Eolian Dust Fluctuation during the Past 200,000 Years Revealed from Quartz in North Pacific Deep-sea Sediments.

Okamoto, Takanori; Matsumoto, Eiji; Kawahata, Hodaka

doi:10.4116/jaqua.41.35

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…Nagashima et al [2004] reported that grain size distributions of detrital materials for samples of hemipelagic sediment derived from the northern part of the Japan Sea could be described by the combination of two lognormal distributions of grains with clay‐ and silt‐sizes. Lognormal fitting was preferred for the Japan Sea sediments on the basis of the observation that grain size distribution of aeolian quartz in the North Pacific sediments is close to lognormal distribution [ Okamoto et al , 2002]. This idea is also supported by our own observation on aeolian dust that fell in the northern part of Japan on May 2002 shows grain size distribution close to lognormal distribution [ Nagashima et al , 2007].…”

Section: Resultsmentioning

confidence: 96%

Contribution of aeolian dust in Japan Sea sediments estimated from ESR signal intensity and crystallinity of quartz

Nagashima

Tada

Tani

et al. 2007

Geochem Geophys Geosyst

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[1] Late Quaternary hemipelagic sediments in the Japan Sea contain aeolian dust from East Asia which potentially records past variations in the Asian monsoon and the westerly jet. However, extracting information about aeolian dust from Japan Sea sediments is difficult because the sediments also contain detrital material from the Japanese Islands. Here we present a method for extracting the aeolian dust components from Japan Sea hemipelagic sediments using provenance analysis of different size fractions. Hemipelagic sediments of the Japan Sea can be described by a combination of two populations characterized by lognormal grain size distributions with different median grain sizes, which are called the coarser (2-15 mm) and the finer (<10 mm) populations. We characterized these populations on the basis of provenance analyses, using the electron spin resonance (ESR) signal intensity and crystallinity of quartz. The results suggest that quartz in the coarser population has been mostly supplied from Northern China and Siberia/northeastern China by aeolian transport, whereas quartz in the finer population has been dominantly supplied by rivers draining the Japanese Islands.

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Section: Resultsmentioning

confidence: 96%

Contribution of aeolian dust in Japan Sea sediments estimated from ESR signal intensity and crystallinity of quartz

Nagashima

Tada

Tani

et al. 2007

Geochem Geophys Geosyst

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“…In western China, one of the main dust source areas in the world, eolian dust activity has been linked to seasonal changes in large-scale atmospheric circulation patterns (An et al, 1995;Littmann, 1991). Many investigations of land (An and Porter, 1997;An et al, 1991;Ding et al, 2000;Porter and An, 1995) and ocean (Hovan et al, 1991;Okamoto et al, 2002;Rea and Leinen, 1988) sediments have shown that Asian dust flux in downwind areas is mainly controlled by the aridity in the source areas and by the atmospheric monsoonal circulations in the glacialinterglacial cycles. Their present activity is reported to have strong positive correlation with the surface wind velocity (Kurosaki and Mikami, 2003) and negative correlation with the antecedent summer and annual precipitation and soil moisture anomalies (Liu et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Eolian quartz flux variations in Cheju Island, Korea, during the last 6500 yr and a possible Sun–monsoon linkage

2005

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We have obtained a high-resolution sedimentary record covering the last 6500 yr from a maar in Cheju Island, Korea, in order to reconstruct the history of variations in the eolian quartz flux (EQF) and hence Asian dust. The long-term variation of EQF reveals three intervals: a period of high EQF (4000–2000 cal yr B.P.) and two periods of low EQF (6500–4000 cal yr B.P. and 2000 cal yr B.P. to present), which have been affected by the East Asian monsoon due to insolation change and the cold air activity in high latitudes correlated with polar high-pressure systems. This long-term variation is superimposed by millennial- and centennial-scale fluctuations with periodicities of 1137, 739, 214, 162, 137, 127, and 111 yr, implying drier conditions in the source areas in China. The detrended EQF record correlates visually and statistically (cross-spectral analysis) with the atmospheric Δ14C record (solar proxy). The centennial-scale variability in EQF may be affected by the solar activity through the Sun–East Asian monsoon linkage.

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Guadalupian (Middle Permian) radiolarian and sponge spicule faunas from the Bancheng Formation of the Qinzhou allochthon, South China

et al. 2013

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Eolian Dust Fluctuation during the Past 200,000 Years Revealed from Quartz in North Pacific Deep-sea Sediments.

Abstract: Magnetic susceptibility evidence of monsoon variation on the Loess Plateau of central China during the last 130,000 years. Quat. Res., 36, 26-36.

Cited by 7 publications

References 15 publications

Contribution of aeolian dust in Japan Sea sediments estimated from ESR signal intensity and crystallinity of quartz

Contribution of aeolian dust in Japan Sea sediments estimated from ESR signal intensity and crystallinity of quartz

Eolian quartz flux variations in Cheju Island, Korea, during the last 6500 yr and a possible Sun–monsoon linkage

Guadalupian (Middle Permian) radiolarian and sponge spicule faunas from the Bancheng Formation of the Qinzhou allochthon, South China

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