH, Vol. 15, Pages 1320: Risk Factors for Ventricular Septal Defects in Murmansk County, Russia: A Registry-Based Study International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15071320 Authors: Anton A. Kovalenko Erik Eik Anda Jon Øyvind Odland Evert Nieboer Tormod Brenn Alexandra Krettek Cardiovascular malformations are one of the most common birth defects among newborns and constitute a leading cause of perinatal and infant mortality. Although some risk factors are recognized, the causes of cardiovascular malformations (CVMs) remain largely unknown. In this study, we aim to identify risk factors for ventricular septal defects (VSDs) in Northwest Russia. The study population included singleton births registered in the Murmansk County Birth Registry (MCBR) between 1 January 2006 and 31 December 2011. Infants with a diagnosis of VSD in the MCBR and/or in the Murmansk Regional Congenital Defects Registry (up to two years post-delivery) constituted the study sample. Among the 52,253 infants born during the study period there were 744 cases of septal heart defects (SHDs), which corresponds to a prevalence of 14.2 [95% confidence interval (CI) of 13.2–15.3] per 1000 infants. Logistic regression analyses were carried out to identify VSD risk factors. Increased risk of VSDs was observed among infants born to mothers who abused alcohol [OR = 4.83; 95% CI 1.88–12.41], or smoked during pregnancy [OR = 1.35; 95% CI 1.02–1.80]. Maternal diabetes mellitus was also a significant risk factor [OR = 8.72; 95% CI 3.16–24.07], while maternal age, body mass index, folic acid and multivitamin intake were not associated with increased risk. Overall risks of VSDs for male babies were lower [OR = 0.67; 95% CI 0.52–0.88].
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI Publishing
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  • 10
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    An opportunity of application of excess factor in hydrology (2012)
    Copernicus
    Details
    Publication Date: 2012-12-11
    Description: In last few years in hydrology an interest to excess factor has appeared as a reaction to unsuccessful attempts to simulate and predict evolving hydrological processes, which attributive property is statistical instability. The article shows, that the latter has a place at strong relative multiplicative noises of probabilistic stochastic model of a river flow formation, phenomenological display of which are "the thick tails" and polymodality, for which the excess factor "answers", by being ignored by a modern hydrology in connection to the large error of its calculation because of insufficient duration of lines of observation over a flow. However, it is found out, that the duration of observation of several decades practically stabilizes variability of the excess factor, the error of which definition appears commensurable with an error of other calculated characteristics used in engineering hydrology.
    Print ISSN: 1812-2108
    Electronic ISSN: 1812-2116
    Topics: Geography , Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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