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  • 1
    Keywords: Geologie ; Mittelozeanischer Rücken ; Deep-sea ecology ; Hydrothermal vents ; Magmatism ; Mid-ocean ridges ; Sea-floor spreading ; Submarine geology
    Description / Table of Contents: Jean-Christophe Sempéré, Brian P. West, and Louis Géli: The Southeast Indian Ridge between 127° and 132°40′E: contrasts in segmentation characteristics and implications for crustal accretion / Geological Society, London, Special Publications, 118:1-15, doi:10.1144/GSL.SP.1996.118.01.01 --- Philippe Blondel: Segmentation of the Mid-Atlantic Ridge south of the Azores, based on acoustic classification of TOBI data / Geological Society, London, Special Publications, 118:17-28, doi:10.1144/GSL.SP.1996.118.01.02 --- Eddie McAllister and Johnson R. Cann: Initiation and evolution of boundary-wall faults along the Mid-Atlantic Ridge, 25–29°N / Geological Society, London, Special Publications, 118:29-48, doi:10.1144/GSL.SP.1996.118.01.03 --- Simon Allerton, Roger C. Searle, and Bramley J. Murton: Bathymetric segmentation and faulting on the Mid-Atlantic Ridge, 24°00′N to 24°40′N / Geological Society, London, Special Publications, 118:49-60, doi:10.1144/GSL.SP.1996.118.01.04 --- Kate Lawson, Roger C. Searle, Julian A. Pearce, Paul Browning, and Pamela Kempton: Detailed volcanic geology of the MARNOK area, Mid-Atlantic Ridge north of Kane transform / Geological Society, London, Special Publications, 118:61-102, doi:10.1144/GSL.SP.1996.118.01.05 --- Rodey Batiza: Magmatic segmentation of mid-ocean ridges: a review / Geological Society, London, Special Publications, 118:103-130, doi:10.1144/GSL.SP.1996.118.01.06 --- C. J. Robinson, R. S. White, M. J. Bickle, and T. A. Minshull: Restricted melting under the very slow-spreading Southwest Indian ridge / Geological Society, London, Special Publications, 118:131-141, doi:10.1144/GSL.SP.1996.118.01.07 --- Stephen J. Edwards, Trevor J. Falloon, John Malpas, and Rolf B. Pedersen: A review of the petrology of harzburgites at Hess Deep and Garrett Deep: implications for mantle processes beneath segments of the East Pacific Rise / Geological Society, London, Special Publications, 118:143-156, doi:10.1144/GSL.SP.1996.118.01.08 --- Rachel M. Haymon: The response of ridge-crest hydrothermal systems to segmented, episodic magma supply / Geological Society, London, Special Publications, 118:157-168, doi:10.1144/GSL.SP.1996.118.01.09 --- C. R. German, L. M. Parson, B. J. Murton, and H. D. Needham: Hydrothermal activity and ridge segmentation on the Mid-Atlantic Ridge: a tale of two hot-spots? / Geological Society, London, Special Publications, 118:169-184, doi:10.1144/GSL.SP.1996.118.01.10 --- C. J. MacLeod and C. E. Manning: Influence of axial segmentation on hydrothermal circulation at fast-spreading ridges: insights from Hess Deep / Geological Society, London, Special Publications, 118:185-198, doi:10.1144/GSL.SP.1996.118.01.11 --- V. V. Zaykov, V. V. Maslennikov, E. V. Zaykova, and R. J. Herrington: Hydrothermal activity and segmentation in the Magnitogorsk-West Mugodjarian zone on the margins of the Urals palaeo-ocean / Geological Society, London, Special Publications, 118:199-210, doi:10.1144/GSL.SP.1996.118.01.12 --- Eve C. Southward, Verena Tunnicliffe, Michael B. Black, David R. Dixon, and Linda R.J. Dixon: Ocean-ridge segmentation and vent tubeworms (Vestimentifera) in the NE Pacific / Geological Society, London, Special