Selenium and other trace element in phosphorites A comparison between those of the Bayovar-Sechura and other provenances

被引：20

作者：

Bech, J. ^{[1
]}

Suarez, M.

Reverter, F. ^{[1
]}

Tume, P. ^{[2
]}

Sanchez, P. ^{[1
]}

Roca, N.

Lansac, A.

机构：

[1] Univ Barcelona, Fac Biol, Dept Stat, E-08028 Barcelona, Spain

[2] Univ Catolica Santisima Concepcion, Fac Ingn, Concepcion, Chile

来源：

JOURNAL OF GEOCHEMICAL EXPLORATION | 2010年 / 107卷 / 02期

关键词：

Phosphorite; Selenium; Trace elements; Chemical analysis; Statistical analysis; Bayovar Sechura; Peru; Provenance; PHOSPHATE ROCKS; FERTILIZERS;

D O I：

10.1016/j.gexplo.2010.04.002

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Data of trace element composition of phosphorites are scarce and incomplete Phosphorites of different origins can vary substantially in trace element contents In this paper 20 trace element concentrations of 35 sample phosphorites are reported The geographical provenance is Bayovar-Sechura (Peru) Khouribga Youssoufia and Boucraa (Morocco) Gafsa (Tunisia) Florida (USA) Idaho and Phosphoria Formation (USA) North Carolina (USA) Algeria Israel Senegal Syria and Togo Aqua regia extracts were used to estimate the pseudototal values following standard procedures (ISO 11466 2002) and measured by ICP AES and ICP-MS The ratio of medians of trace elements from Sechura versus other provenances decreases in the following sequence Co(9)> Mo (3 5)> Mn (2 75)> As (1 65)> Sn (1 21)> Sr (1 16)> Cr Cu Ni Pb (1 02)> Tl (086)> Se (067)> U (0 53)> Cd Th (0 5)> V (0 44)> Sb (0 38)> Zn (0 29)> Ag (0 25)> B (0 24) Using multivariate methods we have seen that there are three main clusters a first group with Phosphona Formation Idaho Youssoufia and Senegal samples a second group with Sechura phosphorites enriched in Co and Mo and the third consisting of the remaining samples The highest trace element enrichment factors in decreasing order are Cd 386 (Idaho USA)> Ag 785 (Idaho USA)> Se 73 3 (Youssoufia Morocco)> U 465 (Israel)> Mo 43 (Sechura II Peru)> Cr 41 (Tobene Senegal)> B 116 (Khouribga KIIC Morocco)> Sr 104 (Israel)> Zn 102 (Idaho USA) Mo enrichment is peculiar to Phosphorites of Sechura The Permian phosphorites from Idaho and Phosphona Formation accumulate Cd Ag Se Zn Sb V As Tl and Cu The depleted trace element assemblages of Sechura phosphorites are different from the other provenance phosphorites Selenium and B normality is the main difference between Sechura phosphorites versus the other provenance The whole of the normal enriched and depleted trace element in phosphorites both individually and in assemblages can be a useful tool such as a discriminating fingerprint in the research of the origin of the phosphorites (c) 2010 Elsevier B V All rights reserved

引用

页码：146 / 160

页数：15

共 28 条

[1]

Alloway J., 1995, HEAVY METALS SOILS, V2nd

[2]

Altschuler Z.S., 1980, MARINE PHOSPHORITES, P19, DOI [10.2110/pec.80.29.0019, DOI 10.2110/PEC.80.29.0019]

[3]

[Anonymous], 1980, SEPM SOC SEDIMENTARY, DOI DOI 10.2110/PEC.80.29.0031

[4]

[Anonymous], 2009, R PROJ STAT COMP

[5]

BECH J, 2009, J GEOCHEM EXPLOR, DOI DOI 10.1016/J.GEXPL.2009.08.004

[6] ARSENIC, MOLYBDENUM, SELENIUM, AND TUNGSTEN CONTENTS OF FERTILIZERS AND PHOSPHATE ROCKS [J].

CHARTER, RA ;

TABATABAI, MA ;

SCHAFER, JW .

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 1995, 26 (17-18) :3051-3062

[7]

Chien SH, 2004, FAO FERTILIZER PLANT, V13, P73

[8] The pollution of marine sediments by trace elements in the coastal region of Togo caused by dumping of cadmium-rich phosphorite tailing into the sea [J].

Gnandi, K ;

Tobschall, HJ .

ENVIRONMENTAL GEOLOGY, 1999, 38 (01) :13-24

[9]

GOWER J., 1996, BIPLOTS

[10] THE NORTH-AMERICAN SHALE COMPOSITE - ITS COMPILATION, MAJOR AND TRACE-ELEMENT CHARACTERISTICS [J].

GROMET, LP ;

DYMEK, RF ;

HASKIN, LA ;

KOROTEV, RL .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1984, 48 (12) :2469-2482

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