Table 1 Sedimentary types and input mechanism of the southern Yangtze Shoal in the Holocene.
Periods | Sea level/recent48 | Ancient flood events | Yellow River divagation | Terrestrial material | Sedimentary types | Input mechanism |
|---|---|---|---|---|---|---|
0–1.4 ka | high 0 m | Yangtze River frequent(1.4–0.8 ka) Yellow River frequent(1.0–0.5 ka) | 0.2 ka and 1.0 ka | Yellow River source increase(0.2 ka,1.0 ka) | Mixed Yellow River(0.2 ka,1.0 ka) | Current |
1.4–3.8 ka | low −10 m | Yellow River frequent(3.8–2.8 ka) | — | Yangtze River source increase | Yangtze River | Runoff and current |
3.8–6.3 ka | high 0 m | Yangtze River frequent(5.0–3.8 ka) Yellow River frequent(4.2–3.8 ka) | 4.2 ka | Yellow River source increase | Yellow River | Current |
6.3–8.3 ka | low −20 m | Yangtze River frequent(7.5–6.5 ka) Yangtze River reduce(8.0 ka) | — | Yellow River source increase(8.0 ka) | Yangtze River Yellow River(8.0 ka) | Runoff and current |
8.3–10.8 ka | low <−20 m | — | — | Yangtze River source increase | Yangtze River | Runoff |