Publications, 118:211-224, doi:10.1144/GSL.SP.1996.118.01.13 --- Verena Tunnicliffe, C. Mary R. Fowler, and Andrew G. Mcarthur: Plate tectonic history and hot vent biogeography / Geological Society, London, Special Publications, 118:225-238, doi:10.1144/GSL.SP.1996.118.01.14 --- E. G. Nisbet and C. M. R. Fowler: The hydrothermal imprint on life: did heat-shock proteins, metalloproteins and photosynthesis begin around hydrothermal vents? / Geological Society, London, Special Publications, 118:239-251, doi:10.1144/GSL.SP.1996.118.01.15
    Pages: Online-Ressource (IX, 258 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1897799721
    Language: English
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  • 2
    Keywords: Geothermik ; Hydrothermale Lagerstätte ; Hydrothermale Phase ; Hydrothermal vent ecology ; Hydrothermal vents ; Oceanografia
    Description / Table of Contents: L. M. Parson, C. L. Walker, and D. R. Dixon: Hydrothermal vents and processes / Geological Society, London, Special Publications, 87:1-2, doi:10.1144/GSL.SP.1995.087.01.01 --- C. R. German, E. T. Baker, and G. Klinkhammer: Regional setting of hydrothermal activity / Geological Society, London, Special Publications, 87:3-15, doi:10.1144/GSL.SP.1995.087.01.02 --- Sergey G. Krasnov, Irina M. Poroshina, and Georgiy A. Cherkashev: Geological setting of high-temperature hydrothermal activity and massive sulphide formation on fast- and slow-spreading ridges / Geological Society, London, Special Publications, 87:17-32, doi:10.1144/GSL.SP.1995.087.01.03 --- Bramley J. Murton, Cindy Van Dover, and Eve Southward: Geological setting and ecology of the Broken Spur hydrothermal vent field: 29°10′N on the Mid-Atlantic Ridge / Geological Society, London, Special Publications, 87:33-41, doi:10.1144/GSL.SP.1995.087.01.04 --- S. G. Krasnov, G. A. Cherkashev, T. V. Stepanova, B. N. Batuyev, A. G. Krotov, B. V. Malin, M. N. Maslov, V. F. Markov, I. M. Poroshina, M. S. Samovarov, A. M. Ashadze, L. I. Lazareva, and I. K. Ermolayev: Detailed geological studies of hydrothermal fields in the North Atlantic / Geological Society, London, Special Publications, 87:43-64, doi:10.1144/GSL.SP.1995.087.01.05 --- Edward T. Baker: Characteristics of hydrothermal discharge following a magmatic intrusion / Geological Society, London, Special Publications, 87:65-76, doi:10.1144/GSL.SP.1995.087.01.06 --- J. M. Edmond, A. C. Campbell, M. R. Palmer, G. P. Klinkhammer, C. R. German, H. N. Edmonds, H. Elderfield, G. Thompson, and P. Rona: Time series studies of vent fluids from the TAG and MARK sites (1986, 1990) Mid-Atlantic Ridge: a new solution chemistry model and a mechanism for Cu/Zn zonation in massive sulphide orebodies / Geological Society, London, Special Publications, 87:77-86, doi:10.1144/GSL.SP.1995.087.01.07 --- G. P. Klinkhammer, C. S. Chin, C. Wilson, and C. R. German: Venting from the Mid-Atlantic Ridge at 37°17′N: the Lucky Strike hydrothermal site / Geological Society, London, Special Publications, 87:87-96, doi:10.1144/GSL.SP.1995.087.01.08 --- R. H. James, H. Elderfield, M. D. Rudnicki, C. R. German, M. R. Palmer, C. Chin, M. J. Greaves, E. Gurvich, G. P. Klinkhammer, E. Ludford, R. A. Mills, J. Thomson, and A. C. Williams: Hydrothermal plumes at Broken Spur, 29°N Mid-Atlantic Ridge: chemical and physical characteristics / Geological Society, London, Special Publications, 87:97-110, doi:10.1144/GSL.SP.1995.087.01.09 --- M. R. Palmer, E. M. Ludford, C. R. German, and