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Article Navigation >  Acta Sedimentologica Sinica  > 1997  >  15(3): 145-149

Zhu Xiaodong, Shi Bingwen, Zhu Dakui. A New Sediment Grain Size Index Designed for Sedimentological Study of Microfossils—— With Demonstrations of Foraminifera in Jiangsu Coast, China[J]. Acta Sedimentologica Sinica, 1997, 15(3): 145-149.
Citation: Zhu Xiaodong, Shi Bingwen, Zhu Dakui. A New Sediment Grain Size Index Designed for Sedimentological Study of Microfossils—— With Demonstrations of Foraminifera in Jiangsu Coast, China[J]. Acta Sedimentologica Sinica, 1997, 15(3): 145-149.
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A New Sediment Grain Size Index Designed for Sedimentological Study of Microfossils—— With Demonstrations of Foraminifera in Jiangsu Coast, China

  • State Pilot Laboratory of Coast and Island Exploitation Nanjing University,Nanjing 210093

  • Received Date: 1996-06-12
  • In this paper, a new sediment grain size index, gsi, is proposed as a supplementary time- savingtool of sedimentological analysis of micro- fossils. The gsi is determined according to the grain size rankand composition of sediment at the time of sampling for microfossils. For example, gsis for clay, silt andfine sand are 1. 0, 2. 0 and 3. 0, respctivly, for silty clay, clayey silt are 1. 2 and 1. 8. The reliability ofthis semi- quantitative index system has been confirmed by using correlation analysis of actural Md datagained through conventional instrument analysis of 20sediment samples with their corresiponding gsi da-ta.The correlation coefficient is as high as 0. 9312. As demonstration for practical use of gsi, sedimnto-logical foraminiferal analysis was prformed on 90 samples from Yangtze River mouth and Jiangsu coastalzone where taphonomic processes of foraminiferal taphocoeenoses are important. The demonstration in-dicated the gsi is useful and time- saving for sedimentological study on the base of microfossil.
  • [1] Thomas R D K. Taphonomy ecology' s loss is sedimentology' sgain. PALAIOS, 1986, 1( 3): 206.
    [2] Murray J W, Stur-rock S and Weston J. Suspended load transpo rt of foraminifer-al tests in a tide and wave- swept sea. J Foram. Res, 1982,12( 1): 51 ～ 65.
    [3] 任美锷,张忍顺. 潮汐汊道的若干问题. 海洋学报, 6( 3): 352～ 367.
    [4] 朱晓东.长江河口三角洲区有孔虫沉降速度试验. 海洋地质与第四纪地质, 1990, 10( 3): 47 ～ 58.
    [5] 朱晓东. 苏北沿岸有孔虫壳体破损的一种半定量描述统计方法. 微体古生物学报, 1996, 13( 9): 295 ～ 302.
    [6] 朱大奎,傅命佐. 江苏岸餐辐射沙洲的初步研究. 江苏海岸带调查论文集,海洋出版社, 1986, 28 ～ 33.
    [7] 朱大奎,安芷生. 江苏岸外辐射状沙洲的形成演变. 任美锷教授八十华诞地理论文集. 南京大学出版社, 1993, 142 ～ 145.
    [8] 朱晓东. 死态学与古死态学—— 研究生物死亡后与环境关系的科学. 自然杂志, 1993, ( 1): 30 ～ 33.
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  • Received:  1996-06-12

A New Sediment Grain Size Index Designed for Sedimentological Study of Microfossils—— With Demonstrations of Foraminifera in Jiangsu Coast, China

  • State Pilot Laboratory of Coast and Island Exploitation Nanjing University,Nanjing 210093
  • Received Date: 1996-06-12

Abstract: In this paper, a new sediment grain size index, gsi, is proposed as a supplementary time- savingtool of sedimentological analysis of micro- fossils. The gsi is determined according to the grain size rankand composition of sediment at the time of sampling for microfossils. For example, gsis for clay, silt andfine sand are 1. 0, 2. 0 and 3. 0, respctivly, for silty clay, clayey silt are 1. 2 and 1. 8. The reliability ofthis semi- quantitative index system has been confirmed by using correlation analysis of actural Md datagained through conventional instrument analysis of 20sediment samples with their corresiponding gsi da-ta.The correlation coefficient is as high as 0. 9312. As demonstration for practical use of gsi, sedimnto-logical foraminiferal analysis was prformed on 90 samples from Yangtze River mouth and Jiangsu coastalzone where taphonomic processes of foraminiferal taphocoeenoses are important. The demonstration in-dicated the gsi is useful and time- saving for sedimentological study on the base of microfossil.

Zhu Xiaodong, Shi Bingwen, Zhu Dakui. A New Sediment Grain Size Index Designed for Sedimentological Study of Microfossils—— With Demonstrations of Foraminifera in Jiangsu Coast, China[J]. Acta Sedimentologica Sinica, 1997, 15(3): 145-149.
Citation: Zhu Xiaodong, Shi Bingwen, Zhu Dakui. A New Sediment Grain Size Index Designed for Sedimentological Study of Microfossils—— With Demonstrations of Foraminifera in Jiangsu Coast, China[J]. Acta Sedimentologica Sinica, 1997, 15(3): 145-149.
shu

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