Rare earth element geochemistry and Nd isotope composition of stream sediments, south Han River drainage basin, Korea

Lee, Seung-Gu; Kim, Jin-Kwan; Yang, Dong-Yoon; Kim, Ju–Yong

doi:10.1016/j.quaint.2007.05.012

Cited by 30 publications

(11 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, Yang et al (2002) reported that, based on the REE composition of the Yangtze and Yellow river sediments in China, source rock composition was the primary control on REE composition of river sediments, and that weathering processes and grain size played a minor role. The REE patterns from the sediments in the study area were affected by source rock composition, regardless of grain size of the sediment (Lee et al 2008). Therefore, all the above results confirm that the blackbrown soil and loess from the YC profile are formed by dust storms.…”

Section: Discussionsupporting

confidence: 59%

The rare earth element compositions of sediments from the loess tableland in the Liyang Plain, southern China: implications for provenance and weathering intensity

Mao

et al. 2010

Environ Earth Sci

View full text Add to dashboard Cite

To identify the weathering intensity and to deduce the provenance of sediments (black-brown soil and loess) from the loess tableland in the Liyang Plain is of great importance for understanding the development and origin of civilization of this critical region in China. The geochemical results show similar REE distribution patterns among sediments sampled from the YC profile in the Liyang Plain, reticulated red soils from the Dongting lake area, Xiashu loess in Zhenjiang, and loess from the Loess Plateau in China. These similarities imply a single provenance, from dust storms. REEs, especially the LREE/ HREE ratio and Eu anomaly, can trace weathering intensity. Higher LREE/HREE ratios, and remarkably Eu anomalies, are present in the top loess (L 0 ), Lower LREE/ HREE ratios and insignificant Eu anomalies are present in black-brown soil (S 0 *) from the Liyang Plain. These demonstrate that the black-brown soils have undergone a lower intensity of weathering than the loess of YC profile. Moreover, CIA values for sediments from the YC profile provide powerful evidence to support the above result. Comparisons of analyses of the REE contents of sediments from the YC profile, of reticulated red soils from the Dongting Lake area, Xiashu loess from the Yangtze River, and loess from the Loess Plateau, clearly show the weathering intensity decreases according to the following sequence: reticulated red soil from the Dongting Lake area [ sediments of YC profile from the Liyang Plain, which formed from dust storms & Xiashu loess from lower reach of the Yangtze River [ loess from the Loess Plateau.

show abstract

Section: Discussionsupporting

confidence: 59%

The rare earth element compositions of sediments from the loess tableland in the Liyang Plain, southern China: implications for provenance and weathering intensity

Mao

et al. 2010

Environ Earth Sci

View full text Add to dashboard Cite

show abstract

“…South Korean river ɛ Nd(0) data (bulk samples) are from Lee et al . []. The arrow shows the value of ɛ Nd(0) (–18.5 to −24.6) of Korean river sediments.…”

Section: Discussionmentioning

confidence: 99%

Distinct control mechanism of fine‐grained sediments from Yellow River and Kyushu supply in the northern Okinawa Trough since the last glacial

Zhao

Wan

Toucanne

et al. 2017

Geochem Geophys Geosyst

View full text Add to dashboard Cite

High‐resolution multiproxy records, including clay minerals and Sr‐Nd‐Pb isotopes of the clay‐sized silicate fraction of sediments from IODP Site U1429 in the northern Okinawa Trough, provide reliable evidence for distinct control mechanism on fine‐grained sediments input from the Yellow River and the southern Japanese Islands to the northern Okinawa Trough since 34 ka BP. Provenance analysis indicates that the sediments were mainly derived from the Yellow River and the island of Kyushu. Since the last glacial, clay‐sized sediments transported from the Yellow River to the study site were strongly influenced by sea‐level fluctuation. During low sea‐level stage (∼34–14 ka BP), the paleo‐Yellow River mouth was positioned closer to the northern Okinawa Trough, favoring large fluvial discharge or even direct input of detrital sediments, which resulted about four times more flux of clay‐sized sediments supply to the study area as during the relatively high sea‐level stage (∼14–0 ka BP). The input of Kyushu‐derived clay‐sized sediments to the study site was mainly controlled by the Kuroshio Current and Tsushima Warm Current intensity, with increased input in phase with weakened Kuroshio Current/Tsushima Warm Current. Our study suggests that the Kuroshio Current was very likely flowed into the Okinawa Trough and thus influenced the fine‐grained sediment transport in the area throughout the last glacial and deglacial. During ∼34–11 ka BP, the Kyushu clay‐sized sediment input was mainly controlled by the Kuroshio Current. Since ∼11 ka BP, the occurrence of Tsushima Warm Current became important in influencing the Kyushu fine‐grained sediment input to the northern Okinawa Trough.

show abstract

“…Collins et al, 1998;Valero-Garcés et al, 1999;Vital and Stattegger, 2000;Motha et al, 2002;Yang et al, 2002;Walling et al, 2008;Evrard et al, 2011), rare earth elements (e.g. Yang et al, 2002;Lee et al, 2008), grain size of suspended sediment (e.g. Kurashige and Fusejima, 1997;Slattery and Burt, 1997), and pollen assemblages (e.g.…”

Section: Introductionmentioning

confidence: 99%

Temporal variations of reservoir sediment sources in a small mountainous catchment in Korea

Kim

Onda

Yang

et al. 2013

Earth Surf Processes Landf

Self Cite

View full text Add to dashboard Cite

An understanding of the temporal variation in reservoir sedimentation and identification of the main sources of sediment are necessary for the maintenance of sustainable reservoirs. For this purpose, field measurements, sampling, and fingerprinting of reservoir sediment were undertaken from July 2005 to November 2007. Source fingerprinting of reservoir sediment was conducted using cesium‐137 (137Cs). The relative contributions of gully bank and forest road, and forest floor material to reservoir sediment were calculated using a mixing model. Bank and forest road material, estimated to make up about 96% of the reservoir sediment, was the dominant source. Enormous reservoir sedimentation, which amounted to about 60% of the total reservoir sedimentation during the observation period, occurred during a heavy rainstorm with an 80‐year recurrence time. To maintain the sustainability of the reservoir in this study, therefore, temporal and spatial preparation strategies for heavy rainstorms and bank and forest road erosion should be considered. However, spatial information on sediment sources from 137Cs fingerprinting is limited. To better identify the sediment sources spatially and temporally, further studies applying soil erosion models and more detailed field studies are needed. Copyright © 2013 John Wiley & Sons, Ltd.

show abstract

Rare earth element geochemistry and Nd isotope composition of stream sediments, south Han River drainage basin, Korea

Cited by 30 publications

References 45 publications

The rare earth element compositions of sediments from the loess tableland in the Liyang Plain, southern China: implications for provenance and weathering intensity

The rare earth element compositions of sediments from the loess tableland in the Liyang Plain, southern China: implications for provenance and weathering intensity

Distinct control mechanism of fine‐grained sediments from Yellow River and Kyushu supply in the northern Okinawa Trough since the last glacial

Temporal variations of reservoir sediment sources in a small mountainous catchment in Korea

Contact Info

Product

Resources

About