1. Introduction The bronze swords were somewhat important in ancient China. Its alloy constituent analysishas been carried out by some scientist with modern technique. Afterwards, a series of work havebeen published. ...1. Introduction The bronze swords were somewhat important in ancient China. Its alloy constituent analysishas been carried out by some scientist with modern technique. Afterwards, a series of work havebeen published. The main results are: (1) the sword materials are Pb-Sn-bearing bronze with tincontent at 15~19%; (2) it is cast alloy mainly; (3) the rhombus pattern on the sword of Yue King展开更多
Northern Anhui was an important region for diverse bronze culture convergence and extensive metal resource circulation in the Pre-Qin Period.In this paper,metallographic microstructure analysis,chemical composition an...Northern Anhui was an important region for diverse bronze culture convergence and extensive metal resource circulation in the Pre-Qin Period.In this paper,metallographic microstructure analysis,chemical composition analysis,and lead isotope ratio analysis were conducted on 12 samples of 6 Warring States Period(476–221 BCE)bronze vessels excavated from Chutai Cemetery M1,Fuyang,Anhui Province,revealing the integrated application of diversified manufacturing processes,such as casting,forging,cold working,and welding and multiple metal minerals.The analytical results showed that 2 Ding vessels(鼎)were made by casting,and 2 He vessels(盒)and 2 Dui vessels(敦)were made by forging followed by cold working.These two types of bronze vessels made by different manufacturing processes have significantly distinct alloy ratios and mineral sources,among which the Cu and Sn contents of the 2 cast bronze vessels are lower and the Pb content is higher,while the Cu and Sn contents of the 4 forged bronze vessels are higher and the Pb content is lower.The lead minerals of the two types of bronze vessels might come from Western Henan and the middle and lower reaches of the Yangtze River,respectively.In addition,the 3 pieces of solder used to weld bronze vessels were all made of pure Sn,their metal minerals should come from the densely distributed area of tin ore in Southern China,and Sn solders were mainly discovered in the Chu culture area during the Eastern Zhou Period.展开更多
Thomas Hobbes(1588-1679)put forward"state of nature",a term of political theory which had completely changed the Western political philosophy. Deeply influenced by this concept, Daniel Defoe(1660-1731) showe...Thomas Hobbes(1588-1679)put forward"state of nature",a term of political theory which had completely changed the Western political philosophy. Deeply influenced by this concept, Daniel Defoe(1660-1731) showed us an island of the state of nature in his Robinson Crusoe. A print of man's foot on the sand, which evoked Robinson's fear, had become a symbol of the state of nature for Robinson's life on the island, and finally brought him a"state of war".展开更多
A total of 1362 archaeological sites from the Paleolithic Age to the Warring States time in Hubei Province increase gradually from west to east and from high land to low land.The number of Paleolithic sites with altit...A total of 1362 archaeological sites from the Paleolithic Age to the Warring States time in Hubei Province increase gradually from west to east and from high land to low land.The number of Paleolithic sites with altitude of 50-500 m account for 78% of the whole,while 71%-95% of sites from the Neolithic Age to the Warring States time mainly distribute at the areas of 0-200 m.The temporal-spatial distribution of archeological sites in this area is affected by two factors.For one thing,the human beings of every period need to choose the first or the second terrace as living sites which are near water source and are easy to withstand flood.Additionally,affecting by the regional tectonic uplift since the Holocene,down cutting of rivers can form new river valley,and lateral erosion and accumulation of river in stable time of tectonic movement can result in increasing of many new terraces.So,the human beings migrated to adapt to the change of terrace location,leading to the sites increase gradually in the lower areas of the central and eastern parts of this province.For other things,the temporal-spatial distribution of archeological sites in this area is affected by the climate condition.The Paleolithic sites mostly distribute in the Hanshui River Valley in northeastern Shiyan,southeast of Jinzhou and east of Jinmen,which is because rivers