孔头沟遗址铭文芯与西周铭文制作方法

陕西岐山孔头沟遗址铸铜作坊内出土的一件西周晚期刻字陶范,其上残存3字,皆阴刻、反书。从形制、颜色、字形、浇铸面金属元素成分等方面,判断该范为芯而非模,阴刻字乃底稿线。从铭文字体与格线、制范技术基础、出土铜器铭文等多方面论证,该铭文芯所见西周铭文制作方法,可称为"堆塑泥条芯作铭法"。     

Technological examination of Neolithic-Bronze Age pottery from central and southeast Europe and from the Near East

Scanning electron microscopy is used to examine sequences of pottery sherds from central and southeast Europe, Greece and the Near East spanning the period from the Neolithic to the Bronze Age, in order to obtain information on the ceramic technologies employed in antiquity. On the basis of the vitrification observed and the chemical composition, the types of clay and firing procedures (temperature and atmosphere) employed in the manufacture of the pottery are defined. Two under-lying trends in the associated ceramic technologies are thus identified. The first is based on the use of non-calcareous or “unstable” calcareous clays fired in a reducing atmosphere at temperatures below 800 °C and the second on the use of “stable” calcareous clays fired in an oxidizing atmosphere at temperatures in excess of 800 °C.     

陶寺遗址出土泥质陶器的中子活化分析与研究

本文采用中子活化分析技术对陶寺遗址出土的74件泥质陶器样品进行了分析研究,结果显示出土于遗址不同功能区的泥质陶器在原材料的使用或制作工艺上存在差异性,这或许表明了不同阶层的人所使用的泥质陶器也是有差别的,已经有了贫富贵贱之分。     

Permeability of the Mercia Mudstone: suitability as caprock to carbon capture and storage sites

The Upper Triassic Mercia Mudstone is the caprock to potential carbon capture and storage (CCS) sites in porous and permeable Lower Triassic Sherwood Sandstone reservoirs and aquifers in the UK (primarily offshore). This study presents direct measurements of vertical (k_v) and horizontal (k_h) permeability of core samples from the Mercia Mudstone across a range of effective stress conditions to test their caprock quality and to assess how they will respond to changing effective stress conditions that may occur during CO₂ injection and storage. The Mercia samples analysed were either clay‐rich (muddy) siltstones or relatively clean siltstones cemented by carbonate and gypsum. Porosity is fairly uniform (between 7.4 and 10.7%). Porosity is low either due to abundant depositional illite or abundant diagenetic carbonate and gypsum cements. Permeability values are as low as 10^?20 m² (10nD), and therefore, the Mercia has high sealing capacity. These rocks have similar horizontal and vertical permeabilities with the highest k_h/k_v ratio of 2.03 but an upscaled k_h/k_v ratio is 39, using the arithmetic mean of k_h and the harmonic mean of k_v. Permeability is inversely related to the illite clay content; the most clay‐rich (illite‐rich) samples represent very good caprock quality; the cleaner Mercia Mudstone samples, with pore‐filling carbonate and gypsum cements, represent fair to good caprock quality. Pressure sensitivity of permeability increases with increasing clay mineral content. As pore pressure increases during CO₂ injection, the permeability of the most clay‐rich rocks will increase more than carbonate‐ and gypsum‐rich rocks, thus decreasing permeability heterogeneity. The best quality Mercia Mudstone caprock is probably not geochemically sensitive to CO₂ injection as illite, the cause of the lowest permeability, is relatively stable in the presence of CO₂–water mixtures.     

Pottery firing temperatures: a new method for determining the firing temperature of ceramics and burnt clay

A new method for determining the maximum firing temperature of ceramics and burnt clay is presented. The technique relies on measuring the magnetic susceptibility on a step-wise re-fired sample. The validity of the method has been tested by determining firing temperatures of two sets of clay samples fired at temperatures ranging from 400 to 1000 °C. Aliquots of the same samples have been studied petrographically by optical microscopy on thin sections and analyzed by powder X-ray diffraction in order to monitor structural and mineralogical changes as a function of temperature. The method is demonstrated on samples from four geographically widely different sites and it is applied to a larger set of ceramics of Late (ca. AD 900–AD 1450) and Inca (ca. AD 1480–AD 1532) periods from the Northwestern Argentine region, dating to a limited period of time prior to the fall of the Inca Empire. The method is shown to be a powerful tool in revealing archaeological information about the change in firing technologies in the pre-Hispanic societies in the Andean area through time.     

