Milky Quartz Bipolar Reduction and Lithic Miniaturization: Experimental Results and Archaeological Implications

We present experimental data examining the energetics and identification of axial bipolar reduction in contexts of lithic miniaturization on milky quartz. These experiments answer two specific questions. First, does bipolar reduction provide any benefits over freehand reduction? Second, can axial bipolar reduction be distinguished from freehand reduction? Our data show that bipolar reduction requires significantly less time to reduce a percentage unit of core mass and to produce a millimeter of cutting edge on milky quartz than freehand reduction. Milky quartz bipolar reduction surpasses even the cutting edge production efficiency of obsidian pressure blades. We outline a series of quantitative criteria for identifying bipolar cores and flakes. Our results show that bipolar cores and flakes can be distinguished from those produced using freehand reduction by quantifying platform crushing, distal flake rebound scars, bulb shearing, as well as axial, bipolar, and splintered flake terminations. Our results challenge the widely held perceptions about the wastefulness of bipolar reduction and provide clear guidelines for identifying this reduction strategy in archaeological milky quartz assemblages.     

大遗址考古发掘与保护的几个问题

一、背景大遗址的概念是我国文化遗产保护在全球视野下从近十几年来的遗址保护与管理工作中提出的一个重要概念。尽管这个概念在目前还没有清晰而科学的法定量化界     

Some Observations on Alexios Philanthropenos and Maximos Planoudes

Abstract

The campaign of Alexios Philanthropenos in Asia Minor, and his subsequent rebellion and punishment were among the most dramatic events in the Byzantine Empire in the 1290S. When first he assumed the responsibilities of a general and doux of the Thrakesion theme, Alexios was the great hope of the Emperor, Andronikos II, and of the population of Asia Minor. With his army, the general soon achieved spectacular victories in the Maeander valley. The Turks of the area were defeated, the Greek population took heart, deserted cities and villages were repopulated; he was able to send back to Constantinople the spoils of war, gold and silver and corn, and many captives. Large numbers of Turks, pressed on the other side by the Mongols, preferred to join Philanthropenos' army, and came to form a substantial part of it. To his own followers he gave a considerable portion of the spoils, and this too spurred them on to greater victories. The local population, having at last found a defender, joined him and gave him their loyalty. At Constantinople, the Emperor and Philanthropenos' friends rejoiced at the success of the young and brilliant general.     

宋元时期广东瓷器运输与贸易的考古学观察 ——以窑址以外出土材料为中心

以广东地区宋元时期墓葬、遗址出土瓷器为切入点,可以分析出这些瓷器来自北方、闽浙赣以及华南地区,而且时代不同,其组合也不尽相同.在此基础上,以广东瓷窑产品在华南沿海地区以及外贸路线上的分布为线索,对华南地区瓷窑产品外销路线问题进行细化,讨论了广州港与明州(庆元)港、泉州港在瓷器运输路线上存在着单向或双向的联系,为海上丝绸之路港口兴衰的研究提供了重要的线索.     

Development of the Internet in Russia: Preliminary Observations on Its Spatial and Institutional Characteristics

A geographer specializing in the emerging information-technology sector of the Russian economy presents an exploratory overview of the "widening" and "deepening" of Internet use in Russia during the 1990s and early years of the 21st century. Separate sections of the paper examine the main stages of Internet development in the country to date, explore regional differences in Internet access and use, and outline progress in the installation of surface telecommunications (including fiber optic) trunklines and intra-city networks. Journal of Economic Literature, Classification Numbers: L86, L96, O32. 3 tables, 17 references.     

GIS在内蒙古敖汉旗环境考古研究中的初步应用与探索

本文运用GIS,对敖汉旗汉以前诸考古学文化遗址的分布与地貌、土壤以及地质等环境因素不同类型间的关系进行了定量的分析,并在此基础上对不同的考古学文化与不同环境因素之间的关系进行了初步的探讨.     

辽奚迭刺部及相关问题浅探

奚迭剌部为辽太祖诸部之一,又作迭刺迭达部.本文对其部名及其所居地点予以考证,认为奚迭刺部即奚耶律部,居于辽饶州一带.同时对有的学者提出的奚迭剌部即"奚铁勒部或奚铁骊部"的观点以及所谓此"铁勒"、"铁骊""只能是与'高车'为同义语的铁勒"之说提出了不同看法.并对<金史>中与此相关的两处记载提出了质疑.     

