2001年,成都市金沙遗址发掘出土了大批珍贵文物,同时在遗址祭祀区内发现了大量象牙、鹿角、獠牙等骨角质文物的堆积。古象牙还没有变成化石, 而腐蚀令其质地相当脆弱,出土后不加保护很快就会风化成粉末。对这种结构致密且含水率较高的象牙保护,国内外还未见成功报道,因此保护任务十分紧 In 2001, a large number of precious relics unearthed were excavated from the Jinsha site in Chengdu. At the same time, a large number of bone horny artifacts such as ivory, antlers and fangs were found in sacrificial areas. The ancient ivory has not yet become fossilized, and its texture is quite vulnerable to corrosion, unprotected unearthed soon after weathered into powder. For this structure of dense and high moisture content of ivory protection, has not been successfully reported at home and abroad, so the protection of the task is very tight