Свинец рассказывает историю


Автор сообщения: gorm
Дата и время сообщения: 20 September 2006 at 02:11:43:

Здесь уже обсуждались исследования отложений тяжелых металлов в ледниках, позволяющие проследить историю человечества. Мне попалась любопытная статья, в которой отложения свинца исследованы в прибрежных отложениях для восстановления истории одного города - Александрии.
Вероятно, я выложу эту статью на сайте. Пока абстракт и картинка.


GEOPHYSICAL RESEARCH LETTERS, VOL. 33, L06409, doi:10.1029/2006GL025824, 2006

Pollutant lead reveals the pre-Hellenistic occupation and ancient growth of Alexandria, Egypt

A. Véron, J. P. Goiran, C. Morhange, N. Marriner, J. Y. Empereur

Abstract

It is generally accepted that Alexandria ad Aegyptum was founded ex nihilo in 331 BC by Alexander the Great, rapidly growing into one of antiquity's most opulent economic and intellectual centers. However, ancient texts by Strabo (17.1.6) and Pliny (NH 5.11.62) suggest the existence of a pre-Hellenistic settlement named Rhakotis. This literary evidence has fuelled contentious scholarly debate for decades. Here we present new geochemical data from Alexandria's ancient bay sediments, elucidating unequivocal proof for pollutant lead (Pb) input into the harbor during the Egyptian Old Kingdom (2686–2181 BC). A second contamination peak is detected during the Iron Age (1000–800 BC), at the end of the prosperous Ramesses reigns. These findings evidence thriving pre-Hellenistic settlements in Alexandria. During the Greek and Roman periods, we expound the largest Pb pollution ever encountered in ancient city sediments with Pb levels twice as high as those measured in contemporary industrialized estuaries.




2438. Свинец рассказывает историю - gorm 02:11 20.09.06 (5)
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