A review on the provenance discrimination of sediments in the Yellow Sea

Yang, Shouye; Jung, Hoi Soo; Lim, Dhong Il; Li, Cong Xian

doi:10.1016/s0012-8252(03)00033-3

Cited by 360 publications

(201 citation statements)

References 61 publications

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“…The primary process for physical weathering is abrasion, by which clasts and other particles are reduced in size. [7]; c) Cheng [17]; d) Xu et al [18] and Liu et al [19]; e) Yang et al [20]; f) Liu et al [21] ; g) Liu et al [22]. ECS means the East China Sea.…”

Section: Discussionmentioning

confidence: 99%

Clay mineral composition and their sources for the fluvial sediments of Taiwanese rivers

Shi

Kao³

et al. 2011

Chin. Sci. Bull.

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Located at the collision boundary between the Philippine Sea Plate and the Eurasian Continental Plate, the island of Taiwan is generally recognized as an important example in the MARGINS Program Science Plan and "source-to-sink" research because of its high tectonic activity, heavy rainfall and unique geography. Large suspended sediment loads are transported to the adjacent ocean by Taiwanese rivers every year, making Taiwan an important source of sediments into the adjacent seas and a natural laboratory for studying the systemic movement of fluvial sediments from source to sink. A detailed study on the clay mineral composition of surface sediments collected from the drainage basins of 12 Taiwanese rivers using X-ray diffraction methods was conducted. Our results indicated that the clay mineral assemblages consisted dominantly of illite (approximately 73%) and chlorite (approximately 24%), with lesser abundances of kaolinite (approximately 3%) and even lower levels of smectite from the Danshuei River sediments in northwestern Taiwan. The Jhuoshuei River sediments from western Taiwan contained clay mineral assemblages that consisted of illite (approximately 75%) and chlorite (approximately 25%), but they lacked kaolinite and smectite. In southwestern Taiwan, the clay mineral assemblages were dominated by illite (approximately 75%) and chlorite (approximately 23%), but had a low abundance of kaolinite (generally < 2%) and no smectite. The clay mineral assemblages in eastern Taiwan are obviously different from those in western parts of the island. The most noticeable difference is that the average abundance of chlorite in the Hualien River from eastern Taiwan was the highest (approximately 48%) of all the Taiwanese rivers. We concluded that, in general, the clay mineral assemblages in Taiwanese rivers were mainly composed of illite and chlorite with kaolinite and smectite being scarce, and these trends are different from those in China's mainland rivers. The clay mineral composition shown in this study was primarily determined by the properties of the bedrock, and the differential weathering intensities of the drainage area. The surface sediments in Taiwan's rivers showed a greater abundance of illite and chlorite because the outcropped rocks were mainly composed of Tertiary sedimentary rocks, especially sandstone, shale and slate, and show strong physical weathering. The relatively high relief and more abundant rainfall also caused the clay minerals in the fluvial sediments to be transported to the estuaries down rivers from the mountains and then delivered to the adjacent seas by currents and waves over a shorter time scale.

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Section: Discussionmentioning

confidence: 99%

Clay mineral composition and their sources for the fluvial sediments of Taiwanese rivers

Shi

Kao³

et al. 2011

Chin. Sci. Bull.

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“…Ocean currents and circulation play a key role in sediment transport and deposition in the marginal seas. The massive Yellow River-derived sediment flux is transported from the narrow coastal area to the offshore area during winter in the BS, but also moves eastward off the northern Shandong Peninsula driven by the Bohai Coastal Current (BCC) and then southward into the south YS driven by the Yellow Sea Coastal Current (YSCC) (Lu et al, 2011;Yang et al, 2003). The sediments in the BS are therefore mainly deposited as clay in the western part (near the YRE), silt in the central part and sand in the eastern part (Yang et al, 2003).…”

mentioning

confidence: 99%

“…The massive Yellow River-derived sediment flux is transported from the narrow coastal area to the offshore area during winter in the BS, but also moves eastward off the northern Shandong Peninsula driven by the Bohai Coastal Current (BCC) and then southward into the south YS driven by the Yellow Sea Coastal Current (YSCC) (Lu et al, 2011;Yang et al, 2003). The sediments in the BS are therefore mainly deposited as clay in the western part (near the YRE), silt in the central part and sand in the eastern part (Yang et al, 2003). Two general circulation patterns are reported in the YS, including a counterclockwise gyre with a northward inflow of the Yellow Sea Warm Current (YSWC) and a southward inflow of the YSCC, and a clockwise gyre with the YSWC and a southward inflow of the Korea Coastal Current (KCC).…”

