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苏联铀原料资源

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国外铀金地质 1991年第4期7卷 1-10页

作者： n.p.laverov V.I.Velichkin 李友良

苏联建立铀原料工业的历史与二十世纪最著名的科学家之一——***的名字密不可分。他早在1912年就提出了研究“苏联放射性矿物性质及储量”的必要性。1914—1940年在他倡议下组织了一系列考察队,结果发现并研究了位于中亚的第一个铀矿床。

关键词：铀矿资源矿床预测苏联

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关于火山岩带中热液铀矿床形成时代和成因的同位素控制因素

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国外铀金地质 1993年第2期10卷 108-115页

作者： n.p.laverov I.V.Chernyshev V.n.Golubev 刘小宇核工业北京地质研究院 100029

文章系统阐述了火山岩带中热液铀矿床的形成背景和条件.通过大量同位素数据的分析提出了这类矿床的形成时代和成因。尤其是通过对Strel′tsovskoe矿田中矿石的U-pb同位素研究提出该区海西期花岗岩是主要铀源.这些认识对我国火山岩型铀... 详细信息

文章系统阐述了火山岩带中热液铀矿床的形成背景和条件.通过大量同位素数据的分析提出了这类矿床的形成时代和成因。尤其是通过对Strel′tsovskoe矿田中矿石的U-pb同位素研究提出该区海西期花岗岩是主要铀源.这些认识对我国火山岩型铀矿找矿具有十分重要的借鉴意义。

关键词：铀矿床热液火山岩带成因同位素

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The characteristic pattern of multiple colored layers in coastal stratified lakes in the process of separation from the White Sea

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Journal of Oceanology and Limnology 2018年第6期36卷 1962-1977页

作者： Elena D.KRASnOVA Dmitry n.MATORIn Tatiana A.BELEVICH Ludmila E.EFIMOVA Anastasiia V.KHARCHEVA natalia M.KOKRYATSKAYA Galina n.LOSYUK Daria A.TODOREnKO Dmitry A.VOROnOV Svetlana V.pATSAEVA Biological Faculty of Lomonosov Moscow State University Leninskye Gory 1bld.12Moscow 119234Russia Faculty of Geography Lomonosov Moscow State University GSp-1 Leninskye Gory1Moscow 119991Russia Faculty of physics Lomonosov Moscow State UniversityLeninskye Gory1Moscow 119991Russia n.laverov Federal Center for Integrated Arctic Research Russian Academy of SciencesSevernoj Dviny Emb.23Arkhangelsk 163000Russia A.A.Kharkevich Institute for Information Transmission problems Russian Academy of SciencesBolshoy Karetny Per.19bld.1Moscow 127051Russia A.n.Belozersky Institute of physico-Chemical Biology Lomonosov Moscow State UniversityLeninskye Gory1Bld.40Moscow 119991Russia

An unusual feature of the saline stratified lakes that were formed due to ongoing postglacial uplift on the White Sea coast is the presence of several differently colored thin layers in the zone with sharp gradients. Colored layers in five lakes at various stages of separation from the sea were investigated using optical microscopy, spectrophotometry, spectrofluorimetry, and photobiology. The upper greenish colored layer located in the aerobic strata of all lakes near the compensation depth of 1% light penetration contains green algae. In the chemocline, another layer, brightly green, red or pink, is dominated by mixotrophic flagellates. Despite the very low light intensities and the presence of H 2 S, active photosynthesis by these algae appears to be occurring, as indicated by high values of the maximum quantum yield of primary photochemistry, electron transport activity, photosynthetic activity of photosystem II, the fraction of active centers, and low values of heat dissipation. In the reduced zone of the chemocline, a dense green or brown suspension of anoxygenic phototrophs(green sulfur bacteria) is located.

关键词： algal blooms coastal lakes chemocline fluorescence kinetics Arctic White Sea

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Trapped on the Roof of the World:taxonomic diversity and evolutionary patterns of Tibetan plateau endemic freshwater snails(Gastropoda:Lymnaeidae:Tibetoradix)

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Integrative Zoology 2022年第5期17卷 825-848页

作者： Maxim V.VInARSKI parm Viktor VOn OHEIMB Olga V.AKSEnOVA Mikhail Yu.GOFAROV Alexander V.KOnDAKOV Ivan O.nEKHAEV Ivan n.BOLOTOV Laboratory of Macroecology and Biogeography Saint-Petersburg State UniversitySaint-PetersburgRussia Museum für naturkunde-Leibniz Institute for Evolution and Biodiversity Science BerlinGermany n.laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences ArkhangelskRussia Department of Applied Ecology Saint-Petersburg State UniversitySaint-PetersburgRussia northern(Arctic)Federal University ArkhangelskRussia

The high-elevation Tibetan plateau(western China)is inhabited by a unique,though not particularly species-rich,community of *** explored the species content and evolutionary history of the Tibetan plateau endemic freshwater snail genus *** relationships within the genus were reconstructed based on available sequence *** used a single-rate poisson Tree processes approach for species delimitation and compared putative species-level clades with already described *** found that the genus consists of at least 6 species,of which we described 4 as new to *** and soft body morphology was examined and the radula in Tibetoradix was described for theﬁrst *** on ourﬁndings,the diversiﬁcation of the genus did not result in a prominent morphological differentiation and a number of species can be regarded as morphologically *** species found in different drainage areas indicate relatively good passive dispersal abilities of the *** allopatric distribution of the species could result from competitive exclusion between *** absence of Tibetoradix *** the Tibetan plateau could be explained by a scenario of an“evolutionary trap”,where adaptations to high elevation conditions prevented the taxa from a successful colonization of lower elevations.

关键词： biogeography High Asia molecular phylogenetics morphology species delimitation

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