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181.
关于秦始皇帝陵出土彩绘青铜水禽铜矿料来源的研究,对进一步研究秦代的物质文化、青铜器冶铸工艺、装饰工艺以及铜矿来源均具有重要意义。本研究对部分秦始皇帝陵园出土彩绘青铜水禽基体进行了铅同位素分析及微量元素分析。并在此基础之上,与甘肃东部及关中西部出土的部分早期秦文化铜器、国墓地出土的部分铜器、周原李家铸铜作坊出土的部分铜器、山西中条山、江西瑞昌、江西铜岭、安徽铜陵以及湖北大冶铜绿山古铜矿以及秦岭山区的部分现代铜矿的相关数据进行了对比研究。结果发现,秦始皇帝陵园出土的青铜水禽使用了相同的矿料,且与绝大多数早期秦文化铜器所使用的矿料基本相同,但与国墓地以及李家铸铜作坊出土西周铜器的矿料明显有别。秦人使用的铜矿与秦岭山区现代铜矿较为接近,表明秦人的铜矿来源可能与秦岭山区有关。  相似文献   
182.
本研究旨在研究秦始皇帝陵园出土彩绘青铜水禽锈体的结构形貌及其形成原因。采用扫描电镜能谱(SEMEDS)、X射线荧光光谱(XRF)、金相显微分析和离子色谱分析(IC)等多种分析手段,对青铜水禽锈体的组织结构及其埋藏土壤进行了分析检测。结果表明:高湿、火烧、人为破坏的特殊埋藏环境是该批青铜水禽严重矿化的主要原因,而有些矿化严重的部分为稳定的粉状锈蚀物,并非传统意义上的“有害锈”;从组织的微观腐蚀特征来看,铸态枝晶结构的样品α相优先腐蚀;而铸后受热组织则呈晶间腐蚀的特点,腐蚀由晶粒间界向晶粒发展;锈体层状结构的产生与Cu2O溶解产生空隙,并在合适的环境条件下生成了孔雀石有关。  相似文献   
183.
为探索先周时代以至西周初年周人的活动地域和陇东地区先周文化的发展历史,运用光学金相显微镜、扫描电子显微镜和能谱仪,对甘肃崇信于家湾出土的先周至西周早中期16件青铜器的金相组织、合金成分和制作工艺进行研究。发现有13件为低锡青铜,3件为高锡青铜;就制作材质而言,共有锡青铜5件,铅锡青铜8件,铅青铜、CuS- nPbAs四元合金和CuSnPbFe四元合金各1件;其中4件经热锻加工制成,12件为铸造加工制成。5件铜盆中的4件是目前经金相分析确认的最早的锻打成形青铜容器。本工作为甘肃地区先周至西周时期青铜器和青铜文化研究提供了重要的科学信息。  相似文献   
184.
为探求符合文物保护要求的青铜器保护处理方法,对青铜病形成的过程和原因进行了模拟小孔腐蚀实验研究。对青铜模拟闭塞电池内的化学和电化学状态的变化,进行了不同Cl~-浓度和不同的pH值溶液条件下的电化学测试。实验结果证明,青铜闭塞孔穴腐蚀能导致蚀孔内Cl~-浓缩,pH值降低,腐蚀电流增大,局部腐蚀的加速,导致青铜病的形成。青铜病的闭塞孔穴腐蚀特征的研究,对进一步探求符合文物保护要求的青铜器保护处理方法具有较好的理论指导意义。  相似文献   
185.
