环境磁学样品干燥过程中的磁性效应

陈满荣; 俞立中; 韩晓非

ISSN 1000-0550 CN 62-1038/P

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环境磁学样品干燥过程中的磁性效应

陈满荣, 俞立中, 韩晓非

文章导航 > 沉积学报 > 2001 > 19(4): 630-636

陈满荣, 俞立中, 韩晓非. 环境磁学样品干燥过程中的磁性效应[J]. 沉积学报, 2001, 19(4): 630-636.

引用本文:

陈满荣, 俞立中, 韩晓非. 环境磁学样品干燥过程中的磁性效应[J]. 沉积学报, 2001, 19(4): 630-636.

CHEN Man rong, YU Li zhong, HAN Xiao fei. Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments[J]. Acta Sedimentologica Sinica, 2001, 19(4): 630-636.

Citation:

CHEN Man rong, YU Li zhong, HAN Xiao fei. Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments[J]. Acta Sedimentologica Sinica, 2001, 19(4): 630-636.

陈满荣, 俞立中, 韩晓非. 环境磁学样品干燥过程中的磁性效应[J]. 沉积学报, 2001, 19(4): 630-636.

引用本文:

陈满荣, 俞立中, 韩晓非. 环境磁学样品干燥过程中的磁性效应[J]. 沉积学报, 2001, 19(4): 630-636.

Citation:

环境磁学样品干燥过程中的磁性效应

1.
扬州大学江苏扬州 225009;
2.
华东师范大学地理系上海 200062

基金项目: 国家自然科学基金(批准号:49871068)

详细信息

作者简介:
陈满荣,男,1961 年出生,副教授,自然地理学

中图分类号: X141

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文章访问数: 544
HTML全文浏览量: 39
PDF下载量: 542
被引次数: 0

Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments

1.
Yangzhou University, Yangzhou Jiangsu 225009;
2.
East China Normal University, Shanghai 200062

摘要

摘要: 对长江口南岸潮滩沉积物柱样和表层样品的烘干、风干和冻干法处理,然后进行系统磁性测量和水分、有机质的测定。实验结果得知:以冻干法为参照,烘干和风干方法对样品的磁参数的稳定性影响很小,但研究质地粘重样品时,应避免采用风干方法或校正风干样含水量质量后计算相关的磁参数。有机质的含量与主要磁参数成正相关,它对磁参数的影响很小
- 环境磁学 /
- 烘干 /
- 风干 /
- 冻干 /
- 磁性效应
Abstract: Magnetic effects in sediment of Yangtze River estuary tidal flat is studied in laboratory by different drying treatments. Three treatments, including oven-drying, air-drying and lyophilization are applied in the core（total length：21 cm, sampled from high tidal-flat）and tidal flat surface（0 ~ 5 cm）sediment samples（high, middle and low tidal flat）, and then the magnetic properties, water and total organic matter contents has been measured systematically. Results show that oven-drying, air-drying and lyophilization treatment processes de affect the most of magnetic minerals . The SIRM—χ crossplot of the core samples shows linearly significant correlation, the upper part sub-samples of the core have high value of SIRM andχ , the bottom part have low value of SIRM andχ. According to F_300mT, "S_{- 20mT} and"S_{- 100mT}, ferrimagnetic minerals dominate the magnetic properties in the Yangtze River estuary tidal flat sediments. The particlesize of whole core become finer from bottom to upper sub-samples. The differences of the three samples treatments are insignificant, according to type of magnetic minerals, consistence of dominated magnetic minerals, concentration of magnetic minerals and particle size, in the whole core sub-samples and its variations. The oven-drying is still effective sample treatment, and the lyophilization is the best sample drying method of the three. Under the general condition, the effect of oven-drying and air-drying samples to magnetic change, compare with lyophilization, is so little that it does not result in magnetic parameters wrong interpretation. However, for clay samples, airdrying samples will cause much difference in the value of magnetic parameters, thus its air-drying water contents after magnetic measurement should be avoided or calibrated. Another result shows that organic matter contents are positively correlated with main magnetic parameters. This study has some limits because of only test for the tidal flat sediment samples, so if do some further deduction on this topic, more studies on various sediments and soiis sampies are necessary.
- environmentai magnetism /
- oven-drying /
- air-drying /
- iyophiiization /
- magnetic effects

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参考文献(1)

[1]

1.汤普森 R;奥尔德费尔德 F 环境磁学 1986

2.Dearing J Environmental Magnetic Susceptibility Using the Barting ton MS2 System 1994

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4.孙知明;胡守云;马醒华现代湖泊沉积物中磁性矿物的研究及其环境意义[期刊论文]-地球物理学报 1996(02)

5.McGraw-Hill Encyclopedia of Science & technology

6.卢升高;俞劲炎土壤氧化铁的磁参数及其应用[期刊论文]-土壤通报 1999(04)

7.Lizhong Yu Environmental Application of Mineral Magnetic Measure ment: Towards A Quantitative Approach 1989

8.中国土壤学会农业化学专业委员会土壤农业化学常规分析方法 1983

9.Thompson R;Morton D J Magnetic susceptibility and particle-size distribution in recent sediments of the Loch Lomond drainage basin Scotland 1979

