石质为主

[aboooot]

Dear friend,

do you know what does 石质为主 mean?

I've found it in this sentence:

石质为主的坡地景观由国家体育场用地的四周边缘微微升起，平缓而不易被人察觉，形成了巨大的完型雕塑般的“鸟巢”的天然基座。

[monto]

石质为主

stone texture as the main or mainly stone texture

[aboooot]

so the translation should be something like this, right?

An hilly landscape mainly made of stones smoothly and imperceptiblement rises up from the four sides of the National Stadium and formes the natural base of the huge and sculptural "Bird's Nest".

[yuanetking]

用石头做的...