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  • 1
    Electronic Resource
    Electronic Resource
    Protonation Effects on n → π* Transitions in Pyrimidine1 (1961)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 83 (1961), S. 2042-2045 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01470a004
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  • 2
    Electronic Resource
    Electronic Resource
    Charge transfer intensities of iodine complexes with N-heterocyclics (1968)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 90 (1968), S. 1700-1705 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01009a004
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  • 3
    Electronic Resource
    Electronic Resource
    Polarization of Triplet→Singlet Emission Spectra (1961)
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 800-801 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The triplet-singlet transitions, forbidden by multiplicity selection rules, can be made allowed by the spin-orbit perturbations, which mixes states of different multiplicity. Thus the emitting triplet state, T, can be perturbed by one or more of the singlet states, 8%, through spin-orbit coupling ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/191800a0
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  • 4
    Electronic Resource
    Electronic Resource
    Unusual Sub-Moho Events Near Bornholm, Baltic Sea: Modelling of Babel Seismic Wide-Angle Data and A Tectonic Interpretation (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 125 (1996), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: From the BABEL near-vertical record sections a sporadically strong sub-Moho event, NE of Bornholm dipping 20°-30° to the NE (along line), was observed over a distance of about 70km, 4 to 5 s two-way traveltime (TWT) below the Moho. the same reflection from the uppermost mantle (Rum) was observed in the piggy-back wide-angle records of station 10 (Bornholm), about 2 to 3 s TWT later than the Moho event PmP (slant ray paths) at offsets of 100 to 150km. A nearby station (station 11) recorded similar, although much weaker, Rum signals. Our preferred model, inferred from ample computations of synthetic seismograms, is a N- to NE-dipping reflector of limited thickness below a low velocity zone.Studies of similar, slightly dipping events around Great Britain and elsewhere— although mostly not confirmed by wide-angle studies—indicate the presence of faults or shear zones in a rigid uppermost mantle. Listric faults in the upper crust, merging with the zone of unusually high reflectivity of the lower crust, which acted as a transfer zone, seem to be connected with still deeper faulting. the wide-angle information of Rum provides additional evidence for faulting processes in the uppermost mantle, most probably connected with the Alpine orogeny.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1996.tb06545.x
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  • 5
    Electronic Resource
    Electronic Resource
    Deep seismic sounding studies in the north Cambay and Sanchor basins, India (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 103 (1990), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Deep seismic sounding (DSS) studies have been carried out in the north Cambay and Sanchor sedimentary basins in western India along three lines covering about 350km. Seismic refraction and wide angle reflection data, pertinent to the sedimentary basin as well as the deep crustal section, have been recorded from 41 shot points using a 60 channel DFS-V digital recording system with 200 m geophone spacing and 4 ms data sampling. Extensive modelling and interpretation of a large number of seismic record sections reveal four sub-basins in the sedimentary section along these lines. Maximum depth to the granitic/Proterozoic basement (P-wave velocity 5.9–6.0 km s-1) is about 5000 m in the north Sanchor and the Patan sub-basins and about 5600 m in the south Sanchor sub-basin. The deepest part of the sedimentary basin is delineated within the Gandhinagar sub-basin where the basement depth reaches 7700 m. The Deccan Traps (P-wave velocity 4.3–4.8 km s-1) form the base of the Tertiary sediments, almost in the entire study area except the extreme northern part. There is also some indication of the presence of sub-Trappean Mesozoic sediments along this profile. Within the sedimentary basin two horst features, one near Diyodar (the Diyodar ridge) and the other northwest of Mehsana (the Unhawa ridge), are indicated by the seismic data consistent with the tectonics of the region.The thickness of the upper crust in this region does not exceed 15 km (P-wave velocity reaching 6.3km s-1). A prominent low-velocity zone (velocity 5.5 km s-1) occurs in the depth range from 10.5 to 12.5 km. The lower crust consists of two layers of velocities 6.6–6.9 km s-1 and 7.3–7.4 km s-1, the discontinuity between them occurring at 23–25 km depth. The Moho discontinuity (PM velocity 8.0 km s-1) lies at a depth of 31–33 km. The high-velocity (7.3–7.4 km s-1) lower crustal layer represents underplating of the crust due to mantle upwelling and rifting with large-scale extrusion of the Deccan volcanics. The large thickness of the Tertiary sediments in the Cambay basin and a relatively thin crust in the region suggest further rifting during the Tertiary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1990.tb05676.x