浅释“战国四凤纹镜”的设计、图像与铸造工艺

本文论述的＂战国四凤纹镜＂全面代表了楚文化的精神内涵和审美取向,同时从三个方面反映了战国铜镜的设计、制作水平,再现了当时楚人特有的工艺美术和先进的铸造技术。并且指出对主体凤鸟纹饰的铜镜命名应该更加准确。     

The Legacy of Ian Hunter's Work on Literature Education and the History of Reading Practices: Some Preliminary Remarks

Summary

Ian Hunter's early work on the history of literature education and the emergence of English as school subject issued a bold challenge to traditional accounts that have in the main focused on English either as knowledge of a particular field or as ideology. The alternative proposal put forward by Hunter and supported by detailed historical analysis is that English exists as a series of historically contingent techniques and practices for shaping the self-managing capacities of children. The challenge for the field is to advance this historical work and to examine possible implications for English teaching.     

近年来国际旅游学术期刊和论文选题的特征分析

本文汇集了160种国际旅游学界专业杂志名录,从中遴选出35种常见的旅游专业期刊予以简要介绍,并又在其中选取了20种学术杂志在2005～2006年间发表的1043篇论文进行了选题统计,对旅游和休闲方面的4本最有影响的学术杂志刊载的论文被中外学者引用情况进行了统计。最后,简要探讨了我国旅游学术研究“国际化”的问题。     

Chemical Alteration of Lithic Artefacts: an Experimental Case Study on the effect of Guano on Stone Flakes and Its Contextualization in the Archaeological Assemblage of Azokh Cave (Southern Caucasus)

Chemical weathering of archaeological material is well known; however, while there have been a number of experimental studies demonstrating different types and degrees of chemical alteration on faunal remains, little attention has been paid to stone tools, and the few studies that exist relate mainly to siliceous materials and water‐induced chemical alteration. Azokh Cave, located in the South Caucasus, contains a Middle Pleistocene to Holocene infill, and detailed macro‐ and microscopic examination of the lithic assemblages recovered there indicates potential chemical weathering of the stone artefacts. The cave is also currently home to one of the largest bat colonies in the region, and their guano forms a significant component of the infill of the inner galleries. Based on these two factors, an experimental pilot study was set up to artificially chemically alter a range of stone flakes produced specifically for the task, in order to determine the nature and likely cause of weathering. The experimental flakes, produced from different raw materials, were buried in fresh bat guano for up to two years. The results reported herein demonstrate that in a relatively short time, the highly acidic composition of bat guano strongly affects calcium‐bearing rocks (e.g., limestone, basalt) altering their entire surface. Similar comparisons may be made with chemical alteration evident on archaeological lithics from Azokh Cave, suggesting that bat guano has played a significant role in diagenetic alteration.     

Quantifying 3D Micro‐Surface Changes on Experimental Stones Used to Break Bones and Their Implications for the Analysis of Early Stone Age Pounding Tools

We present a new method to assess use‐wear formation processes of pounding tools used to break bones based on a combination of conventional microscopy, optical 3D surface measurements obtained with a confocal microscope and GIS analysis. The method involves 3D alignment and 3D surface change inspection techniques along with a surface morphometric characterization and 2D spatial pattern analysis, to measure the spatital distribution of significant changes in surface topography of pounding tools. Our results show that microscopic changes can be detected in the surfaces of hammers and anvils after bone breakage activities are performed. Use‐wear on the active elements (hammers made on basalt and quartzite) occurred over a larger area than was observed on the passive element (quartzite anvil), but the latter often exhibited deeper modifications. Tool surfaces generally developed smoother topography with increased use, but grain microfracture also appeared with greater frequency over time. This methodology offers highly accurate and statistically robust analyses of microscopic use‐wear traces that can be applied to the analysis of archaeological pounding tools.     

秦陵百戏俑坑土遗址纵向水盐运移的模拟土柱实验研究

风化盐析是影响土遗址最为严重的病害之一。了解不同深度处土遗址可溶盐的含量以及变化规律可为土遗址的盐析病害提供理论依据和技术支撑。为此,本实验采用有机玻璃土柱装置和应用EM50传感器探头监测土柱不同深度处的含水率、电导率的变化规律,并结合实验室分析测定了不同时间土柱表面的含盐种类以及含盐量、不同深度处的含盐量等。结果表明,不同深度处土样的含水率越小电导率越大,且土壤表面的含水率最小,电导率最大;利用离子色谱法测定结果表明,除K+之外,Na~+,Mg~(2+),Ca~(2+),Cl-and SO_4~(2-)的含量随深度的变化趋势与含盐量随深度的变化趋势一致。本研究可为土遗址盐析病害的防治提供理论参考。     

Observations on the Progress of the Art of Sculpture in England,in Medieval Times,and Notices of Some Artists,by Whom it was Practised

Although the town defences (particularly the gates) of Rye and Winchelsea (East Sussex) are well known, the evidence for other fortifications there has been neglected. In the thirteenth century, it appears that the Crown planned to build castles at both places; the resulting towers are analysed in detail.