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Late Quaternary channel avulsions on the Danube deep-sea fan, Black Sea ArchiMer
Popescu, Irina; Lericolais, Gilles; Panin, N; Wong, H; Droz, Laurence.
Analysis of new high-resolution seismic-reflection profiles, chirp profiles and previously published sidescan data, together with piston cores on the Danube Fan provide new insight into the recent sedimentation processes in the deep northwestern Black Sea.The latest channel-levee system on the Danube Fan developed probably during the Neoeuxinian lowstand (oxygene isotope stage 2) in a semi-freshwater basin with a water level about 100 m lower than today. Sediment supplied by the Danube was transported to the deep basin through the Viteaz Canyon, which was directly connected to the leveed channel of this system on the middle slope. Channel avulsion was common in the middle fan, as indicated by four main phases of bifurcation. Each phase developed after the...
Tipo: Text Palavras-chave: High resolution seismic; Late Quaternary; Avulsion; Deep sea fan; Black Sea.
Ano: 2001 URL:
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