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  • 1
    Monograph available for loan
    Monograph available for loan
    London : The Geological Society
    Associated volumes
    Call number: 9/M 99.0386 ; AWI G5-00-0204
    In: Geological Society special publication
    Description / Table of Contents: This book contains a co-ordinated series of papers considering how chemical changes in sediments, as they accumulate and lithify, affect their magnetization and how such changes can be monitored by studying their magnetic properties. It is especially relevant to sedimentologists, particularly those in exploration for hydrocarbons and sediment-hosted metals, as well as for geophysicists using the magnetization of sediments.
    Type of Medium: Monograph available for loan
    Pages: 214 S. , Ill., graph. Darst.
    ISBN: 1862390282
    Series Statement: Geological Society special publication 151
    Classification:
    Geomagnetism, Geoelectromagnetism
    Note: D. H. Tarling: Introduction: sediments and diagenesis / Geological Society, London, Special Publications, 151:1-8, doi:10.1144/GSL.SP.1999.151.01.21 --- C. M. Batt: Preliminary investigations into the acquisition of remanence in archaeological sediments / Geological Society, London, Special Publications, 151:9-19, doi:10.1144/GSL.SP.1999.151.01.02 --- S. A. Pisarevsky: Studies of post-depositional remanent magnetization and their relevance to the palaeomagnetic record / Geological Society, London, Special Publications, 151:21-26, doi:10.1144/GSL.SP.1999.151.01.03 --- Graham J. Borradaile: Viscous remanent magnetization of high thermal stability in limestone / Geological Society, London, Special Publications, 151:27-42, doi:10.1144/GSL.SP.1999.151.01.04 --- Barbara A. Maher and Mark W. Hounslow: The significance of magnetotactic bacteria for the palaeomagnetic and rock magnetic record of Quaternary sediments and soils / Geological Society, London, Special Publications, 151:43-46, doi:10.1144/GSL.SP.1999.151.01.05 --- Shmuel Marco, Hagai Ron, Michael O. McWilliams, and Mordechai Stein: The locking-in of remanence in upper Pleistocene sediments of Lake Lisan (palaeo Dead Sea) / Geological Society, London, Special Publications, 151:47-52, doi:10.1144/GSL.SP.1999.151.01.06 --- J. Dinarès-Turell and M. J. Dekkers: Diagenesis and remanence acquisition in the Lower Pliocene Trubi marls at Punta di Maiata (southern Sicily): palaeomagnetic and rock magnetic observations / Geological Society, London, Special Publications, 151:53-69, doi:10.1144/GSL.SP.1999.151.01.07 --- L. Vigliotti, L. Capotondi, and M. Torii: Magnetic properties of sediments deposited in suboxic-anoxic environments: relationships with biological and geochemical proxies / Geological Society, London, Special Publications, 151:71-83, doi:10.1144/GSL.SP.1999.151.01.08 --- Michael Urbat, Mark J. Dekkers, and Simon P. Vriend: The isolation of diagenetic groups in marine sediments using fuzzy c-means cluster analyses / Geological Society, London, Special Publications, 151:85-93, doi:10.1144/GSL.SP.1999.151.01.09 --- Gary S. Wilson and Andrew P. Roberts: Diagenesis of magnetic mineral assemblages in multiply redeposited siliciclastic marine sediments, Wanganui basin, New Zealand / Geological Society, London, Special Publications, 151:95-108, doi:10.1144/GSL.SP.1999.151.01.10 --- P. Turner, P. Chandler, D. Ellis, G. P. Leveille, and M. L. Heywood: Remanence acquisition and magnetostratigraphy of the Leman Sandstone Formation: Jupiter Fields, southern North Sea / Geological Society, London, Special Publications, 151:109-124, doi:10.1144/GSL.SP.1999.151.01.11 --- E. A. Hailwood, D. Bowen, F. Ding, P. W. M. Corbett, and P. Whattler: Characterizing pore fabrics in sediments by anisotropy of magnetic susceptibility analyses / Geological Society, London, Special Publications, 151:125-126, doi:10.1144/GSL.SP.1999.151.01.12 --- F. Hrouda and J. Ježek: Magnetic anisotropy indications of deformations associated with diagenesis / Geological Society, London, Special Publications, 