Result: Oxygen isotope composition of natural phosphates from volcanic ash soils of the Great Rift Valley of Africa and east Java, Indonesia
Title:
Oxygen isotope composition of natural phosphates from volcanic ash soils of the Great Rift Valley of Africa and east Java, Indonesia
Authors:
Source:
Geoderma (Amsterdam). 53(1-2):111-123
Publisher Information:
Amsterdam: Elsevier, 1992.
Publication Year:
1992
Physical Description:
print, Illustration, Tableau, 2 p
Original Material:
INIST-CNRS
Subject Terms:
Agronomy, agriculture, phytopathology, Agronomie, agriculture, phytopathologie, Geology, Géologie, Sciences exactes et technologie, Exact sciences and technology, Terre, ocean, espace, Earth, ocean, space, Sciences de la terre, Earth sciences, Géochimie isotopique. Géochronologie, Isotope geochemistry. Geochronology, Géochimie isotopique, Isotope geochemistry, Formations superficielles, Surficial geology, Sols, Soils, Cendre volcanique, volcanic ash, Ceniza volcánica, Composition phosphatée, phosphate composition, Composición fosfatada, Isotope stable, stable isotopes, Isótopo estable, O 18-O 16, O-18/O-16, Origine biogène, biogenic origin, Origen biogénico, Phosphate, phosphates, Fosfato, Phosphore, phosphorus, Fósforo, Quaternaire sup, upper Quaternary, Cuaternario sup, Sol, soils, Suelo, Vallée Grand Rift, Great Rift Valley, Valle Grand Rift
Subject Geographic:
Document Type:
Academic journal
Article
File Description:
text
Language:
English
Author Affiliations:
Iwate univ., fac. agriculture, dep. agricultural chemistry, Morioka 020, Japan
ISSN:
0016-7061
Rights:
Copyright 1992 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Earth sciences
Accession Number:
edscal.5444839
Database:
PASCAL Archive
Further Information
Volcanic ash soils of the Great Rift Valley of Africa and east Java, Indonesia, are highly fertile due to an ample supply of available phosphorus. The origin of the natural phosphates has been determined from oxygen isotope analyses (δ18O) which reflect the formation temperature of the P-O bond. The δ18O values of phosphates extracted from fourteen surface, or near-surface, soil samples ranges from +10.1 to +24.8‰.