翻訳と辞書 Words near each other ・ Ground rule double ・ Ground rules ・ Ground sample distance ・ Ground segment ・ Ground sloth ・ Ground Snake ・ Ground speed ・ Ground speed radar ・ Ground spider ・ Ground squirrel ・ Ground stable barn ・ Ground start ・ Ground state ・ Ground State (Angel) ・ Ground station ・ Ground stone ・ Ground stop ・ Ground substance ・ Ground support equipment ・ Ground System Architectures Workshop ・ Ground tissue ・ Ground tit ・ Ground track ・ Ground Training Competition ・ Ground truth ・ Ground truth (disambiguation) ・ Ground turkey ・ Ground tyrant ・ Ground vibration boom ・ Ground vibrations 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 Ground stone ： ウィキペディア英語版 Ground stone In archaeology, ground stone is a category of stone tool formed by the grinding of a coarse-grained tool stone, either purposely or incidentally. Ground stone tools are usually made of basalt, rhyolite, granite, or other cryptocrystalline and igneous stones whose coarse structure makes them ideal for grinding other materials, including plants and other stones. == Origin == The adoption of ground stone technology is associated closely with the Neolithic, also called the New Stone Age. The Stone Age comes from the three-age system developed by Christian Jürgensen Thomsen. In the Levant ground stones appear in Mesolithic 2 (Natufian). In prehistoric Japan, ground stone tools appear during the Japanese Paleolithic, possibly predating adoption elsewhere in the Neolithic by 25,000 years.〔"Prehistoric Japan, New perspectives on insular East Asia", Keiji Imamura, University of Hawaii Press, Honolulu, ISBN 0-8248-1853-9〕 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「Ground stone」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.