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  • 1
    Online Resource
    Online Resource
    Subduction Dynamics : From Mantle Flow to Mega Disasters. (2015)
    Newark :American Geophysical Union,
    Details
    Keywords: Subduction zones. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (396 pages)
    Edition: 1st ed.
    ISBN: 9781118888995
    Series Statement: Geophysical Monograph Series ; v.211
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=4039563
    DDC: 551.1/36
    Language: English
    Note: Intro -- Title Page -- Table of Contents -- CONTRIBUTORS -- INTRODUCTION: The Impact of Subduction Dynamics on Mantle Flow, Continental Tectonics, and Seismic Hazard -- REFERENCES -- 1 Evidence from Caustic Waveform Modeling for Long Slab Thickening above the 660-km Discontinuity under Northeast Asia: Dynamic Implications -- 1.1. INTRODUCTION -- 1.2. CAUSTIC WAVEFORM MODELING AND DATA SOURCES -- 1.3. SLAB IMAGE IN THE MANTLE TRANSITION ZONE -- 1.4. UNCERTAINTY ESTIMATES OF THICKNESS OF SLAB -- 1.5. DYNAMIC SIMULATION OF SLAB THICKENING -- 1.6. DISCUSSION AND DYNAMIC IMPLICATION -- 1.7. CONCLUSIONS -- ACKNOWLEDGMENT -- REFERENCES -- 2 The Continental Collision Process Deduced from the Metamorphic Pattern in the Dabie-Hongseong and Himalayan Collision Belts -- 2.1. INTRODUCTION -- 2.2. METAMORPHIC EVOLUTION ALONG THE DABIE-HONGSEONG COLLISION BELT IN NORTHEAST ASIA -- 2.3. THE DABIE-SULU COLLISION BELT BETWEEN THE NCB AND SCB IN CHINA -- 2.4. THE EXTENSION OF THE DABIE-SULU BELT IN CHINA INTO THE HONGSEONG AREA IN KOREA -- 2.5. THE LATE-PERMIAN TO TRIASSIC COLLISION BELT IN KOREA -- 2.6. THE EXTENSION OF THE DABIE-HONGSEONG COLLISION BELT INTO JAPAN AND NORTH KOREA -- 2.7. THE METAMORPHIC TREND ALONG THE DABIE-HONGSEONG COLLISION BELT -- 2.8. METAMORPHIC EVOLUTION ALONG THE HIMALAYAN COLLISION BELT -- 2.9. THE METAMORPHISM IN THE WESTERN HIMALAYAN COLLISION BELT -- 2.10. THE METAMORPHISM IN THE MIDEASTERN HIMALAYAN COLLISION BELT -- 2.11. THE METAMORPHISM IN THE EASTERN HIMALAYAN COLLISION BELT -- 2.12. THE METAMORPHIC PATTERN ALONG THE HIMALAYA COLLISION BELT -- 2.13. DISCUSSION AND TECTONIC IMPLICATION -- ACKNOWLEDGMENT -- REFERENCES -- 3 A New Tectonic Model for the Genesis of Adakitic Arc Magmatism in Cretaceous East Asia -- 3.1. INTRODUCTION -- 3.2. NUMERICAL MODELSs -- 3.3. RESULTS -- 3.4. DISCUSSION -- 3.5. CONCLUDING REMARKS. , ACKNOWLEDGMENT -- REFERENCES -- 4 Incoming Plate Variations along the Northern Manila Trench: Implications for Seafloor Morphology and Seismicity -- 4.1. INTRODUCTION -- 4.2. GEOLOGICAL FRAMEWORK -- 4.3. INCOMING PLATE VARIATION -- 4.4. DISCUSSION -- 4.5. CONCLUSION -- ACKNOWLEDGMENT -- REFERENCES -- 5 Source of the Cenozoic Volcanism in Central Asia -- 5.1. INTRODUCTION -- 5.2. PETROLOGICAL SETTING -- 5.3. BUOYANCY DRIVEN VISCOUS INSTABILITIES -- 5.4. NUMERICAL SIMULATIONS -- 5.5. MODEL RESULTS -- 5.6. DISCUSSION -- 5.7. CONCLUSIONS -- ACKNOWLEDGMENT -- BIBLIOGRAPHY -- 6 Influence of Variable Thermal Expansivity and Conductivity on Deep Subduction -- 6.1. INTRODUCTION -- 6.2. METHOD AND MODEL -- 6.3. RESULTS -- 6.4. DISCUSSION AND CONCLUSIONS -- ACKNOWLEDGMENT -- REFERENCES -- 7 Slab-driven Mantle Weakening and Rapid Mantle Flow -- 7.1. INTRODUCTION -- 7.2. METHODS -- 7.3. RESULTS -- 7.4. DISCUSSION -- 7.5. CONCLUSIONS -- ACKNOWLEDGMENT -- REFERENCES -- 8 Influence on Earthquake Distributions in Slabs from Bimaterial Shear Heating -- 8.1. INTRODUCTION -- 8.2. NUMERICAL METHOD AND MODEL SETTINGS -- 8.3. RESULTS -- 8.4. DISCUSSION -- 8.5. CONCLUSIONS -- ACKNOWLEDGMENT -- REFERENCES -- 9 The Seismology of the Planet Mongo: The 2015 Ionospheric Seismology Review -- 9.1. ORIGINS -- 9.2. IONOSPHERIC SEISMOMETERS -- 9.3. THE GPS REVOLUTION: FROM POINT MEASUREMENTS TO IMAGES -- 9.4. THE GREAT SUMATRA TSUNAMI IN THE IONOSPHERE -- 9.5. THE TOHOKU EARTHQUAKE AND TSUNAMI -- 9.6. PHYSICAL PROPERTIES OF AWRayleigh, IGWtsuna, AND AGWepi -- 9.7. CONCLUSION -- ACKNOWLEDGMENT -- REFERENCES -- 10 Why We Need a New Paradigm of Earthquake Occurrence -- 10.1. INTRODUCTION -- 10.2. MODELS OF EARTHQUAKES -- 10.3. THE CHARACTERISTIC EARTHQUAKE MODEL -- 10.4. UNCHARACTERISTIC EARTHQUAKES -- 10.5. THE PSHA APPROACH TO EARTHQUAKE-HAZARD MODELING. , 10.6. PROBABILISTIC FORECASTS OF INDIVIDUAL EARTHQUAKES -- 10.7. CONCLUSION -- REFERENCES -- Index -- End User License Agreement.
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  • 2
    Online Resource
    Online Resource
    Subduction dynamics : from mantle flow to mega disasters (2016)
    Washington, D.C : American Geophysical Union
    Details Availability
    Keywords: Subduction zones
    Type of Medium: Online Resource
    Pages: Online-Ressource
    Edition: Online-Ausg.
    Series Statement: Geophysical monograph 211
    URL: http://site.ebrary.com/lib/alltitles/docDetail.action?docID=11113086
