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  • 1
    Online-Ressource
    Online-Ressource
    Crust-mantle interactions and granitoid diversification : insights from Archaean cratons (2017)
    London : The Geological Society
    Details Verfügbarkeit
    Schlagwort(e): Geology, Stratigraphic Archaean ; Cratons ; Plate tectonics ; Planets ; Mantles ; Planets ; Crust ; Archaean Geologic Period ; Cratons ; Geology, Stratigraphic ; Plate tectonics ; Earth (Planet) ; Earth (Planet) Crust ; Earth (Planet) Mantle ; Electronic book ; Archaikum ; Plattentektonik ; Erdkruste ; Erdmantel ; Granit ; Granitoid ; Geochemie
    Beschreibung / Inhaltsverzeichnis: Archaean granitoids: an overview and significance from a tectonic perspective -- Hafnium isotope constraints on the origin of Mesoarchaean andesites in southern West Greenland, North Atlantic Craton -- The tectonomagmatic significance of Neoarchaean variably alkali-enriched gabbro and diorite intrusions of the western Karelia Province -- Alkaline-rich quartz syenite intrusions of the Western Karelia subprovince -- Geochronology of Neoarchaean granitoids of the NW eastern Dharwar craton: implications for crust formation -- The diversification of granitoids and plate tectonic implications at the Archaean-Proterozoic boundary in the Bundelkhand Craton, Central India -- Petrogenesis of mafic magmatic enclaves of the Bundelkhand granitoids near Orchha, Central Indian shield: evidence for rapid crystallization -- The long (3.7-2.1 Ga) and multistage evolution of the Bug Granulite-Gneiss Complex, Ukrainian Shield, based on the SIMS U-Pb ages and geochemistry of zircons from a single sample -- Geochemical characterization and petrogenesis of mafic granulites from the Central Indian Tectonic Zone (CITZ) -- Metamorphic evolution of the Ilomantsi greenstone belt in the Archaean Karelia Province, eastern Finland.
    Materialart: Online-Ressource
    Seiten: 1 Online-Ressource (vii, 256 Seiten) , Illustrationen, Karten
    ISBN: 9781786202949 , 1786202948
    Serie: Geological Society special publication no. 449
    URL: http://sp.lyellcollection.org/content/449/1
    URL: http://geoscienceworld.org/content/crust-mantle-interactions-and-granitoid-diversification
    URL: http://proxy.library.carleton.ca/login?url=http://sp.lyellcollection.org/content/449/1
    URL: https://geoscienceworld.org/books/book/2031
    URL: http://VH7QX3XE2P.search.serialssolutions.com/?V=1.0&L=VH7QX3XE2P&S=JCs&C=TC0001866879&T=marc&tab=BOOKS
    URL: https://ezproxy.aub.edu.lb/login?url=https://geoscienceworld.org/books/book/2031
    URL: https://sp.lyellcollection.org/content/449/1
    URL: https://doi.org/10.1144/SP449
    DOI: 10.1144/SP449
    DDC: 552/.3
    RVK:
    TK 1300
    Sprache: Englisch
    Anmerkung: Includes bibliographical references and index
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  • 2
    facet.materialart.
