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  • Hordeum vulgare  (1)
  • Key words: Fluid injection, induced seismicity, aseismic slip, downhole monitoring network, surface monitoring network.  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Seismic and Aseismic Slips Induced by Large-scale Fluid Injections (1997)
    Springer
    Pure and applied geophysics 150 (1997), S. 563-583 
    Details
    ISSN: 1420-9136
    Keywords: Key words: Fluid injection, induced seismicity, aseismic slip, downhole monitoring network, surface monitoring network.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract. —A 3600 m deep well has been used to conduct large water injection tests in the Rhine Graben. The total volume injected during the fall 1993 reconnaissance program reached 44000 m3. Induced seismicity was monitored with both a downhole and a surface seismic network. About 20000 events have been recorded by the downhole tools and 165 events with the surface network. The largest observed magnitude reached 1.9, as determined from signal duration observed on the surface network. Borehole televiewer observations show that some slip events were larger than 4 cm at the borehole wall, a value much larger than the slip motion associated with microseismic events, as evaluated from events' magnitude. It is concluded that these observed slip events were aseismic. This implies that induced seismicity is not a good marker for the efficiency of this hydraulic stimulation. It only helps to identify zones of high pore pressure during injection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000240050093
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The genetic basis of scald resistance in western Canadian barley cultivars (1995)
    Springer
    Euphytica 92 (1995), S. 367-374 
    Details
    ISSN: 1573-5060
    Keywords: marker-assisted selection ; genetics ; barley ; Hordeum vulgare ; scald ; Rhynchosporium secalis ; Canada
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The genetic basis of resistance to scald (Rhynchosporium secalis) within barley breeding populations is poorly understood. The design of effective genetically based resistance strategies is predicated on knowledge of the identity of the resistance genes carried by potential parents. The resistance exhibited by a broad selection of western Canadian barley lines was investigated by evaluating their reactions to five R. secalis isolates. Results were compared to the resistance exhibited by previously characterized lines. This comparison, combined with pedigree analysis indicated that there are two different resistance genes present inwwestern Canadian cultivars. These genes were shown to be independent through analysis of a segregating population derived from a cross between Falcon and CDC Silky. This evidence, along with observed linkage of the gene in CDC Silky with an allele specific amplicon developed for a Rhynchosporium secalis resistance locus on chromosome 3, provides evidence that the gene in Falcon is the Rh2 gene derived from Atlas, and the gene (s) in CDC Silky is located within the Rh/Rh3/Rh4 cluster and is similar to the Rh gene in Hudson.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037121
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    Paper (German National Licenses)
    Fulltext
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