並前往http://sip.csjh.tp.edu.tw/sites/geology/DocLib11/%E9%BB%83%E4%BA%88%E6%9A%84%E8%80%81%E5%B8%AB/%E4%B8%AD%E5%9C%8B%E5%9C%B0%E7%90%86%E4%B8%8A%E8%AA%B2%E7%B4%A0%E6%9D%90/8%E4%B8%8B/8-2-ch6.pdf
