A data base of lead isotope ratio of ancient Chinese bronzes is set up. There are 2 888 members, including bronze objects, casting remains, and related ores, etc. in the file. The file contents of data base are made f...A data base of lead isotope ratio of ancient Chinese bronzes is set up. There are 2 888 members, including bronze objects, casting remains, and related ores, etc. in the file. The file contents of data base are made from analysis work on Chinese bronze previously carried out in several laboratories in China, Japan and USA. The main body of the file contents is formed from records, analysis data, reference documents, and images. The data base is designed for sharing information in provenance study on raw metal material for bronze production in China Bronze Age.展开更多
扬子鳄现今生活在长江下游地区,但是在龙山时代(5000~4000 BP cal.)黄河流域多处遗址中发现了扬子鳄骨板。为判断龙山时代华北地区的扬子鳄是本地生长还是来自与长江流域的贸易交换,本研究对芮城清凉寺、邹平丁公、泗水尹家城3处遗址出...扬子鳄现今生活在长江下游地区,但是在龙山时代(5000~4000 BP cal.)黄河流域多处遗址中发现了扬子鳄骨板。为判断龙山时代华北地区的扬子鳄是本地生长还是来自与长江流域的贸易交换,本研究对芮城清凉寺、邹平丁公、泗水尹家城3处遗址出土的7例鳄鱼骨板进行了Sr、C和O同位素分析。3处遗址鳄鱼骨板的87Sr/86Sr值均落入当地Sr同位素背景范围内,且山东样本的δ18O比值高于山西样本,符合δ18O值由内陆向沿海升高的趋势,证明这些扬子鳄个体属于本地物种的可能性很大。扬子鳄骨板的δ13C值都明显高于世界其他内陆地区淡水系统的鳄鱼,显示出复杂的饮食特征。上述结果有助于深入了解不同时期扬子鳄的地理分布变迁,对重建距今四千多年前华北地区的古环境具有重要意义,同时也对龙山先民与扬子鳄的关系提出了新的疑问。展开更多
文摘A data base of lead isotope ratio of ancient Chinese bronzes is set up. There are 2 888 members, including bronze objects, casting remains, and related ores, etc. in the file. The file contents of data base are made from analysis work on Chinese bronze previously carried out in several laboratories in China, Japan and USA. The main body of the file contents is formed from records, analysis data, reference documents, and images. The data base is designed for sharing information in provenance study on raw metal material for bronze production in China Bronze Age.
文摘扬子鳄现今生活在长江下游地区,但是在龙山时代(5000~4000 BP cal.)黄河流域多处遗址中发现了扬子鳄骨板。为判断龙山时代华北地区的扬子鳄是本地生长还是来自与长江流域的贸易交换,本研究对芮城清凉寺、邹平丁公、泗水尹家城3处遗址出土的7例鳄鱼骨板进行了Sr、C和O同位素分析。3处遗址鳄鱼骨板的87Sr/86Sr值均落入当地Sr同位素背景范围内,且山东样本的δ18O比值高于山西样本,符合δ18O值由内陆向沿海升高的趋势,证明这些扬子鳄个体属于本地物种的可能性很大。扬子鳄骨板的δ13C值都明显高于世界其他内陆地区淡水系统的鳄鱼,显示出复杂的饮食特征。上述结果有助于深入了解不同时期扬子鳄的地理分布变迁,对重建距今四千多年前华北地区的古环境具有重要意义,同时也对龙山先民与扬子鳄的关系提出了新的疑问。
