An early Miocene arc-tholeiitic magmatic dike event from the Alboran Sea — Evidence for precollisional subduction and back-arc crustal extension in the westernmost Mediterranean

1986 ◽  
Vol 75 (1) ◽  
pp. 219-234 ◽  
Author(s):  
R. L. Torres-Roldan ◽  
G. Poli ◽  
A. Peccerillo
Keyword(s):  
Early Miocene ◽  
Crustal Extension ◽  
Alboran Sea ◽  
Back Arc ◽  
Alborán Sea

scholarly journals A tribute to Marie Tharp: Mapping the seafloor of back-arc basins, mid-ocean ridges, continental margins and plate boundaries

2020 ◽  
Author(s):  
Eulàlia Gràcia ◽  
Sara Martínez Loriente ◽  
Susana Diez ◽  
Laura Gómez de la Peña ◽  
Cristina S. Serra ◽  
...  
Keyword(s):  
Strike Slip ◽  
Plate Boundaries ◽  
Alboran Sea ◽  
Gulf Of Cadiz ◽  
Fault Systems ◽  
Ocean Ridges ◽  
Moderate Seismicity ◽  
Gulf Of Cádiz ◽  
Back Arc ◽  
Alborán Sea

<p>Marie Tharp (1920-2006) was a pioneer of modern oceanography. She was an American geologist and oceanographic cartographer who, together with his husband Bruce Heezen, generated the first bathymetric map of the Atlantic Ocean floor. Tharp's work revealed the detailed topography and geological landscape of the seafloor. Her work revealed the presence of a continuous rift valley along the Mid-Atlantic Ridge axis, causing a paradigm in earth sciences that led to the acceptance of plate tectonics and continental drift theories. Piecing maps together in the late 1940s and early 1950s, Marie and his partner Bruce Heezen discovered the 75.000 km underwater ridge bounding around the globe. By this finding, they laid the conclusion from geophysical data that the seafloor spreads from mid-ocean ridges and that continents are in motion with respect to one another—a revolutionary geological theory at that time. Many years later, satellite images demonstrate that Tharp’s maps were accurate. In this contribution, we focus on detailed bathymetric maps collected from year 1992 to today, which include bathymetric maps from diverse parts of the world. For instance, we will show a) Back-arc basins (i.e. the Bransfield Basin, Antarctica; and the North Fiji Basin, SW Pacific); b) Mid-ocean ridges and fracture zones (i.e. the MAR at the South of Azores, the MAR at the Oceanographer-Hayes, and the St. Paul Fracture Zone at the Equator), and c) Active tectonic structures from the Gulf of Cadiz and Alboran Sea, located at the Africa-Eurasia plate boundary (Gibraltar Arc). Regarding this last area, we will characterize the seafloor expression of the fault systems, as well as the subsurface structure of the faults in the Gulf of Cadiz and Alboran Sea. This zone is characterized by a moderate seismicity, mainly reverse and strike-slip focal mechanisms; although large historical (AD1755, AD1829) and instrumental earthquakes or large/great magnitude also occurred, such as the earthquakes of 1969, 1994, 2004 and 2016. In addition, the Gulf of Cadiz-Alboran Sea area is compartmentalized in different crustal domains, bounded by active strike-slip fault systems. We adopted a multi-scale approach, including morphological analysis of shipboard multibeam bathymetry, near-bottom bathymetry obtained with Autonomous Underwater Vehicles (AUVs) at a resolution of 1-2 m, and medium to deep penetration multi-channel seismic (MCS) data. Finally, we will also show a couple of videos from recent marine cruises in the Gibraltar Arc (SHAKE-2015 and INSIGHT-2018), both using state-of-the-art high-resolution marine technologies.</p>

Checklist of benthic marine Cyanoprokariota of Chafarinas Islands (Alboran Sea, Western Mediterranean). Catálogo de cianoprocariotas bentónicas marinas de las Islas Chafarinas (Mar de Alborán, Mediterráneo Occidental)

2013 ◽  
Vol 38 ◽  
pp. 182-186 ◽  
Author(s):  
Julio De la Rosa Álamos ◽  
María Altamirano ◽  
Marianela Zanolla
Keyword(s):  
Marine Algae ◽  
Western Mediterranean ◽  
Alboran Sea ◽  
Palabras Clave ◽  
Alborán Sea

Catálogo de cianoprocariotas bentónicas marinas de las Islas Chafarinas (Mar de Alborán, Mediterráneo Occidental) Keywords: Chafarinas Islands, Cyanoprokariota, marine algae, Alboran Sea. Palabras clave: Islas Chafarinas, Cyanoprokariotas, algas marinas, Mar de Alborán.

Neogene evolution of the Campo de Dalias and the surrounding offshore areas - (Northeastern Alboran Sea)

1993 ◽  
Vol 6 (4) ◽  
pp. 255-270 ◽  
Author(s):  
José Rodriguez-Fernandez ◽  
Antonio J. Martin-Penela
Keyword(s):  
Alboran Sea ◽  
Alborán Sea

scholarly journals Forecasting the SST Space-time variability of the Alboran Sea with genetic algorithms

2000 ◽  
Vol 27 (17) ◽  
pp. 2709-2712 ◽  
Author(s):  
Alberto Álvarez ◽  
Cristóbal López ◽  
Margalida Riera ◽  
Emilio Hernández-García ◽  
Joaquín Tintoré
Keyword(s):  
Genetic Algorithms ◽  
Space Time ◽  
Time Variability ◽  
Alboran Sea ◽  
Alborán Sea

First record of Sphoeroides spengleri (Osteichthyes: Tetraodontidae) in the Mediterranean Sea

2004 ◽  
Vol 84 (5) ◽  
pp. 1089-1090 ◽  
Author(s):  
J.A. Reina-Hervás ◽  
J.E. García Raso ◽  
M.E. Manjón-Cabeza
Keyword(s):  
Alien Species ◽  
Mediterranean Sea ◽  
First Record ◽  
Western Mediterranean ◽  
Alboran Sea ◽  
Total Length ◽  
The Mediterranean ◽  
Alborán Sea

The capture of a specimen of Sphoeroides spengleri (Osteichthyes: Tetraodontidae), 17 December 2000 and 29·7 mm total length, from the Málaga coast (Alborán Sea, western Mediterranean) represents the first record of a new alien species for Mediterranean waters.

The tributary valley systems of the Almeria Canyon (Alboran Sea, SW Mediterranean): Sedimentary architecture

2006 ◽  
Vol 226 (3-4) ◽  
pp. 207-223 ◽  
Author(s):  
Marga García ◽  
Belén Alonso ◽  
Gemma Ercilla ◽  
Eulàlia Gràcia
Keyword(s):  
Alboran Sea ◽  
Sedimentary Architecture ◽  
Alborán Sea
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