Cristin-resultat-ID: 2067248
Sist endret: 21. juni 2023, 10:09
NVI-rapporteringsår: 2022
Resultat
Vitenskapelig artikkel
2022

Grain-size analysis of the Late Pleistocene sediments in the Corinth Rift: insights into strait-influenced hydrodynamics and provenance of an active rift basin

Bidragsytere:
  • Wenjun Kang
  • Shunli Li
  • Rob Gawthorpe
  • Mary Ford
  • Richard E. Ll. Collier
  • Xinghe Yu
  • mfl.

Tidsskrift

Geological Society Special Publication
ISSN 0305-8719
e-ISSN 2041-4927
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2022
Publisert online: 2022
Volum: 523
Hefte: 1
Sider: 255 - 277

Importkilder

Scopus-ID: 2-s2.0-85153781964

Beskrivelse Beskrivelse

Tittel

Grain-size analysis of the Late Pleistocene sediments in the Corinth Rift: insights into strait-influenced hydrodynamics and provenance of an active rift basin

Sammendrag

Grain-size analysis of the sediments in borehole M0079A, which is located in the Corinth Rift, was used to explore hydrodynamic conditions and provenance in the Late Pleistcene Corinth Rift. Grain-size populations that were sensitive to the sedimentary environments were characterized by frequency distribution, particle size-standard deviation, and probability cumulative curves. Our results indicate the grain-size population component in the range 0.15-0.25 μm may be used as a sensitive proxy for hyperpycnal flows, which have commonly been triggered by river floods from the southern margin of the rift since ca. 0.593-0.613 Ma. The high-density plumes derived from the longer rivers of the southern rift that were prevalent before ca. 0.593-0.613 Ma. When sediment is supplied as hemipelagic deposition, the proportion of the total grain-size population that is in the 0.3-0.5 μm range becomes an index for suspension fall-out deposits. The core shows coarser sediments during the marine periods and this may be linked to the current circulation related to the Ishtmia Strait opening. The study thus illustrates how the establishment of interbasinal straits can influence the details of sedimentary hydrodynamics in the deep- water axis of an adjacent depocenter.

Bidragsytere

Wenjun Kang

  • Tilknyttet:
    Forfatter
    ved China University of Geosciences

Shunli Li

  • Tilknyttet:
    Forfatter
    ved China University of Geosciences

Robert Leslie Gawthorpe

Bidragsyterens navn vises på dette resultatet som Rob Gawthorpe
  • Tilknyttet:
    Forfatter
    ved Institutt for geovitenskap ved Universitetet i Bergen

Mary Ford

  • Tilknyttet:
    Forfatter
    ved Université de Lorraine

Richard E. Ll. Collier

  • Tilknyttet:
    Forfatter
    ved University of Leeds
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