10.Hilton J Normalized magnetic parameters and their applicability to palaeomagnetism and environ mental magnetism 1986

11.张卫国;俞立中;许羽环境磁学研究的简介 1995(03)

12.俞立中环境磁学在城市污染研究中的应用 1999(04)

13.俞劲炎;卢升高土壤磁学 1991

14.俞立中;张卫国利用磁信息研究潮滩重金属污染的探讨 1993(05)

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环境磁学样品干燥过程中的磁性效应

1. 扬州大学江苏扬州 225009;

2. 华东师范大学地理系上海 200062

基金项目: 国家自然科学基金(批准号:49871068)

作者简介:
陈满荣,男,1961 年出生,副教授,自然地理学

收稿日期: 2000-12-06
修回日期: 2001-03-21
刊出日期: 2001-12-10

中图分类号: X141

关键词:

环境磁学 /

烘干 /

风干 /

冻干 /

磁性效应

摘要: 对长江口南岸潮滩沉积物柱样和表层样品的烘干、风干和冻干法处理,然后进行系统磁性测量和水分、有机质的测定。实验结果得知:以冻干法为参照,烘干和风干方法对样品的磁参数的稳定性影响很小,但研究质地粘重样品时,应避免采用风干方法或校正风干样含水量质量后计算相关的磁参数。有机质的含量与主要磁参数成正相关,它对磁参数的影响很小

English Abstract

Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments

1. Yangzhou University, Yangzhou Jiangsu 225009;

2. East China Normal University, Shanghai 200062

Received Date: 2000-12-06
Rev Recd Date: 2001-03-21
Publish Date: 2001-12-10

Keywords:

Abstract: Magnetic effects in sediment of Yangtze River estuary tidal flat is studied in laboratory by different drying treatments. Three treatments, including oven-drying, air-drying and lyophilization are applied in the core（total length：21 cm, sampled from high tidal-flat）and tidal flat surface（0 ~ 5 cm）sediment samples（high, middle and low tidal flat）, and then the magnetic properties, water and total organic matter contents has been measured systematically. Results show that oven-drying, air-drying and lyophilization treatment processes de affect the most of magnetic minerals . The SIRM—χ crossplot of the core samples shows linearly significant correlation, the upper part sub-samples of the core have high value of SIRM andχ , the bottom part have low value of SIRM andχ. According to F_300mT, "S_{- 20mT} and"S_{- 100mT}, ferrimagnetic minerals dominate the magnetic properties in the Yangtze River estuary tidal flat sediments. The particlesize of whole core become finer from bottom to upper sub-samples. The differences of the three samples treatments are insignificant, according to type of magnetic minerals, consistence of dominated magnetic minerals, concentration of magnetic minerals and particle size, in the whole core sub-samples and its variations. The oven-drying is still effective sample treatment, and the lyophilization is the best sample drying method of the three. Under the general condition, the effect of oven-drying and air-drying samples to magnetic change, compare with lyophilization, is so little that it does not result in magnetic parameters wrong interpretation. However, for clay samples, airdrying samples will cause much difference in the value of magnetic parameters, thus its air-drying water contents after magnetic measurement should be avoided or calibrated. Another result shows that organic matter contents are positively correlated with main magnetic parameters. This study has some limits because of only test for the tidal flat sediment samples, so if do some further deduction on this topic, more studies on various sediments and soiis sampies are necessary.

陈满荣, 俞立中, 韩晓非. 环境磁学样品干燥过程中的磁性效应[J]. 沉积学报, 2001, 19(4): 630-636.

引用本文:

陈满荣, 俞立中, 韩晓非. 环境磁学样品干燥过程中的磁性效应[J]. 沉积学报, 2001, 19(4): 630-636.

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环境磁学样品干燥过程中的磁性效应

作者简介:
陈满荣,男,1961 年出生,副教授,自然地理学

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Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments

计量

目录

环境磁学样品干燥过程中的磁性效应

1. 扬州大学江苏扬州 225009;

2. 华东师范大学地理系上海 200062

作者简介:
陈满荣,男,1961 年出生,副教授,自然地理学

English Abstract

Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments

1. Yangzhou University, Yangzhou Jiangsu 225009;

2. East China Normal University, Shanghai 200062

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环境磁学样品干燥过程中的磁性效应

作者简介: 陈满荣,男,1961 年出生,副教授,自然地理学

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Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments

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出版历程

目录

环境磁学样品干燥过程中的磁性效应

1. 扬州大学 江苏扬州 225009; 2. 华东师范大学地理系 上海 200062

作者简介: 陈满荣,男,1961 年出生,副教授,自然地理学

English Abstract

Environmental Magnetism Research on the Magnetic Effects by Different Drying Processes to Tidal Flat Sediments

1. Yangzhou University, Yangzhou Jiangsu 225009; 2. East China Normal University, Shanghai 200062

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
陈满荣,男,1961 年出生,副教授,自然地理学

1. 扬州大学江苏扬州 225009;

2. 华东师范大学地理系上海 200062

作者简介:
陈满荣,男,1961 年出生,副教授,自然地理学

1. Yangzhou University, Yangzhou Jiangsu 225009;

2. East China Normal University, Shanghai 200062