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Resumen del producto
Prol-Ledesma, R.M., M.A., Torres-Vera, R., Rodolfo-Metalpa, C., Ángeles, C., Lechuga Deveze, R.E., Villanueva-Estrada, C.J., Robinson, E., Shumilin & C., Canet
(2012).
High heat flow and ocean acidification in nascent spreading centers in the Northern Gulf of California.
The Deep-Sea and Sub-Seafllor Frontiers Conference.
Barcelona, Spain, España, marzo 11 - 14, 2012,
23.
High heat flow and ocean acidification in nascent spreading centers in the Northern Gulf of California
Rosa María Prol-Ledesma, Marco Antonio Torres-Vera, Riccardo Rodolfo-Metalpa, Catalina Ángeles, Carlos Lechuga Deveze, Ruth Ester Villanueva-Estrada, Carlos Jorge Robinson, Evgueni Shumilin y Carlos Canet
Active sea floor spreading phenomena has been documented only in three (Einsele et al., 1980; Lizarralde et al., 2007) of the 8 tectonically active basins located in the Gulf of California (GoC), they define the tectonic setting prevailing in the region, and are determinant for major and minor elements balances (Edmond et al., 1982). No geophysical or geochemical evidence has been reported about active seafloor spreading in the northern GoC and the northernmost Wagner and Consag basins have been considered as unlikely to contain active seafloor spreading processes (Persaud et al., 2003); however, seismic modelling might indicate mantle upwelling under the Wagner Basin (Wang et al., 2009). We present heat flow and pH measurements, seismicity data, detailed bathymetry, gas composition, profiler sections and organic matter maturation data that provide supporting evidence to infer the occurrence of active spreading at the Wagner and Consag basins.
Palabras clave: Northern Gulf of California; Heat flow: acidification; radon-222
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