试论楚国铁器的使用和发展

我国出土的早期铁器大都集中于楚国,目前出土的楚国早期铁器从上个世纪70年代的10余件增加到40余件,时代上限从春秋晚期上溯到了春秋中期。楚国最早的铁器发现在今鄂西,开始使用的铁器主要为农具,还有一些小型利器。至春秋晚期,楚国已有了锻造的铁器。楚国铁器,从战国初开始容器变大,刀剑变长,新器形大量出现。到战国中期,精工铁器和铜铁合铸的铁足铜鼎流行。楚国大约从春秋中期开始冶铁、用铁,到春战之交,社会已进入了铁器时代。     

汉诸侯王陵墓出土铁器的比较

对徐州狮子山西汉楚王陵、永城保安山西汉梁王墓等7座汉王陵出土铁器的种类、材质、制作技术及功能进行了比较研究,探讨了汉代钢铁技术的发展状况、技术特征等问题。狮子山楚王陵5件炒钢制品的发现表明西汉早期(公元前2世纪中叶）已经发明了炒钢技术,是迄今为止最早的;块炼铁、块炼渗碳钢、生铁、铸铁退火、铸铁脱碳钢、炒钢、局部淬火、冷加工等多种钢铁冶炼和热处理工艺在西汉王陵出土铁器中都得到了广泛的应用,表明西汉时期钢铁技术有了较大发展,当时工匠对钢铁性能的认识提高到新的水平。     

Elite Strategies and the Spread of Technological Innovation: The Spread of Iron in the Bronze Age Societies of Denmark and Southern Korea

I look at the process and speed of innovation spread, examining the economic aspects from the perspective of those who adopt the innovation. Defining innovation adoption as an investment which requires initial cost and risks, I argue that at the time of introduction of a new technology that is expected to have socioeconomic importance, elites of adopting societies try to avoid the initial cost and risks of adoption, actively intervening in the process of its spread. Thus, it is crucial to analyze the strategies and needs of elites, which strongly influence the speed of spread. One of these strategies is to change innovation's role by locating the innovation in a different realm of economy. Comparing the spread of iron technology in the Danish and southern Korean Bronze Ages, I demonstrate that differences in what elites needed to obtain through iron technology in different contexts critically affected the speed and process of iron spread into the two regions.     

汉代岭南农业发展的地域差异

汉代岭南农业发展的地域差异体现在时问、农作物、农业技术以及特定地域范围等众多方面。汉代岭南地区按农业发展水平的高低,可依次分为东部、中部和西南部三大地域。东部地域主要指南海郡,这是汉代岭南地区农业发展水平最高的地域,其中尤以番禺一带更为突出;中部地域主要包括苍梧郡、郁林郡和合浦郡等,这是汉代岭南地区农业发展水平较高的地域;西南部地域主要包括交趾郡、九真郡、日南郡和今海南岛等,这是汉代岭南地区农业发展水平较低的地域。     

鲁山望城岗冶铁遗址的冶炼技术初步研究

本文通过对河南鲁山望城岗,台铁遗址出土和采集的冶铁遗物的综合分析,证明该遗址是个集冶炼、铸造和炼钢为一体的大型工场,持续时间较长,具体工艺表现为采用选好的褐铁矿在高炉中炼出生铁,然后铸成器物,存在脱碳制钢的处理工艺,并且在冶炼时可能使用了煤炭作为燃料。     

Early ironworking in Iron Age South India: New evidence for the social organization of production from northern Karnataka

Abstract

Iron production was integral to political and ritual practices during the South Indian Iron Age (ca. 1200–300 b.c.), yet the investigation of the social relations of metals production during this period has been overshadowed by studies of iron consumption, particularly of iron objects in megalithic mortuary contexts. Recent archaeological research in the Tungabhadra River Corridor, Karnataka, has revealed iron production debris within and between settlements in more ephemeral occupational contexts, such as rockshelters. One notable discovery is the earliest ironworking facility in South India at Bukkasagara. The regional pattern suggests that iron production involved at least two classes of specialist producers—smelters and smiths—who exercised varying degrees of control over the practice and products of their craft. It also suggests that iron production was an important component in the construction and negotiation of Iron Age social differences, affiliations, and inequalities.     

