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ZHANG Cheng-jun, CAO Jie, LEI Yan-bin, SHANG Hua-ming. The Chronological Characteristics of Bosten Lake Holocene Sediment Environment in Xinjiang, China[J]. Acta Sedimentologica Sinica, 2004, 22(3): 494-499.
Citation: ZHANG Cheng-jun, CAO Jie, LEI Yan-bin, SHANG Hua-ming. The Chronological Characteristics of Bosten Lake Holocene Sediment Environment in Xinjiang, China[J]. Acta Sedimentologica Sinica, 2004, 22(3): 494-499.

The Chronological Characteristics of Bosten Lake Holocene Sediment Environment in Xinjiang, China

  • Received Date: 2003-10-16
  • Rev Recd Date: 2003-01-02
  • Publish Date: 2004-09-10
  • Cs and 14C AMS were analyzed for the Bosten Lake sediment cores in Xinjiang, arid China. In the BST-4 core 137 Cs section, there are obvious 1986 Chemobyl nucleus accident peak and 1975, 1963 peaks, which are important age characteristics for the Bosten lake sediment. The sedimentation rate, which was average 0.13±0.01 g/cm 2 .a, was stable in the Bosten Lake by analysing the mass depth and ages. It is very similar to that from the 14C age, 0.13±0.03cm/a for BSTC-1 core and 0.12±0.05cm/a for xb46 core, in Bosten Lake after middle Holocene and show that the depositional environment was stable and the 14C ages were accurate. From the 14C age of the samples in Bosten Lake, it can be calibrated the old carbon effect produced by the hard water in the lakes and old carbon effect can lead to the old age for the 14C age in analysing the lake organic matters in sediments. We obtained the result of about 650a old effect in Bosten lake from the 14C age and the sedimentation rate by the 137 Cs data.
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  • Received:  2003-10-16
  • Revised:  2003-01-02
  • Published:  2004-09-10

The Chronological Characteristics of Bosten Lake Holocene Sediment Environment in Xinjiang, China

Abstract: Cs and 14C AMS were analyzed for the Bosten Lake sediment cores in Xinjiang, arid China. In the BST-4 core 137 Cs section, there are obvious 1986 Chemobyl nucleus accident peak and 1975, 1963 peaks, which are important age characteristics for the Bosten lake sediment. The sedimentation rate, which was average 0.13±0.01 g/cm 2 .a, was stable in the Bosten Lake by analysing the mass depth and ages. It is very similar to that from the 14C age, 0.13±0.03cm/a for BSTC-1 core and 0.12±0.05cm/a for xb46 core, in Bosten Lake after middle Holocene and show that the depositional environment was stable and the 14C ages were accurate. From the 14C age of the samples in Bosten Lake, it can be calibrated the old carbon effect produced by the hard water in the lakes and old carbon effect can lead to the old age for the 14C age in analysing the lake organic matters in sediments. We obtained the result of about 650a old effect in Bosten lake from the 14C age and the sedimentation rate by the 137 Cs data.

ZHANG Cheng-jun, CAO Jie, LEI Yan-bin, SHANG Hua-ming. The Chronological Characteristics of Bosten Lake Holocene Sediment Environment in Xinjiang, China[J]. Acta Sedimentologica Sinica, 2004, 22(3): 494-499.
Citation: ZHANG Cheng-jun, CAO Jie, LEI Yan-bin, SHANG Hua-ming. The Chronological Characteristics of Bosten Lake Holocene Sediment Environment in Xinjiang, China[J]. Acta Sedimentologica Sinica, 2004, 22(3): 494-499.
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