散体堆体由覆盖废石层和矿石层两部分组成的，散体颗粒的粒径组成分成1 ~ 10组，用中间值表示每一组颗粒的粒径。

The loose body consists of ore layer and mullock layer, and the size of the particles in loose body could be divided into 1 ~ 10 fractions, presented with average value.

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埃斯康迪达在西班牙语中有“隐藏”的意思，正暗示了铜矿的矿体埋藏在废石层下几百米深的地方，而从地表却一丝痕迹也看不出来。

Escondida means "hidden" in Spanish, and it refers to the fact that the copper ore body was buried beneath hundreds of meters of barren rock, and the surface geology gave no signs of its presence.

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