distributed in higher areas in this period.During the Chengbeixi Culture period,the sites are rare in the quondam Paleolithic sites distribution area,but increase obviously along the Yangtze River near the southwest Yichang.The spore-pollen record of Dajiuhu Basin indicates that only 23 Chengbeixi cultural sites may be related to more precipitation and flood during the Holocene wet and hot period.The Daxi Culture,Qujialing Culture and Shijiahe Culture are corresponding to middle and top of the Dajiuhu spore-pollen Zone Ⅳ,during which the climate is in order as a whole and is propitious to agricultural development.In the Qujialing Culture period,32 of original 34 Daxi cultural sites disappeared,while 90 sites increase abruptly in the higher highlands in the north of Xiangfan-Jinmen-Xiaogan,which may respect with enlarging of water areas.The Chu Culture period is corresponding to Dajiuhu spore-pollen Zone V,which is in warm and dry Holocene phase,but it seems that the climate condition is still propitious to agricultural cultivation and the number of archeological sites increase heavily to 593.In addition,there are the least archaeological sites in the lake areas of southeast Hubei Province because of low-lying topography with altitude of 0-50 m and the severest flood.展开更多
The typical morphology of alloy lead(Pb) in ancient bronzes made in the Spring-Autumn Warring States Period(770 B.C.-221 B.C.),China,was examined by using electron microscopic techniques.We propose that the main p...The typical morphology of alloy lead(Pb) in ancient bronzes made in the Spring-Autumn Warring States Period(770 B.C.-221 B.C.),China,was examined by using electron microscopic techniques.We propose that the main purposes for adding metallic Pb in a large quantity into ancient bronzes,such as arrows and ritual vessel-Ding,were for increasing weight and economical reasons.In order to promote adding efficiency and improve casting quality for getting homogenously distributed Pb particles in the bronzes,a process through inserting Pb rod into the mold is supposed to be used during casting,which provided a process for preventing Pb sinkage.Scanning electron microscope(SEM) observations from the fracture surface of the bronzes revealed that the Pb particle possessed a "hollow-cored bubble" structure,which was formed due to absorbing casting gases during solidification and therefore indirectly eliminated the casting porosity and loosen.展开更多
文摘1. Introduction The bronze swords were somewhat important in ancient China. Its alloy constituent analysishas been carried out by some scientist with modern technique. Afterwards, a series of work havebeen published. The main results are: (1) the sword materials are Pb-Sn-bearing bronze with tincontent at 15~19%; (2) it is cast alloy mainly; (3) the rhombus pattern on the sword of Yue King
基金supported by the National Natural Science Foundation of China(Grant No.41303080)the Youth Promotion Association of the Chinese Academy of Sciences(Grant No.2018499)the National Key R&D Program of China(Grant No.2022YFF0903700)。
文摘Northern Anhui was an important region for diverse bronze culture convergence and extensive metal resource circulation in the Pre-Qin Period.In this paper,metallographic microstructure analysis,chemical composition analysis,and lead isotope ratio analysis were conducted on 12 samples of 6 Warring States Period(476–221 BCE)bronze vessels excavated from Chutai Cemetery M1,Fuyang,Anhui Province,revealing the integrated application of diversified manufacturing processes,such as casting,forging,cold working,and welding and multiple metal minerals.The analytical results showed that 2 Ding vessels(鼎)were made by casting,and 2 He vessels(盒)and 2 Dui vessels(敦)were made by forging followed by cold working.These two types of bronze vessels made by different manufacturing processes have significantly distinct alloy ratios and mineral sources,among which the Cu and Sn contents of the 2 cast bronze vessels are lower and the Pb content is higher,while the Cu and Sn contents of the 4 forged bronze vessels are higher and the Pb content is lower.The lead minerals of the two types of bronze vessels might come from Western Henan and the middle and lower reaches of the Yangtze River,respectively.In addition,the 3 pieces of solder used to weld bronze vessels were all made of pure Sn,their metal minerals should come from the densely distributed area of tin ore in Southern China,and Sn solders were mainly discovered in the Chu culture area during the Eastern Zhou Period.