M. D. Lilley: Dissolved methane and hydrogen in the Steinahóll hydrothermal plume, 63°N, Reykjanes Ridge / Geological Society, London, Special Publications, 87:111-120, doi:10.1144/GSL.SP.1995.087.01.10 --- Rachel A. Mills: Hydrothermal deposits and metalliferous sediments from TAG, 26°N Mid-Atlantic Ridge / Geological Society, London, Special Publications, 87:121-132, doi:10.1144/GSL.SP.1995.087.01.11 --- F. M. Stuart, P. J. Harrop, R. Knott, A. E. Fallick, G. Turner, Y. Fouquet, and D. Rickard: Noble gas isotopes in 25 000 years of hydrothermal fluids from 13°N on the East Pacific Rise / Geological Society, London, Special Publications, 87:133-143, doi:10.1144/GSL.SP.1995.087.01.12 --- Penny Dickson, Adam Schultz, and Andrew Woods: Preliminary modelling of hydrothermal circulation within mid-ocean ridge sulphide structures / Geological Society, London, Special Publications, 87:145-157, doi:10.1144/GSL.SP.1995.087.01.13 --- A. Rachel Pascoe and Johnson R. Cann: Modelling diffuse hydrothermal flow in black smoker vent fields / Geological Society, London, Special Publications, 87:159-173, doi:10.1144/GSL.SP.1995.087.01.14 --- Rowena C. Duckworth, Richard Knott, Anthony E. Fallick, David Rickard, Bramley J. Murton, and Cindy Van Dover: Mineralogy and sulphur isotope geochemistry of the Broken Spur sulphides, 29°N, Mid-Atlantic Ridge / Geological Society, London, Special Publications, 87:175-189, doi:10.1144/GSL.SP.1995.087.01.15 --- Steven D. Scott and Raymond A. Binns: Hydrothermal processes and contrasting styles of mineralization in the western Woodlark and eastern Manus basins of the western Pacific / Geological Society, London, Special Publications, 87:191-205, doi:10.1144/GSL.SP.1995.087.01.16 --- Richard Knott, Anthony E. Fallick, David Rickard, and Harald Bäcker: Mineralogy and sulphur isotope characteristics of a massive sulphide boulder, Galapagos Rift, 85°55′W / Geological Society, London, Special Publications, 87:207-222, doi:10.1144/GSL.SP.1995.087.01.17 --- G. A. Cherkashev: Hydrothermal input into sediments of the Mid-Atlantic Ridge / Geological Society, London, Special Publications, 87:223-229, doi:10.1144/GSL.SP.1995.087.01.18 --- R. A. Hodkinson and D. S. Cronan: Hydrothermal sedimentation at ODP Sites 834 and 835 in relation to crustal evolution of the Lau Backarc Basin / Geological Society, London, Special Publications, 87:231-248, doi:10.1144/GSL.SP.1995.087.01.19 --- S. M. Sudarikov, M. P. Davydov, V. L. Bazelyan, and V. G. Tarasov: Distribution and transformation of Fe and Mn in hydrothermal plumes and sediments and the potential function of microbiocoenoses / Geological Society, London, Special Publications, 87:249-255, doi:10.1144/GSL.SP.1995.087.01.20 --- Cindy Lee van Dover: Ecology of Mid-Atlantic Ridge hydrothermal vents / Geological Society, London, Special Publications, 87:257-294, doi:10.1144/GSL.SP.1995.087.01.21 --- Bruce Shillito, Jean-Pierre Lechaire, Gérard Goffinet, and Francoise Gaill: Composition and morphogenesis of the tubes of vestimentiferan worms / Geological Society, London, Special Publications, 87:295-302, doi:10.1144/GSL.SP.1995.087.01.22 --- P. R. Dando, J. A. Hughes, and F. Thiermann: Preliminary observations on biological communities at shallow hydrothermal vents in the Aegean Sea / Geological Society, London, Special Publications, 87:303-317, doi:10.1144/GSL.SP.1995.087.01.23 --- S. M. Sudarikov and S. V. Galkin: Geochemistry of