In the Miocene of the northern Apennines, a widespread carbonate precipitation was induced by the expulsion of methane-rich fluids. Numerous outcrops of carbonate masses share sedimentological, textural and geochemical features with present-day gas hydrate-associated carbonates. We hypotesize the contribution of paleo-gas hydrate destabilization on the base of the heavy oxygen isotope signature, the presence of distinctive sedimentary features (breccias, pervasive non-systematic fractures, soft sediment deformation), the close association between seep-carbonates and sedimentary instability and the huge dimensions of seep-carbonates bearing brecciated structures.

Possible Relationships between Seep Carbonates and Gas Hydrates in the Miocene of the Northern Apennines / Conti, Stefano; Fontana, Daniela. - In: JOURNAL OF GEOLOGICAL RESEARCH. - ISSN 1687-8833. - ELETTRONICO. - Volume 2011:(2011), pp. 1-9. [10.1155/2011/920727]

Possible Relationships between Seep Carbonates and Gas Hydrates in the Miocene of the Northern Apennines

CONTI, Stefano;FONTANA, Daniela
2011

Abstract

In the Miocene of the northern Apennines, a widespread carbonate precipitation was induced by the expulsion of methane-rich fluids. Numerous outcrops of carbonate masses share sedimentological, textural and geochemical features with present-day gas hydrate-associated carbonates. We hypotesize the contribution of paleo-gas hydrate destabilization on the base of the heavy oxygen isotope signature, the presence of distinctive sedimentary features (breccias, pervasive non-systematic fractures, soft sediment deformation), the close association between seep-carbonates and sedimentary instability and the huge dimensions of seep-carbonates bearing brecciated structures.
Volume 2011
1
9
Possible Relationships between Seep Carbonates and Gas Hydrates in the Miocene of the Northern Apennines / Conti, Stefano; Fontana, Daniela. - In: JOURNAL OF GEOLOGICAL RESEARCH. - ISSN 1687-8833. - ELETTRONICO. - Volume 2011:(2011), pp. 1-9. [10.1155/2011/920727]
Conti, Stefano; Fontana, Daniela
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/672645
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