2020年江西高安上湖旧石器遗址发掘报告
收稿日期: 2022-06-21
修回日期: 2022-08-17
网络出版日期: 2023-06-13
基金资助
中国科学院战略性先导科技专项(XDB26000000);青藏高原地球系统基础科学中心项目(CTPES);青藏高原地球系统基础科学中心项目(41988101)
A report of the 2020 excavation of the Shanghu Paleolithic site in Gaoan city, Jiangxi Province
Received date: 2022-06-21
Revised date: 2022-08-17
Online published: 2023-06-13
上湖遗址埋藏于锦江右岸第3级阶地顶部的红色黏土堆积中。2020年对上湖遗址B区进行了发掘,发现石制品3030件。石制品类型包括石核、石片、石器、断块、碎屑和未经加工的砾石;原料主要来自附近河滩的砾石,岩性以脉石英为主;石核剥片以锤击法为主,辅以砸击法,缺乏预制程序,盘状石核占有一定比例;石器类型多样,以刮削器为主,另有少量凹缺器、锯齿刃器、尖状器和钻等;石器毛坯以断块和石片为主,修理程度有限。从尺寸来看,上湖遗址石制品组合表现出明显的小型化特征。初步光释光测年结果显示,古人类在该遗址频繁活动的时间始于距今约2.6万年前,处于深海氧同位素2阶段(MIS 2阶段)的早期。上湖遗址的发掘,为认识中国南方地区小型石片石器工业的出现和发展等问题提供了重要材料。
赵文杰 , 贾真秀 , 李三灵 , 李浩 . 2020年江西高安上湖旧石器遗址发掘报告[J]. 人类学学报, 2023 , 42(03) : 373 -380 . DOI: 10.16359/j.1000-3193/AAS.2023.0007
The Shanghu Paleolithic site is located in the town of Shanghu, Gaoan city, Jiangxi Province in central South China. The site occurs in red clay soils that were deposited at the top of the third terrace of the Jinjiang River. A total of 3030 stone artifacts have been excavated from Area B of the site. Among them, 1274 were unearthed from Layer 1, 1722 from Layer 2, and only 34 from Layer 3. Layer 1 is disturbed by modern agricultural activities and its age has not been established. The OSL dating of Layer 2 indicates that intensive site occupations began at the early stage of MIS 2 (i.e., approximately 26 kaBP). Layer 3 yielded a few artifacts and its age has not yet been established. The types of stone artifacts include cores, flakes, tools, chunks, debris and unmodified cobbles, and our analysis shows that vein quartz from the nearby river bank was favored for exploitation by humans. In addition, cherts were infrequently used, and non-preferentially given their development of inner fractures that compromised reduction sequences. Various core reduction patterns have been identified including discoidal cores that reflect centripetal flaking, which indicates some degree of organization during reduction sequences. Scrapers are the predominant tool type, with small samples of notches, denticulates, points, awls, etc. Tools are small and light and occur primarily on chunk and flake blanks, along with limited retouching. Overall assemblage dimensions confirm the prevalence of miniaturized lithics, clearly evident in the average length, width and thickness for free-hand percussed flakes (24.6 mm, 18.2 mm, and 8.9 mm), free-hand percussed cores (43.7 mm, 34.8 mm, and 25.5 mm) and tools (29.2 mm, 22.6 mm, and 12.3 mm, respectively). Traditionally, South China lithic assemblages are well-known for their large cobble tools, but there is increasing evidence for small-sized cores and flakes and flake-based tools at sites in different regions across South China. Therefore, the emergence of a small-sized flake tool industry in South China has become a key academic question. Some scholars argue that such an industry may be related to the migration of northern China populations, under relatively dry and cold environmental conditions that prevailed during MIS2. However, recent discoveries in South China of similar yet far older (~100 kaBP) lithic assemblages likely indicate a different scenario, and that this technology was probably locally developed in response to changing climatic conditions. Given its chronology and lithic technology, the Shanghu assemblage therefore provides new data that significantly improve our understanding of the emergence and development of a small flake tool industry in South China.
Key words: Shanghu site; Lithics; Vein quartz; Flake tools; MIS
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