Phosphatization of basaltic rocks from Sal Island, Cape Verde Archipelago: A microtopochemical approach using synchrotron radiation X-ray fluorescence

DCM Group Author; João Pedro Botelho Veiga; T. Pereira da  Silva; M.O.  Figueiredo; P.  Chevallier

doi:10.1051/jp4:20030108

Phosphatization of basaltic rocks from Sal Island, Cape Verde Archipelago: A microtopochemical approach using synchrotron radiation X-ray fluorescence

DCM Group Author, João Pedro Botelho Veiga, T. Pereira da Silva, M.O. Figueiredo, P. Chevallier

DCM - Departamento de Ciência dos Materiais

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The geochemical processes involved in phosphorous enrichment of volcanic rocks under shallow seawater are not yet fully understood. As a contribution to this problematic, a detailed chemical characterization of phosphatized basaltic hyaloclastites assigned at Sal Island, Cape Verde archipelago, was undertaken using synchrotron radiation X-ray fluorescence. The mineralogical constitution of the samples was characterized by combining X-ray diffraction and electron microprobe data. Micromappings of metallogenetically significant components and other mobile chemical species were obtained. A positive correlation between Br plus Sr, on one side, and As plus Cr and Zn, on the other, is pointed out and brief comments are presented on the selective up-take of chemical elements in close dependence from the mineral assemblage formed by phosphatization.

Original language	English
Pages (from-to)	399-402
Journal	Journal De Physique Iv
Volume	104
Issue number	NA
DOIs	https://doi.org/10.1051/jp4:20030108
Publication status	Published - 1 Jan 2003
Event	7th International Conference on X-Ray Microscopy - Grenoble, France Duration: 28 Aug 2002 → …

Access to Document

10.1051/jp4:20030108

Cite this

@article{6db30b362b934a6bb3ff8917300f052f,

title = "Phosphatization of basaltic rocks from Sal Island, Cape Verde Archipelago: A microtopochemical approach using synchrotron radiation X-ray fluorescence",

abstract = "The geochemical processes involved in phosphorous enrichment of volcanic rocks under shallow seawater are not yet fully understood. As a contribution to this problematic, a detailed chemical characterization of phosphatized basaltic hyaloclastites assigned at Sal Island, Cape Verde archipelago, was undertaken using synchrotron radiation X-ray fluorescence. The mineralogical constitution of the samples was characterized by combining X-ray diffraction and electron microprobe data. Micromappings of metallogenetically significant components and other mobile chemical species were obtained. A positive correlation between Br plus Sr, on one side, and As plus Cr and Zn, on the other, is pointed out and brief comments are presented on the selective up-take of chemical elements in close dependence from the mineral assemblage formed by phosphatization.",

author = "{DCM Group Author} and Veiga, {Jo{\~a}o Pedro Botelho} and Silva, {T. Pereira da} and M.O. Figueiredo and P. Chevallier",

note = "sem pdf.; 7th International Conference on X-Ray Microscopy ; Conference date: 28-08-2002",

year = "2003",

month = jan,

day = "1",

doi = "10.1051/jp4:20030108",

language = "English",

volume = "104",

pages = "399--402",

journal = "Journal De Physique Iv",

issn = "1155-4339",

publisher = "Les Ulis; EDP Sciences; 1999",

number = "NA",

}

TY - JOUR

T1 - Phosphatization of basaltic rocks from Sal Island, Cape Verde Archipelago

T2 - 7th International Conference on X-Ray Microscopy

AU - DCM Group Author

AU - Veiga, João Pedro Botelho

AU - Silva, T. Pereira da

AU - Figueiredo, M.O.

AU - Chevallier, P.

N1 - sem pdf.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - The geochemical processes involved in phosphorous enrichment of volcanic rocks under shallow seawater are not yet fully understood. As a contribution to this problematic, a detailed chemical characterization of phosphatized basaltic hyaloclastites assigned at Sal Island, Cape Verde archipelago, was undertaken using synchrotron radiation X-ray fluorescence. The mineralogical constitution of the samples was characterized by combining X-ray diffraction and electron microprobe data. Micromappings of metallogenetically significant components and other mobile chemical species were obtained. A positive correlation between Br plus Sr, on one side, and As plus Cr and Zn, on the other, is pointed out and brief comments are presented on the selective up-take of chemical elements in close dependence from the mineral assemblage formed by phosphatization.

AB - The geochemical processes involved in phosphorous enrichment of volcanic rocks under shallow seawater are not yet fully understood. As a contribution to this problematic, a detailed chemical characterization of phosphatized basaltic hyaloclastites assigned at Sal Island, Cape Verde archipelago, was undertaken using synchrotron radiation X-ray fluorescence. The mineralogical constitution of the samples was characterized by combining X-ray diffraction and electron microprobe data. Micromappings of metallogenetically significant components and other mobile chemical species were obtained. A positive correlation between Br plus Sr, on one side, and As plus Cr and Zn, on the other, is pointed out and brief comments are presented on the selective up-take of chemical elements in close dependence from the mineral assemblage formed by phosphatization.

U2 - 10.1051/jp4:20030108

DO - 10.1051/jp4:20030108

M3 - Article

SN - 1155-4339

VL - 104

SP - 399

EP - 402

JO - Journal De Physique Iv

JF - Journal De Physique Iv

IS - NA

Y2 - 28 August 2002

ER -

Phosphatization of basaltic rocks from Sal Island, Cape Verde Archipelago: A microtopochemical approach using synchrotron radiation X-ray fluorescence

Abstract

Access to Document

Fingerprint

Cite this