This article outlines recent advances in establishing and understanding the prehistoric sequence in mainland Southeast Asia. Research has been unevenly distributed, varying from virtually none in Cambodia to a marked intensity in Hong Kong and the adjoining mainland. A new pattern is becoming apparent, due in no small part to the new findings in southern China. It is argued that despite its long history of occupation, beginning withHomo erectus almost a million years ago, tropical Southeast Asia was occupied by scattered inland groups and larger, possibly sedentary coastal foragers until exposed to intrusive agricultural societies during the third millennium BC. These communities, which originated ultimately in the Yangzi Valley, brought with them rice cultivation and were responsible for the wide distribution of Austroasiatic languages. The three divisions of this language superfamily are now distributed from eastern India to southern China. Following a relatively brief Neolithic period, small and autonomous communities, particularly in Lingnan and Bac Bo (Guangdong and Guangxi provinces of China and the area of the Red River Delta), were exposed to exchange contact with the Shang state of the Chinese Central Plains, and this brought exotic jades and bronzes. Within this context, a local bronze industry was established between 1500 and 1000 BC over much of Southeast Asia, but without any obvious social developments until the middle of the first millennium BC, when several major changes occurred. These incorporated iron smelting and forging and exposure in the southern parts of the region to Indian mercantile contact and along the northern margins to the expanding Chinese empire. Adaptations varied regionally, from the establishment of warrior chiefdoms to counter the Chinese to the construction of water control systems in the arid heart of Southeast Asia to alleviate environmental unpredictability. It is within these regional changes that we can identify trends toward the establishment of states, some of which persisted in an unbroken lineage to the present.  相似文献   
186.
In this article, we present the results of application of petrographic and neutron activation analyses to a group of pottery fragments dating to the 12th century BCE deriving from ancient Eleon (Boeotia, Greece) as a means of investigating regional and interregional networks in which the site participated. Production centres in Boeotia and central Euboea provided, as could be expected, the majority of sampled pottery across various shapes. A number of more distant areas, however, such as eastern Attica, the Cyclades, Macedonia, and western Crete, are also documented in the present study, suggesting their products were available to local consumers at ancient Eleon. These results are discussed with reference to consumer preferences and exchange networks operating at that time. Finally, some of the identified petrographic and chemical groups can be securely identified at the macroscopic level, allowing us to arrive at conclusions pertinent to a substantial part of the entire pottery assemblage.  相似文献   
187.
对12件山东古代青铜镜进行了金相分析,其中6件为铸态,6件为热处理态,热处理的基本特征是:观察面上可看到许多明晃的交叉状物和不太明显的晶界状、环链状物。这与我国古镜的特征组织是一种“两端尖锐的长条状及针状”物之说是不相符的。  相似文献   
188.
Recent research by Chinese archaeologists has identified many late prehistoric (2000-400 B.C.) oases, pastoral settlements, and cemeteries in eastern Central Asia (Xinjiang province of China). The synthesis presented here organizes the data into 10 archaeological cultures, defined on the basis of ceramics, burials, small finds, and architecture. The archaeological cultures reveal two periods, corresponding to the Bronze Age and the Iron Age. The oases cultures formed a core area before the Chinese Han period and maintained close contacts with nearby highland pastoralists in Siberia and western Central Asia. The evidence for interaction between Xinjiang and the complex cultures in China and western Central Asia is evaluated with regard to the origins of the early Xinjiang cultures.  相似文献   
189.
杭州萧山老虎洞东周遗址出土两件青铜工具,工具出土时已碎裂为数段,锈蚀状态严重。针对两件青铜工具的研究,主要从微观领域来探讨青铜工具的工艺技术及腐蚀特点,并通过建立电化学反应模型,运用电极电位差的理论,来试析电极电位对金相组织腐蚀的影响。同时提出在青铜修复时,可利用电极电位的原理来补配修复材料,以达到文物保护的目的。  相似文献   
190.
Between 2010 and 2012, the AROURA project conducted magnetometric prospection in the ancient polder around the Late Bronze Age (ca. 1300–1190 b.c.) fortress of Glas, mainland Greece. As had been hypothesized, the anomalies detected were consistent with a system of agricultural fields. This system appears to have been irrigated and drained through previously identified hydraulic mechanisms in and around the polder. Comparison of soil profiles of anomalies with those of background areas, including their magnetic susceptibilities, corroborated magnetometric data. Anomalies were traced from sampled to unsampled areas through corresponding reclassified satellite bandwidths. Constituent sediments of features discovered were dated to the Late Bronze Age through AMS radiocarbon and OSL analyses. The results validated the use of extensive geophysics to detect and investigate ancient agricultural landscapes.  相似文献   
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