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  • 6
    Electronic Resource
    Electronic Resource
    Crustal structure of the west Bengal basin, India from deep seismic sounding investigations (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 111 (1992), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Basement and sub-basement crustal configuration of parts of the west Bengal basin has been delineated from inverse and forward modelling of refraction and wide-angle reflection data obtained along two east-west profiles: (a) Beliator-Burdwan-Bangaon (profile-1) about 180 km long and (b) Gopali-Tamluk-Port Canning (profile-2) about 140 km long. The study has revealed the existence of four groups of prominent refractors (velocities 1.7–2.1 km s−1, 2.7–3.2 km s−1, 3.7–4.2 km s−1, and 4.6–5.3 km s−1) overlying the crystalline basement with a velocity of 5.8–6.2 km s−1. Rajmahal Traps (velocity 4.6–5.3 km s−1, averaging 4.8 km s−1) occur beneath the base of the Tertiary sediments in the middle parts of the profiles. The presence of sub-Trappean Gondwanas is also indicated from the wide-angle reflection modelling supported by deep well lithological information. In general, depth to the basement is found to increase from west to east, with a maximum depth of around 10 to 11 km at the extreme eastern parts of the profiles. A basement upwarp, with a sharp flexure west of Bishnupur on profile-2 in combination with the fault west of Shantipur on profile-1 possibly brings into focus the regionally extending NNE-SSW ‘Hinge zone’. A low velocity layer (LVL) of about 2 to 3 km thickness (velocity 5.6–5.8 km s−1) has been inferred in the upper crust in this area. In general the thickness of the upper (including the sedimentary column) and the middle (6.4–6.6 km s−1 velocity) parts of the crust is found to be larger (thickness varying between 22 and 27 km) than the lower crustal column (interval velocity 6.8–7.0 km s−1 with a thickness of 5 to 10 km). The Moho lies at varying depths of 36 to 26 km along profile-1, with a prominent domal feature of about 40 km width between Satgachia and west of Shantipur. In the middle part of profile-2 the Moho occurs at depths of 32 to 34 km, with a mild flexure east of Tamluk. Configuration of the Moho indicates that the crust is more akin to continental in nature in the western and middle parts of the basin, whereas significantly thinned continental crust is indicated in the eastern and southeastern parts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1992.tb00554.x
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  • 7
    Electronic Resource
    Electronic Resource
    CHARGE TRANSFER INTERACTION BETWEEN IODINE AND AZINES: IONIZATION POTENTIALS OF AZINES1 (1963)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 67 (1963), S. 1067-1069 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100799a029
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  • 8
    Electronic Resource
    Electronic Resource
    An analytical migration method for crustal wide angle reflections (1982)
    Springer
    Studia geophysica et geodaetica 26 (1982), S. 254-271 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary An analytical migration method is developed for inverting wide angle seismic reflection travel time data with proper migration. In this method the concept of effective velocity (V eff ) in the vertically inhomogeneous earth has been used, which takes into account the refraction effect. It is shown that the migration process in this case becomes extremely rapid as curved ray paths are replaced by equivalent straight paths. A post migration ‘sliding correction’ is found to be necessary, which arises due to the non-collinearity of the recording point, reflection point and the image point in the equivalent straight path geometry for dipping reflectors. Calculations for some representative dips show that, for the depths and recording ranges of interest in DSS, the vertical component of the sliding correction is negligible compared to the horizontal component. However, even the horizontal component is not significant for reflectors with gentle dips. The effect of certain simplifying assumptions in the estimation of V eff is shown to be within the error limits of velocity determination. A computer programme package has been written for carrying out the migration. The method yields more accurate results in various theoretical and field cases than the conventional graphical wave front methods which are at present widely used for crustal reflection work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01635034
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  • 9
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    Solvent Effects on n→π Transitions in Pyrazine (1960)
    American Institute of Physics
    Details
    Publication Date: 1960-08-01
    Print ISSN: 0021-9606
    Electronic ISSN: 1089-7690
    Topics: Chemistry and Pharmacology , Physics
    Published by American Institute of Physics
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  • 10
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    Polarization of T→S Emission Spectra of Azines (1962)
    American Institute of Physics
    Details
    Publication Date: 1962-04-15
    Print ISSN: 0021-9606
    Electronic ISSN: 1089-7690
    Topics: Chemistry and Pharmacology , Physics
    Published by American Institute of Physics
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