Time Variations of Erosional Force and Grain Size in Pleistocene Lake Sediments

Kashiwaya, Kenji; Yamamoto, Atsuyuki; Fukuyama, Kunio

doi:10.1016/0033-5894(87)90033-0

Cited by 39 publications

(30 citation statements)

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“…Grain-size data have extensively been used before as a paleoenvironmental and -climatological proxy on long terrestrial and lacustrine sedimentary records, including those from the Chinese Loess Plateau (e.g. Sun and Huang, 2006;Sun et al, 2006) and from lakes Baikal (Kashiwaya et al, 1998(Kashiwaya et al, , 2001 and Biwa (Kashiwaya et al, 1987). At Lake El'gygytgyn, previous studies of grain-size variations are widely restricted to the sediments formed during the past 65 ka (Asikainen et al, 2007).…”

Section: A Francke Et Al: Multivariate Statistic and Time Series Anmentioning

confidence: 99%

Multivariate statistic and time series analyses of grain-size data in quaternary sediments of Lake El'gygytgyn, NE Russia

et al. 2013

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Abstract. Lake El'gygytgyn, located in the Far East Russian Arctic, was formed by a meteorite impact about 3.58 Ma ago. In 2009, the International Continental Scientific Drilling Program (ICDP) at Lake El'gygytgyn obtained a continuous sediment sequence of the lacustrine deposits and the upper part of the impact breccia. Here, we present grain-size data of the past 2.6 Ma. General downcore grain-size variations yield coarser sediments during warm periods and finer ones during cold periods. According to principal component analysis (PCA), the climate-dependent variations in grainsize distributions mainly occur in the coarse silt and very fine silt fraction. During interglacial periods, accumulation of coarser material in the lake center is caused by redistribution of clastic material by a wind-induced current pattern during the ice-free period. Sediment supply to the lake is triggered by the thickness of the active layer in the catchment and the availability of water as a transport medium. During glacial periods, sedimentation at Lake El'gygytgyn is hampered by the occurrence of a perennial ice cover, with sedimentation being restricted to seasonal moats and vertical conduits through the ice. Thus, the summer temperature predominantly triggers transport of coarse material into the lake center. Time series analysis that was carried out to gain insight into the frequency of the grain-size data showed variations predominately on 98.5, 40.6, and 22.9 kyr oscillations, which correspond to Milankovitch's eccentricity, obliquity and precession bands. Variations in the relative power of these three oscillation bands during the Quaternary suggest that sedimentation processes at Lake El'gygytgyn are dominated by environmental variations caused by global glacial-interglacial variations (eccentricity, obliquity), and local insolation forcing and/or latitudinal teleconnections (precession), respectively.

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Section: A Francke Et Al: Multivariate Statistic and Time Series Anmentioning

confidence: 99%

Multivariate statistic and time series analyses of grain-size data in quaternary sediments of Lake El'gygytgyn, NE Russia

et al. 2013

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“…To reconstruct the processes, it is necessary to obtain information about both the physical properties and erosional force (Kashiwaya, 1986(Kashiwaya, , 1987Kashiwaya et al, 1987b). We therefore discuss temporal changes in heavy rainfall in relation to landslides and tree ring width.…”

Section: Introductionmentioning

confidence: 99%

Tree ring information and rainfall characteristic for landslide in the Kobe District, Japan

Kashiwaya

And

Kawatani

1989

Earth Surf Processes Landf

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Heavy rainfall on the south side of the Rokko Mountains has often caused severe landslides and debris flows. Analysis of the annual summation of rainfall in excess of 100 mm/day shows that the rainfall in this area has dominant periodicities of about 25-30, 10-13, and 5-7 years. The period of about 25-30 years corresponds to that of occurrence of the natural disasters produced by heavy rainfall; years when the maximum rainfall correspond to years when there have been severe landslides and debris flows in the area. Temporal change in this rainfall may provide a first approximation for erosional force. Analyses of tree ring width from these mountains indicate that the sequences have a dominant periodicity of about 25-30 years. Cross-spectral analyses for rainfall and ring width in this area show high coherency for the periods of about 25-30 years; evidence that variations in the ring width may be used as proxy data for erosional force.

