Seep-carbonates are important indicators of submarine fluid expulsion and dewatering of sediments along convergent margins and accretionary prisms. In the Northern Apennine compressional wedge, seep-carbonates usually occur in pelitic successions from different settings of the middle late Miocene foreland basin system. In Serravallian foredeep deposits of the Salsomaggiore area, seep carbonates cemented and/or encrusted coarse-grained sandstones and conglomerates. Fluid expulsion, strictly related to variable intensities in tectonic stresses, generated seep-carbonate facies and sediment instabilities, depending on the position of the fluid pathway feeders within the Salsomaggiore Ridge, a middle–late Miocene intra-basinal high, at the leading edge of the Apenninic orogenic wedge. This site provides a unique opportunity for analyzing depositional characters, and the three-dimensional distribution and evolution of a seepage system in a thrust-related anticline. The resulting evolutionary model shares common features with recent ridges in other accretionary wedges. In this model a strict relationship between tectonics, seepage and sediment instability during a major tectonic phase is outlined.

Seep-carbonates in a thrust-related anticline at the leading edge of an orogenic wedge: The case of the middle–late Miocene Salsomaggiore Ridge (Northern Apennines, Italy.) / CONTI S; ARTONI A.; PIOLA G. - In: SEDIMENTARY GEOLOGY. - ISSN 0037-0738. - 199(2007), pp. 233-251. [10.1016/j.sedgeo.2007.01.022]

Seep-carbonates in a thrust-related anticline at the leading edge of an orogenic wedge: The case of the middle–late Miocene Salsomaggiore Ridge (Northern Apennines, Italy.)

ARTONI, Andrea;
2007

Abstract

Seep-carbonates are important indicators of submarine fluid expulsion and dewatering of sediments along convergent margins and accretionary prisms. In the Northern Apennine compressional wedge, seep-carbonates usually occur in pelitic successions from different settings of the middle late Miocene foreland basin system. In Serravallian foredeep deposits of the Salsomaggiore area, seep carbonates cemented and/or encrusted coarse-grained sandstones and conglomerates. Fluid expulsion, strictly related to variable intensities in tectonic stresses, generated seep-carbonate facies and sediment instabilities, depending on the position of the fluid pathway feeders within the Salsomaggiore Ridge, a middle–late Miocene intra-basinal high, at the leading edge of the Apenninic orogenic wedge. This site provides a unique opportunity for analyzing depositional characters, and the three-dimensional distribution and evolution of a seepage system in a thrust-related anticline. The resulting evolutionary model shares common features with recent ridges in other accretionary wedges. In this model a strict relationship between tectonics, seepage and sediment instability during a major tectonic phase is outlined.
Seep-carbonates in a thrust-related anticline at the leading edge of an orogenic wedge: The case of the middle–late Miocene Salsomaggiore Ridge (Northern Apennines, Italy.) / CONTI S; ARTONI A.; PIOLA G. - In: SEDIMENTARY GEOLOGY. - ISSN 0037-0738. - 199(2007), pp. 233-251. [10.1016/j.sedgeo.2007.01.022]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/1630321
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