Depositional development of an isolated mound and adjacent area in the southern Yellow Sea during the last postglacial sea-level rise

Delta development and channel incision during marine isotope stages 3 and 2 in the western South Yellow Sea

“…Late Pleistocene channel incisions, in particular, are documented on continental shelves worldwide (e.g., water depths mostly less than 100 m, that underwent complete subaerial exposure during the LGM . Recent detailed studies of the SYS have focused on the sedimentation and environmental history of the whole SYS during the last postglacial transgression (e.g., Liu et al, 1989;Milliman et al, 1989;Alexander et al, 1991;Lee and Yoon, 1997;Jin and Chough, 1998;Yang and Liu, 2007;Xiang et al, 2008;Lee et al, 2009), and late Quaternary sedimentation and stratigraphy in the eastern SYS (e.g., Jin et al, 2002). Although late Quaternary sedimentary records, including deposits of paleo-channels and paleo-deltas, have been documented using widely spaced seismic profiles and sparse cores in the western SYS (Yang, 1985;Qin et al, 1986;Li et al, 1998;Zhao et al, 2003;Gu and Zhang, 2009), the chronology and distribution of sedimentary facies in the western SYS are poorly constrained for lack of data and remain controversial.…”

Late Pleistocene Post-Glacial Sea Level Rise and Differential Preservation of Transgressive “Sand Ridge” Deposits in the Adriatic Sea

“…Seismic data were integrated with sedimentological, chronostratigraphic, and biostratigraphic data (tephra layers, isotope curves, pollen spectra, 14 C analyses, foraminifera abundance) from sediment cores [70,[76][77][78]. Sediment cores were collected using both gravity and piston corers with Figure 4 (modified from [56]).…”

“…With respect to the plethora of patterns included in the general definition of "transgressive sand ridges" [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], the Adriatic deposits more closely resemble the two-fold scheme defined by [16], according to which a distinction is made between sand ridges resulting from transgressive reworking of shelf margin lowstand deposits (i.e., the shelf edge TSR) and sand ridges that are "transgressive in origin" (i.e., the back-stepping mounded deposits). In the Adriatic case, however, the shelf edge TSR are also considered "transgressive in origin", since they distinctively overlay the "transgressed" lowstand deposits, as the result of a later (transgressive) reworking and re-sedimentation process ( Figure 12).…”

“…Shelf deposits with overall sandy composition, wedged and/or mounded shape, and along-strike extent over tens of kilometers, are known from ancient and modern continental margins [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. These deposits include sedimentary bodies formed in different environments by different processes; they range in scale from thick (tens of meters) prograding wedges [16,17] to smaller (1-3 m) bedforms [18].…”