    URL: https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=1067281
    URL: http://onlinelibrary.wiley.com/book/10.1002/9781118888865
    Language: English
    Note: Includes bibliographical references and index
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  • 3
    Electronic Resource
    Electronic Resource
    Contact chemical shifts for the hydrogen atoms of nickel complexes of aromatic amines. Spin density distributions in naphthalene and anthracene derivatives. Spin density transmission through carbon, nitrogen, oxygen, and sulfur atoms (1978)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 82 (1978), S. 1175-1180 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100499a019
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  • 4
    Electronic Resource
    Electronic Resource
    Models of convection-driven tectonic plates: a comparison of methods and results (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 109 (1992), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Recent numerical studies of convection in the Earth's mantle have included various features of plate tectonics. A number of different methods for modelling ‘plate-like’ behaviour have been used. The differences in the methods of modelling plates may assume or predict significantly different plate deformation. We describe three methods of modelling plates through: material properties, force balance, and a thin power-law sheet approximation. We compare the results obtained using each method on a series of simple calculations. From these results we are able to develop scaling relations between the different parametrizations. While each method produces different degrees of deformation within the surface plate, the surface heat flux and average plate velocity agree to within a few per cent. The main results are not dependent upon the plate modelling method and therefore are representative of the physical system we set out to model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1992.tb00111.x
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  • 5
    Electronic Resource
    Electronic Resource
    Radial models of mantle viscosity: results from a genetic algorithm (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 122 (1995), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The long-wavelength component of the geoid has been used to constrain radial variations in mantle viscosity using 3-D velocity anomaly models determined from seismic tomography as the buoyancy forces driving viscous flow. Using a Genetic Algorithm (GA), the robustness of mantle viscosity models obtained by calculus-based optimization methods is investigated. GAS are a relatively new class of optimization techniques, which are generating a growing interest in the geophysics community. These methods can be particularly useful for solving highly non-linear optimization problems. Unlike traditional techniques, GAS do not require derivative information to form a Jacobian matrix or sensitivity kernels. Models are constructed from pieces of successful models following a simple set of rules. These simple rules are driven by stochastic, rather than deterministic, means. Because of the efficiency of the GA for the mantle viscosity problem, it is possible to explore a greater range of potential solutions than with a traditional optimization method. It is found that, while both calculus-based and GA optimization methods find viscosity models with a low-viscosity transition zone, the GA finds another class of models, with a high viscosity in the transition zone, that also satisfies the geoid data. The geoid alone is unable to resolve low-viscosity transition-zone models from high-viscosity transition-zone models. The effect of the scaling between seismic velocity and density on the preferred viscosity model is also explored. While a velocity-to-density scaling with a pronounced increase in the transition zone provides the best fit to the geoid, the preferred vertical viscosity profile is insensitive to the velocity-to-density scaling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1995.tb06831.x
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  • 6
    Electronic Resource
    Electronic Resource
    Urbanization and exotic plants in northern Sydney streams (2000)
    Melbourne, Australia : Blackwell Science Pty
    Austral ecology 25 (2000), S. 0 
    Details
    ISSN: 1442-9993
