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Browsing Active Tectonics, Geophysics, and Structure by Subject "Morocco"
Now showing items 1-17 of 17
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Active tectonics of the western Mediterranean: Geodetic evidence for roll back of a delaminated subcontinental lithospheric slab beneath the Rif Mountains, Morocco
(Geological Society of America, 2006)Surface deformation in Morocco derived from five years of GPS survey observations of a 22-station network, four continuously recording GPS stations, and four IGS stations in Iberia indicate roughly southward motion (~3 ... -
Active tectonism in the intracontinental Middle Atlas Mountains of Morocco: Synchronous crustal shortening and extension
(Geological Society of London, 1996)Geological field observations are integrated with digital topography, LANDSAT imagery, and earthquake focal mechanisms to investigate the Middle and Late Quaternary tectonism in the intracontinental Middle Atlas mountain ... -
Crustal shortening and vertical strain partitioning in the Middle Atlas Mountains of Morocco
(American Geophysical Union, 1998)The NE-SW trending Middle Atlas Mountains of Morocco are obliquely oriented within the late Cenozoic regional stress field, resulting in deformation that is partitioned into strike-slip faulting and thrust-related folding. ... -
Geophysical evidence for lithospheric delamination beneath the Alboran Sea and Rif-Betic mountains
(Nature Publishing Group, 1996)Geophysical evidence is presented for an episode of active delamination of a piece of continental lithosphere. Observations of earthquake hypocentre locations, seismic wave velocities and attenuation, Bouguer gravity, ... -
An integrated geophysical investigation of recent seismicity in the Al-Hoceima region of North Morocco
(Seismological Society of America (SSA), 1997)Data produced by the Moroccan national seismological network and marine seismic reflection profiles are used to investigate the most seismically active region in Morocco, located on the Mediterranean coast at the intersection ... -
Intracontinental rifting and inversion: Missour Basin and Atlas Mountains, Morocco
(American Association of Petroleum Geologists, 1996)The intracontinental High and Middle Atlas mountain belts in Morocco intersect to form the southern and western margins of the Missour Basin, an intermontane basin formed as a result of the uplift and inversion of the ... -
Inversion of synrift normal faults in the High Atlas Mountains, Morocco
(Society for Exploration Geophysics (SEG), 1997)Structural inversion related to intracontinental rifting occurs when extensional rift faults reverse their sense of motion during subsequent episodes of compressional tectonics. Features generated by extension, such as ... -
Inversion tectonics and the evolution of the High Atlas Mountains, Morocco, based on a geological-geophysical transect
(American Geophysical Union, 1999)The High Atlas Mountains of North Africa were formed over a major intracontinental rift system that had extended from what is now the Atlantic margin of Morocco to the Mediterranean coast of Tunisia. The Atlas rift system ... -
Late Cenozoic tectonics of the Middle Atlas Mountains, Morocco: Continental deformation in the diffuse western Mediterranean plate boundary
(Cornell University, 1999)The Atlas Mountains of North Africa, located in the African foreland of the Alpine mountain belts, comprise a 2,000 km long Cenozoic mountain chain whose development was guided by older Mesozoic rift structures. This ... -
Lithospheric and upper mantle structure beneath northern Morocco and central Syria
(Cornell University, 1995)Northern Morocco and central Syria accommodate two of the most significant intraplate mountain belts on earth: the Atlas Mountains (High and Middle) and the Palmyride mountains, respectively. In contrast to interplate ... -
Propagation of regional seismic phases (Lg and Sn) and Pn velocity structure along the Africa-Iberia plate boundary zone
(Blackwell Publishing, 2000)We used over 1000 regional waveforms recorded by 60 seismic stations located in northwest Africa and Iberia to map the efficiency of L g and Sn wave propagation beneath the Gulf of Cadiz, Alboran Sea and bounding Betic, ... -
Regional discrimination of chemical explosions and earthquakes: A case study in Morocco
(Seismological Society of America, 1997)To examine the limitations in the techniques for discriminating between chemical explosions and earthquakes at local and regional distances, we have applied several standard heuristics to seismic events in northwest Morocco ... -
Role of the Atlas Mountains (northwest Africa) within the African-Eurasian plate boundary zone
(Geological Society of America, 2000)The magnitudes and timing of deformation in the intracontinental Atlas Mountains of northern Africa suggest that the Atlas Mountains have been an integral part of the African-Eurasian plate-boundary zone in the western ... -
Sn to Sg conversion and focusing along the Atlantic margin, Morocco: Implications for earthquake hazard evaluation
(American Geophysical Union, 1993)Digital data from a telemetered, short-period seismic network in Morocco provide a new perspective for understanding the cause of severe shaking and macroseismic reports in Morocco produced by large, offshore earthquakes ... -
Structure and evolution of the Neogene Guercif Basin at the junction of the Middle Atlas Mountains and the Rif thrust belt
(American Association of Petroleum Geologists, 2000)The Guercif basin of northern Morocco occupies a 50 x 60 km area where the transpressional Middle Atlas mountains terminate and abut the Rif thrust belt. Analysis of over 800 km of 2-D (two-dimensional) seismic reflection ... -
Superposed folding resulting from inversion of a synrift accommodation zone, Atlas Mountains, Morocco
(American Association of Petroleum Geologists (AAPG), 2004)The conspicuous offset of the northern margin of the High Atlas Mountains is composed of several large superposed folds, one of which is known as the Ait Attab Syncline. The original northeast-trending syncline (F1) was ... -
Three-dimensional upper mantle structure beneath the intraplate Atlas and interplate Rif mountains of Morocco
(American Geophysical Union, 1996)We integrate observations based on teleseismic P wave travel times and available geologic data to infer that the lithosphere beneath the intraplate Atlas mountains is thin and/or it is characterized by lower P wave velocities, ...
