亨希尔·伍德博士说，红色赭石的假设的象征性作用来自大量普遍的红色材料。这些在许多非洲遗址上发现的红色材料已达16万年之久。
The assumed symbolic role of red ocher, said Dr. Henshilwood, comes from the large amounts of the predominantly red material found at a number of African sites as old as 160, 000 years.
科学分析表明，这些颜色是源自赭石和其他铁氧化物磨成的细粉。
Scientific analysis reveals that the colors were derived from ocher and other iron oxides ground into a fine powder.
这些工匠们只是来工作，收集他们附近的锤石和磨石以及可能远至12英里处的大块赭石。
The craftsmen came only to work, collecting their hammer stones and grindstones nearby and the chunks of ocher from perhaps as far away as 12 miles.
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