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“…High precipitation rates enhance erosional forces, thereby increasing sediment production, and increase the transport capacity of streams and rivers. Studies of the grainsize distributions indicate that the fraction of coarse detrital particles increases in Lake Biwa sediments during periods of increased precipitation (Yamamoto 1976(Yamamoto , 1984Kashiwaya et al 1987). We thus interpret the fluvial quartz flux to Lake Biwa as a proxy index for past changes in precipitation over the lake region, i.e.…”

Section: Interpretation and Discussionmentioning

confidence: 88%

“…Precipitation is one of the most important factors for controlling soil erosion in the Lake Biwa area (Yamamoto 1976(Yamamoto , 1984Kashiwaya et al 1987). High precipitation rates enhance erosional forces, thereby increasing sediment production, and increase the transport capacity of streams and rivers.…”

Section: Interpretation and Discussionmentioning

confidence: 99%

“…Yamamoto (1976Yamamoto ( , 1984 reconstructed the palaeoprecipitation history of the Lake Biwa area based on variations in grain-size distribution of sediments from a 200-m-long core. Kashiwaya et al (1987) analysed the phi median diameter, second phi skewness measure and skewness of grain-size distributions of sediments from a 110-m-long core, and suggested that the grain-size parameters of Lake Biwa sediments might reflect erosional processes and changes in the palaeohydrological conditions of the lake catchment.…”

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Precipitation history of the Lake Biwa area in central Japan over the last 145 ka

Xiao

Inouchi

Kumai

et al. 2004

Boreas

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K. 2004 (February): Precipitation history of the Lake Biwa area in central Japan over the last 145 ka. Boreas, Vol. 33, pp. 74-81. Oslo. ISSN 0300-9483.The fluvial quartz flux (FQF, g cm À2 ka À1 ) to Lake Biwa of central Japan is developed as a proxy of variations in palaeoprecipitation over the lake catchment. Lake Biwa sediments spanning the last c. 145 ka are characterized by 4 main intervals when the FQF values were significantly greater than 2 g cm À2 ka À1 , and 5 main periods during which FQF values were lower. Three of the intervals with high FQF values occur from c. 128 to 78 ka BP, with peak values at c. 122, 101 and 82 ka BP; the fourth of two narrow peaks exists between c. 48 and 35 ka BP. Three main periods with lower FQF values intervene between intervals of high FQF values, and two others lie before c. 128 ka BP and after c. 35 ka BP. The data imply that palaeoprecipitation over the lake catchment increased during the intervals of high FQF values, and decreased during the periods of lower FQF values. High FQF values between c. 48 and 35 ka BP are interpreted to reflect an effective runoff of meltwater from the surrounding mountains during the interstade of the last glaciation. Relatively low FQF values during the early Holocene are interpreted to reveal a sluggish northward retreat of the polar front in the North Pacific Ocean that suppressed the northward advance of the summer monsoonal front and regional precipitation. During the last interglaciation, the increasing trend of FQF values is interpreted to indicate a progressive expansion of the Sea of Japan related to the rise in global sea level, which increased moisture advection to, and precipitation within, the Lake Biwa region. , located in the central part of Honshu Island (34°58' to 35°31' N, 135°52' to 136°17' E) (Fig. 1), has an area of 674 km 2 , a maximum water depth of 104 m and an altitude of 84.37 m above the mean sea level of

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Time Variations of Erosional Force and Grain Size in Pleistocene Lake Sediments

Cited by 39 publications

References 5 publications

Multivariate statistic and time series analyses of grain-size data in quaternary sediments of Lake El'gygytgyn, NE Russia

Multivariate statistic and time series analyses of grain-size data in quaternary sediments of Lake El'gygytgyn, NE Russia

Tree ring information and rainfall characteristic for landslide in the Kobe District, Japan

Precipitation history of the Lake Biwa area in central Japan over the last 145 ka

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