Recognition of sea-level change duringthe Neolithic period in the Jiangsu Area, East China
2016
Based on the detailed analyses, multi-proxies such as AMS 14 C dating, elevation measurements with GPS-CORS, and the identification
of marine micropaleontology are used to research the archaeological
stratums archived in the Qingdun site of Haian, the Taozhuang site
and Kaizhuang site of Dongtai, and the Luotuodun site of Yixing, respectively.
The results show that the depth of 389–489 cm (13.1–8.5
cal ka BP, 1985 Yellow Sea Datum - 0.65–1.65
m) of Qingdun site, the depth of 156–230 cm (12.6–9.2
cal ka BP, 1985 Yellow Sea Datum 0.97–0.23 m) of Taozhuang
site, the depth of 228–390 cm (10.3–7.8 cal ka BP, 1985
Yellow Sea Datum 0.03–1.59 m) of Kaizhaung site, and the depth
of 255–279 cm (12.0–9.2 cal ka BP, 1985 Yellow Sea Datum
1.08–1.84 m) of Qingdun site are significant marine sedimentary
strata. These indicate that there was still a shallow sea sedimentary
environment from the beginning of the Holocene to 7.8 cal ka BP in
the region of Haian and Dongtai in north Jiangsu. Meanwhile, there
was also a shallow sea environment from the beginning of the Holocene
to 9.2 cal ka BP to the west of Taihu Lake in south Jiangsu. These
research findings not only improve the resolution of Holocene sea
level changes, but also provide scientific clues and evidence for
searching the early Neolithic sites in Jiangsu. In addition, the elevations
of 62 ancient wells and 102 ash pits under the Chenghu Lake of Suzhou
were measured using the GPS-CORS. These measured data suggest that
in the Songze cultural period, the Liangzhu cultural period, the Xia-Shang-Zhou
dynasties and the Warring States period, the 1985 Yellow Sea Datum
of the top of the wells and ash pits are mostly in between 0 - 2 m, and their bottom elevations are mostly
around - 3 m. In the six dynasties and
the Song Dynasty, some 1985 Yellow Sea Datum of the top of the wells
and ash pits are lower than - 1 m, while
some bottom elevations are lower than - 4 m. This evidence demonstrates that the forming age of Chenghu Lake
in Suzhou is in the period after the Song Dynasty.
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