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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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North Africa
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Morocco
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Rif (1)
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Asia
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Far East
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China (1)
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Malaysia (1)
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Thailand (1)
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Atlantic Ocean
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North Atlantic
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Gulf of Cadiz (1)
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South Atlantic
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Santos Basin (1)
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Campos Basin (1)
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Caribbean region
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West Indies
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Bahamas (1)
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Europe
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Central Europe
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Hungary (1)
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Southern Europe
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Iberian Peninsula
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Spain
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Andalusia Spain
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Granada Spain
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Guadix-Baza Basin (1)
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Betic Cordillera (1)
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Guadalquivir River (1)
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Mediterranean Sea
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West Mediterranean
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Alboran Sea (2)
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Oceania
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Micronesia
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Mariana Islands (1)
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South America
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Brazil (1)
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United States (1)
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commodities
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oil and gas fields (1)
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petroleum (4)
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geologic age
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Cenozoic
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Quaternary (2)
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Tertiary
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Neogene
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Pliocene (1)
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Primary terms
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Africa
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North Africa
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Morocco
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Rif (1)
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Asia
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Far East
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China (1)
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Malaysia (1)
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Thailand (1)
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-
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Atlantic Ocean
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North Atlantic
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Gulf of Cadiz (1)
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South Atlantic
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Santos Basin (1)
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-
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Caribbean region
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West Indies
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Bahamas (1)
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-
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Cenozoic
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Quaternary (2)
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Tertiary
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Neogene
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Pliocene (1)
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crust (1)
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Europe
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Central Europe
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Hungary (1)
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Southern Europe
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Iberian Peninsula
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Spain
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Andalusia Spain
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Granada Spain
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Guadix-Baza Basin (1)
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-
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Betic Cordillera (1)
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Guadalquivir River (1)
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faults (3)
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fractures (1)
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geomorphology (1)
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geophysical methods (2)
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ground water (1)
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Mediterranean Sea
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West Mediterranean
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Alboran Sea (2)
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mud volcanoes (1)
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Oceania
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Micronesia
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Mariana Islands (1)
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oil and gas fields (1)
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orogeny (1)
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petroleum (4)
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sedimentary rocks
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carbonate rocks (3)
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clastic rocks
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shale (2)
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sediments
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marine sediments (1)
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South America
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Brazil (1)
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tectonics
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neotectonics (2)
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salt tectonics (1)
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United States (1)
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sedimentary rocks
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sedimentary rocks
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carbonate rocks (3)
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clastic rocks
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shale (2)
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sediments
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sediments
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marine sediments (1)
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Excess permeability in the Brazil pre-Salt: Nonmatrix types, concepts, diagnostic indicators, and reservoir implications
The preservation of water-table caves at depth: Observations from subsurface data and numerical modeling
Quantitative assessment of karst pore volume in carbonate reservoirs
Pore pressure and stress regime in a thick extensional basin with active shale diapirism (western Mediterranean)
Recent shale tectonics and basin evolution of the NW Alboran Sea
Abstract The Alboran Basin is a back-arc basin in the Mediterranean developed during the Miocene by the extensional collapse of the thick continental orogen known as the Betic-Rif arc. Collision and basin formation occurred in the Neogene as a result of oblique convergence of the Eurasian and African plates. A major, curved depocenter (with sedimentary accumulations >10 km [>6 mi]) is located to the west of this basin, containing a diapiric province with overpressured shales and mud volcanoes. This study presents a detailed reconstruction of the three-dimensional geometry of the diapirs and associated minibasins in the northern margin of this major depo-center (offshore Spain). Basin formation began in the early Miocene when rapid initial subsidence of the basin floor was accompanied by massive sedimentation and burial of fine-grained sediments. Gravity-driven tectonics and continuous basement subsidence during the Miocene led to downslope migration of mobile shales, whereas the basin margins were affected by syn-sedimentary extension, and associated shale-cored thrusts occurred in the basin depocenter. Extension occurred by means of low-angle normal faults coalescing with the basement surface, which represents a master detachment surface. Thin-skinned extension during the Miocene was accompanied by punctuated diapir ascent and the advance of shale sheets. Downslope shale advance was enhanced by counterregional high-angle normal faults isolating noncylin-drical minibasins in the overburden. The Alboran Basin therefore is a useful area for analysis of the structural pattern associated with shale tectonicprocesses and a key basin for comparing the geometries and evolution of shale with structures formed in salt basins.