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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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    (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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  • 5
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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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  • 6
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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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  • 7
    Electronic Resource
    Electronic Resource
    CdF2:In: A novel material for optically written storage of information (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 31-33 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We demonstrate that semiconducting CdF2 crystals doped with indium is an efficient medium for optical storage of information in static and dynamic regimes. A metastable phototransformation of 1018 cm−3 In centers from a localized deep state to a hydrogenlike shallow state leads to a change of the refractive index Δn of about 10−4 for the probe beam at the wavelength of 500 nm. The diffraction efficiency is temperature dependent due to spontaneous decay of the grating caused by thermal recovery of the In impurity from the metastable hydrogenic state to the localized ground state. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.115482
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  • 8
    Electronic Resource
    Electronic Resource
    Donor impurities and DX centers in the ionic semiconductor CdF2 (1997)
    Springer
    Physics of the solid state 39 (1997), S. 943-947 
    Details
    ISSN: 1063-7834
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Group-III impurities in the wide-gap ionic crystal CdF2 are examined. After being heated in a reducing atmosphere, crystals with these impurities acquire semiconductor properties, which are determined by electrons bound in hydrogen-like orbitals near an impurity. Besides these donor states, nontransition impurities form “deep” states accompanied by strong lattice relaxation, i.e. they are strongly shifted along the configuration coordinate. These states are a complete analog of DX centers in covalent and ionic-covalent semiconductors. The difference of the behavior of nontransition impurities from that of transition and rare-earth impurities is analyzed. This difference is attributed to the character of the filling of their valence shells by electrons. A deep, multilevel analogy is drawn between the properties of deep centers in typical semiconductors with an appreciable fraction of a covalent bond component and in predominantly ionic crystal CdF2 with semiconductor properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.1130113
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  • 9
    Electronic Resource
    Electronic Resource
    Engineering protection of floating pumping plant against wave action (1973)
    Springer
    Power technology and engineering 7 (1973), S. 1055-1057 
    Details
    ISSN: 1570-1468
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Conclusions 1. Operation of the pumping plant in the protected bay for two years has shown the reliable behavior of the bank-protecting and retaining structures. The wind waves do not have any significant effect upon the pumping plant and sediments are not deposited in the intake. Thus, the adopted type of protection is highly effective; it ensures reliable operation of all the structures. 2. In reservoirs with intense bank reshaping, it is convenient to construct the bank-protecting structures not simultaneously with the main structures, but after the bank has been reshaped and a gently sloping bank line has been formed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02383340
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  • 10
    Electronic Resource
    Electronic Resource
    Phase diagram of the system CaF2-GdF3 (1975)
    Springer
    Journal of thermal analysis and calorimetry 8 (1975), S. 239-245 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé L'étude du diagramme de phase du système CaF2-GdF3 par analyse thermique et diffraction des rayons X met en évidence deux larges domaines de solutions solides avec CaF2 et une modification haute température de GdF3 (structure type LaF3). On observe deux maximums sur les solidus des solutions solides Ca1−xGdxF2+x et α-(Gd1−y Ca y )F3−y à 1428 ± 10
    Abstract: Zusammenfassung Das Phasendiagramm des Systems CaF2-GdF3 wurde durch thermische und Röntgenanalyse untersucht. Zwei breite Gebiete von festen Lösungen beruhend aud CaF2 und einer Hochtemperaturmodifikation von α-GdF3 (LaF3 Strukturtyp) sind im System zugegen. Zwei Maxima der Schmelzkurven der festen Lösungen Ca1−xGdxF2+x und α-(Gd1−y Ca y )F3−y wurden bei 1428 ± 10
    Notes: Abstract A phase diagram of the system CaF2-GdF3 was studied by thermal and X-ray analysis. Two wide domains of solid solutions based on CaF2 and a high-temperature modification of α-GdF3 (LaF3-structural type) are present in this system. Two maxima were found on the melting curves of the Ca1−xGdxF2+x and α-(Gd1−yCayF3−y solid solutions, at 1428 ± 10
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01904000
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