Abstract The C-isotope composition of a Miocene carbonate succession from the Latium-Abruzzi sector of the Central Apennines was studied in order to evaluate the influence of local vs. global factors in changing ?13C. We propose that the Oligo-Miocene igneous activity of the Western Mediterranean and the closure of the Indo-Pacific connection influenced climate change and Mediterranean circulation. The huge Aquitanian-Burdigalian volcanic activity during the formation of the Ligurian-Provençal Basin, with related increase in atmospheric CO2, may have accelerated weathering and hydrological cycling of nutrient inputs in coastal environments. The closure of the Indo-Pacific connection altered the circulation by changing and reversing the western exchange flow. The existence of warm and seasonally humid climate favoured the development of estuarine circulation, which was to lead to a dramatic increase in productivity in the euphotic zone.

Miocene C-isotope signature from the central Apennine successions (Italy): Monterey versus regional controlling factors / Brandano, Marco; M., Brilli; Corda, Laura; Lustrino, Michele. - In: TERRA NOVA. - ISSN 0954-4879. - STAMPA. - 22:(2010), pp. 125-130. [10.1111/j.1365-3121.2010.00925.x]

Miocene C-isotope signature from the central Apennine successions (Italy): Monterey versus regional controlling factors

BRANDANO, Marco;CORDA, Laura;LUSTRINO, Michele
2010

Abstract

Abstract The C-isotope composition of a Miocene carbonate succession from the Latium-Abruzzi sector of the Central Apennines was studied in order to evaluate the influence of local vs. global factors in changing ?13C. We propose that the Oligo-Miocene igneous activity of the Western Mediterranean and the closure of the Indo-Pacific connection influenced climate change and Mediterranean circulation. The huge Aquitanian-Burdigalian volcanic activity during the formation of the Ligurian-Provençal Basin, with related increase in atmospheric CO2, may have accelerated weathering and hydrological cycling of nutrient inputs in coastal environments. The closure of the Indo-Pacific connection altered the circulation by changing and reversing the western exchange flow. The existence of warm and seasonally humid climate favoured the development of estuarine circulation, which was to lead to a dramatic increase in productivity in the euphotic zone.
2010
01 Pubblicazione su rivista::01a Articolo in rivista
Miocene C-isotope signature from the central Apennine successions (Italy): Monterey versus regional controlling factors / Brandano, Marco; M., Brilli; Corda, Laura; Lustrino, Michele. - In: TERRA NOVA. - ISSN 0954-4879. - STAMPA. - 22:(2010), pp. 125-130. [10.1111/j.1365-3121.2010.00925.x]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/229959
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