Off-shelf sedimentary record of recurring global sea-level changes during the Plio-Pleistocene: evidence from the cyclic fills of exhumed slope systems in central Italy

Celma, Claudio Di; Cantalamessa, Gino

doi:10.1144/jgs2012-041

Cited by 12 publications

(9 citation statements)

References 20 publications

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“…1B: COLALONGO et al, 1979;CANTALAMESSA et al, 1986;NANNI et al, 1986;CENTAMORE et al, , 2009ORI et al, 1991;CANTALAMESSA & DI CELMA, 2004;CELLO et al, 2009;MICARELLI et al, in press). Vertical and lateral facies variations suggest an intra-basin palaeoen-vironmental differentiation, induced by local tectonics and sea-level fluctuations (CANTALAMESSA & DI CELMA, 2004;CELLO et al, 2009;DI CELMA et al, 2010;DI CEL MA, 2011;DI CELMA & CANTALAMESSA, 2012). The Pliocene -Pleistocene marine succession (Fig.…”

Section: Geological Settingmentioning

confidence: 96%

Hypogean Geology of the Camerano Site (Marches, Italy)

Bizzarri¹,

Baldanza²,

Luccioni³

et al. 2013

Geol Cro

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Section: Geological Settingmentioning

confidence: 96%

Hypogean Geology of the Camerano Site (Marches, Italy)

Bizzarri¹,

Baldanza²,

Luccioni³

et al. 2013

Geol Cro

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“…Similarly, Pickering et al (1999) demonstrated that accumulation of mid-Pleistocene terrigenous turbidites off Japan correlated with glacial epochs at eccentricity time scales. Finally, early Pleistocene Italian turbidites accumulated in response to obliquity-driven glacioeustatic sea-level oscillations (Cantalamessa et al, 2009;Di Celma, 2011;Di Celma & Cantalamessa, 2012).…”

Section: Introductionmentioning

confidence: 99%

Orbital forcing in turbidite accumulation during the Eocene greenhouse interval

Payros

Martínez‐Braceras

2014

Sedimentology

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The influence of astronomically driven short-term climate change (Milankovitch cycles) on deep-marine turbidite systems is not well-known, particularly in the case of long-term greenhouse intervals with no significant glacioeustatic sea-level fluctuations. This study, carried out at the Gorrondatxe section (Global Stratotype Section and Point for the base of the Lutetian Stage in the western Pyrenees), demonstrates that the characteristics of lower-middle Eocene fan-fringe/basin-plain turbiditic and pelagic deposits varied in line with orbitally forced fluctuations in seasonal rainfall, runoff and terrigenous input to the sea. Reduced turbiditic activity during the formation of pelagic limy precessional hemicouplets indicates subdued seasonality and low terrigenous input. Conversely, turbidity currents were more frequent, had greater energy and were more voluminous during the formation of pelagic marly hemicouplets, suggesting precessional hemicycles with strong seasonality and heavy summer rainfall. These differences at precessional time scales were enhanced at maximum eccentricity because turbiditic activity was most intense when boreal summer occurred at perihelion (i.e. maximum seasonality) but declined when it occurred at aphelion. At minimum eccentricity, with relatively weak seasonality throughout one (or more than one) precessional cycle (>21 kyr), turbiditic activity remained relatively low. The pattern observed at the Gorrondatxe fan-fringe/basin-plain succession implies that the orbitally forced environmental changes must also have affected the inner and middle parts of the submarine fan. The astronomical influence on terrigenous sediment input also determined the changing characteristics of the pelagic sedimentation. Thus, terrigenous sediment contribution to pelagic sedimentation fluctuated by a factor of five during opposite precessional situations at maximum eccentricity, whereas there was almost no fluctuation at minimum eccentricity.