the Snake Pit vent field and its implications for vent and non-vent fauna / Geological Society, London, Special Publications, 87:319-327, doi:10.1144/GSL.SP.1995.087.01.24 --- Gareth Rieley, Cindy L. van Dover, David B. Hedrick, David C. White, and Geoffrey Eglinton: Lipid characteristics of hydrothermal vent organisms from 9°N, East Pacific Rise / Geological Society, London, Special Publications, 87:329-342, doi:10.1144/GSL.SP.1995.087.01.25 --- D. R. Dixon, D. A. S. B. Jollivet, L. R. J. Dixon, J. A. Nott, and P. W. H. Holland: The molecular identification of early life-history stages of hydrothermal vent organisms / Geological Society, London, Special Publications, 87:343-350, doi:10.1144/GSL.SP.1995.087.01.26 --- Don A. Cowan: Hyperthermophilic enzymes: biochemistry and biotechnology / Geological Society, London, Special Publications, 87:351-363, doi:10.1144/GSL.SP.1995.087.01.27 --- Christopher R. German and Martin V. Angel: Hydrothermal fluxes of metals to the oceans: a comparison with anthropogenic discharge / Geological Society, London, Special Publications, 87:365-372, doi:10.1144/GSL.SP.1995.087.01.28 --- Kevin G. Speer and Karl R. Helfrich: Hydrothermal plumes: a review of flow and fluxes / Geological Society, London, Special Publications, 87:373-385, doi:10.1144/GSL.SP.1995.087.01.29 --- Mark D. Rudnicki: Particle formation, fallout and cycling within the buoyant and non-buoyant plume above the TAG vent field / Geological Society, London, Special Publications, 87:387-396, doi:10.1144/GSL.SP.1995.087.01.30
    Pages: Online-Ressource (411 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 189779925X
    Language: English
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  • 3
    Publication Date: 2013-08-31
    Description: M82 is an irregular (Type II) galaxy located at a distance of approximately 3.5 Mpc. Its unusual appearance and high luminosity, particularly in the infrared, has led many astronomers to classify it as a starburst galaxy. This interpretation is supported by the observation of a large number of radio continuum sources within the central arcminute of the galaxy. These sources are thought to be associated with supernova remnants. The starburst in the central region of the galaxy is believed to have been triggered by tidal interaction with either M81 or the HI cloud surrounding the M81 group. High angular resolution CO-12 J=1 to 0 maps by Nakai (1984) and Lo et al. (1987) indicate the existence of a 400 to 450 pc rotating ring of molecular material about the central region of M82. Red- and blue-shifted absorption components of the HI and OH lines measured by Weliachew et al. (1984) provided the first evidence for the presence of the ring. Many astronomers, each using a different angular resolution, have compared CO-12 J=1 to 0, J=2 to 1, and J=3 to 2 emission and concluded that a large fraction of the CO emission is optically thin. Additional observations suggest that the molecular material toward the center of M82 is clumpy and dense. Unlike the lower rotational transitions of CO, CS is excited only at relatively high densities, n sub H sub 2 greater than or equal to 10(exp 4) cm(-3). It is in clouds with these densities that stars are expected to form. This makes CS an excellent probe of star formation regions. Researchers observed the CS J=2 to 1 transition (97.981 GHz) toward 52 positions in M82 using the National Radio Astronomy Observatory (NRAO) 12 m telescope.