The Sail of the Swedish Merchantman Jeanne‐Élisabeth,Wrecked off Montpellier,France, in 1755

A folded sail was found stowed in the hold of the Swedish‐registered merchantman Jeanne‐Élisabeth, which ran aground off Montpellier in a storm in 1755. Surviving sails from any period are rare. The structure of the recovered portion of sail and its associated cordage is described and discussed in the context of differing traditions and technological evolutions of the period. Recovery, recording and initial conservation techniques are discussed in an appendix . © 2011 The Authors     

Iron precipitation in a natural CO2 reservoir: Jurassic Navajo Sandstone in the northern San Rafael Swell,UT, USA

Diagenetic iron (oxyhydr)oxide minerals are common precipitates expected in CO₂ reservoirs, and these minerals record fluid flow for application to carbon capture and sequestration (CSS). Multiple mineralogy and spectroscopy analyses on a pore to meter scale characterize a well‐exposed, lithologically controlled, iron (oxyhydr)oxides reaction front in the Jurassic Navajo Sandstone. Dolomite is the most prevalent cement (up to 23 area%), followed by only several percent or less of iron (oxyhydr)oxides, kaolinite, illite, and gypsum cements. Bulk geochemistry based on diagenetic mineralogies in the reaction front is compared with the water chemistry from nearby modern spring effluent emanating from the Navajo Sandstone to conclude that similar fluids (i.e., CO₂‐charged, saline waters containing hydrocarbons) are responsible for the precipitation. A second comparison of bulk geochemistry and diagenetic mineralogies of the reaction front with data from other abundant Navajo Sandstone concretions in the Spencer Flat region (in south central Utah) shows that reservoir fluids likely vary spatially and temporally in the porous and permeable Navajo Sandstone. CO₂ injection into porous and permeable, quartz arenite, saline aquifers will likely result in minor clay and abundant dolomite precipitation that will significantly decrease porosity.     

Assessing the Impact of Typhoons on Historic Iron Shipwrecks in Chuuk Lagoon Through Changes in the Corrosion Microenvironment

The corrosion microenvironment of a dozen Second World War iron shipwrecks in Chuuk Lagoon, Federated States of Micronesia, was investigated to see if there were any measurable changes caused by a recent major typhoon. Seven previously inspected wreck sites were used for calibration to assess the environmental impacts. Five new wrecks, including the Fumitzuki, a destroyer of the Imperial Japanese Navy, were assessed at up to twice the depth of previous studies. The new data showed that the logarithm of the corrosion rate falls linearly with depth to 36 m. Measurements of corrosion potentials, concretion thickness and pH showed that many of the vessels suffered partial deconcretion during the typhoon Maysak in April 2015 with concomitant increases in the rate of decay. Regrowth of the colonising marine organisms are presently ameliorating the impact of the typhoon.     

丸都山城高句丽铁器的金相与工艺

为探讨高句丽铁器加工业发展状况以及魏晋南北朝时期钢铁技术水平,利用金相显微镜对吉林省集安市丸都山城遗址出土铁器样品进行金相学检测及工艺研究,并结合以往高句丽铁器检测结果进行讨论。检测结果表明,工匠制造铁器时采用了"生铁淋口"、铸造后脱碳退火、铸铁脱碳钢材料锻打成型、锋刃部淬火、熟铁、低碳钢等不同材质的锻接、折叠锻打等加工技术。铁镞03JWN2T105②:12是迄今为止应用"生铁淋口"工艺的最早实例,将这种工艺的使用年代,前推至魏晋南北朝时期,相对于明代文献的明确记载提前1000年左右,相对于已报道的宋代实例早600余年,其发明时间应该还在此之前,该项发现对构建魏晋南北朝时期钢铁技术发展序列,具有十分重要的意义。