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  • 1990-1994  (8)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 104-110 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Recent progress in the knowledge of the Alboran region subaerial geology and the results of the Garcia del Cid seismic cruises stimulate a reexamination of the tectonic framework of the southwestern part of the Mediterranean. The subaerial geology is governed by a north-south stress field, whereas the marine structures indicate an east-west stress regime. This apparent contradiction results from a difference in age of the tectonics. The main marine extensional features are related to the opening of basins toward the southwest during Burdigalian-Langhian times, while the subaerial structures were developed during a compressional regime from the Tortonian period up to the present.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 179-186 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Analysis of airgun seismic profiles from the Alboran Sea reveals a complex morphostructure with margins, basins, and structural highs. North of the Alboran Ridge, south-facing margins have a passive style of evolution, with thick progradational sequences of post-Messinian deposits, whereas north-facing margins are tectonized along structural highs with reduced sediment cover. Basins are extensional features developed since the Early Miocene by mechanisms of tectonic escape and pull-apart, under generalized northwest-southeast to north-south compression. Depositional sequences in this semi-land-locked sea were controlled by the local tectonism and influenced by global sea-level oscillations.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 61-65 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 111-116 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The preliminary interpretation of new high-resolution seismic reflection profiles from the eastern Alboran Sea indicates strong geological similarities between this region and southeastern Spain. The principal neotectonic elements, which result from roughly north-south compression, are defined by northeast-southwest oriented wrenches separated by intervening north-south and west-northwest-east-southeast strike-slip faults. Variations in direction of principal stress axes have permitted faulting to alternate between these two systems, and for reverse faulting to occur within some wrench zones during periods when there was a component of compression perpendicular to them.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 137-143 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Four main seismic sequences of Plio-Quaternary age identified in the northeastern Alboran Sea record the main phases of margin and basin development. The geometry and thickness of these sequences reveal that the Motril and Almeria basins contain the main sediment depocenters. Sea level fluctuations and sediment input were probably the most significant factors controlling growth patterns, but the presence of structural barriers and the active tectonism influenced sediment traps and downslope gravity processes.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 165-172 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The western Alboran Sea contains three morphostructural domains: continental margins, structural highs, and basins, some with diapirs. Seven sequences from Tortonian to upper Quaternary, identified on airgun profiles, record a distinct set of depositional events. The tectonic evolution was influenced by the relative movement of the African and Iberian plates. Connections through the Atlantic/Mediterranean gateways and global sea level oscillations are recorded as major unconformities in the depositional record. A Neogene change in tectonic character from transtensional to transpressional regimes is postulated on the basis of changes in the regional stress field orientation.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Geo-marine letters 12 (1992), S. 173-178 
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The northern Alboran Ridge margin depicts fault-bounded, structural blocks tilted downward to the basins. Post-Messinian sequences fill depressions on these blocks with thick depositional wedges thinning basinward. A change in the stress field after the Early Pliocene produced structural inversions and generalized uplifting of the Alboran Ridge from the Late Pliocene to Recent time.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 4 (1993), S. 187-191 
    ISSN: 1573-482X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Tin oxide films were deposited by spray pyrolysis on KBr and glass substrates. Conventional and high-resolution electron microscopy were used to determine grain sizes, atomic arrays and crystallographic details present in the films as a function of the growing parameters used. Optical and electrical properties were also measured and related to the structural details observed. The existence of SnO and Sn3O4 phases was revealed in films obtained at low substrate temperatures.
    Type of Medium: Electronic Resource
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