mentioning

confidence: 99%

“…Two general circulation patterns are reported in the YS, including a counterclockwise gyre with a northward inflow of the Yellow Sea Warm Current (YSWC) and a southward inflow of the YSCC, and a clockwise gyre with the YSWC and a southward inflow of the Korea Coastal Current (KCC). As a result, the central part of the YS is dominated by clay, while silt and sand generally blanket the eastern and western parts (Yang et al, 2003). In the ECS, a large proportion of Yangtze River-derived sediments are transported southwards along the coast driven by the Zhejiang-Fujian Coastal Current (ZFCC) and trapped in the inner shelf due to the blocking by the northward offshore Taiwan Warm Current (TWC).…”

mentioning

confidence: 99%

“…4. Surface sediment particle size distribution and general circulation system in Chinese marginal seas (modified after Hu et al, 2011;Yang et al, 2003;Zhu et al, 2012;Guo et al, 2006 …”

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Distribution of mercury in coastal marine sediments of China: Sources and transport

Meng

Shi

Yun

et al. 2014

Marine Pollution Bulletin

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a b s t r a c tA total of 220 surface sediments and eight sediment cores were analyzed to study the distribution and transport of Hg in Chinese marginal seas. Spatial distribution showed a general offshore decreasing trend towards the outer continental shelf. Vertical profiles of sediment cores displayed a general increasing trend from bottom to surface layers. Coastal land-based discharges and river-derived inputs are probably the main sources of Hg in coastal sediments of China seas, while TOC, pH, ocean currents and sediment characteristics could play important roles in the transport and spatial distribution of Hg in sediment. The influence of TOC on Hg concentration is more significant than that of pH. The mud deposits on the coastal shelves are main sinks of Hg in the region. The results showed that sedimentary Hg was affected by regional anthropogenic activities and riverine runoffs, and was also influenced by long-range atmospheric transport and ocean current circulations.

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ITCZ and ENSO pacing on East Asian winter monsoon variation during the Holocene: Sedimentological evidence from the Okinawa Trough

Zheng

Wan

et al. 2014

JGR Oceans

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Deep-sea fan sediments provide an excellent geological archive for paleoenvironment reconstruction. Grain size, clay mineral and elemental (Ti, Fe, Ca) compositions were measured for a core retrieved from a submarine fan in the Okinawa Trough. Varimax-rotated Principal Component Analysis (V-PCA) on time-evolution of grain size spectrum reveals that, since the Holocene, sediment was transported mainly by the benthic nepheloid layer (33%) and upper layers (33%) which is driven by the East Asian winter monsoon (EAWM). The intensification of the Kuroshio Current during the Holocene, masks the fluvial signal of the summer monsoon and obstructs clay minerals derived from the Yellow River, a major contributor prior to 12 ka BP. A new grain size index (GSI), which represents the EAWM well, exhibits a negative correlation with the d 18 O record in Dongge Cave, China during the Holocene when sea level was relatively steady. This anticorrelation suggests the southward migration of the Intertropical Convergence Zone (ITCZ). The consistency among our records and rainfall records in Peru, Ti counts in the Cariaco Basin, monsoon records in Oman and the averaged summer insolation pattern at 30 N further support the ITCZ's impact on monsoon systems globally. Cross-Correlation Analyses for GSI and log(Ti/Ca) against d 18 O record in Dongge Cave reveal a decoupling between the East Asian winter and summer monsoon during 5500-2500 cal yr BP, with greater complexity in the last 2500 years. This can be attributed to exacerbated ENSO mode fluctuations and possibly anthropogenic interference superimposed on insolation and ITCZ forcing.

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A review on the provenance discrimination of sediments in the Yellow Sea

Cited by 360 publications

References 61 publications

Clay mineral composition and their sources for the fluvial sediments of Taiwanese rivers

Clay mineral composition and their sources for the fluvial sediments of Taiwanese rivers

Distribution of mercury in coastal marine sediments of China: Sources and transport

ITCZ and ENSO pacing on East Asian winter monsoon variation during the Holocene: Sedimentological evidence from the Okinawa Trough

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