旧时工业重镇

<正>在《世界遗产名录》上,不少历史城区因工业兴起,又因工业销声匿迹,它们见证了人类巨大变革时期社会的日常生活,也记录了普通工人难以忘怀的人生,成为社会认同感和归属感的基础。欧鲁普雷图历史名镇巴西列入《世界遗产名录》时间:1980年列入标准:(i)(iii)欧鲁普雷图(Ouro Preto)在葡语中是黑色黄金的意思,古镇位于巴西东南部的米纳斯吉拉斯州,始建于1698年,是18世纪淘金热和巴西黄金时代的焦点。到了19世纪,当地金矿资源日渐枯竭,     

Lead isotope analysis of intra‐skeletal variation in a 19th century mental asylum cemetery: diagenesis versus migration

Living bone sequesters environmental lead (Pb) from both inhalation and ingestion, providing a record of Pb exposure over a lifetime. Questions about the effects of diagenesis and how to remove them have hampered most isotopic and elemental determinations. As a result, researchers often restrict their analyses to tooth enamel, despite its limitations. We report Pb isotopes in teeth and bones in a frontier population of 15 individuals from a late 19th century mental hospital graveyard in Pueblo, Colorado, a town active at that time in the smelting of ores. Analysis of lead isotopes sequestered in healing bone from rib fractures gives an isotopic fingerprint from the last few months of individual's lives. When bone tissues or teeth from different stages of life are analysed, life history trajectories such as migration routes can be developed which are partially self‐correcting for diagenesis. Copyright © 2005 John Wiley & Sons, Ltd.