Beryllium-10 data from redeposited late miocene pelagic sediments (East Java, Indonesia)

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Abstract

10Be measurements of samples from a (hemi)pelagic sequence of Middle Miocene to Lower Pliocene age (Java, Indonesia) allow estimating the rate of sedimentation and the timespan during which deposition occurred.

Large variations of 10Be values between adjacent samples can be satisfactorily ascribed to short term variations of the rate of sedimentation, with in addition downslope mass transport of sedimentary units that had previously been deposited higher on the submarine slope.

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Cited by (1)

  • Beryllium-10 in Australasian tektites: Constraints on the location of the source crater

    2004, Geochimica et Cosmochimica Acta
    Citation Excerpt :

    Again, higher 10Be concentrations in paleosols are apparent, and within layers, two-to-three fold variations of 10Be concentrations are common over depth ranges of less than 10 m. The bottom panel of Figure 3 shows results from De Boer et al. (1987), who analyzed 10Be in “Late Miocene to Early Pliocene (6–3 Ma BP) pelagic carbonates exposed along the Solo River, north of the city of Ngawi, East Java (Indonesia)” (7°S, 111°E). Samples are described as marly pelagic fine-grained mixed carbonate/clayey sediments and as coming from heights ranging from 0 to 320 m. Those authors remarked that, “On a smaller scale the 10Be data show strong deviations, up to a factor of 1.7 between adjacent samples.”

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