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The vegetation and sediment of urban and non-urban streams in the northern Sydney region were compared to examine the possible effects of urbanization on within-stream vegetation. Many sediment characteristics were significantly different in urban streams. At least one exotic plant species was found in each urban stream sampled, but none were found in the non-urban streams. The presence of exotic species led to the overall number and abundance of plant species being significantly higher in urban streams. Interestingly, the number and abundance of native species at the urban sites were the same as non-urban sites, but a different suite of species was usually present. This suggests that urban streams favour exotic plants and certain native plants that are adapted to the modified conditions. The differences between the plant communities in the urban and non-urban streams appeared to be associated with the increased level of nutrients in the urban stream sediment. Several multivariate techniques were used to assess the relative importance of individual nutrients, but no nutrients were directly associated with the observed differences. In particular, total phosphorus levels were less important in explaining the vegetation patterns than a combination of nutrients. It is therefore likely that the general increase of nutrients in stream sediment has enhanced exotic invasion and altered stream plant communities in Sydney streams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-9993.2000.01085.x
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  • 7
    Electronic Resource
    Electronic Resource
    Invasion of exotic plants in nutrient-enriched urban bushland (2002)
    Oxford, UK : Blackwell Science Pty
    Austral ecology 27 (2002), S. 0 
    Details
    ISSN: 1442-9993
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract  Invasion of exotic plants into vegetation communities on low-nutrient soils in Sydney is often attributed to increased phosphorus in the soil. However, the composition of native vegetation in nearby national parks has been found to be more closely correlated to combinations of soil nutrients and other environmental variables than phosphorus alone. This study examined whether phosphorus or a range of variables better matched patterns of native and exotic plants in urban bushland. Sites in urban bushland and national parks were sampled, vegetation frequency recorded and soil samples collected. Soil samples were analysed for a range of chemical and physical attributes. A significantly greater number of exotic species were found at the urban sites, and significantly fewer native species than in the national parks. All measured soil nutrients were found to be of a significantly increased concentration in urban soil. Using regression analysis, an index of all measured soil nutrients was found to explain more of the variation in the percentage of exotic species at a site than phosphorus alone. Multivariate analysis showed a gradient of sites from minimal exotic invasion to heavy invasion. However, this gradient also corresponded to changes in native species. The gradient was found to match that of increasing soil nutrient levels. A combination of soil nutrients was found to correlate better with the multivariate species composition than was phosphorus alone. The results suggest that it is the increase of many soil nutrients, not phosphorus alone, that is contributing to the invasion of urban bushland by exotic plants and the alteration of the suite of native species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-9993.2002.01220.x
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  • 8
    Electronic Resource
    Electronic Resource
    Falling stock (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 390-390 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR Nature has decided to apply one of its news pages to a biotechnology stock report (Nature 12 August, p.599). As a financial analyst who specializes in biotechnology, I must question the need for printing information such as this in a professional journal of science. It would be rather like a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/299390b0
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  • 9
    Electronic Resource
    Electronic Resource
    Seeing the mantle in the round (1993)
    [s.l.] : Nature Publishing Group
    Nature 361 (1993), S. 688-689 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CAN material be transported between the upper and lower mantle? This ques-tion has exercised geochemists and geo-physicists for years; without knowing the answer, they cannot infer the Earth's thermal and chemical history. But the computational task is immense. The properties of the mantle must be ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/361688a0
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  • 10
    Electronic Resource
    Electronic Resource
    Book review (1990)
    Springer
    Pure and applied geophysics 132 (1990), S. 811-824 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876822
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