Seismic stratigraphy and depositional history of late Quaternary deposits in a tide-dominated setting: An example from the eastern Yellow Sea

Yoo, Dong‐Geun; Lee, Gwang-Soo; Kim, Gil Young; Kang, Nyeon‐Keon; Yi, Bo‐Yeon; Kim, Young‐Jun; Chun, Jong-Hwa; Kong, Gee-Soo

doi:10.1016/j.marpetgeo.2016.03.005

Cited by 49 publications

(22 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Differentiation among these possible mechanisms, or some combination thereof, is not possible at this time but will benefit from rapidly evolving isotope-enabled simulations that incorporate realistic changes in boundary conditions, including ice-volume and sea level. Interpreted in the context of salinity (rainfall and YRV runoff), the 100-ky variance in the local δ 18 O sw signal is likely influenced by shoreline migration, bringing the YRV freshwater source closer to the site during glacial sea level low stands 61 , counteracting the effect of decreased precipitation indicated by an array of independent proxy records of EAM rainfall 11 , 26 , 62 and model simulations 63 – 65 .…”

Section: Discussionmentioning

confidence: 99%

Precession-band variance missing from East Asian monsoon runoff

et al. 2018

View full text Add to dashboard Cite

Speleothem CaCO3 δ18O is a commonly employed paleomonsoon proxy. However, inferring local rainfall amount from speleothem δ18O can be complicated due to changing source water δ18O, temperature effects, and rainout over the moisture transport path. These complications are addressed using δ18O of planktonic foraminiferal CaCO3, offshore from the Yangtze River Valley (YRV). The advantage is that the effects of global seawater δ18O and local temperature changes can be quantitatively removed, yielding a record of local seawater δ18O, a proxy that responds primarily to dilution by local precipitation and runoff. Whereas YRV speleothem δ18O is dominated by precession-band (23 ky) cyclicity, local seawater δ18O is dominated by eccentricity (100 ky) and obliquity (41 ky) cycles, with almost no precession-scale variance. These results, consistent with records outside the YRV, suggest that East Asian monsoon rainfall is more sensitive to greenhouse gas and high-latitude ice sheet forcing than to direct insolation forcing.

show abstract

Section: Discussionmentioning

confidence: 99%

Precession-band variance missing from East Asian monsoon runoff

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The dotted gray lines indicate the paleo-river pathways (Yoo et al, 2016). Acronyms are defined as follows: 1 and determined that the CYSM was formed from a complex mixture of sediments from the Huanghe, as well as the Changjiang and several Korean rivers (Zhao et al, 1990;Wei et al, 2003;Zhang et al, 2008;Li et al, 2014a;Wang et al, 2014;Koo et al, 2018). In addition, recent studies using core sediments suggested that the provenance of CYSM changed mainly from Huanghe to Changjiang with a minor contribution from the Korean rivers during the Holocene (Lim et al, 2015;Hu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Changes in detrital sediment supply to the central Yellow Sea since the last deglaciation

Koo

Cho

2020

Ocean Sci.

View full text Add to dashboard Cite

Abstract. The sediment supply to the central Yellow Sea since the last deglaciation was uncovered through clay mineralogy and geochemical analysis of core 11YS-PCL14 in the Central Yellow Sea Mud (CYSM). The core can be divided into four units based on the various proxies, such as grain size, clay mineralogy, geochemistry, and Sr and Nd isotopes: Unit 4 (700–520 cm; 15.5–14.8 ka), Unit 3 (520–310 cm; 14.8–12.8 ka), Unit 2 (310–130 cm; 12.8–8.8 ka), and Unit 1 (130–0 cm; <8.8 ka). Unit 2 is subdivided into two subunits, Unit 2-2 (310–210 cm; 12.8–10.5 ka) and Unit 2-1 (210–130 cm; 10.5–8.8 ka), according to smectite content. Comparison of the clay mineral compositions, rare earth elements, and εNd indicate distinct provenance shifts in core 11YS-PCL14. Moreover, the integration of clay mineralogical and geochemical indices show different origins according to particle size. During the late last deglaciation (Units 3 and 4, 15.5–12.8 ka), Unit 4 sediments originated from all potential provenance rivers, such as the Huanghe, Changjiang, and western Korean rivers, while the source of coarse sediments changed to the Huanghe beginning with Unit 3. Fine-grained sediment was still supplied from all rivers during the deposition of Unit 3. Early Holocene (Unit 2) sediments were characterized by oscillating grain size, clay minerals, and moderate εNd values. In this period, the dominant fine-sediment provenance changed from the Huanghe to the Changjiang, whereas coarse sediments most likely originated from western Korean rivers. The Unit 1 CYSM sediments were sourced primarily from the Changjiang, along with minor contributions from the western Korean rivers. Possible transport mechanisms concerning such changes in the sediment provenance include paleo-river pathways, tidal stress evolution, and the development of the Yellow Sea Warm Current and coastal circulation systems, depending on the sea level fluctuations.

show abstract

“…1 ), was part of the Yellow River, a major river system flowing east through China, when the sea level was lower than at present during the last glacial maximum (LGM) 6 , 20 , 21 . The Yellow Sea probably created confluences with the present-day major river systems along the south and west coast on the Korean Peninsula 21 – 23 . Conversely, the east coast of this peninsula is geographically isolated by successive mountain ranges (Fig.…”

Section: Introductionmentioning

confidence: 99%

The genetic structure of Squalidus multimaculatus revealing the historical pattern of serial colonization on the tip of East Asian continent

Jeon

Kim

Lee

et al. 2018

Sci Rep

View full text Add to dashboard Cite

Separated river systems could create confluences via two geological processes, estuary coalescence in response to decreasing sea levels and headwater capture, allowing primary freshwater species to disperse across rivers. Squalidus multimaculatus, is an endemic and primary freshwater species restricted to the southeast coast of the Korean Peninsula. The distribution of this species is unique, given that other congeneric species, including its closely related S. gracilis majimae, as well as other cyprind species are observed throughout the peninsula except for the east coast. Phylogeographic analyses were conducted using three mitochondrial loci to identify the origin of S. multimaculatus and the historical pathways of dispersal. A strong phylogenetic affinity between S. multimaculatus and S. g. majimae and the genetic structure among populations indicated that S. multimaculatus originated from the eastward colonization of the common ancestor between S. g. majimae and S. multimaculatus via headwater capture through fault zones within successive mountain range. Following colonization, the ancestral S. multimaculatus likely migrated towards north via estuary coalescence along a well-developed continental shelf. Our study was the first empirical attempt providing insights into how freshwater organisms dispersed to the southernmost tip of East Asia, despite the potential loss of such historical imprints with anthropogenic interference.

show abstract

Seismic stratigraphy and depositional history of late Quaternary deposits in a tide-dominated setting: An example from the eastern Yellow Sea

Cited by 49 publications

References 46 publications

Precession-band variance missing from East Asian monsoon runoff

Precession-band variance missing from East Asian monsoon runoff

Changes in detrital sediment supply to the central Yellow Sea since the last deglaciation

The genetic structure of Squalidus multimaculatus revealing the historical pattern of serial colonization on the tip of East Asian continent

Contact Info

Product

Resources

About