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I. Cantarero, A. Travé, G. Alías and V. Baqués Polyphasic hydrothermal and meteoric fluid regimes during the growth of a segmented fault involving crystalline and carbonate rocks (Barcelona Plain, NE Spain) Geofluids 14

Version of Record online: 28 FEB 2013 | DOI: 10.1111/gfl.12021

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A polyphasic tectonic-fluid system of a fault that involves crystalline and carbonate rocks has been inferred from regional to thin section scale observations combined with geochemical analyses. During the Mesozoic, the southern and northern segments of the Hospital fault had independent tectonic activity and hydrothermal brines ascended through the southern segment. Low-temperature meteoric fluids dominated during the Paleogene compression. Finally, during the Neogene extension, fault tip propagation connected both segments and hydrothermal brines and later low-temperature meteoric fluids circulated.

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