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“…, 2009). Through the integration of a robust chronostratigraphic framework with a high‐resolution sequence stratigraphic interpretation of the observed physical stratigraphy, Di Celma & Cantalamessa (2012) demonstrate that the erosionally bounded fourth‐order elements encountered within the Monte Ascensione, Castignano, Offida and Colle Montarone slope systems can be correlated with the global oxygen isotope record, which is used as a proxy for early Pleistocene global ice volume/sea‐level change. This link between the fourth‐order elements and the global oxygen isotope curve is critical, inasmuch as it is unlikely to be fortuitous and demonstrates that the sediment influx to the heads of these slope systems was regulated by recurring cycles of obliquity‐driven (41 ka duration) glacio‐eustatic sea‐level change and, therefore, that cyclical phases of sedimentary activity recorded within the turbidite systems cannot be ascribed to regional tectonic pulses or local autocyclic sedimentary processes.…”

Section: Discussionmentioning

confidence: 99%

Stratigraphic organization and predictability of mixed coarse‐grained and fine‐grained successions in an upper slope Pleistocene turbidite system of the Peri‐Adriatic basin

2012

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The early Pleistocene clastic succession of the Peri‐Adriatic basin, eastern central Italy, records the filling of a series of piggyback sub‐basins that formed in response to the development of the eastward‐verging Apennine fold‐thrust belt. During the Gelasian (2·588 to 1·806 Ma), large volumes of Apennine‐derived sediments were routed to these basins through a number of slope turbidite systems. Using a comprehensive outcrop‐based dataset, the current study documents the depositional processes, stratigraphic organization, foraminiferal age and palaeodepth, and stratigraphic evolution of one of these systems exposed in the surroundings of the Castignano village. Analysis of foraminiferal assemblages consistently indicates Gelasian deposition in upper bathyal water depths. Sediments exposed in the study area can be broken into seven main lithofacies, reflecting specific gravity‐induced depositional elements and slope background deposition: (i) clast‐supported conglomerates (conglomerate channel‐fill); (ii) amalgamated sandstones (late stage sandstone channel‐fill); (iii) medium to thick‐bedded tabular sandstones (frontal splay sandstones); (iv) thin to thick‐bedded channelized sandstones (sandy channel‐fill); (v) medium to very thin‐bedded sandstones and mudstones (levée‐overbank deposits); (vi) pebbly mudstones and chaotic beds (mudstone‐rich mass‐transport deposits); and (vii) massive mudstones (hemipelagic deposits). Individual lithofacies combine vertically and laterally to form decametre‐scale, disconformably bounded, fining‐upward lithofacies successions that, in turn, stack to form slope valley fills bounded by deeply incised erosion surfaces. A hierarchical approach to the physical stratigraphy of the slope system indicates that it has evolved through multiple cycles of waxing then waning flow energy at multiple scales and that its packaging can be described in terms of a six‐fold hierarchy of architectural elements and bounding surfaces. In this scheme, the whole system (sixth‐order element) is comprised of three distinct fifth‐order stratigraphic cycles (valley fills), which define sixth‐order initiation, growth and retreat phases of slope deposition, respectively; they are separated by discrete periods of entrenchment that generated erosional valleys interpreted to record fifth‐order initiation phases. Backfilling of individual valleys progressed through deposition of two vertically stacked lithofacies successions (fourth‐order elements), which record fifth‐order growth and retreat phases. Fourth‐order initiation phases are represented by erosional surfaces bounding lithofacies successions. The component lithofacies (third‐order element) record fourth‐order growth and retreat phases. Map trends of erosional valleys and palaeocurrent indicators converge to indicate that the sea floor bathymetric expression of a developing thrust‐related anticline markedly influenced the downslope transport direction of gravity currents and was sufficient to cause a major diversion of the turbidite system around ...

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Off-shelf sedimentary record of recurring global sea-level changes during the Plio-Pleistocene: evidence from the cyclic fills of exhumed slope systems in central Italy

Cited by 12 publications

References 20 publications

Hypogean Geology of the Camerano Site (Marches, Italy)

Hypogean Geology of the Camerano Site (Marches, Italy)

Orbital forcing in turbidite accumulation during the Eocene greenhouse interval

Stratigraphic organization and predictability of mixed coarse‐grained and fine‐grained successions in an upper slope Pleistocene turbidite system of the Peri‐Adriatic basin

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