THE INDURATION PROCESS OF GOETHITIC OXISO LS ON PERIDOTITES IN NEW-CALEDONIA - A SINGULAR PLINTHITE-TYPE PROCESS OF INDURATION

Authors
PODWOJEWSKI P BOURDON E
Citation
P. Podwojewski et E. Bourdon, THE INDURATION PROCESS OF GOETHITIC OXISO LS ON PERIDOTITES IN NEW-CALEDONIA - A SINGULAR PLINTHITE-TYPE PROCESS OF INDURATION, Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 322(6), 1996, pp. 453-459
Citations number
17
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
322
Issue
6
Year of publication
1996
Pages
453 - 459
Database
ISI
SICI code
1251-8050(1996)322:6<453:TIPOGO>2.0.ZU;2-E
Abstract
The strong chemical weathering of peridotites in New Caledonia generat es goethitic oxisols acid a karstic relief. A rapid decrease of a wate r-table at the bottom of a doline leads to a rapid, massive and contin uous induration of iron oxide at the interface between an oxidizing an d a reducing environment. Goethite precipitates in a reticular network , pseudomorphs after plant cells and could be associated with lepidocr ocite, siderite and rhodochrosite. These hardpans could not be strictl y considered as ferricretes.