    Unbekannt
    Petrology of granitoids from Indus syntaxis, northern Pakistan: Implications for Paleo-Proterozoic A-type magmatism in north-western Indian Plate (2021)
    In:  Geochemistry - Chemie der Erde
    Details
    Publikationsdatum: 2022-07-26
    Beschreibung: The granites are exposed at Dubair and Shang respectively in the north and south of Besham, northern Pakistan. The two exposures are very similar in terms of field features, petrographic details, petrogenetically important geochemical parameters and, more importantly, crystallization temperatures and ages. All this strongly suggests that granites at the two locations are co-genetic and represent two widely separated exposures of the same predominantly un-exposed large intrusion. The Dubair-Shang granites are mostly mega-porphyritic; however evenly fine grained massive and foliated to gneissose varieties also occur at places. The studied samples essentially consist of perthitic feldspar, plagioclase and quartz together with substantial quantities of biotite, minor to accessory amphibole, and accessory to trace amounts of ilmenite, apatite, epidote, titanite and zircon. The amphibole is ferro-edenite and ferro-pargasite while the biotite is markedly Fe-rich and thus approaches annite in composition. The Dubair-Shang granites are per-aluminous, magnesian to ferroan and alkali-calcic to alkalic in composition. Variations in major and trace element contents indicate evolution of the Dubair-Shang intrusion through magmatic differentiation involving early fractionation of amphibole, plagioclase, ilmenite and apatite at 850–890 °C temperature, 6–8 kb pressure and low fO2. The relatively higher amounts of SiO2, Th, U, ΣREE, greater LREE/HREE ratios, and higher negative Eu anomaly, lower average MgO, Fe2O3, CaO, TiO2, P2O5, Nb, Sr, Ba in the Shang than Dubair samples indicate that the exposure at Shang largely represents more evolved part of the intrusion. The chemical details of biotite and calcic amphibole, whole-rock major and trace element contents including both HFSE and LILE, higher ΣREE and general REE patterns and high magma temperature (averg. Zr Tsat = 834 ± 24 °C) all endorse A-type affinity of the granites and suggest their solidification from a largely crust-derived melt emplaced during Paleo-Proterozoic at 20−30 km depth in post-orogenic realm.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 3
    Digitale Medien
    Digitale Medien
    The eigenvalues of the Laplacian on a sphere with boundary conditions specified on a segment of a great circle (1997)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 38 (1997), S. 1623-1649 
    Details
    ISSN: 1089-7658
    Quelle: AIP Digital Archive
    Thema: Mathematik , Physik
    Notizen: We prove that the eigenvalues of the Laplacian on a sphere with a Dirichlet boundary condition specified on a segment of a great circle lie between an integer and a half-integer and for a Neumann boundary condition they lie between a half integer and an integer. These eigenvalues correspond to the eigenvalues of the angular part of the Laplacian with boundary conditions specified on a plane angular sector, which are relevant in the calculation of scattering amplitude. These eigenvalues can also be used to determine the behavior of the fields near the tip of a plane angular sector as a function of the distance to the tip. The first few eigenvalues for both Dirichlet and Neumann boundary conditions are calculated. The same eigenvalues are also calculated using the Wentzel–Kramers–Brillouin (WKB) method. There is excellent agreement between the exact and the WKB eigenvalues. © 1997 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.531820
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  • 4
    Digitale Medien
    Digitale Medien
    Growth and survival of the grouper Epinephelus coioides (Hamilton) at different loading rates in tanks (2000)
    Oxford, UK : Blackwell Science Ltd
    Aquaculture research 31 (2000), S. 0 
    Details
    ISSN: 1365-2109
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: The effect of increasing fish loading (decreasing water exchange rate, while holding fish stocking density constant) on growth, survival and feed conversion ratio was determined for two size groups of the orange-spotted grouper Epinephelus coioides (Hamilton). Fingerlings (124.3–145.8 g initial body weight) and subadults (990.6–1147.1 g initial body weight) were reared in 1-m3 circular tanks for 14 weeks. For the fingerlings experiment, three loading rates of 0.5, 2 and 6 kg L−1 min−1 were used, while in the experiment with subadults, the loading rates were 1, 3 and 6 kg L−1 min−1. The mean growth rate of fingerlings ranged from 1.60 to 2.14 g fish−1 day−1, and survival was high (95–100%); however, there were no significant differences (P 〉 0.05) as a result of the different loading rates. Similar results were obtained in the subadults experiment, in which the growth rate (3.10–4.90 g fish−1 day−1) and survival (86.7–100%) were not significantly (P 〉 0.05) affected by the different loading rates. In both experiments, the feed conversion ratios were also not affected significantly by the loading rates. These results show that water exchange in aerated, flowthrough tanks can be reduced to as low as 6 kg L−1 min−1 without adversely affecting growth, survival and feed conversion of fingerling and subadult groupers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2109.2000.00479.x
