File:Messinian salinity crisis 6 mya stage - last canal.jpg
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editDescriptionMessinian salinity crisis 6 mya stage - last canal.jpg |
Català: Darrera connexió entre l'Atlàntic i la Mediterrània que va sobreviure a l'aixecament de l'Arc de Gibraltar fa 6 milions d'anys. Aquest canal va permetre l'entrada d'aigües atlàntiques que compensaven el dèficit hídric de la Mediterrània que rep menys aigua dels rius de la que evapora la seva superfície. Al mateix temps, aquest flux entrant d'aigua va produir prou erosió perquè el canal es mantingués malgrat el continuu aixecament de la serralada bètica. El tancament de la resta de canals de connexió va causar la hipersalinitat de les aigües mediterrànies i l'inici de la Crisi Salina del Messinià. La vinyeta mostra l'aixecament de l'Arc de Gibraltar entre la zona bètica i la del Rif. També mostra com una part de l'escorça es subsumeix en el mantell mentre part del magma més fos puja per esquerdes en l'escorça.
Interpretació artística realitzada per Pau Bahí amb la supervisió científica de Daniel García Castellanos, geofísic de l'Institut de Ciències de la Terra Jaume Almera (CSIC)
Español: Último canal de conexión entre el Atlántico y Mediterráneo que sobrevivió el levantamiento del Arco de Gibraltar hace 6 millones de años. Ese canal permitió la entrada de aguas atlánticas que compensaran el déficit hídrico del Mediterráneo, que recibe menos agua de los ríos de la que evapora en su superficie. A la vez, ese flujo de agua entrante produjo suficiente erosión como para que el canal perviviera pese al continuo levantamiento de la cordillera bética. La clausura de los demás canales de conexión causó la hipersalinidad de las aguas mediterráneas y el inicio de la Crisis Salina Mesiniense. La viñeta muestra el alzamiento del Arco de Gibraltar entre la zona bética y el Rif. También muestra como una parte de la corteza es subsumida en el manto terrestre y una parte del magma fundido sube por las grietas de la corteza.
Interpretación artística realizada por Pau Bahí bajo la supervisión científica de Daniel García Castellanos, geofísico del Instituto de Ciencias de la Tierra Jaume Almera (CSIC)
English: Last canal connecting the Atlantic and Mediterranean which survived the uprising of the Gibraltar Arc 6 million years ago. The canal enabled the entry of Atlantic waters to offset the Mediterranean water deficit, which receives less river water that evaporates from its surface. At the same time, the flow of incoming water erosion produced enough to keep the channel despite the continued rise of the Betic Cordillera. The closure of the other connecting channels caused hypersaline Mediterranean water and the beginning of the Messinian salinity crisis. The inset box shows the rise of the Gibraltar Arc area between the Betic and Rif. Also shown as a part of the crust is subsumed in the Earth's mantle and a portion of molten magma rises through cracks in the crust.
Artistic interpretation by Pau Bahí under the scientific supervision of Daniel Garcia Castellanos, geophysicist at the Institute of Earth Sciences Jaume Almera (CSIC) |
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Source | Own work |
Author | Paubahi |
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from an art & design school thanks to a collaboration between Llotja and Amical Viquipèdia.
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The Messinian salinity crisis in the Mediterranean sea
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current | 19:57, 1 July 2012 | 3,246 × 2,196 (2 MB) | Paubahi (talk | contribs) |
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- File:Insercioaixecament.jpg (file redirect)
- File:Insetaixecament.jpg
- File:Messinian salinity crisis 5.3 mya stage - flooding.jpg
- File:Messinian salinity crisis 5.96 mya stage - drying.jpg
- File:Messinian salinity crisis 6.5 mya stage.jpg
- File:Messinian salinity crisis 6 mya stage - last canal.jpg
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Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS3 Windows |
File change date and time | 10:55, 27 June 2012 |
Color space | sRGB |
Image width | 3,246 px |
Image height | 2,196 px |
Date and time of digitizing | 12:34, 27 June 2012 |
Date metadata was last modified | 12:55, 27 June 2012 |