Application of the Weibull extrapolation to 137Cs geochronology in Tokyo Bay and Ise Bay, Japan

被引：12
|
作者：
Lu, XQ [1 ]
机构：
[1] Nagoya Univ, Div Earth & Environm Sci, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan
来源：
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2004年 / 73卷 / 02期
关键词：
Weibull distribution; cesium-137; excess lead-210; sedimentation rate; geochronology;
D O I：
10.1016/j.jenvrad.2003.08.009
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Considerable doubt surrounds the nature of processes by which Cs-137 is deposited in marine sediments, leading to a situation where Cs-137 geochronology cannot be always applied suitably. Based on extrapolation with Weibull distribution, the maximum concentration of Cs-137 derived from asymptotic values for cumulative specific inventory was used to re-establish Cs-137 geochronology, instead of original Cs-137 profiles. Corresponding dating results for cores in Tokyo Bay and Ise Bay, Japan, by means of this new method, are in much closer agreement with those calculated from Pb-210 method than the previous method. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：169 / 181
页数：13
相关论文
共 50 条
  • [1] Recent sedimentation rates derived from 210Pb and 137Cs methods in Ise Bay, Japan
    Lu, XQ
    Matsumoto, E
    [J]. ESTUARINE COASTAL AND SHELF SCIENCE, 2005, 65 (1-2) : 83 - 93
  • [2] 239+240Pu and 137Cs in Sediments from Tokyo Bay: Distribution and Inventory
    M. Yamada
    Y. Nagaya
    [J]. Journal of Radioanalytical and Nuclear Chemistry, 2000, 245 : 273 - 279
  • [3] 239+240Pu and 137Cs in sediments from Tokyo Bay:: Distribution and inventory
    Yamada, M
    Nagaya, Y
    [J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2000, 245 (02) : 273 - 279
  • [4] Sediment environmental capacity of 137Cs in Daya Bay
    Zhang J.
    Chen J.
    Xu J.
    Li Y.
    Huang N.
    [J]. Frontiers of Environmental Science & Engineering in China, 2007, 1 (2): : 202 - 206
  • [5] Distribution of region-specific background Secchi depth in Tokyo Bay and Ise Bay, Japan
    Wang, Feng
    Umehara, Akira
    Nakai, Satoshi
    Nishijima, Wataru
    [J]. ECOLOGICAL INDICATORS, 2019, 98 : 397 - 408
  • [6] Recent 137Cs deposition in sediments of Admiralty Bay, Antarctica
    Sanders, Christian J.
    Santos, Isaac R.
    Patchineelam, Sambasiva R.
    Schaefer, Carlos
    Silva-Filho, Emmanoel V.
    [J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2010, 101 (05) : 421 - 424
  • [7] Implications of excess 210Pb and 137Cs in sediment cores from Mikawa Bay, Japan
    Lu Xueqiang
    Matsumoto, Eiji
    [J]. JOURNAL OF ENVIRONMENTAL SCIENCES, 2009, 21 (05) : 707 - 712
  • [8] Implications of excess 210Pb and 137Cs in sediment cores from Mikawa Bay, Japan
    MATSUMOTO Eiji
    [J]. Journal of Environmental Sciences, 2009, (05) : 707 - 712
  • [9] 210Pb and 137Cs in sediments from Sagami Bay, Japan:: sedimentation rates and inventories
    Kato, Y
    Kitazato, H
    Shimanaga, M
    Nakatsuka, T
    Shirayama, Y
    Masuzawa, T
    [J]. PROGRESS IN OCEANOGRAPHY, 2003, 57 (01) : 77 - 95
  • [10] Levels of 137Cs in muddy sediments on the seabed in the Bay of Cadiz (Spain).: Part II.: Model of vertical migration of 137Cs
    Ligero, RA
    Barrera, M
    Casas-Ruiz, M
    [J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2005, 80 (01) : 87 - 103
12345