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  • 5
    Digitale Medien
    Digitale Medien
    NOD2/CARD15 gene polymorphisms and Crohn's disease in the Chinese population (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 17 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background: Crohn's disease affects people world-wide, but the incidence in Asia is lower than in Western countries. This difference may be due to genetic and/or environmental factors. Three single nucleotide polymorphisms (SNPs) of the NOD2/CARD15 gene have been identified to be independently associated with the development of Crohn's disease in Caucasians. Whether these SNPs are involved in the pathogenesis of Crohn's disease in the Chinese population is unknown.Aim: To determine if NOD2/CARD15 gene polymorphisms are found in Chinese patients with Crohn's disease.Methods: Sixty-five consecutive Chinese Crohn's disease patients had genotyping performed using sequence-specific PCR directed against the wild-type and the Arg702Trp, Gly908Arg and 3020insC variants of the NOD2/CARD15 gene. Controls consisted of 63 patients with ulcerative colitis and 70 patients with dyspepsia.Results: None of the patients with Crohn's disease had heterozygous or homozygous SNP variants. Similarly none of the ulcerative colitis or dyspeptic controls had these SNPs.Conclusion: The three previously described SNPs associated with the development of Crohn's disease in Caucasians are not found in Chinese patients with Crohn's disease.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01607.x
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  • 6
    Digitale Medien
    Digitale Medien
    The genetics of inflammatory bowel disease (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Recent epidemiological, clinical and molecular studies have provided strong evidence that inherited predisposition is important in the pathogenesis of chronic inflammatory bowel diseases. The model most consistent with the epidemiological data suggests that Crohn’s disease and ulcerative colitis are related polygenic diseases, sharing some but not all susceptibility genes. Investigators throughout the world have applied the complementary techniques of genome-wide scanning and candidate gene analysis. Four areas of linkage have been widely replicated on chromosomes 16 (IBD1), 12 (IBD2), 6 (IBD3—the HLA region), and most recently on chromosome 14. Fine mapping of these regions is underway. Of the ‘positional’ candidate genes, most attention has centred on the genes of the major histocompatibility complex. Genes within this region may determine disease susceptibility, behaviour, complications and response to therapy. Hope continues that studies of inflammatory bowel disease genetics will provide fresh insight into disease pathogenesis and soon deliver clinical applications.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.00981.x
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  • 7
    Digitale Medien
    Digitale Medien
    On the formation of 2,3-dihydroxyacetophenone from pentoses or hexuronic acids
    Amsterdam : Elsevier
    Carbohydrate Research 247 (1993), S. 211-215 
    Details
    ISSN: 0008-6215
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0008-6215(93)84253-3
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  • 8
    Digitale Medien
    Digitale Medien
    On the formation of reductic acid from pentoses or hexuronic acids
    Amsterdam : Elsevier
    Carbohydrate Research 247 (1993), S. 217-222 
    Details
    ISSN: 0008-6215
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0008-6215(93)84254-4
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  • 9
    Digitale Medien
    Digitale Medien
    Physical symptoms and illness attributions in agoraphobia and panic
    Amsterdam : Elsevier
    Behaviour Research and Therapy 30 (1992), S. 493-500 
    Details
    ISSN: 0005-7967
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Medizin , Psychologie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-7967(92)90033-D
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  • 10
    Digitale Medien
    Digitale Medien
    High-performance liquid chromatographic determination of phenoxyalkanoic acid herbicides using iron(II) 1,10-phenanthroline as a mobile phase additive
    Amsterdam : Elsevier
    Journal of Chromatography A 481 (1989), S. 439-444 
    Details
    ISSN: 0021-9673
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0021-9673(01)96793-7
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