翻訳と辞書 Words near each other ・ Zazul ・ Zazun ・ Zazzau ・ Zazzle ・ Zazzo ・ Zazà ・ Zaï ・ Zaïbo ・ Zaïde, reine de Grenade ・ Zaïnga ・ Zaïr Kedadouche ・ Zaïre (play) ・ Zaïre. Revue Congolaise—Congoleesch Tijdschrift ・ Zaïrite ・ Zaïs ・ Zaña Valley ・ Zañartu ・ Začarani krug ・ Začarani krug tour ・ Začnimo znova ・ Začret ・ Začula ・ Zağaaltı ・ Zağalı ・ Zağarlı, Yüreğir ・ Zağlı ・ Zağulba Bağları ・ Zaķumuiža ・ Zaķusala ・ Zaļa birze Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Zaña Valley ： ウィキペディア英語版 Zaña Valley Zaña Valley is an archaeological site in northern Peru, which contains the earliest known canals in South America. These were small preceramic stone-lined canals which drew water from uphill streams in the Andes Mountains region. Archaeologists believe that the canals were used 4,500 years ago and as early as 6,700 years ago. Accelerator Mass Spectrometer dating of aggregate flecks of charcoal from the oldest canal dated to 6705 + 75 14C. The canals were more or less u-shaped, symmetrical and shallow. Stones were found along the sides of the canals which are thought to have been used to protect against erosion. The placement and slope of the canals demonstrates engineering planning. The upkeep for these canals also reveal social organization of labor. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Zaña Valley」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.