文摘Thomas Hobbes(1588-1679)put forward"state of nature",a term of political theory which had completely changed the Western political philosophy. Deeply influenced by this concept, Daniel Defoe(1660-1731) showed us an island of the state of nature in his Robinson Crusoe. A print of man's foot on the sand, which evoked Robinson's fear, had become a symbol of the state of nature for Robinson's life on the island, and finally brought him a"state of war".
基金National Natural Science Foundation of China, No.40971115 University Doctoral Foundation, No.20090091110036+3 种基金 Open Foundation of the State Key Laboratory of Loess and Quaternary Geology from the Institute of Earth Environment, CAS, No.SKLLQG0817 Test Foundation of Modem Analyses Center of Nanjing University, No.0209001309 Foundation of the Ministry of Science and Technology of the People's Republic of China, No.2010BAK67B02 Scientific Research Foundation of Graduate School of Nanjing University, No.2011CL 11 Acknowledgements The authors would like to thank Prof. Wang Hongxing, Prof. Meng Huaping, Prof. Zheng Chaogui and Mr. Liu Hui for their comments in the process of sorting out materials and preparing this manuscript.
文摘A total of 1362 archaeological sites from the Paleolithic Age to the Warring States time in Hubei Province increase gradually from west to east and from high land to low land.The number of Paleolithic sites with altitude of 50-500 m account for 78% of the whole,while 71%-95% of sites from the Neolithic Age to the Warring States time mainly distribute at the areas of 0-200 m.The temporal-spatial distribution of archeological sites in this area is affected by two factors.For one thing,the human beings of every period need to choose the first or the second terrace as living sites which are near water source and are easy to withstand flood.Additionally,affecting by the regional tectonic uplift since the Holocene,down cutting of rivers can form new river valley,and lateral erosion and accumulation of river in stable time of tectonic movement can result in increasing of many new terraces.So,the human beings migrated to adapt to the change of terrace location,leading to the sites increase gradually in the lower areas of the central and eastern parts of this province.For other things,the temporal-spatial distribution of archeological sites in this area is affected by the climate condition.The Paleolithic sites mostly distribute in the Hanshui River Valley in northeastern Shiyan,southeast of Jinzhou and east of Jinmen,which is because rivers distributed in higher areas in this period.During the Chengbeixi Culture period,the sites are rare in the quondam Paleolithic sites distribution area,but increase obviously along the Yangtze River near the southwest Yichang.The spore-pollen record of Dajiuhu Basin indicates that only 23 Chengbeixi cultural sites may be related to more precipitation and flood during the Holocene wet and hot period.The Daxi Culture,Qujialing Culture and Shijiahe Culture are corresponding to middle and top of the Dajiuhu spore-pollen Zone Ⅳ,during which the climate is in order as a whole and is propitious to agricultural development.In the Qujialing Culture period,32 of original 34 Daxi cultural sites disappeared,while 90 sites increase abruptly in the higher highlands in the north of Xiangfan-Jinmen-Xiaogan,which may respect with enlarging of water areas.The Chu Culture period is corresponding to Dajiuhu spore-pollen Zone V,which is in warm and dry Holocene phase,but it seems that the climate condition is still propitious to agricultural cultivation and the number of archeological sites increase heavily to 593.In addition,there are the least archaeological sites in the lake areas of southeast Hubei Province because of low-lying topography with altitude of 0-50 m and the severest flood.
基金Supported by the National Natural Science Foundation of China(J1210061)
文摘The typical morphology of alloy lead(Pb) in ancient bronzes made in the Spring-Autumn Warring States Period(770 B.C.-221 B.C.),China,was examined by using electron microscopic techniques.We propose that the main purposes for adding metallic Pb in a large quantity into ancient bronzes,such as arrows and ritual vessel-Ding,were for increasing weight and economical reasons.In order to promote adding efficiency and improve casting quality for getting homogenously distributed Pb particles in the bronzes,a process through inserting Pb rod into the mold is supposed to be used during casting,which provided a process for preventing Pb sinkage.Scanning electron microscope(SEM) observations from the fracture surface of the bronzes revealed that the Pb particle possessed a "hollow-cored bubble" structure,which was formed due to absorbing casting gases during solidification and therefore indirectly eliminated the casting porosity and loosen.