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151.
152.
Luis Martinez Joëlle Duplay Isabel Suarez-Ruiz Jean Robert Disnar Geneviève Farjanel Philippe Larqué Nicole Liewig 《Comptes Rendus Geoscience》2002,334(14):1021-1028
Two wells, Balazuc (BA1) and Morte-Mérie (MM1), located in a confined area (1200 m apart) and separated by the Uzer fault (a Liassic structure with a dip fault of 1300 m) were analysed using conventional methodologies and techniques (PRV, TAI, XRD, STEM) in order to compare the diagenetic evolution of clays and organic matter. The thermal convective process allows the circulation of hot fluids and the oxidation of organic matter. The conductive process allows the maturation of the organic matter, the expulsion of hydrocarbons and the deposit of pyrobitumes in the migration channels. To cite this article: L. Martinez et al., C. R. Geoscience 334 (2002) 1021–1028. 相似文献
153.
The presence of pathogenic bacteria in water, along with the factors that act upon them, constitutes a field that has been little investigated in natural environments. It is clear, however, that these pathogens do have a significant effect on the quality of drinking water. Selected bacteria such as Salmonella, Campylobacter, Yersinia, and Listeria were searched for in groundwaters of mainly mountainous regions. Waters of one or two brooks in the catchment area of each spring were also analysed. Our results show that Campylo bacter and Listeria are frequent in all of these waters, even when land use in the catchment area is extensive (mountain pastures). Salmonella, on the other hand, was never found. Factors influencing the presence of Campylobacter, Yersinia, and Listeria were tested using Spearman rank correlations. The results suggest that the presence in water of some species of these bacteria (C. jejuni, L. monocytogenes 4b, and L. ivanovii) is related to a contaminant input, i.e. to the presence of cattle in the catchment area. For other species (C. coli, L. monocytogenes 1/2a, and Yersinia enterocolitica), however, one is forced to admit that no such connection between the presence of these species and that of an identified, potential contaminant input exists. We are therefore obliged to conclude either that these bacteria multiply in a natural way in the environment, or that they are able to survive in it for a long time. Finally, the present study shows that pathogenic bacteria are not always accompanied by indicators of faecal contamination (Escherichia coli, entero cocci); for this reason, they could potentially pose a risk to public health. 相似文献
154.
David Williamson Mike Jackson Subir K. Banerjee Nicole Petit-Maire 《Geophysical Journal International》2004,157(3):1090-1104
155.
The utopia of the binational city 总被引:1,自引:0,他引:1
Nicole Ehlers 《GeoJournal》2001,54(1):21-32
Kerkrade and Herzogenrath, on the German-Dutch border, look back at a common past in the former Land of Rode. This ceased
to exist in 1815 when the border was drawn between Prussia and The Netherlands. Since then the people turned their backs to
each other more and more and started orientating towards their own nation state. Only after the dramatic nationalism of World
War II subsided, did the border loose some of its dividing effects on political and social life. Unification processes of
the European Union strengthened this, and the rapprochement between Kerkrade and Herzogenrath has become so intensive that
they present themselves as one town: Eurode. The identification of both towns as one territorial, institutional and social
entity was and is essential for the success of Eurode. Yet, creating a feeling of 'we-ness' is not enough if the actions and
thoughts of the inhabitants do not match this feeling. This article therefore deals with the different stages of cross border
integration necessary before one can speak of a 'binational city'. The question remains open however, whether the binational
city can ever be more than Utopia.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
156.
Vadim Kamenetsky Nicole Métrich Raffaello Cioni 《Contributions to Mineralogy and Petrology》1995,121(3):336-336
The online version of the original article can be found at 相似文献
157.
Corey A Cohn Steffen Mueller Eckard Wimmer Nicole Leifer Steven Greenbaum Daniel R Strongin Martin AA Schoonen 《Geochemical transactions》2006,7(1):3-11
Background
Pyrite, the most abundant metal sulphide on Earth, is known to spontaneously form hydrogen peroxide when exposed to water. In this study the hypothesis that pyrite-induced hydrogen peroxide is transformed to hydroxyl radicals is tested. 相似文献158.
Has the notion of ‘sea change’ and its considerable implications for non-metropolitan coastal Australia been exaggerated? In this article alternative perspectives of ‘sea change’ in Australia are reviewed, and the policy implications of each assessed. One perspective regards migration to coastal areas beyond the capital cities as incidental to continued metropolitan primacy and unlikely to affect or change Australia's overall urban or economic structure. The other considers the movement as a significant and enduring process with major environmental and socio-economic repercussions. With reference to research conducted for the National Sea Change Taskforce, the article finds partial support for both positions, leading to a more revealing understanding of ‘sea change’ in Australia. A set of policy responses, sensitive to the particular qualities of Australian coastal environments and communities, are proposed for consideration by all three tiers of government. 相似文献
159.
Erwan Brisson Matthias Demuzere Patrick Willems Nicole P. M. van Lipzig 《Climate Dynamics》2015,44(1-2):495-508
160.
Christian Zeeden Ulrich Hambach Nicole Klasen Peter Fischer Philipp Schulte Janina J. Nett Daniel Veres Igor Obreht Wei Chu Maria Papadopoulou Finn Viehberg Frank SchÄBitz Milivoj B. Gavrilov Slobodan B. MarkoviĆ Andreas VÖTT Frank Lehmkuhl 《第四纪科学杂志》2021,36(8):1414-1425
The Upper Pleistocene geoarchives in the south-eastern Carpathian Basin are represented predominantly by loess–palaeosol records. In 2015, a 10 m sediment core composed of clay-rich lacustrine sediments was recovered by vibracoring a dry lake basin located between the Vršac Mountains (Serbia) and the Banat Sands in the south-eastern Carpathian Basin; a location relevant for placing regional archaeological results in a palaeoenvironmental context. Here, we present results from geoelectrical prospection and a lithostratigraphic interpretation of this sequence supported by a detailed granulometric study supplemented by ostracod analysis. An age model based on luminescence dating is discussed against sedimentological proxy data and its implication for palaeoenvironmental change. The cores show a stratigraphy of lighter ochre-coloured and darker greyish sediment, related to the deposition of clay and silt trapped in an aquatic environment. Geophysical measurements show ~20 m thick lacustrine sediments. The grain-size distributions including the variability in fine clay are indicative of a lacustrine environment. Fine particles were brought into the depositional environments by aquatic input and settled from suspension; also, direct dust input is constrained by grain-size results. Riverine input and aeolian dust input interplayed at the locality. 相似文献