151:127-137, doi:10.1144/GSL.SP.1999.151.01.13 --- Graham J. Borradaile, Philip W. Fralick, and France Lagroix: Acquisition of anhysteretic remanence and tensor subtraction from AMS isolates true palaeocurrent grain alignments / Geological Society, London, Special Publications, 151:139-145, doi:10.1144/GSL.SP.1999.151.01.14 --- B. D’Argenio, V. Ferreri, M. Iorio, A. Raspini, and D. H. Tarling: Diagenesis and remanence acquisition in the Cretaceous carbonate sediments of Monte Raggeto, southern Italy / Geological Society, London, Special Publications, 151:147-156, doi:10.1144/GSL.SP.1999.151.01.15 --- Emő Márton: Diagenesis in platform carbonate rocks: a palaeomagnetic study of an upper Triassic-lower Jurassic section, Tata (Hungary) / Geological Society, London, Special Publications, 151:157-165, doi:10.1144/GSL.SP.1999.151.01.16 --- Alla Shogenova: The influence of dolomitization on the magnetic properties of Lower Palaeozoic carbonate rocks in Estonia / Geological Society, London, Special Publications, 151:167-180, doi:10.1144/GSL.SP.1999.151.01.17 --- Herbert Haubold: Alteration of magnetic properties of Palaeozoic platform carbonate rocks during burial diagenesis (Lower Ordovician sequence, Texas, USA) / Geological Society, London, Special Publications, 151:181-203, doi:10.1144/GSL.SP.1999.151.01.18 --- Glossary / Geological Society, London, Special Publications, 151:205-208, doi:10.1144/GSL.SP.1999.151.01.19
    Location: Reading room
    Location: Reading room
    Branch Library: GFZ Library
    Branch Library: AWI Library
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  • 2
    Publication Date: 2022-05-25
    Description: Author Posting. © National Academy of Sciences, 2006. This article is posted here by permission of National Academy of Sciences for personal use, not for redistribution. The definitive version was published in Proceedings of the National Academy of Sciences of the United States of America 103 (2006): 1342-1346, doi:10.1073/pnas.0503198103.
    Description: Recent observations of changes in some tundra ecosystems appear to be responses to a warming climate. Several experimental studies have shown that tundra plants and ecosystems can respond strongly to environmental change, including warming; however, most studies were limited to a single location and were of short duration and based on a variety of experimental designs. In addition, comparisons among studies are difficult because a variety of techniques have been used to achieve experimental warming and different measurements have been used to assess responses. We used metaanalysis on plant community measurements from standardized warming experiments at 11 locations across the tundra biome involved in the International Tundra Experiment. The passive warming treatment increased plant-level air temperature by 1-3°C, which is in the range of predicted and observed warming for tundra regions. Responses were rapid and detected in whole plant communities after only two growing seasons. Overall, warming increased height and cover of deciduous shrubs and graminoids, decreased cover of mosses and lichens, and decreased species diversity and evenness. These results predict that warming will cause a decline in biodiversity across a wide variety of tundra, at least in the short term. They also provide rigorous experimental evidence that recently observed increases in shrub cover in many tundra regions are in response to climate warming. These changes have important implications for processes and interactions within tundra ecosystems and between tundra and the atmosphere.
    Description: The projects represented here were supported by many sources, including the National Science Foundation, Swedish Natural Science Research Council, United Kingdom Natural Environment Research Council, Natural Sciences and Engineering Research Council of Canada, Research Council of Norway, Icelandic Centre for Research, and the Academy of Finland. Coordination of activities was made possible with support from the Bonanza Creek Long-Term Ecological Research site.
