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首页> 外文期刊>Radiation Protection Dosimetry >ESTIMATION OF SEDIMENTATION RATE IN THE MIDDLE AND SOUTH ADRIATIC SEA USING ~(137)Cs
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ESTIMATION OF SEDIMENTATION RATE IN THE MIDDLE AND SOUTH ADRIATIC SEA USING ~(137)Cs

机译：用〜（137）Cs估算中亚和南亚海域的沉积速率

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摘要

~(137)Cs activity concentrations were studied in the sediment profiles collected at five locations in the Middle and South Adriatic. In the sediment profiles collected from the South Adriatic Pit, the deepest part of the Adriatic Sea, two ~(137)Cs peaks were identified. The peak in the deeper layer was attributed to the period of intensive atmospheric nuclear weapon tests (early 1960s), and the other to the Chernobyl nuclear accident (1986). Those peaks could be used to estimate sedimentation rates by relating them to the respective time periods. Grain-size analysis showed no changes in vertical distribution through the depth of the sediment profile, and these results indicate uniform sedimentation, as is expected in deeper marine environments. It was not possible to identify respective peaks on more shallow locations due to disturbance of the seabed either by trawlers (locations Palagruza and Jabuka) or by river sediment (location Albania). The highest sedimentation rates were found in Albania (～4 mm y~(-1)) and Jabuka (3.1 mm y~(-1)). For Palagruza, the sedimentation rate was estimated to be 1.8 mm y~(-1), similar to the South Adriatic Pit where the sedimentation rate was estimated to be 1.8 ± 0.5 mm y~(-1). Low sedimentation rates found for the Middle and South Adriatic Sea are consistent with previously reported results for the rest of the Mediterranean.
机译：在中亚得里亚海和南亚得里亚海的五个位置收集的沉积物剖面中研究了〜（137）Cs活性浓度。在从南亚得里亚海深部亚得里亚海坑收集的沉积物剖面中，发现了两个〜（137）Cs峰。更深层的峰值归因于密集的大气核武器试验时期（1960年代初），另一个归因于切尔诺贝利核事故（1986年）。通过将这些峰值与各个时间段相关联，可以将这些峰值用于估算沉积速率。粒度分析表明，在整个沉积物剖面中垂直分布没有变化，这些结果表明沉积是均匀的，这在更深的海洋环境中是可以预期的。由于拖网渔船（帕拉格鲁扎和贾布卡的位置）或河底沉积物（阿尔巴尼亚的位置）对海床的干扰，不可能在较浅的位置确定相应的峰值。沉积率最高的是阿尔巴尼亚（〜4 mm y〜（-1））和贾布卡（3.1 mm y〜（-1））。对于帕拉格鲁萨，沉积速率估计为1.8 mm y〜（-1），类似于南亚得里亚海坑，沉积速率估计为1.8±0.5 mm y〜（-1）。中亚得里亚海和南亚得里亚海的低沉积速率与先前报道的地中海其他地区的沉积速率一致。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.102-111|共10页
  • 作者

    Branko Petrinec; Zdenko Franic; Nikolina Ilijanic; Slobodan Miko; Marko Strok; Borut Smodis;

  • 作者单位

    Radiation Protection Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, PO Box 291, HR-10001 Zagreb, Croatia;

    Radiation Protection Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, PO Box 291, HR-10001 Zagreb, Croatia;

    Department for Mineral Resources, Croatian Geological Survey, Sachsova 2, HR-10000 Zagreb, Croatia;

    Department for Mineral Resources, Croatian Geological Survey, Sachsova 2, HR-10000 Zagreb, Croatia;

    Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia;

    Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
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