The influence of aeolian dust in non-allophanic Andosols on Yakushima Island

Tetsuya Eguchi, Ryoji Tanaka, Yuji Maejima, Kenji Tamura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The oxygen isotope (δ18O) composition of quartz and the d(060) values of clay minerals were determined from four pedons of non-allophanic Andosols derived mainly from the Holocene volcanic ash on Yakushima Island. These soils contained considerable amounts of aerosol-sized (1-10 μm) and coarse (>53μm) quartz. The δ18O values for the aerosol-sized quartz ranged from 14.7‰ to 17.4‰, which was comparable to or slightly lower than known values for loess-derived Red and Yellow soils on Tanegashima Island located approximately 20 km east of Yakushima Island. The abundance and δ18O values of the aerosol-sized quartz indicated that non-allophanic Andosols on Yakushima Island were strongly influenced by aeolian dust. However, the presence of coarse quartz implied that granite-derived materials were also incorporated into non-allophanic Andosols. X-ray diffraction patterns for most clay minerals showed two broad peaks around 0.154 and 0.150 nm, respectively. The d(060) values confirmed that 2:1-2:1:1 clay minerals consisted of dioctahedral and trioctahedral clay minerals. Since aeolian dust contains little or no coarse quartz and trioctahedral clay minerals, the abundance of coarse quartz and trioctahedral minerals confirmed that the occurrence of non-allophanic Andosols on Yakushima was influenced by biotite-granite, in addition to aeolian dust.

Original languageEnglish
Pages (from-to)191-199
Number of pages9
JournalSoil Science and Plant Nutrition
Volume58
Issue number2
DOIs
Publication statusPublished - Apr 2012

Fingerprint

Andosol
eolian deposit
quartz
dust
clay minerals
clay mineral
aerosols
granite
aerosol
biotite
volcanic ash
pedon
loess
Andosols
X-ray diffraction
oxygen isotope
soil
isotopes
Holocene
minerals

Keywords

  • aeolian dust
  • clay minerals
  • non-allophanic Andosols
  • oxygen isotope ratio
  • Yakushima Island

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

Cite this

The influence of aeolian dust in non-allophanic Andosols on Yakushima Island. / Eguchi, Tetsuya; Tanaka, Ryoji; Maejima, Yuji; Tamura, Kenji.

In: Soil Science and Plant Nutrition, Vol. 58, No. 2, 04.2012, p. 191-199.

Research output: Contribution to journalArticle

Eguchi, Tetsuya ; Tanaka, Ryoji ; Maejima, Yuji ; Tamura, Kenji. / The influence of aeolian dust in non-allophanic Andosols on Yakushima Island. In: Soil Science and Plant Nutrition. 2012 ; Vol. 58, No. 2. pp. 191-199.
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