The next day the silcrete had become a deep red colour and was easily flaked.
第二天，砾岩石已经变成了深红色，并且很容易制成片。
None of the material used to make these advanced tools matched local silcrete outcrops.
制造这些高级工具的材料中并没有能与当地的硅结砾岩地表岩层相匹配的。
Using the heated stone, the researchers were able to produce realistic copies of silcrete tools.
用这种加热过的石头，研究人员得以造出砾岩工具的复制品。
To test the theory, the scientists recreated what ancient tool makers might have done by heating a pile of silcrete stone in a fire pit.
为了检验这个理论，科学家们通过在一个火坑里加热砾岩石，重现了远古工匠们可能的做法。
The principal exploration target for the area is the drainage system that contains the calcrete and silcrete units that host the carnotite-bearing secondary uranium mineralisation.
该区域的主要勘探目标是，含有钙质结砾岩和钒钾铀矿砾岩石单元的水系，这些岩石赋存着含有钒钾铀矿的次生矿化带。
The principal exploration target for the area is the drainage system that contains the calcrete and silcrete units that host the carnotite-bearing secondary uranium mineralisation.
该区域的主要勘探目标是，含有钙质结砾岩和钒钾铀矿砾岩石单元的水系，这些岩石赋存着含有钒钾铀矿的次生矿化带。
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