    Keywords: Arctic and alpine ecosystems ; Biodiversity ; Climate change ; Vegetation change
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: 353582 bytes
    Format: application/pdf
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 3191-3197 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A modified version of the microwave signal processing system for the 1.5 tonne niobium bar gravitational radiation antenna at the University of Western Australia has been developed and tested during preparations for long-term observation. Among the new features of the system are a noncontacting microwave coupling to the motion transducer, cryogenic low-noise amplification, and automatic carrier suppression with improved long-term stability.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Biochemistry 28 (1989), S. 628-635 
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 571-577 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A comparison has been made between the Al via fill mechanisms in both reflow and forcefill processes. Cross-sectional transmission electron microscopy has been used to study the Al transport into the vias as a function of time. Our analysis shows that reflow and forcefill results can be explained by a stress relaxation model. We propose that the transport of aluminum into the vias as a function of time is described by both diffusion and dislocation movement. In the case of reflow at high temperature, the vias may be filled completely, after closure, by high-temperature creep of Al. In the case of forcefill, an additional high stress has been applied which raises the strain levels such to activate the dislocation glide and climb mechanism. The results from detailed investigations of the microstructure by cross-sectional transmission electron microscopy support these new insights. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 1905-1909 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Gravitational radiation detectors must detect extremely small displacements, and thus require elaborate vibration isolation systems to attenuate the surrounding environmental noise. Contacting electrical leads can provide a direct path that will short circuit the vibration isolation, and degrade the antenna Q factor. Noncontacting microstrip transceivers provide a practical means of electromagnetically coupling to a resonant bar gravitational antenna when a microwave transducer is used as a signal readout system. Two microwave patch antennas now operate as transceivers on the University of Western Australia's 1.5 tonne niobium bar gravitational radiation antenna and are described in detail in this paper. This system allows improved vibration isolation without degradation of the acoustic Q factor of the niobium bar. Combined with a cryogenic amplifier, this system should achieve a reduction of 57 dB in the series noise power. This corresponds to a factor of 700 reduction in the effective displacement noise when referred to the transducer, from 2×10−16 to 3×10−19 m/(square root of)Hz.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 76 (1972), S. 246-248 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 21 (1983), S. 0 
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: The hydraulic properties of commercial well screens were investigated to determine which screen design features affected head loss. The test program began with laboratory experiments and continued as a field-scale experiment with the installation of a well field in the Thames Valley Gravel Aquifer.The laboratory experiments indicated that, for all practical purposes, the head loss attributable to all of the screens tested was negligible. The experimental head loss, however, did vary from screen to screen, particularly at high intake velocities, and the screens could be ranked on the basis of their hydraulic efficiencies. This efficiency hierarchy is explained tentatively in terms of the screen construction methods and slot geometry. The field experiments showed that the hydraulic performance of all well screens is independent of screen design provided that the open area of the screen is above about 10%. The field experiments also indicated that the development capacity of a screen in a gravel aquifer is not wholly dependent on screen design, but that progressive development does increase the hydraulic efficiency of a well.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 34 (1987), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Detailed studies of a new, complete Marl Slate core in South Yorkshire have provided information on isotopic (δ13C, δ18O, δ34S) and geochemical variations (trace elements and C/S ratio) which enable the formulation of a model for carbonate and sulphide precipitation in the Late Permian Zechstein Sea. Calcite and dolomite are intimately associated; the fine lamination, organic character and absence of benthos in the sediments are indicative of anoxic conditions. Lithologically the core can be divided into a lower, predominantly sapropelic Marl Slate (2 m) and an upper Transition Zone (0·65 m) of alternating sapropel and calcite-rich and dolomite-rich carbonates.C/S ratios are 2·22 for the Marl Slate and 1·72 for the Transition Zone respectively, both characteristic of anoxic environments. δ18O in the carbonates shows a large and systematic variation closely mirrored by variations in calcite/dolomite ratio. The results suggest a fractionation factor equivalent to a depletion of 3·8% for 18O and 1·5% for 13C in calcite. The δ34S values of pyrite are isotopically light (mean value = - 32·7%) suggesting a fractionation factor for the Marl Slate of almost 44%, typical of anoxic basins.The results are related to stratification in the early Zechstein Sea. Calcite was precipitated in oxic upper layers above the halocline. Below the oxic/anoxic boundary framboidal pyrite was precipitated, resulting in lower sulphate concentration and elevated Mg/Ca ratio (due to calcite precipitation). As a result of this, dolomite formation occurred below the oxic/anoxic interface, within the anoxic water column and in bottom sediments. Variations in calcite/dolomite ratios, and isotopic variations, are thus explained by fluctuations in the relative level of the oxic/anoxic boundary in the Zechstein Sea.
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