They are regarded as being enveloped in regenerated gneisses . 它们被认为包围在再生的片麻岩之中。
Rocks to the north and south of the gneiss zone are lithologically and structurally distinct from it . 片麻岩带南北两侧的岩石,在岩性上及构造上都和它大不相同。
The nickel mineralization is contained in a layered basic mass if surrounded and underlain by an archean gneiss complex . 此处镍矿化产于一层状基性岩块内,其四周和下面都为太古代片麻岩杂岩围绕。
In several altered granites and gnoisses nascimento monitored swelling began almost immediately after the water was added . 在Nascimento观察的几块蚀变的花岗岩和片麻岩中膨胀作用是在加水之后几乎是立即就发生。
The banded gneisses underlying the mine field are, as a rule, micaceous, the amount of biotite determining mainly the shades of the bands . 本矿区的带状片麻岩照例富含云母,黑云母的多少决定片麻岩条带的色调。