Sequential extraction procedure to obtain the composition of terrigenous detritus in marine sediments

被引：2

作者：

Simon, Margit H. ^{[1
,2
,3
]}

Babin, Daniel P. ^{[3
,4
]}

Goldstein, Steven L. ^{[3
,4
]}

Cai, Merry Yue ^{[3
]}

Liu, Tanzhuo ^{[3
]}

Han, Xibin ^{[5
]}

Haws, Anne A. ^{[6
]}

Johns, Matthew ^{[3
,4
]}

Lear, Caroline ^{[7
]}

Hemming, Sidney R. ^{[3
,4
]}

机构：

[1] NORCE Norwegian Res Ctr, Bjerknes Ctr Climate Res, Bergen, Norway

[2] Univ Bergen, SFF Ctr Early Sapiens Behav SapienCE, Post Box 7805, N-5020 Bergen, Norway

[3] Columbia Univ, Lamont Doherty Earth Observ, 61 Rt 9W, Palisades, NY 10964 USA

[4] Columbia Univ, Dept Earth & Environm Sci, New York, NY USA

[5] SOA Second Inst Oceanog, Key Lab Submarine Geosci, Hangzhou, Peoples R China

[6] Boston Coll, Dept Earth & Environm Sci, Chestnut Hill, MA 02467 USA

[7] Cardiff Univ, Sch Earth & Ocean Sci, Pk Pl, Cardiff CF10 3AT, Wales

来源：

METHODSX | 2020年 / 7卷

基金：

欧洲研究理事会;

关键词：

Cation exchange wash; Sediment leaching protocol; Composition of detrital fraction;

D O I：

10.1016/j.mex.2020.100888

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The geochemical and isotopic composition of terrigenous clays from marine sediments can provide important information on the sources and pathways of sediments. In order to extract the detrital signal from bulk marine sediments, standard sediment leaching methods are commonly applied to remove carbonate and ferromanganese oxides. In comparison to most previous studies that aimed to extract the terrestrial signal from marine sediments we additionally applied a CsCl wash throughout the sample preparation Simon et al. [1] . The motivation behind that extra step, not frequently applied, is to remove ions that are gained on the clay surface due to re-adsorption of authigenic trace metals in the ocean or during the leaching procedure and thus could alter the original composition of the detrital fraction if no cation exchange was applied. Here we present an improved and detailed step-by-step leaching protocol for the extraction of the detrital fraction of bulk deep-sea sediments including commonly used buffered acetic acid and acid-reductive mix solutions including a final cation exchange wash. standard method to remove carbonate and ferromanganese oxides and Stokes settling to isolate the clay fractions additional application of cation cation exchange wash (CsCl) removal of ions that are gained on the clay surface due to adsorption of authigenic trace metals in the ocean or during the leaching procedure (C) 2020 The Author(s). Published by Elsevier B.V.

引用

页数：7

共 3 条

[1]

Bischoff J L., 1997, An 800,000-Year Paleoclimatic Record from Core OL-92, Owens Lake, Southeast California

[2] Reliable extraction of a deepwater trace metal isotope signal from Fe-Mn oxyhydroxide coatings of marine sediments [J].

Gutjahr, Marcus ;

Frank, Martin ;

Stirling, Claudine H. ;

Klemm, Veronika ;

van de Flierdt, Tina ;

Halliday, Alex N. .

CHEMICAL GEOLOGY, 2007, 242 (3-4) :351-370

[3] Development of a protocol to obtain the composition of terrigenous detritus in marine sediments -a pilot study from International Ocean Discovery Program Expedition 361 [J].

Simon, Margit H. ;

Babin, Daniel P. ;

Goldstein, Steven L. ;

Cai, Merry Yue ;

Liu, Tanzhuo ;

Han, Xibin ;

Haws, Anne A. ;

Johns, Matthew ;

Lear, Caroline ;

Hemming, Sidney R. .

CHEMICAL GEOLOGY, 2020, 535

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