Foraminiferal ecozones, a high resolution proxy for the late Quaternary biochronology in the central Mediterranean Sea

Capotondi, Lucilla; Borsetti, Anna Maria; Morigi, Caterina

doi:10.1016/s0025-3227(98)00079-6

Cited by 91 publications

(56 citation statements)

References 13 publications

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“…In brief, the age models of SST time series considered in this study were established mainly by accelerator mass spectrometry (AMS) 14 C determinations. The age model of the core AD91-17 is additionally based on correlation with oxygen isotopic records (Capotondi et al 1999;Siani et al 2001). The mean temporal resolution of each record varies between 64 and 627 years (Table 1).…”

Section: Methodsmentioning

confidence: 99%

Holocene climate variability as derived from alkenone sea surface temperature and coupled ocean-atmosphere model experiments

et al. 2004

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Holocene climate modes are identified by the statistical analysis of reconstructed sea surface temperatures (SSTs) from the tropical and North Atlantic regions. The leading mode of Holocene SST variability in the tropical region indicates a rapid warming from the early to mid Holocene followed by a relatively weak warming during the late Holocene. The dominant mode of the North Atlantic region SST captures the transition from relatively warm (cold) conditions in the eastern North Atlantic and the western Mediterranean Sea (the northern Red Sea) to relatively cold (warm) conditions in these regions from the early to late Holocene. This pattern of Holocene SST variability resembles the signature of the Arctic Oscillation/North Atlantic Oscillation (AO/NAO). The second mode of both tropical and North Atlantic regions captures a warming towards the mid Holocene and a subsequent cooling. The dominant modes of Holocene SST variability emphasize enhanced variability around 2300 and 1000 years. The leading mode of the coupled tropical-North Atlantic Holocene SST variability shows that an increase of tropical SST is accompanied by a decrease of SST in the eastern North Atlantic. An analogy with the instrumental period as well as the analysis of a long-term integration of a coupled ocean-atmosphere general circulation model suggest that the AO/NAO is one dominant mode of climate variability at millennial time scales.

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Section: Methodsmentioning

confidence: 99%

Holocene climate variability as derived from alkenone sea surface temperature and coupled ocean-atmosphere model experiments

et al. 2004

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“…Globoturborotalita tenella were counted and plotted together because of the similarity of their ecological characteristics (Capotondi et al, 1999). Furthermore, the species Globigerinita glutinata includes the morphotypes with and without bulla.…”

Section: Taxonomical Conceptmentioning

confidence: 99%

Late Quaternary palaeoenvironmental changes in the Aegean Sea: interrelations and interactions between North and South Aegean Sea.

2016

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“…Acoustically-transparent deposits lay at the base of the scarp implying that evacuation was not complete after failure. based on published literature and framed in a well defined seismic stratigraphic context (Jorissen et al, 1993;Asioli 1996Asioli , 1999Asioli , 2001Trincardi et al, 1996;Capotondi et al, 1999;Ariztegui et al, 2000).…”

Section: Cores and Stratigraphymentioning

confidence: 99%

Evidence of slope instability in the Southwestern Adriatic Margin

Minisini

Trincardi

Asioli

2006

Nat. Hazards Earth Syst. Sci.

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Abstract. The Southwestern Adriatic Margin (SAM) shows evidence of widespread failure events that generated slide scars up to 10 km wide and extensive slide deposits with run out distances greater than 50 km. Chirp-sonar profiles, side-scan sonar mosaics, multibeam bathymetry and sediment cores document that the entire slope area underwent repeated failures along a stretch of 150 km and that masstransport deposits, covering an area of 3320 km 2 , are highly variable ranging from blocky slides to turbidites, and lay on the lower slope and in the basin. The SAM slope between 300-700 m is impacted by southward bottom currents shaping sediment drifts (partly affected by failure) and areas of dominant erosion of the seafloor. When slide deposits occur in areas swept by bottom currents their fresh appearence and their location at seafloor may give the misleading impression of a very young age. Seismic-stratigraphic correlation of these deposits to the basin floor, however, allow a more reliable age estimate through sediment coring of the post-slide unit. Multiple buried failed masses overlap each other in the lower slope and below the basin floor; the most widespread of these mass-transport deposits occurred during the MIS 2-glacial interval on a combined area of 2670 km 2 . Displacements affecting Holocene deposits suggest recent failure events during or after the last phases of the last postglacial eustatic rise. Differences in sediment accumulation rates at the base or within the sediment drifts and presence of downlap surfaces along the slope and further in the basin may provide one or multiple potential weak layers above which widespread collapses take place. Neotectonic activity and seismicity, together with the presence of a steep slope, represent additional elements conducive to sediment instability and failure along the SAM. Evidence of large areas still prone to failure provides elements of tsunamogenic hazard.

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Foraminiferal ecozones, a high resolution proxy for the late Quaternary biochronology in the central Mediterranean Sea

Cited by 91 publications

References 13 publications

Holocene climate variability as derived from alkenone sea surface temperature and coupled ocean-atmosphere model experiments

Holocene climate variability as derived from alkenone sea surface temperature and coupled ocean-atmosphere model experiments

Late Quaternary palaeoenvironmental changes in the Aegean Sea: interrelations and interactions between North and South Aegean Sea.

Evidence of slope instability in the Southwestern Adriatic Margin

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