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  • 160-968; Age model; Ageprofile Datum Description; COMPCORE; Composite Core; DEPTH, sediment/rock; Eastern Basin; Joides Resolution; Leg160; Ocean Drilling Program; ODP  (1)
  • Methodik {Strukturgeologie}  (1)
  • 087-1; Age, maximum/old; Age, minimum/young; Age model; AMADEUS; DEPTH, sediment/rock; French Guiana; GeoB16224-1; Gravity corer (Kiel type); Maria S. Merian; MSM20/3; SL
  • 175-1078C; Age, maximum/old; Age, minimum/young; Age model; Benguela Current, South Atlantic Ocean; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Joides Resolution; Leg175
  • Inter-site correlation
  • 2010-2014  (2)
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  • 1
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    Experimental study of the evolution of fault gouge in layered sand–clay sequences (2010)
    Universitätsverlag Göttingen
    Details
    Publication Date: 2021-03-29
    Description: This study focuses on clay smear processes during fault gouge evolution in sand-clay sequences at depths up to 2 km. A clay-rich fault gouge can dramatically lower the fault’s permeability, and prediction of this process is therefore relevant in groundwater modelling and hydrocarbon geology (Fulljames et al. 1997, Yielding et al 1997, van der Zee et al. 2003, 2005). We constructed an ‘underwater’ sandbox to deform layered sand-clay models of 20 × 40 × 20 cm above a 70°-dipping rigid basement fault. The experiments are run completely watersaturated to allow deformation of wet clay and cohesionless sand. The basement fault moves at 20 to 120mmh−1 to a maximum offset of 60 mm. We use quartz sand with grain size between 0.1 to 0.4mm and an illite-rich clay with a water content between 28 and 55 wt.%. Water content of the clay is used to control its shear strength and state of consolidation...
    Description: conference
    Keywords: 551 ; VAE 140 ; VAE 120 ; VAE 130 ; VBB 000 ; VKA 120 ; VKB 270 ; Gesteinsdeformation {Strukturgeologie} ; Methodik {Strukturgeologie} ; Geomechanik ; Experimentelle Geologie ; Experimentelle Petrologie ; Produkte mechanischer Deformation {Petrologie} ; Verwerfung ; Störungsletten ; Experiment
    Language: German
    Type: anthologyArticle , publishedVersion
    Format: application/pdf
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    CITATION GEO-LEO
  • 2
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    (Table 1) Age control points of ODP Site 160-968 (2010)
    PANGAEA
    In:  Supplement to: Ziegler, Martin; Tuenter, Erik; Lourens, Lucas Joost (2010): The precession phase of the boreal summer monsoon as viewed from the eastern Mediterranean (ODP Site 968). Quaternary Science Reviews, 29(11-12), 1481-1490, https://doi.org/10.1016/j.quascirev.2010.03.011
    Details
    Publication Date: 2024-01-09
    Description: The astronomical timescale of the Eastern Mediterranean Plio-Pleistocene builds on tuning of sapropel layers to Northern Hemisphere summer insolation maxima. A 3000-year precession lag has become instrumental in the tuning procedure as radiocarbon dating revealed that the midpoint of the youngest sapropel, S1, in the early Holocene occurred approximately 3000 years after the insolation maximum. The origin of the time lag remains elusive, however, because sapropels are generally linked to maximum African monsoon intensities and transient climate modeling results indicate an in-phase behavior of the African monsoon relative to precession forcing. Here we present new high-resolution records of bulk sediment geochemistry and benthic foraminiferal oxygen isotopes from ODP Site 968 in the Eastern Mediterranean. We show that the 3000-year precession time lag of the sapropel midpoints is consistent with (1) the global marine isotope chronology, (2) maximum (monsoonal) precipitation conditions in the Mediterranean region and China derived from radiometrically dated speleothem records, and (3) maximum atmospheric methane concentrations in Antarctica ice cores. We show that the time lag relates to the occurrence of precession-paced North Atlantic cold events, which systematically delayed the onset of strong boreal summer monsoon intensity. Our findings may also explain a non-stationary behavior of the African monsoon over the past 3 million years due to more frequent and intensive cold events in the Late Pleistocene.
    Keywords: 160-968; Age model; Ageprofile Datum Description; COMPCORE; Composite Core; DEPTH, sediment/rock; Eastern Basin; Joides Resolution; Leg160; Ocean Drilling Program; ODP
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
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    DATA PANGAEA
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