Detrital origin for smectite in soils and sediments from the coastal plain of Ariake Bay, northern Kyushu, Japan
Detrital origin for smectite in soils and sediments from the coastal plain of Ariake Bay, northern Kyushu, Japan
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DOI：
10.1016/0016-7061(96)00049-3
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发表时间：
1996-09
期刊：
影响因子：
6.1
通讯作者：
C. Mizota;F. Longstaffe
中科院分区：
文献类型：
--
作者：
C. Mizota;F. Longstaffe
日本九州北部有明湾沿海平原土壤和沉积物中蒙脱石的 δ18O 值（+ 14.2 至 + 20.5%o）表明蒙脱石起源于碎屑。来自进入有明湾的主要河流流域的碎屑蒙皂石样本具有相似的 δ18O 值（+ 18.2 至 + 22.8%o）。氧同位素数据排除了与海水相互作用过程中低温下的新形成可能是大多数蒙皂石的来源。
The δ18O values of smectite (+ 14.2 to + 20.5%o) from soils and sediments along the coastal plain of Ariake Bay, northern Kyushu, Japan, suggest that the smectites are detrital in origin. Samples of detrital smectite from the catchment of major rivers entering Ariake Bay have similar δ18O values (+ 18.2 to + 22.8%o). The oxygen-isotope data rule out neoformation at low temperatures during interaction with seawater as a possible origin for most of this smectite.