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ELibrary: Recent submissions
Now showing items 501-520 of 22407
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(2006)Кора выветривания сиенитов развита на субстрате, практически не содержащем кварц. Сиенит разлагается до каолинита с выделением значительного количества свободного глинозема в виде гиббсита. Каолинит не является обязательной ...
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(2006)В статье рассматриваются гипербазитовые массивы, образующие в пределах Южного Урала несколько параллельных поясов. Представленные геохимические данные позволяют интерпретировать породы данных массивов как базальные части ...
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(2006)В настоящей работе на примере канонических структур: складок, линз, разломных сетей демонстрируется одно из важнейших свойств динамических процессов в литосфере: их кооперативность, и, как следствие, наличие дальнего ...
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(2006)Статья посвящена ознакомлению широкого читателя с концепцией и результатами работ в области исторической минерагении, изложенными в первом томе вышедшего в 2005 г. трехтомника [23] и предшествующей ему книге [22]. На основе ...
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(2006)Microbial contributions to the detritus of two vascular plant tissues, smooth cordgrass (Spartina alterniflora) and black mangrove leaves (Avicennia germinans), were estimated over a 4-year decomposition period under ...
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(2006)Satellite measurements cannot provide the appropriate monitoring of space and time geomagnetic secular variations as data from magnetic observatories are not properly taken into account. With the rare regional network of ...
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(2006)Аннотация: Палеомагнитный метод — неотъемлемая часть современных стратиграфических исследований.Данные о магнитной полярности в комплексе с палеонтологическими данными позволяют провести детальное расчленение и сопоставление ...
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(2006)We suggest a model of elastic rebound for the M = 7.3-7.5 Chuya earthquake of 27 September 2003 based on 3D deformation data from the Gorny Altai. We report processed data from yearly resurveyed Altai GPS stations through ...
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(2006)Based on results of studying the geochemistry and gold distribution of groundwaters in the Egor'evskoe gold-bearing area, a mechanism of gold mobilization, migration, and accumulation in mountain-forest landscape is proposed. ...
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(2006)The speciation of carbon in subseafloor hydrothermal systems has direct implications for the maintenance of life in present-day vent ecosystems and possibly the origin of life on early Earth. Carbon monoxide is of particular ...
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(2006)GRA 95209 may provide our best opportunity to date to understand the earliest stages of core formation in asteroidal bodies. This lodranite preserves a physically, chemically, and mineralogically complex set of metal-sulfide ...
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(2006)Comparison of measured far-from-equilibrium dissolution rates of natural glasses and silicate minerals at 25 °C and pH 4 reveals the systematic effects of crystallinity and elemental composition on these rates. Rates for ...
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(2006)The microtexture and mineralogy of a 580-?m-wide melt vein in the Tenham L6 chondrite were investigated using field-emission scanning electron microscopy and transmission electron microscopy to better understand the shock ...
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(2006)Experiments specifically designed to measure the ratio of the diffusivities of ions dissolved in water were used to determine DLi/DK, D7Li/D6Li, D25Mg/D24Mg, D26Mg/D25Mg, and D37Cl/D35Cl. The measured ratio of the diffusion ...
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(2006)The influence of Al(OH)4- on the dissolution rate of quartz at pH 10-13 and 59-89 °C was determined using batch experiments. Al(OH)4- at concentrations below gibbsite solubility depressed the dissolution rate by as much ...
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(2006)Jarosite [KFe3(SO4)2(OH)6] is a mineral that is common in acidic, sulphate-rich environments, such as acid sulphate soils derived from pyrite-bearing sediments, weathering zones of sulphide ore deposits and acid mine or ...
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(2006)Zircon populations of Neoproterozoic and early Paleozoic age occur in metabasites of a high-pressure amphibolite-facies unit of the Austroalpine basement south of the Tauern Window. The host rocks for these zircons are ...
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(2006)In this study we test if calcite shells of the common mussel, Mytilus edulis, contain barium in proportion to the water in which they grew. Similar to all bivalves analyzed to date, the [Ba/Ca]shell profiles are characterized ...
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(2006)A significant uncertainty exists as to whether ?13C values in charcoal meaningfully represent the stable isotopic content of the original material, with studies suggesting variable responses to both natural and laboratory ...
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IRON ISOTOPE FRACTIONATION DURING MICROBIALLY STIMULATED FE(II) OXIDATION AND FE(III) PRECIPITATION (2006)Interpretation of the origins of iron-bearing minerals preserved in modern and ancient rocks based on measured iron isotope ratios depends on our ability to distinguish between biological and non-biological iron isotope ...
Now showing items 501-520 of 22407