    Keywords: ASTROPHYSICS
    Type: NASA, Ames Research Center, The Interstellar Medium in External Galaxies: Summaries of Contributed Papers; p 78-80
    Format: application/pdf
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  • 4
    Publication Date: 2019-07-12
    Description: A small map of the 1.3-mm continuum emissioin from cool dust in the central starburst region of M82 is presented. The source is found to be less than about 45 arcsecs in extent and centered on the region of brightest IR emission. The total flux density at 1.3-mm is 1.3 + or - 0.3 Jy. The molecular hydrogen mass in M82 is 3 X 10 to the 8th solar masses, with an uncertainty of + or - 30 percent. An approximate correction to masses derived from long-wavelength photometry when the heavy element abundance is different from that of the solar neighborhood is discussed. This correction reduces the derived mass of M82 to about 1 X 10 to the 8th solar masses.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 214; 1-2
    Format: text
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  • 5
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    In:  EPIC3Biomarkers. Research and application in the assessment of environmental health, Series H: Cell Biology, Vol.68
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 79 (1975), S. 2948-2952 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Key objectives of the first ten years of ITER operation are the investigation of the physics of burning plasmas and the demonstration of long-pulse ignited plasma technologies. These include studies of plasma confinement and stability, divertor operation, disruption mitigation and control, noninductive current drive, and steady state operation under conditions when the plasma is heated predominantly by alpha particles. The ITER operational plan envisages two and a half years for commissioning and initial operation with hydrogen plasmas at up to 100 MW of auxiliary heating power when initial tests of divertor operation and evaluation of disruption effects will be made. In order to meet the operational and programmatic goals, it will be necessary to make a wide range of plasma measurements. In this article the preliminary operational plan and physics program are presented and the implications for plasma measurements are outlined. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 452-457 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The detailed design of the magnetic diagnostic for ITER is presented. The system consists of groups of pickup coils and flux loops on the vessel wall, the back plate, and the divertor. These sensors provide the measurements for the equilibrium reconstruction and the fluctuation analysis. The system is supplemented by Rogowski coils for halo current measurements and by a diamagnetic loop. The complete system meets the measurement requirements, matching those of contemporary large divertor tokamaks. The maximum radiation exposure is such that the sensors will survive for the lifetime of the ITER. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Boston, MA, USA : Blackwell Science Inc
    Restoration ecology 11 (2003), S. 0 
    ISSN: 1526-100X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The effect of increasing planting unit size and stabilizing sediment was examined for two seagrass planting methods at Carnac Island, Western Australia in 1993. The staple method (sprigs) was used to transplant Amphibolis griffithii (J. M. Black) den Hartog and the plug method was used to transplant A. griffithii and Posidonia sinuosa Cambridge and Kuo. Transplant size was varied by increasing the number of rhizomes incorporated into a staple and increasing the diameter of plugs. Planting units were transplanted into bare sand, back into the original donor seagrass bed, or into a meadow of Heterozostera tasmanica, which is an important colonizing species. Sprigs of A. griffithii were extracted from a monospecific meadow; tied into bundles of 1, 2, 5, and 10 rhizomes; and planted into unvegetated areas. Half the units were surrounded by plastic mesh and the remainder were unmeshed. All treatments were lost within 99 days after transplanting, and although larger bundles survived better than smaller ones, no significant differences could be attributed to the effects of mesh or sprig size. Plugs of P. sinuosa and A. griffithii were extracted from monospecific meadows using polyvinyl chloride pipe of three diameters, 5, 10, and 15 cm, and planted into unvegetated areas nearby. Half the units were surrounded by plastic mesh and the remainder were unmeshed. Posidonia sinuosa plugs were also placed within a meadow of H. tasmanica (Martens ex Aschers.) den Hartog. Only 60% of A. griffithii plug sizes survived 350 days after transplanting back into the donor bed; however, survival of transplants at unvegetated areas varied considerably, and analysis of variance indicated a significant two-way interaction between treatment and plug size. Transplants survived better when meshed (90% survived) and survival improved with increasing plug size. Posidonia sinuosa transplants survived poorly (no plugs survived beyond 220 days in bare or meshed treatments) regardless of size. Survival of 10- and 15-cm plugs was markedly better than the 5-cm plugs in vegetated areas, including the H. tasmanica meadow. The use of large seagrass plugs may be appropriate for transplantation in high-energy wave environments.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Key objectives of the first ten years of ITER operation are the investigation of the physics of burning plasmas and the demonstration of long-pulse ignited plasma technologies. These include studies of plasma confinement and stability, divertor operation, disruption mitigation and control, noninductive current drive, and steady state operation under conditions when the plasma is heated predominantly by alpha particles. The ITER operational plan envisages two and a half years for commissioning and initial operation with hydrogen plasmas at up to 100 MW of auxiliary heating power when initial tests of divertor operation and evaluation of disruption effects will be made. In order to meet the operational and programmatic goals, it will be necessary to make a wide range of plasma measurements. In this article the preliminary operational plan and physics program are presented and the implications for plasma measurements are outlined. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
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