The paleolithic site of Longwangchan in the middle Yellow River,China: chronology,paleoenvironment and implications

The Longwangchan Paleolithic site, situated on the Yellow River terraces in the Hukou area, Shaanxi province, China, was found in 2003–2004, and two areas (Localities 1 and 2) of the site were excavated in 2005–2008. Abundant stone artifacts including microliths, a grinding stone fragment and a shovel, with some animal bones and shells, were recovered from Locality 1. In this study, the cultural deposits from Locality 1 were dated using radiocarbon and optical dating techniques, and the sediment properties of the deposits were analyzed. The results show that the age of the deposits ranges from 29 to 21 ka and most of them were deposited between 25 ka and 29 ka. This indicates that corresponds to late Marine Isotope Stage (MIS) 3 and early MIS 2. During the human occupation period, the climate in this area became colder and drier. Sediments from beds where the grinding slab and the shovel were found were dated to ∼25 ka, which is the oldest among the grinding stones found in China. The microliths and the grinding stone are important evidence for an incipient socio-economic process that eventually led to the regional transition from hunting-foraging to farming.     

唐墓壁画载体的特殊性及传统工艺

唐墓壁画由于长期被置于地下墓室的特殊环境,在制作工艺和材料的选择上与地上绘画艺术有很大的不同。本文剖析了唐墓壁画的特殊结构和特性;从传统工艺出发,介绍了唐墓壁画载体的材料及制作工艺;从理论上分析了唐墓壁画的主要载体一石灰地仗的收缩、开裂的防治方法。     

重庆忠县翠屏山崖墓群出土晋代金银器的分析研究

利用微聚焦能量色散X射线荧光光谱仪(EDXRF)、拉曼光谱仪(RS)、X射线电子能谱仪(XPS)等无损分析法,对重庆忠县翠屏山崖墓出土金银器的基体成分、表面腐蚀物成分以及其物相结构进行了系统的分析测试。结果表明:两个金器样品的含金量均高达90%,纯度较高。此外,还含有一定含量的银、铜、锌、镍、铷等杂质元素;银器中,大多数样品含银量高达97.38~98.85%,同时还含有少量硫、铬、镍、锌、金等杂质元素;银器表面附着的黑色的腐蚀物,经鉴定为Ag2S,红褐色腐蚀物的物相结构为Cu2O;值得关注的是,有一个银器样品含银95.2%,含铜3.19%,应为铜银合金,此结果对于探讨我国古代银铜合金技术发展与演变的研究,具有非常重要的意义。     

店子头早期遗存人类食物浅议

本文通过对店子头早期遗存的遗物梳理,简略复原出该遗址新石器人类活动时期的自然环境与经济结构,进而对其食物来源作出了一个基本的蠡测,认为店子头遗址早期人类的生产活动,主要是狩猎和捕捞,其次是挖掘与收割。渔猎和采集,是店子头遗址早期遗存的基本经济类型。其食物结构由两种物质组成,一种为纤维淀粉质类,一种为脂肪蛋白类。这两类食物均来源于大自然的赐予,而非人为的驯养和垦殖。     

早期楚文化探索中的几个问题

本文就早期楚文化探索中紧密相关而亟待解决的早期楚国与楚族、早期楚都、楚式鬲及早期楚文化面貌、性质等问题进行了学术史的回顾与思考,就今后早期楚文化探索的思路与方法提出了几点建议。     

历史时期武陵山区丹砂产地分布及其变迁

历史时期武陵山区丹砂产地的分布经历了由产地不具体,到产区形成、迅速扩展及小有扩展的历史过程;产区数量从有明确记载的秦汉魏晋南北朝至隋的1州,到唐宋增至7州,至元明清再增为8州;产区中心从秦汉魏晋南北朝至隋朝的今渝东南,至唐宋转移到今湘西地区再到明清又转移至今黔东北地区。武陵山区丹砂产地分布的历史变迁,从一个侧面反映了当时本区丹砂生产的历史进程。丹砂产地分布变迁是多种因素共同作用的结果,如丹砂资源的主导,社会经济的发展,交通和商贸,以及丹砂勘探和开采技术的影响等。     

Morphometric Analysis of Sus Remains from Neolithic Sites in the Wei River Valley,China, with Implications for Domestication

Size variation of Sus remains within and between sites is examined for the Neolithic sites in the Wei River valley in China. The coefficient of variation [V] for pig measurements at the sites of Wayaogou, Quanhucun and Jiangzhai was calculated, and we observed patterns that show evidence of two populations of different‐size pigs, supporting the likelihood that both wild and domestic pigs were present. Also, size reduction of pigs can be traced within the Neolithic‐early Bronze Age archaeo‐faunal sequence of the Wei River valley. This size reduction was accompanied by an increase of coefficients of variation through the Neolithic. Both of these trends were probably the consequences of pig domestication, and the morphometric differences probably provide evidence for the different stages of pig domestication in this region. Copyright © 2013 John Wiley & Sons, Ltd.     

东周燕文化与周边考古学文化的关系研究(下)

东周时期燕国的考古学文化,发展出具有其自身特色的文化内涵。东周燕文化的存在和发展,与其周边诸考古学文化息息相关,既有时周边考古学文化的文化因素吸收,也从不同程度上对周边考古学文化产生了影响。     

Impacts of Spatial Autocorrelation in Georeferenced Beta and Multinomial Random Variables

The literature is replete with acknowledgments that spatial autocorrelation (SA) inflates the variance of a random variable (RV), and that it also may alter other RV distributional properties. In most studies, impacts of SA have been examined only for the three most commonly used distributions: the normal, Poisson (and its negative binomial counterpart), and binomial distributions; much less is known about its effects on two other RVs that are utilized in GIScience research: the beta and the multinomial. The beta distribution—which is considered to be very flexible because it can mimic a uniform, exponential, sinusoidal, and normal RV—can be utilized to analyze the radiance of a remotely sensed image, for example. The multinomial distribution, a generalization of the binomial distribution, has been widely used for land use classification, and to describe land use change. The literature also suggests that RV impacts of negative SA, a neglected topic in spatial analysis, may differ from those of positive SA, at least for some RVs (e.g., the Poisson RV). The purpose of this article is to extend the investigation of effects of SA to beta and multinomial RVs, with both positive SA and negative SA assessed and contrasted with each other, using simulation experiments. The simulation experiments are designed to support this assessment. One of the major discoveries is that impacts of positive SA and negative SA behave similarly when a RV conforms to a normal distribution; however, maximum negative SA is unable to materialize for asymmetric RV, whereas positive SA always converges upon its maximum.