Measurement of 129I in ferromanganese crust with AMS

被引：3

作者：

Ji Lihong ^{[1
]}

Liu Guangshan ^{[1
]}

Chen Zhigang ^{[1
]}

Huang Yipu ^{[1
]}

Xing Na ^{[1
]}

Jiang Shan ^{[2
]}

He Ming ^{[2
]}

机构：

[1] Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361102, Peoples R China

[2] China Inst Atom Energy, Beijing 102413, Peoples R China

来源：

ACTA OCEANOLOGICA SINICA | 2015年 / 34卷 / 10期

基金：

中国国家自然科学基金;

关键词：

ferromanganese crust; AgI; I-129/I-127; ratio; accelerator mass spectrometry; I-129-dating; CARRIER-FREE IODINE; LOW-LEVEL I-129; PORE WATERS; SHIMOKITA PENINSULA; NATURAL I-129; SOURCE AGES; ACCELERATOR; BRINES; CL-36; I-129/I-127;

D O I：

10.1007/s13131-015-0718-4

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

In the present study, the analytical method for (129)iodine (I-129) in ferromanganese crusts is developed and (129)iodine/(127)iodine (I-129/I-127) ratio in ferromanganese crusts is measured by the accelerator mass spectrometry (AMS). The developed method is applied to analyze I-129/I-127 ratio in two ferromanganese crusts MP5D44 and CXD08-1 collected from the Mid-Pacific Ocean. The results show that I-129/I-127 ratio in MP5D44 and CXD08-1 crusts varies from 7x10(-14) to 1.27x10(-12), with the lowest value falling on the detection limit level of AMS reported by previous literatures. For the depth distribution of I-129/I-127, it is found that both MP5D44 and CXD08-1 crusts have two growth generations, and the I-129/I-127 profiles in two generations all displayed an approximate exponential decay. According to the I-129/I-127 ratio, the generate age of bottom layer of MP5D44 and CXD08-1 was estimated to be 54.77 and 69.69 Ma, respectively.

引用

页码：31 / 35

页数：5

共 31 条

[1]

Behrens H., 1982, Environmental migration of long-lived radionuclides, P27

[2] Analysis of low-level 129I in brine using accelerator mass spectrometry [J].

Chen, Ning ;

Hou, Xiaolin ;

Zhou, Weijian ;

Fan, Yukun ;

Liu, Qi .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2014, 299 (03) :1965-1971

[3] NATURAL I-129 AS AN ENVIRONMENTAL TRACER [J].

FABRYKAMARTIN, J ;

BENTLEY, H ;

ELMORE, D ;

AIREY, PL .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1985, 49 (02) :337-347

[4] APPLICATIONS OF I-129 AND CL-36 IN HYDROLOGY [J].

FABRYKAMARTIN, J ;

DAVIS, SN ;

ELMORE, D .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1987, 29 (1-2) :361-371

[5] I-129 AND CL-36 CONCENTRATIONS IN WATERS OF THE EASTERN CLEAR LAKE AREA, CALIFORNIA - RESIDENCE TIMES AND SOURCE AGES OF HYDROTHERMAL FLUIDS [J].

FEHN, U ;

TULLAIFITZPATRICK, S ;

KUBIK, PW ;

SHARMA, P ;

TENG, RTD ;

GOVE, HE ;

ELMORE, D .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1992, 56 (05) :2069-2079

[6] Dating of pore waters with 129I:: Relevance for the origin of marine gas hydrates [J].

Fehn, U ;

Snyder, G ;

Egeberg, PK .

SCIENCE, 2000, 289 (5488) :2332-2335

[7] Iodine as a tracer of organic material:: 129I results from gas hydrate systems and fore arc fluids [J].

Fehn, U. ;

Snyder, G. T. ;

Muramatsu, Y. .

JOURNAL OF GEOCHEMICAL EXPLORATION, 2007, 95 (1-3) :66-80

[8] The initial 129I/I ratio and the presence of 'old' iodine in continental margins [J].

Fehn, U. ;

Moran, J. E. ;

Snyder, G. T. ;

Muramatsu, Y. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 259 (01) :496-502

[9] DATING OF OIL-FIELD BRINES USING I-129 [J].

FEHN, U ;

TULLAIFITZPATRICK, S ;

TENG, RTD ;

GOVE, HE ;

KUBIK, PW ;

SHARMA, P ;

ELMORE, D .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 52 (3-4) :446-450

[10] DETERMINATION OF I-129 IN HEAVY RESIDUES OF 2 CRUDE OILS [J].

FEHN, U ;

TULLAI, S ;

TENG, RTD ;

ELMORE, D ;

KUBIK, PW .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1987, 29 (1-2) :380-382

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