Global Markets, Local Practice: Ottoman-period Clay Pipes and Smoking Paraphernalia from the Red Sea Shipwreck at Sadana Island, Egypt

Shipwreck archaeology provides unique evidence for trade, commercial relationships, and the day-to-day existence of occupational communities defined by residence and employment within the industrial space aboard a ship. These concerns are addressed particularly well by finds of utilitarian items such as a small assemblage of 21 clay pipes and three other smoking-related artifacts recently excavated from the ca. 1765 Sadana Island ship which sank at anchor while loaded with coffee, porcelain, qulal, and other goods. Analysis of the assemblage specifically contributes to questions of chronology and typology and presents new evidence for regionalism, style, and the impact of far-reaching trade routes on markets with a global perspective.     

The Politics of the Pipe: Clay Pipes and Tobacco Consumption in Galway, Ireland

In this paper, clay pipes and the historical record are used to explore the illicit importation of tobacco in seventeenth-century Galway, Ireland. This is part of a wider tradition of the politics of smoking, including the proliferation of the clay pipe, the widespread smuggling of tobacco, and the overtly political nineteenth-century pipes that touted nationalist emblems. Here, the juxtaposition of the archaeological and historical records locates subversive local agency in the face of overarching colonial mandates. Colonialism, trade, consumption, and identity are linked in an examination of a merchant community's maneuvers through the expanding Atlantic economy and the restricted colonial mandates that marked the world around them.     

四川广汉龙居寺中殿建筑热湿环境特征研究

为了解广汉龙居寺中殿建筑热湿环境特征,采用基于物联网技术的环境温湿度监测系统对建筑空间温度和相对湿度进行监测,分析建筑空间温湿度时空变化规律,评估建筑热湿环境特征,探讨热湿环境对文物保存的影响。结果表明,该建筑对外界环境温湿度变化具有较好的缓冲和隔离作用,建筑内部热湿环境对文物保存不利,主要体现在相对湿度高、波动大,湿度调控将是文物预防性保护的关键。建筑热湿环境为壁画酥碱和霉斑病害主要成因,同时促进了编竹夹泥墙体结构安全问题的发生。研究成果不仅丰富了对四川地区明代编竹夹泥墙木结构古建筑热湿环境特征的认识,而且为该建筑壁画病害和墙体结构安全问题的成因分析提供了依据。     

The Making of Fired Clay Bricks in China Some 5000 Years Ago

Fired bricks are a hard and durable masonry material that has played a major role in the emergence of early human urban civilization. In China, fired clay bricks have been widely used as a building and flooring material since the Qin Dynasty (476?206 bc ), although a few lines of evidence show that fired clay bricks might have been invented as early as 5500 years ago in eastern central China. However, these burnt clumps of clay appear not to be bricks in the strict sense, and our knowledge about the origin of fired clay bricks in China still remains fragmentary. Archaeological excavations at a Middle Neolithic cultural site in northwestern China reveal that the making of fired clay bricks began some 5000 years ago. Our findings also open a window into the process of prehistoric brickmaking in East Asia.     

耀州窑青瓷白色中间层和化妆土的EDXRF光谱分析

为探讨我国北方著名窑场之一的耀州窑唐、五代时期青瓷胎釉化妆土与北宋时期之间白色中间层的区别,利用具有电子探针微区分析功能的能量色散X射线光谱仪测试。结果表明,北宋时期青瓷的中间层和唐、五代的化妆土在化学组成上存在着一些差异。白色中间层中不仅铁的含量比胎釉都低,CaO和K_2O的含量则高于胎,而靠近釉;而化妆土的化学组成除了Fe_2O_3含量较低外,其它化学组成十分接近瓷胎;中间层和化妆土相比,Fe_2O_3的含量更低一些。