DETRITAL ORIGIN FOR SMECTITE IN SOILS AND SEDIMENTS FROM THE COASTAL-PLAIN OF ARIAKE BAY, NORTHERN KYUSHU, JAPAN

Authors
MIZOTA C LONGSTAFFE FJ
Citation
C. Mizota et Fj. Longstaffe, DETRITAL ORIGIN FOR SMECTITE IN SOILS AND SEDIMENTS FROM THE COASTAL-PLAIN OF ARIAKE BAY, NORTHERN KYUSHU, JAPAN, Geoderma, 73(1-2), 1996, pp. 125-130
Citations number
24
Categorie Soggetti
Agriculture Soil Science
Journal title
Geoderma → ACNP
ISSN journal
00167061
Volume
73
Issue
1-2
Year of publication
1996
Pages
125 - 130
Database
ISI
SICI code
0016-7061(1996)73:1-2<125:DOFSIS>2.0.ZU;2-#
Abstract
The delta(18)O values of smectite (+ 14.2 to + 20.5 parts per thousand ) from soils and sediments along the coastal plain of Ariake Bay, nort hern Kyushu, Japan, suggest that the smectites are detrital in origin. Samples of detrital smectite from the catchment of major rivers enter ing Ariake Bay have similar delta(18)O values (+ 18.2 to + 22.8 parts per thousand). The oxygen-isotope data rule out neoformation at low te mperatures during interaction with seawater as a possible origin for m ost of this smectite.